BD16805FV-ME2_技术文档

Datasheet

Three Phase Motor Predriver IC for automotive

Built-in the Phase adjustment control and

180°energizing drive

Three Phase Motor Predriver

BD16805FV-M

●General Description

BD16805FV-M is three phase motor driver for air conditioner blower motor, battery cooling fan motor, and seat cooling fan

motor. This IC can implement silent drive by 180° energizing drive. The BD16805FV includes a built-in phase adjustment

control function to drive highly effective. The setting that can correspond to various motor controls is possible.

(PWM frequency, Overcurrent protection limit, Start time and Lock protection)

●Features

●Packages

SSOP-B40

■

AEC-Q100 Qualified

180° energizing

Phase adjustment control

Built-in charge pump

Built-in MUTE return and uptime setting

Normal rotation/reversal rotation switch function

1FG/3FG switch function

Speed control by DC input and PWM input

Output mode can be selected

Built-in overcurrent protection circuit(OCP)

(With limit adjustment function)

Lock protection function

13.6 ㎜×7.80 ㎜×1.80 ㎜

●Applications

■

Air conditioner blower motor

Battery cooling fan motor

Seat cooling fan motor

■

Built-in under voltage protection circuit(UVLO)

Built-in over voltage protection circuit(OVP)

Built-in thermal shutdown (TSD)

●Typical Application Circuits

0.1uF

BATTERY

VCC

VG

C_P C_M

VREG

DUH

VS_U

DUL

HU+

HU-

HV+

HV-

HW+

HW-

HALL

DVH

VS_V

DVL

Motor

HALL

DWH

VS_W

DWL

VDEG

MODESEL

FR

RNF

FGSW

LOCPL

PWM

VTH

PWM SIGNAL

MCU Standard

Power Supply

100kΩ

CT2

AL

470pF～10000pF

COSC

CAGC

CT1

ALARM SIGNAL

1uF

100kΩ

VREG

0.1uF～10uF

FG

1FG/3 FG SIGNAL

MCT2

STB

CT2 DISCHARGE SIGNAL

STB SIGNAL

PGND

GND

○Product structure：Silicon monolithic integrated circuit ○This product is not designed protection against radioactive rays.

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●Absolute maximum ratings（Ta=25℃）

Parameter

Symbol

Limits

Unit

Power supply voltage

Input voltage 1

VCC

STB

60

V

7

Input voltage 2

VREG＋0.7

PWM / FR / MODESEL / VDEG / FGSW / VTH / MCT2

D＊H / VS_U / VS_V / VS_W

60

15

7

Output voltage

D＊L

FG/AL

Pd

Power dissipation

1.125

W

℃

Operating temperature range

Storage temperature range

Joint part temperature

-40～110

-55～150

Topr

Tstg

Tjmax

150

●Recommended operating conditions（Ta=25℃）

Parameter

Symbol

VCC

Limits

Unit

V

Power supply voltage range of

8～18

operation

Exceed neither Pd nor ASO.

ROHM standard board(70×70×1.6[mm], glass epoxy standard board)

Reduce by 9.0mW/℃ at Ta ≧ 25℃

●Block diagram

●Power dissipaton

Pd [W]

C_P

C_M

VG

VCC

Charge

pump

VREG

OVP

UVLO

1.125

1.0

FR

DUH

VS_U

DUL

HU+

HU-

+

-

HV+

HV-

DVH

VS_V

DVL

+

-

0.5

HW+

HW-

+

-

DWH

VS_W

DWL

VDEG

PWM

Ta[℃]

0

25

50

75 100 110 125 150

PGND

ROHM standard board(70×70×1.6[mm],

glass epoxy standard board)

OCP

RNF

LOCPL

CT2

VTH

Reduce by 9.0mW/℃ at Ta ≧ 25℃

MCT2

CT1

AL

LOCK

●Package Dimensions

MODESEL

CAGC

COSC

OSC

TSD

FG

FGSW

STB

LOGIC

STANDBY

GND

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●Pin description

No.

1

2

Symbol

GND

FG

Description

No.

21

Symbol

TEST

Description

GND terminal

TEST terminal

1FG / 3FG output terminal

22 MODESEL Output mode selection terminal

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

AL

LOCPL

RNF

Alarm signal output terminal

Current limit setting terminal

Current detection terminal

N.C.

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

FR

FGSW

STB

VREG

HU+

HU-

HV+

HV-

HW+

HW-

Normal rotation/reversal rotation switch terminal

1FG / 3FG switch terminal

Stand by terminal

Internal standard power supply terminal

Hall input terminal

N.C.

