F2970L-S18-R [UTC]
FOR FAN MOTOR SINGLE-PHASE FULL-WAVE DRIVER;
| 型号： | F2970L-S18-R |
| 厂家： | 
Unisonic Technologies |
| 描述： | FOR FAN MOTOR SINGLE-PHASE FULL-WAVE DRIVER 电动机控制 驱动 |
| 文件： | 总6页 (文件大小：169K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UNISONIC TECHNOLOGIES CO., LTD
F2970
Preliminary
LINEAR INTEGRATED CIRCUIT
FOR FAN MOTOR
SINGLE-PHASE FULL-WAVE
DRIVER
DESCRIPTION
The UTC F2970 is a single-phase full-wave bipolar driver
control IC with excellent efficiency for fan motor.
SOP-18
FEATURES
* Single-phase full-wave drive (16V to 1.2A transistors are built in)
* Speed adjustment function by thermistor input and external
signal incorporated
→Enables silent and low-vibration variable speed control
through direct PWM control with separately-excited upper tR
* Kick-back absorption circuit are built in
* Current limiter function (The limiter value determined with Rf,
limit at IO=480mA with RL=1Ω connection,)
* Low-consumption, low-loss, and low-noise drive enabled by the
soft switching circuit during phase shift
* HB incorporated
* Lock protection and automatic reset functions incorporated
* FG (rotation detection) output
* Regeneration Di incorporated with less external parts
* Thermal shutdown circuit incorporated
ORDERING INFORMATION
Ordering Number
Lead Free
Package
Packing
Halogen Free
F2970G-S18-T
F2970G-S18-R
F2970L-S18-T
SOP-18
SOP-18
Tube
F2970L-S18-R
Tape Reel
Note: xx: Output Voltage, refer to Marking Information.
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Copyright © 2013 Unisonic Technologies Co., Ltd
QW-R109-035.a
F2970
Preliminary
LINEAR INTEGRATED CIRCUIT
PIN CONFIGURATION
1
2
3
4
OUT2
18
17
P-GND
OUT1
VM
VCC
16
15
14
13
12
S-GND
6VREG
CT
WH
WL
UTC
F2970
5
6
VTH
IN-
HB
RMI
P-IN
7
8
9
11
10
IN+
FG
CPWM
PIN DESCRIPTION
PIN NO.
PIN NAME
OUT2
VM
DESCRIPTION
1
2
Output2
Sense pin of current limiter
Power supply
3
VCC
WH
4
OSC input
5
WL
OSC output
6
VTH
Variable speed function input
Lowest speed setting voltage
Dricte PWM speed control pin
7
RMI
8
P-IN
9
CPWM
FG
PWM oscillator frenquency setting capacitor
Speed detection output
The hall sensor input
Power the hall sensor 1.25V
The hall sensor input
Setting lock protection time
VREF 6V
10
11
12
13
14
15
16
17
18
IN+
HB
IN-
CT
6VREG
S-GND
OUT1
P-GND
Control system GND
Output1
Motor system GND
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F2970
Preliminary
LINEAR INTEGRATED CIRCUIT
BLOCK DIAGRAM
FG
RMI
VTH
-
Overheat
Protection
+
H: Rotation mode
CPWM
P-IN
Comparator
+
L: Regeneration
mode
-
Current
control
circuit
VCC
VM
OUT
OUT
Constant
voltage
Delay
circuit
6VREG
HB
Controller
1.25V
Delay
circuit
IN+
IN-
Oscillation
Hysteresis
AMP
Charge/
discharge
CT
VTH
WH WL
CPWM
S-GND
RMI
P-IN
P-GND
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F2970
Preliminary
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATING (TA=25°C)
PARAMETER
SYMBOL
VCC
RATINGS
UNIT
V
Maximum supply Voltage VCC
Maximum supply Voltage VM
17
17
VM
V
OUT Pin Maximum Output Current
OUT Pin Output Withstand Voltage
Maximum Output Current of HB
VTH, RMI Input Pin Withstand Voltage
P-IN Input Pin Withstand Voltage
FG Output Pin Output Withstand Voltage
FG Output Current
IOUT
1.2
A
VOUT
IHB
18
V
10
mA
V
VTH, RMI
VP-IN
VFG
7
VCC
18
V
V
IFG
10
mA
W
°C
°C
Allowable Power Dissipation
Operating Temperature
Storage Temperature
Specified substrate (Note 1)
PD
0.8
TOPR
TSTG
-30~90
-55~150
Notes:
Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
1. Specified substrate: 30mm×30mm×0.8mm, paper phenol.
RECOMMENDED OPERATING RANGES (TA=25°C)
PARAMETER
SYMBOL
VCC
RATINGS
4.5~16
3.5~16
0~6
UNIT
V
VCC Supply Voltage
VM Supply Voltage
VM
V
VTH, RMI Input Level Voltage Range
P-IN Input Level Voltage Range
VTH, RMI
VP-IN
V
0~VCC
0.5~4
V
Triangular Wave Input Range
VRM
V
Hall Input Common Phase Input Voltage Range
VICM
0.2~3
V
ELECTRICAL CHARACTERISTICS (TA=25°C, VCC=12V, Rf=0Ω, unless otherwise specified.)
PARAMETER
SYMBOL
ICC1
TEST CONDITIONS
During Drive
MIN
12
TYP
15
MAX
18
UNIT
mA
mA
V
Circuit Current
ICC2
During Lock Protection
IHB=5mA
11
14
17
HB Voltage
VHB
1.12
5.85
3.4
1.22
5.95
3.6
1.32
6.10
3.8
6VREG Voltage
V6VREG
VCTH
VCTL
ICT1
I6VREG=5mA
V
Pin-CT H Level Voltage
Pin-CT L Level Voltage
Pin-CT Charge Current
Pin-CT Discharge Current
CT Charge/Discharge Current Ratio
OUT Output L Saturation Voltage
OUT Output H Saturation Voltage
Current Limiter
V
1.4
1.6
1.8
V
2.2
µA
µA
ICT2
0.22
6.8
RCT
VOL
IO=200mA
0.1
0.2
0.8
V
V
VOH
IO=200mA, Rf=1Ω
0.6
VRf
480
mV
Zero Peak Value (Including
Offset and Hysteresis)
IFG=5mA
Sensitivity of Hall Input
VHN
10
20
mV
FG Output Pin L Voltage
VFG
IFGL
0.2
0.3
30
V
FG Output Pin Leak Current
VFG=7V
µA
Design Guarantee Value
(Note 1)
Overheat Protection
THD
180
°C
Note: 1. Design target value and no measurement was made.
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F2970
Preliminary
LINEAR INTEGRATED CIRCUIT
TRUTH TABLE
VTH
L
(OPEN)
PIN
L
IN-
H
L
IN+
L
CT
L
OUT1
H
OUT2
L
FG
L
Mode
Running-Drive
L
H
L
L
H
OFF
L
L
H
L
OFF
L
L
H
Running-Regeneration
L
H
L
OFF
L
OFF
L
-
-
-
-
H
H
-
H
L
OFF
L
Output Regeneration Mode
with External Signal
L
H
L
OFF
L
OFF
L
H
L
H
H
OFF
L
Lock Protection
-
H
OFF
OFF
Notes: 1.VTH, P-IN=L means VTH, P-IN<CPWM
2.VTH, P-IN=H means VTH, P-IN>CPWM
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F2970
Preliminary
LINEAR INTEGRATED CIRCUIT
TYPICAL APPLICATION CIRCUIT
Rf
*4
CM
VCC
*2
VCC
VM
HB
*8
Hall
IN-
*7
*5
FG
IN+
6VREG
*3-3
*3-1
OUT1
R4
R5
R6
C=2200~4700pF
R=20~50Ω
PIN
WH
UTC
F2970
R1
PWM-IN
R2
R3
R7
OUT2
CT
WL
RTU
*3
RMI
*3-2
R1
R8
CT=0.47~1µF
VTH
WH
PGND
SGND
*1
R2
R3
TH
WL
CPWM
CP=100pF
*f=25kHz
*6
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
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