LV8548MC-BH [ONSEMI]
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| 型号： | LV8548MC-BH |
| 厂家： | 
ONSEMI |
| 描述： | 暂无描述 驱动器 运动控制电子器件 信号电路 光电二极管 信息通信管理 |
| 文件： | 总6页 (文件大小：234K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Ordering number : ENA1802
Bi-CMOS integrated circuit
12V Low Saturation Voltage Drive
LV8548M
Forward/Reverse Motor Driver
Overview
The LV8548M is a 2-channel low saturation voltage forward/reverse motor driver IC. It is optimal for motor drive in
12V system products and can drive either two DC motors, one DC motor using parallel connection, or a 2-phase bipolar
stepping motor with 1-2 phase excitation mode drive.
Functions
• DMOS output transistor adoption (Upper and lower total RON=1Ω typ) • The compact package (MFP-10S) is adopted.
• For one power supply (The control system power supply is unnecessary.) • V
• Our motor driver IC, LB1948M, and compatible pin
max=20v, I max=1A
CC
• Current consumption 0 when standing by
O
• It is possible to connect it in parallel (parallel, connected operation of • Built-in brake function
drive ch).
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
V
Maximum power supply voltage
Output impression voltage
Input impression voltage
GND pin outflow current
Allowable Power dissipation
Operating temperature
Storage temperature
V
max
-0.3 to +20
-0.3 to +20
-0.3 to +6
1.0
CC
VOUT
V
V
V
IN
IGND
Pd max
Topr
For ch
*
A
1.05
W
°C
°C
-30 to +85
-40 to +150
Tstg
*: When mounted on the specified printed circuit board (57.0mm ×57.0mm × 1.6mm), glass epoxy, both sides
Recommended Operating Range at Ta = 25°C
Parameter
Power supply voltage
Input “H” level voltage
Input “L” level voltage
Symbol
Conditions
Ratings
Unit
V
V
V
4.0 to 16
V
V
V
CC
H
+1.8 to +5.5
-0.3 to +0.7
IN
L
IN
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be
intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace
instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety
equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case
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Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate
the performance, characteristics, and functions of the described products in the independent state, and are not
guarantees of the performance, characteristics, and functions of the described products as mounted in the
customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer
's products or
equipment.
70710 SY 20100625-S00003 No.A1802-1/6
LV8548M
Electrical Characteristics at Ta = 25°C, V
= 12V
CC
Ratings
typ
Parameter
Symbol
0
Conditions
Unit
min
max
Power supply voltage
I
I
I
Standby mode
1
μA
CC
CC
IN
IN1=IN2=IN3=IN4=”LOW”
1
It is "High" from IN1 as for either of IN4.
Load opening
1.7
2.3
mA
Input current
V
=5V
IN
35
50
65
μA
°C
Thermal shutdown operating
temperature
Ttsd
Design certification
150
180
210
Width of temperature hysteria
ΔTtsd
Design certification
40
°C
Low voltage protection function
operation voltage
VthV
3.3
3.5
3.65
V
CC
Release voltage
Vthret
3.55
0.7
3.8
1
3.95
1.25
V
Output ON resistance
(Upper and lower total)
Output leak current
R
I
=1.0A
OUT
Ω
ON
I
leak
V
=16V
O
10
μA
O
Diode forward voltage
VD
ID=1.0A
1.0
1.2
V
Package Dimensions
unit : mm (typ)
3086B
Pd max - Ta
1.5
5.0
10
6
1.05
1.0
5
1
0.15
0.55
0.5
(0.5)
0.35
1.0
0
-20
0
20
40
60
80
100
SANYO : MFP10S(225mil)
Ambient temperature, Ta --
C
Pin Assignment
V
1
2
3
4
5
10 OUT1
9 OUT2
CC
IN1
IN2
IN3
IN4
OUT3
OUT4
GND
8
7
6
No.A1802-2/6
LV8548M
Block Diagram
1. At two DC motor drive
V
CC
H-side
PRE
LVS
OUT1
OUT2
IN1
IN2
M
L-side
PRE
INPUT
LOGIC
IN3
IN4
V
CC
H-side
PRE
OUT3
OUT4
M
L-side
PRE
VREF
TSD
GND
2. At one stepping motor drive
V
CC
H-side
PRE
LVS
OUT1
OUT2
IN1
IN2
L-side
PRE
INPUT
LOGIC
IN3
IN4
V
CC
H-side
PRE
OUT3
OUT4
M
L-side
PRE
VREF
TSD
GND
No.A1802-3/6
LV8548M
Pin function
Pin No.