DWL

VS_W

DWH

DVL

VS_V

DVH

PGND

DUL

VS_U

DUH

C_M

C_P

W phase L side FET drive output terminal

W phase Motor output terminal

W phase H side FET drive output terminal

V phase L side FET drive output terminal

V phase Motor output terminal

V phase H side FET drive output terminal

POWER GND terminal

U phase L side FET drive output terminal

U phase Motor output terminal

U phase H side FET drive output terminal

Charge pump capacitor connection terminal-

Charge pump capacitor connection terminal+

Pre driver circuit power supply terminal

Power supply terminal

Hall input terminal

VTH

CT2

Control input terminal(DC)

MUTE return and uptime setting terminal

Control input terminal(PWM)

Lock protection time setting terminal

Capacitor for phase amends

Phase adjustment control

CT2 connection for capacitor discharge terminal

PWM frequency setting terminal

PWM

CT1

CAGC

VDEG

MCT2

COSC

VG

VCC

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●Ordering Information

B

D

1

6

8

0

5

F

V

-

ME2

Package

FV: SSOP-B40

Packaging and forming specification

E2: Embossed tape and reel

M: High reliability products

●Physical Dimension Tape and Reel Information

●Marking Diagram

BD16805FV

LOT No.

1PIN MARK

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●Electrical characteristics(Unless otherwise noted, VCC = 8V～18V, Ta = -40℃～110℃,Hall input amplitude＝100mVpp,

COSC=1000pF, Between C_P and C_M 0.1µF, between VG and VCC 0.1µF, CAGC=1µF, VS_U, VS_V, VS_W＝GND ※1)

Limits

Parameter

Symbol

Unit

Condition

MIN.

TYP.

MAX.

【Whole】

Circuit current 1

Circuit current 2

ICC1

ICC2

-

0

10

µA

STB=L ※2

STB=H、VTH=0V

15.2

30.4

mA

VS_U,VS_V,VS_W=open

【Hall amplifier】

Input bias current

IB

-10

45

0

-

10

-

µA

Input level

VINH

VHAR

mVpp Both sides input level

V

Range of phase input

【VREG terminal】

1.3

-

3.7

VREG voltage

VREG

5.2

5.5

5.8

Ｖ

At -20mA SOURCE ※3

【STB terminal】

"L" Range of level voltage

"H" Range of level voltage

Outflow current

VSTBL

VSTBH

ISTBL

0

3.0

-

1.0

VREG

10

V

-

µA

VSTB=0V

VSTB=5V

Inflow current

ISTBH

20

40

80

【PWM terminal】

"L" Range of level voltage

"H" Range of level voltage

Outflow current

VPWML

VPWMH

0

3.0

-

1.0

VREG

10

V

IPWML

-

µA

kΩ

%

VPWM=0V

VPWM=5V

Inflow current

IPWMH

25

50

100

320

15.5

10.5

99.5

94.5

7

Output resistance

RPWM

80

200

12.5

7.5

97.5

92.5

5

InputdeadzoneoutputONDUTY1

InputdeadzoneoutputOFFDUTY1

InputdeadzoneoutputOFFDUTY2

InputdeadzoneoutputONDUTY2

Inputdeadzonehysteresiswidth12

Voltage L of torque input mask

【VTH terminal】

ONDUTY1

OFFDUTY1

OFFDUTY2

ONDUTY2

DUTYHYS12

TQML

9.5

4.5

95.5

90.5

3

Figure -4 reference

0.5

2.5

4.5

VMODESEL=H Figure -8 reference

Predriver output DUTY1

Predriver output DUTY2

Predriver output DUTY3

Predriver output DUTY4

【VDEG terminal】

DUTY 1

DUTY 2

DUTY 3

DUTY 4

49.1

59.2

65.8

75.7

56.6

66.7

73.3

83.2

64.1

74.2

80.8

90.7

%

VTH=1.0V ※4Figure -9 reference

VTH=2.0V ※4Figure -9 reference

VTH=2.4V ※4Figure -9 reference

VTH=2.9V ※4Figure -9 reference

RangeofPhaseadjustmentcontrol

Phaseadjustmentcontrolaccuracy

VVDEG

FHDEG

27

-3

30

0

33

3

deg

VDEG=0V

VDEG=2.5V

※1 VS_U, VS_V, VS_W＝GND only at measuring electric characteristics. In normal operation, please connect to motor output of each phase

※2 Please set input pins (PWM pin、FR pin、MODESEL pin、VDEG pin、FGSW pin、VTH pin、MCT2 pin) to 0V

※3 Please connect to phase compensation capacitor 1µF or more between the VREG and GND.

※4Measure output DUTY with condition of applying 2.5Vpp standard ±100mV DC to hall inputs and 2.2Vpp to COSC in Test mode.

