lb11681h Sanyo Semiconductor Corporation, lb11681h Datasheet - Page 6

• Manufacturer Part Number: lb11681h
• Description: Pwm Three-phase Brushless Motor Driver
• Manufacturer: Sanyo Semiconductor Corporation

Pin Functions
Pin No.
10
11
1
3
4
7
8
9
5
Symbol
WOUT
UOUT
PGND
VOUT
PWM
HB-
VM
RF
IB
Hall bias minus-side bias pin.
Minus-side bias pin of Hall element is connected
with this pin.
In addition, connect a bias resistance between
Hall element plus-side bias and power supply.
Power supply pin.
Connect a capacitor between this pin and GND.
Pin to detect the output current.
The drive current is detected by connecting a
low-resistance between this pin and GND.
Output pin.
The motor coils are connected with these pins.
Output system ground
PWM oscillation pin.
Connect a capacitor between this pin and GND.
Output drive current adjustment pin.
Connect a resistor between this pin and GND.
Pin Description
LB11681H
10
VR
VR
VM
35kΩ
3kΩ
Equivalent Circuit
1kΩ
11
Continued on next page.
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VR
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