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LB1947 Datasheet(PDF) 5 Page - Sanyo Semicon Device

Part # LB1947
Description  PWM Current Control Type Bidirectional Motor Driver
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Manufacturer  SANYO [Sanyo Semicon Device]
Direct Link  https://www.sanyo-av.com/us/
Logo SANYO - Sanyo Semicon Device

LB1947 Datasheet(HTML) 5 Page - Sanyo Semicon Device

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LB1947
No.6192-5/9
Pin Function
Pin No.
Pin name
Function
Equivalent circuit
1
3
OUTA
OUTA
Output pin.
2
E
Sense voltage control pin.
4
VI
High: sense voltage is 2/5 of VREF
Low: sense voltage is 1/5 of VREF
5
ST
High: circuit operation ON
Low: standby mode
8
IN1
High: rotation mode
Low: brake mode
9
IN2
High: reverse mode
Low: forward mode
4
50k
40k
VCC
100
µA
VI
6
VBB
Motor power supply voltage.
7
VCC
Logic power supply voltage.
10
VREF
Output current setting reference pin.
Setting range: 0 to (VCC−2V)
10
40k
VCC
5
µA
VREF
3s
1s
11
CR
Oscillator with self-excitation.
12
MD
Current attenuation switching pin.
Low : FAST DECAY
High: SLOW DECAY
M : MIX DECAY
M is set by external power supply voltage.
Range : 1.1 to 4.0V
13
GND
Ground pin


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