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●Electrical characteristics(Unless otherwise noted, VCC = 8V～18V, Ta = -40℃～110℃,Hall input amplitude＝100mVpp,

COSC=1000pF, Between C_P and C_M 0.1µF, between VG and VCC 0.1µF, CAGC=1µF, VS_U, VS_V, VS_W＝GND ※1)

Limits

Parameter

Symbol

Unit

Condition

MIN.

17.5

TYP.

MAX.

32.5

【COSC terminal】

OSC frequency

FOSC

25

kHz

COSC=1000pF ※5

【FR terminal】

"L" Range of level voltage

"H" Range of level voltage

Outflow current

VFRL

VFRH

IFRL

0

3.0

-

1.0

VREG

10

V

-

µA

VFR=0V

VFR=5V

Inflow current

IFRH

25

50

100

【FGSW terminal】

1FG Range of level voltage

3FG Range of level voltage

Outflow current

VFG1L

VFG3H

IFG1L

0

3.0

-

1.0

VREG

10

V

-

µA

VFGSW=0V

VFGSW=5V

Inflow current

IFG3H

25

50

100

【MODESEL terminal】

"L" Range of level voltage

"H" Range of level voltage

Outflow current

VMODEL

VMODEH

IMODEL

IMODEH

0

3.0

-

1.0

VREG

10

V

-

µA

VMODESEL=0V

VMODESEL=5V

Inflow current

25

50

100

【AL terminal】

"L" Range of level voltage

"H" Range of level voltage

【FG terminal】

VALL

VALH

0

-

0.3

-

V

AL=5V input（PULL UP100kΩ）

4.8

5

"L" Range of level voltage

"H" Range of level voltage

【LOCPL terminal】

Overcurrent detection

COMP offset

VFGL

VFGH

0

-

0.3

-

V

FG=5V input（PULL UP100kΩ）

4.8

5

VOCP

-10

-

10

mV

LOCPL=20mV、200mV

OFFSET

OCP MUTE delay time

OCP release delay time

OCPMUTET₀

OCPMUTET₁

-

20

65

µs

15

36

【CT1 terminal】

SOURCE current

ILOCK

RONCT1

ILEAKCT1

0.5

1

81

0

1.5

320

1

µA

Ω

Figure-3 reference

for lock protection detection

CT1

SW ON resistance

-

for Discharge

CT1 Leakage at SW OFF for

Discharge

µA

CT1 Comparison H Voltage

CT1 Comparison L Voltage

VLOCKP_H

VLOCKP_L

3.40

0.45

3.85

0.55

4.30

0.65

V

※5Please use COSC within the range of 470pF-10000pF.

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●Electrical characteristics(Unless otherwise noted, VCC = 8V～18V, Ta = -40℃～110℃,Hall input amplitude＝100mVpp,

COSC=1000pF, Between C_P and C_M 0.1µF, between VG and VCC 0.1µF, CAGC=1µF, VS_U, VS_V, VS_W＝GND ※1)

Limits

Parameter

Symbol

Unit

Condition

MIN.

TYP.

MAX.

【MCT2 terminal】

"L" Range of level voltage

"H" Range of level voltage

Inflow current

VMCT2L

0

3.0

-

1.0

VREG

10

V

VMCT2H

IMCT2L

IMCT2H

-

µA

VMCT2=0V

VMCT2=5V

Outflow current

25

50

100

CT2 STBY

SW ON resistance

for Discharge

RONCT2

-

105

0

260

1

Ω

VMCT2=5V

CT2 Leakage at SW OFF for

Discharge

ILEAKCT2

µA

【VG terminal】

2×VCC 2×VCC 2×VCC

Pressure voltage 1

Pressure voltage 2

Pressure voltage 3

VG1

VG2

VG3

V

VCC=8V～11.5V

VCC=11.5V～18V

-1.5

VCC

+10

-0.5

+0.5

VCC

+13

VCC

+11.5

VG drop voltage

-

0.6

1.0

at -5mA SOURCE

【Pre driver output terminal】

D*H H voltage1

VOHH1

VOHL1

23

-

0

-

31

0.2

13

V

VCC=18V ※6

VCC=8V ※6

VCC=18V ※6

VCC=8V ※6

D*H L voltage1

D*L H voltage1

VOLH1

10

-

V

D*L L voltage1

VOLL1

0

-

0.2

16.5

0.2

8.5

0.2

55

V

D*H H voltage2

VOHH2

13.5

-

V

D*H L voltage2

VOHL2

0

-

V

D*L H voltage2

VOLH2

7.5

-

V

D*L L voltage2

VOLL2

0

-

V

D*H Standing up slew rate 1

D*H Standing fall slew rate 1

D*L Standing up slew rate 1

D*L Standing fall slew rate 1

D*H Standing up slew rate 2

D*H Standing fall slew rate 2

D*L Standing up slew rate 2

D*L Standing fall slew rate 2

D*H D*L

VOHUSR1

VOHDSR1

VOLUSR1

VOLDSR1

VOHUSR2

VOHDSR2

VOLUSR2

VOLDSR2

14

30

14

20

14

V/µs

-

120

60

-

85

-

45

-

70

-

50

-

55

TDEAD

0.30

0.95

3.00

µs

Dead Time(Standing up)

