LB11681H Datasheet, PDF (6/11 Pages) Sanyo Semicon Device – Monolithic Digital IC PWM Three-phase Brushless Motor Driver

LB11681H
Pin Functions
Pin No.
Symbol
Pin Description
1
HB-
Hall bias minus-side bias pin.
Minus-side bias pin of Hall element is connected
VR
with this pin.
In addition, connect a bias resistance between
Hall element plus-side bias and power supply.
Equivalent Circuit
1
3
VM
Power supply pin.
Connect a capacitor between this pin and GND.
4
RF
Pin to detect the output current.
VM
The drive current is detected by connecting a
low-resistance between this pin and GND.
7
UOUT
Output pin.
8
VOUT
The motor coils are connected with these pins.
9
WOUT
5
PGND
Output system ground
10
PWM
PWM oscillation pin.
Connect a capacitor between this pin and GND.
35kΩ
789
4
VR
1kΩ
10
3kΩ
11
IB
Output drive current adjustment pin.
Connect a resistor between this pin and GND.
VR
11
Continued on next page.
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