1
Pin name
Pin function
Equivalent Circuit
V
Power-supply voltage pin.
voltage is impressed. The permissible operation voltage is from
CC
V
CC
4.0 to 16.0(V). The capacitor is connected for stabilization for GND pin
(6pin).
2
IN1
Motor drive control input pin.
Driving control input pin of OUT1 (10pin) and OUT2 (9pin). It combines
with IN2 pin (3pin) and it fights desperately. The digital input it, range of
the "L" level input is 0 to 0.7(V), range of the "H" level input is from 1.8 to
5.5(V). PWM can be input. Pull-down resistance 100(kΩ) is built into in
the pin. It becomes a standby mode because all IN1, IN2, IN3, and IN4
pins are made "L", and the circuit current can be adjusted to 0.
Motor drive control input pin.
3
4
5
IN2
IN3
IN4
Driving control input pin of OUT1 (10pin) and OUT2 (9pin). It combines
with IN1 pin (2pin) and it uses it. PWM can be input. With built-in
pull-down resistance.
Motor drive control input pin.
Driving control input pin of OUT3 (8pin) and OUT4 (7pin). It combines
with IN4 pin (5pin) and it uses it. PWM can be input. With built-in
pull-down resistance.
Motor drive control input pin.
Driving control input pin of OUT3 (8pin) and OUT4 (7pin). It combines
with IN3 pin (4pin) and it uses it. PWM can be input. With built-in
pull-down resistance.
6
7
GND
Ground pin.
OUT4
Driving output pin.
The motor coil is connected between terminal OUT3 (8pin).
V
CC
8
9
OUT3
OUT2
OUT1
Driving output pin.
The motor coil is connected between terminal OUT4 (7pin).
OUT1
(OUT3)
OUT2
(OUT4)
Driving output pin.
The motor coil is connected between terminal OUT1 (10pin).
10
Driving output pin.
The motor coil is connected between terminal OUT2 (9pin).
Operation explanation
1. DCM output control logic
Input
Output
OUT2
Remarks
Stand-by
IN1
L
IN2
L
IN3
L
IN4
L
OUT1
OFF
OFF
H
OUT3
OFF
OUT4
OFF
OFF
OFF
L
L
L
Stand-by
H
L
L
Forward
Reverse
Brake
1CH
2CH
H
H
L
H
H
L
L
L
H
L
L
L
OFF
H
OFF
L
Stand-by
Forward
Reverse
Brake
H
H
L
H
H
L
L
No.A1802-4/6
LV8548M
2. About the switch time from the stand-by state to the state of operation
When IN1, IN2, IN3, IN4 are "L", this IC has completely stopped operating. After the time of reset of about 4μs of an
internal setting, it shifts to a prescribed output status corresponding to the state of the input when the signal enters the
input terminal.
Reset of about 4μs doesn't hang even if the motor is driven from the stand-by state when either CH drives and the
output becomes an output status corresponding to the state of the input. As for full power TR between the reset time,
turning off is maintained.
2ch input ON
1ch input ON
Input OFF
2ch input ON
IN1
OUT1
IN3
1ch side forward
(Reset time)
OUT3
2ch side forward
Stand-by state
Stand-by state
(Reset time)
There is no reset time
when another CH drives.
3. Example of current wave type in each excitation mode when stepping motor parallel input is controlled.
• 2 phase excitation
• 1-2 phase excitation
IN1
IN2
IN3
IN1
IN2
IN3
IN4
(%)
IN4
(%)
100
100
0
0
I1
I1
-100
100
-100
100
0
0
I2
I2
-100
-100
Application Circuit Example
1. Example of applied circuit when two DC motor driving
2. Example of applied circuit when one stepping motor driving
M
M
M
LV8548M
LV8548M
+
+
C1
C1
Logic input
Logic input
No.A1802-5/6
LV8548M
3. Example of applied circuit when connecting it in parallel
The use likened to H bridge 1ch is shown possible in the figure below by connecting IN1 with IN3, IN2 with IN4,
OUT1 with OUT3, OUT2, and OUT4. (I max=2.0A, Upper and lower total R =0.5Ω)
O
ON
M
LV8548M
+
C1
Logic input
* Bypass capacitor (C1) connected between V -GND of all examples of applied circuit recommends the electric field
CC
capacitor of 0.1μA to 10μA.
Confirm there is no problem in operation in the state of the motor load including the temperature property about the
value of the capacitor.
Mount the position where the capacitor is mounted on nearest IC.
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products described or contained herein.
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This catalog provides information as of July, 2010. Specifications and information herein are subject
to change without notice.
PS No.A1802-6/6
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