【Others】

Over voltage detection

Under voltage detection

VOVP

25

30

35

V

VUVLO

5.3

5.8

6.3

※6Measure when the capacitor of 10000pF is connected with the output as external MOS-FET gate capacitance.

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HU+

HU-

HV+

HV-

HV+

HV-

HW-

HW+

HW-

HW+

DUH

DUL

Pre driver output

integral value

calculation interval

DVH

DVL

DWH

：PWMꢀ

Operation

DWL

1FG OUTPUT

（FGSW=Low ）

3FG OUTPUT

（FGSW=Hi ）

420 450

360 390

300 330

180 210 240 270

Position[deg]

0

30 60 90 120 150

Expansion

DWH

DWL

Figure -1（a） Timing chart（FR=L：Forward）

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HU+

HU-

HV-

HV+

HW+

HW-

HW+

HW-

DUH

DUL

Pre driver output

integral value

calculation interval

DVH

DVL

DWH

：PWMꢀ

Operation

DWL

1FG OUTPUT

（FGSW=Low ）

3FG OUTPUT

（FGSW=Hi ）

420 450

360 390

300 330

180 210 240 270

Position[deg]

0

30 60 90 120 150

Expansion

DWH

DWL

Figure -1（b） Timing chart（FR=H：Reverse）

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●Operation explanation

1. The state of the output at each MUTE

AL

Pre driver output

Protection mode

Charge pump output

（Alarm signal ）

(D*H）

（D*L）

Over current protection

Lock protection

Low

Hi

Low

ACTIVE

MUTE

Under voltage protection

Over voltage protection

Low

Thermal shutdown

Low

ACTIVE

2. Current limit (overcurrent protection circuit)

Current limit current I is decided by the resistance setting of LOCPL and the RNF current detection terminal.

A current limit operates by the value decided as shown in the figure below by the following calculation types.

Please use the setting range of LOCPL with 20mV-200mV.

Please use it noting S/N when setting LOCPL by a low value.

I＝V1 / RNF

External Power Mos

LOCPL

V1

RNF

Current I

RNF

Figure -2(a) Overcurrent limit equivalent circuit diagram

Over current occurred continuously

OCPMUTET₀

Over current just occurred at a moment

OCPMUTET₀

OCPMUTET₁

LOCPL

RNF

MUTE

PWM

D*H/L

PWM

Figure -2(b) Overcurrent Protection Timing chart

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3. Lock protection function

If hall input signal is stop, the lock protection circuit is determined that detection of lock protection. When the lock

protection circuit is detect lock protection, all pre driver output is fix to Low.

Terminal CT1 capacitor and lock protection ON time（TON1）

TON1（Charging time）＝(VLOCKP_H- VLOCKP_L)/（ILOCK/C）

C：CT1 Capacity of terminal external capacitor

ILOCK：SOURCE current for lock protection detection （TYP.:1µA）

VLOCKP_H：Terminal CT1 comparison H voltage（TYP.:3.85V）

VLOCKP_L：Terminal CT1 comparison L voltage（TYP.:0.55V）

Reference value (example)

At CT1=1µF

TON1=(3.85-0.55)V/（1µA/1µF）=3.3s

At CT1=10µF

TON1=(3.85-0.55)V/（1µA/10µF）=33s

Our company is recommending the range of 0.1µF-10µF to the capacitor of CT1.

CT1 is shorted to GND when the lock protection time is not set.

Constant current

1uA[ TYP ]

SW for discharge

CT1

Figure -3 CT1 Charge Discharge equivalent circuit chart

When the lock protection is released and it reactivates, the CT1 capacitor should be completely discharged.

Discharge SW of Figure-3 is turned on to integral value 50% as shown in Figure-7, 8. Please raise PWM input DUTY

after discharging the CT1 capacitor.

（Reference）

ｔ

The discharge time is decided by the expression of ΔV=（1-e^{- /(C×R)}）×ΔV(initial value).

At ｔ＝C×R, it becomes the standing fall time of 63.2%.

ON resistance of SW for CT1 discharge becomes MAX.=320Ω.

(Refer to electric characteristic CT1 terminal item P.3. )

4. Over power supply voltage output OFF function

Over power supply voltage output OFF function is built into as output protection at the over voltage. When the

impressed voltage to the terminal VCC becomes 30V (TYP.) or more, all Pre driver output terminal becomes Low.

However, it is only STB=Hi as the operation condition. Please note that this function doesn't operate because the

current supply also stop in IC at STB=Low (At the standby).

Over power supply voltage output OFF function is built into. Please do not exceed the absolute maximum rating so that

there is a possibility of destruction when the absolute maximum rating of the power supply voltage is exceeded.

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5. Torque input instruction＜PWM input DUTY・VTH（DC input）＞

This circuit compares OSC (triangular wave) and the voltage proportional to torque.

100.0

96.2

89.9

66.9

47.7

0 0.080.25

0.41

12.5

1.0

30.3

2.2

66.7 75.8

2.5 3.05

92.5

3.2 3.3 VTH INPUT[V]

97.5 100

PWM INPUT DUTY[%]

2.5

0

7.5

Figure -4 PWM INPUT DUTY、VTH（DC INPUT） vs OUTPUT DUTY（MODESEL=L）

Integral value in Figure-4 is measured in 120°interval (please refer to Figure-1(a), (b))

Hysterics has been installed in PWM input DUTY (VTH input). 12.5%(0.41V) ( TYP.) > is PWM DUTY of standing up

in the lower side, and 7.5%(0.25V) ( TYP.) is PWM DUTY of the standing fall.

97.5%(3.2V) ( TYP.) is PWM DUTY of the standing fall in the upper side, and 92.5%(3.05V) ( TYP.) is PWM DUTY

of standing up. PWM input DUTY (VTH input) can control the torque output voltage by 12.5%(0.41V)-97.5%(3.2V) ( TYP.).

It becomes similar set about 12.5%-97.5% torque output voltage at MODESEL=HI.

OSC (triangular wave) and the voltage proportional to torque are compared by 2.5V standard. Figure-5 becomes the

torque output voltages and shape of waves of triangular wave when VTH=2.5V is input.

The amplitude of the torque output voltage compared with a triangular wave changes when VTH is changed

such as Figure-4.

Triangular

Wave:1Vpp

2.5V standard

Torque output

voltage

Figure -5 OCS（Triangular wave） and TORQUE OUTPUT VOLTAGE

（Using the PWM or DC input）

The capacitor is connected with CT2 and be short-circuited with the terminal VTH and use it when using PWM input

DUTY control. Please impress the input to VTH and control when using VTH(DC input) control.

Please install the R-C filter by external when installing the start delay. When DC and PWM are input, it is possible

to discharge of the capacitor in the terminal MCT2.

6. OSC (PWM oscillation frequency)

The oscillation frequency can be arbitrarily set with an external capacitor (terminal COSC). The theoretical formula

of the oscillation frequency is as follows.

Oscillation frequency [ Hz ]＝1/（COSC/25µA）

Please use the range where external capacitor (COSC) can be set with 470pF-10000pF.

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7. Start time and the deceleration time (brake)

When making it to ACTIVE(STB=Hi) from the standby(STB=Low), start time can be given to the output. The time of the

deceleration (brake) operates the same time as a start time.

The start return time and the deceleration time are indicated in Figure-6.

Because the start return time is decided CT2 external capacitor and internal resistance of IC, it is possible to adjust it

with CT2 external capacitor.

（The following

Refer to the expression of start and deceleration time）

（Reference）Terminal CT2 capacitor, start time, and deceleration time (TON2) are

TON2=C×R

C：Capacity of terminal CT2 external capacitor

R：Internal resistance of IC（TYP.：200kΩ）

Reference value（Example）

At CT2=1µF,

TON2=1µF×200kΩ=0.2s

At CT2=10µF,

TON2=10µF×200kΩ=2.0s

Standing

up time

[ TON2 ]

63.2%

Standing

fall time

Time

Standby

STB=L

Start time

STB=H

Deceleration [ brake ] time

Figure -6 Start time・Deceleration (brake) timing chart

A set value of CT2 holds PWM smooth input concurrently.

The shake accuracy after smoothness influences output DUTY accuracy. Please confirm the DUTY change and set the

optimal value.

The smoothness of PWM is recommended to set the cutoff frequency by 1/10 or less of the PWM input frequencies.

Please consult once when the PWM input frequency is used excluding the above-mentioned regulations.

（Reference）

fc（cutoff frequency）=1/（2πCR）

R： TYP.：200kΩ by internal resistance of IC（RPWM）

C：Capacity of terminal CT2 external capacitor

When making it to ACTIVE(STB=Hi) from the standby(STB=Low), the CT2 capacitor should be

completely discharged. Please fix the PWM input to DUTY 0% and discharge it by 200kΩ(TYP.)

resistance or please make to SW=HI(MCT2=5V) (ON resistance MAX.=260Ω) for MCT2 discharge for

the discharge of the CT2 capacitor (Figure-4).

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BD16805FV-M

8. Output mode selection

The output mode form becomes and two following selections become possible by the voltage of

the terminal MODESEL is impressed to L(0V - 1.0V) and H(3.0V - VREG).

100.0

96.2

89.9

66.9

47.7

0 0.080.25

0.41

12.5

1.0

30.3

2.2

66.7 75.8

2.5 3.05

92.5

3.2 3.3 VTH INPUT[V]

97.5 100

PWM INPUT DUTY[%]

2.5

0

7.5

Figure -7 PWM input DUTY（VTH input） vs OUTPUT DUTY （MODESEL=L）

100.0

96.2

89.9

66.9

47.7

0 0.080.25

0.41

12.5

1.0

30.3

2.2

66.7 75.8

2.5 3.05

92.5

3.2 3.3 VTH INPUT[V]

97.5 100

PWM INPUT DUTY[%]

2.5

0

7.5

Figure -8 PWM input DUTY（VTH input） vs OUTPUT DUTY （MODESEL=H）

9. TEST terminal

It is a test terminal among our company and please fix TEST terminal to Low.

10. External constant

Our company designs within the range of an external constant described in application circuit diagram.

Please consult our company once though there is a thing that the characteristic cannot guarantee, when the change is

necessary.

11. Pre driver Output DUTY

Pre driver Output DUTY is measured in Test mode.

Peak voltage of torque output at VTH=1V, 2V, 2.4V and 2.9V is shown at ①～④ in Figure-9 in measurement of pre driver

output DUTY. For measuring pre driver output DUTY, hall input is applied with DC voltage considerably to torque peak

voltage of ①～④ (hall input amplitude is assumed as 100mVpp). In this condition, torque output voltage is shown in

Figure-9 as ①’～④’. In addition, triangular waveform amplitude of COSC becomes 2.2Vpp. DUTY of pre driver output is

measured by comparison of voltage of ①’～④’ and triangular waveform 2.2Vpp

④

③

②

①

④’

③’

②’

①’

2.5V

2.5V standard

standard

Test

Mode

Triangular

waveform : 1Vpp

Torque Output Voltage

Triangular waveform in Test mode : 2.2Vpp

Figure -9 PREDRIVER OUTPUT DUTY Measure method

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TSZ22111・15・001

BD16805FV-M

● Cautions on use

1) We are careful enough for quality control about this IC. So, there is no problem under normal operation, excluding that

it exceeds the absolute maximum ratings. However, this IC might be destroyed when the absolute maximum ratings,

such as impressed voltages (VCC) or the operating temperature range,

is exceeded, and whether the destruction is short circuit mode or open circuit mode cannot be specified. Please take

into consideration the physical countermeasures for safety, such as fusing, if a particular mode that exceeds the

absolute maximum rating is assumed.

2) GND line

The ground line is where the lowest potential and transient voltages are connected to the IC.

3) Input terminal

Please do not add the voltage to each input terminal when you do not impress VCC to IC.

4) BEMF

BEMF might be changed depending on use conditions and an individual characteristic of the environment

and the motor. Please confirm there is no problem in the operation of IC by BEMF.

5) VCC

Please put coupling capacitor 10μF or more in the power supply between the power supply and GND.

6) Power dissipation

Power dissipation is changed by the state of the substrate mounting and the mounting environment of IC,

and take care enough about the heat design.

7) Power consumption

Power consumption changes greatly depending on the power-supply voltage and the output current. Please design

heat after considering the thermal resistance data and the transition thermal resistance data, etc. to consider power

dissipation, and so as not to exceed ratings.

8) ASO

Please set not to exceed ASO (area of safe operation) the output current and the power-supply voltage.

9) The circuit that limits the inrush current is not built into this IC. Therefore, please consider physical measures of putting

the current limitation resistance.

10) There is a possibility that the trouble of the malfunction occurs if the potential of the output terminal widely swings to

the potential of GND or less in this IC according to conditions such as the generation of heat condition, power-supply

voltages, and the use motors. For that case, please consider measures where trouble doesn't occur as shot key diode

is added between GND-output.

11) Radiation

This IC doesn't do the design that assumes use in strong electromagnetic field. Please confirm there is no problem in

the operation of IC by the substrate pattern layout and the circuit constant enough.

12) Thermal shutdown

The thermal shutdown circuit is built into as an overheating protection measures this IC. When the Chip temperature

of IC becomes 175℃(TYP.) or more, the output is opened. It returns to normal operation when becoming

150℃(TYP.) or less.

13) FG output signal

When the noise is generated in the hall signal, the FG signal might do chattering. Especially, the possibility that

chattering is caused as the power-supply voltage touches rises when rapidly changing from the normal rotation into

the reversal rotation or from the reversal rotation into the normal rotation. CAPA is inserted between the hall input

terminals to decrease the noise of the hall signal, and the attention such as enlarging the input level is necessary

when using it like this.

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TSZ22111・15・001

BD16805FV-M

14) Wrong direction assembly of the device.

Use caution when positioning the IC for mounting on printed circuit boards. The IC may be damaged if there is any

connection error.

15) Regarding input pin of the IC l

This monolithic IC contains P+ isolation and P substrate layers between adjacent elements to keep them isolated.

PN junctions are formed at the intersection of these P layers with the N layers of other elements, creating a parasitic

diode or transistor. For example, the relation between each potential is as follows:

When GND > Pin A and GND > Pin B, the PN junction operates as a parasitic diode.

When Pin B > GND > Pin A, the PN junction operates as a parasitic transistor.

Parasitic diodes can occur inevitably in the structure of the IC. The operation of parasitic diodes can result in mutual

interference among circuits, operational faults, or physical damage. Accordingly, methods by which parasitic diodes

operate, such as applying a voltage that is lower than the GND (P substrate) voltage to an input pin, should not be

used

Transistor(NPN)

Resistor

Terminal-A

Terminal-B

C

B

E

Terminal-A

C

E

B

Parasitic

element

P⁺

P

P⁺

P

P⁺

Surrounding

elements

Parasitic

element

P-Substrate

GND

Parasitic

element

Parasitic

element

GND

Figure -10 Simplified structure of IC

Status of this document

The Japanese version of this document is formal specification. A customer may use this translation version only for a reference

to help reading the formal version.

If there are any differences in translation version of this document formal version takes priority.

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Notice

Precaution on using ROHM Products

(Note 1)

1. If you intend to use our Products in devices requiring extremely high reliability (such as medical equipment

,

aircraft/spacecraft, nuclear power controllers, etc.) and whose malfunction or failure may cause loss of human life,

bodily injury or serious damage to property (“Specific Applications”), please consult with the ROHM sales

representative in advance. Unless otherwise agreed in writing by ROHM in advance, ROHM shall not be in any way

responsible or liable for any damages, expenses or losses incurred by you or third parties arising from the use of any

ROHM’s Products for Specific Applications.

(Note1) Medical Equipment Classification of the Specific Applications

JAPAN

USA

EU

CHINA

CLASSⅢ

CLASSⅣ

CLASSⅡb

CLASSⅢ

2. ROHM designs and manufactures its Products subject to strict quality control system. However, semiconductor

products can fail or malfunction at a certain rate. Please be sure to implement, at your own responsibilities, adequate

safety measures including but not limited to fail-safe design against the physical injury, damage to any property, which

a failure or malfunction of our Products may cause. The following are examples of safety measures:

[a] Installation of protection circuits or other protective devices to improve system safety

[b] Installation of redundant circuits to reduce the impact of single or multiple circuit failure

3. Our Products are not designed under any special or extraordinary environments or conditions, as exemplified below.

Accordingly, ROHM shall not be in any way responsible or liable for any damages, expenses or losses arising from the

use of any ROHM’s Products under any special or extraordinary environments or conditions. If you intend to use our

Products under any special or extraordinary environments or conditions (as exemplified below), your independent

verification and confirmation of product performance, reliability, etc, prior to use, must be necessary:

[a] Use of our Products in any types of liquid, including water, oils, chemicals, and organic solvents

[b] Use of our Products outdoors or in places where the Products are exposed to direct sunlight or dust

[c] Use of our Products in places where the Products are exposed to sea wind or corrosive gases, including Cl2,

H2S, NH3, SO2, and NO2

[d] Use of our Products in places where the Products are exposed to static electricity or electromagnetic waves

[e] Use of our Products in proximity to heat-producing components, plastic cords, or other flammable items

[f] Sealing or coating our Products with resin or other coating materials

[g] Use of our Products without cleaning residue of flux (even if you use no-clean type fluxes, cleaning residue of

flux is recommended); or Washing our Products by using water or water-soluble cleaning agents for cleaning

residue after soldering

[h] Use of the Products in places subject to dew condensation

4. The Products are not subject to radiation-proof design.

5. Please verify and confirm characteristics of the final or mounted products in using the Products.

6. In particular, if a transient load (a large amount of load applied in a short period of time, such as pulse. is applied,

confirmation of performance characteristics after on-board mounting is strongly recommended. Avoid applying power

exceeding normal rated power; exceeding the power rating under steady-state loading condition may negatively affect

product performance and reliability.

7. De-rate Power Dissipation depending on ambient temperature. When used in sealed area, confirm that it is the use in

the range that does not exceed the maximum junction temperature.

8. Confirm that operation temperature is within the specified range described in the product specification.

9. ROHM shall not be in any way responsible or liable for failure induced under deviant condition from what is defined in

this document.

Precaution for Mounting / Circuit board design

1. When a highly active halogenous (chlorine, bromine, etc.) flux is used, the residue of flux may negatively affect product

performance and reliability.

2. In principle, the reflow soldering method must be used on a surface-mount products, the flow soldering method must

be used on a through hole mount products. If the flow soldering method is preferred on a surface-mount products,

please consult with the ROHM representative in advance.

For details, please refer to ROHM Mounting specification

Notice-PAA-E

Rev.003

Precautions Regarding Application Examples and External Circuits

1. If change is made to the constant of an external circuit, please allow a sufficient margin considering variations of the

characteristics of the Products and external components, including transient characteristics, as well as static

characteristics.

2. You agree that application notes, reference designs, and associated data and information contained in this document

are presented only as guidance for Products use. Therefore, in case you use such information, you are solely

responsible for it and you must exercise your own independent verification and judgment in the use of such information

contained in this document. ROHM shall not be in any way responsible or liable for any damages, expenses or losses

incurred by you or third parties arising from the use of such information.

Precaution for Electrostatic

This Product is electrostatic sensitive product, which may be damaged due to electrostatic discharge. Please take proper

caution in your manufacturing process and storage so that voltage exceeding the Products maximum rating will not be

applied to Products. Please take special care under dry condition (e.g. Grounding of human body / equipment / solder iron,

isolation from charged objects, setting of Ionizer, friction prevention and temperature / humidity control).

Precaution for Storage / Transportation

1. Product performance and soldered connections may deteriorate if the Products are stored in the places where:

[a] the Products are exposed to sea winds or corrosive gases, including Cl2, H2S, NH3, SO2, and NO2

[b] the temperature or humidity exceeds those recommended by ROHM

[c] the Products are exposed to direct sunshine or condensation

[d] the Products are exposed to high Electrostatic

2. Even under ROHM recommended storage condition, solderability of products out of recommended storage time period

may be degraded. It is strongly recommended to confirm solderability before using Products of which storage time is

exceeding the recommended storage time period.

3. Store / transport cartons in the correct direction, which is indicated on a carton with a symbol. Otherwise bent leads

may occur due to excessive stress applied when dropping of a carton.

4. Use Products within the specified time after opening a humidity barrier bag. Baking is required before using Products of

which storage time is exceeding the recommended storage time period.

Precaution for Product Label

A two-dimensional barcode printed on ROHM Products label is for ROHM’s internal use only.

Precaution for Disposition

When disposing Products please dispose them properly using an authorized industry waste company.

Precaution for Foreign Exchange and Foreign Trade act

Since concerned goods might be fallen under listed items of export control prescribed by Foreign exchange and Foreign

trade act, please consult with ROHM in case of export.

Precaution Regarding Intellectual Property Rights

1. All information and data including but not limited to application example contained in this document is for reference

only. ROHM does not warrant that foregoing information or data will not infringe any intellectual property rights or any

other rights of any third party regarding such information or data.

2. ROHM shall not have any obligations where the claims, actions or demands arising from the combination of the

Products with other articles such as components, circuits, systems or external equipment (including software).

3. No license, expressly or implied, is granted hereby under any intellectual property rights or other rights of ROHM or any

third parties with respect to the Products or the information contained in this document. Provided, however, that ROHM

will not assert its intellectual property rights or other rights against you or your customers to the extent necessary to

manufacture or sell products containing the Products, subject to the terms and conditions herein.

Other Precaution

1. This document may not be reprinted or reproduced, in whole or in part, without prior written consent of ROHM.

2. The Products may not be disassembled, converted, modified, reproduced or otherwise changed without prior written

consent of ROHM.

3. In no event shall you use in any way whatsoever the Products and the related technical information contained in the

Products or this document for any military purposes, including but not limited to, the development of mass-destruction

weapons.

4. The proper names of companies or products described in this document are trademarks or registered trademarks of

ROHM, its affiliated companies or third parties.

Notice-PAA-E

Rev.003


型号：	BD16805FV-ME2
厂家：	ROHM
描述：	Brush DC Motor Controller, PDSO40, SSOP-40 电动机控制光电二极管
文件：	总19页 (文件大小：1147K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

BD16805FV-ME2 [ROHM]

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