LB11822 Datasheet, PDF (6/11 Pages) Sanyo Semicon Device – Three-Phase Brushless Motor Driver for OA Products

LB11822
Pin Function
Pin No.
Pin
Function
28
OUT1
Motor drive output pin
1
OUT2
Connect the Schottky diode between the output – V_CC.
2
OUT3
VCC
3
GND2 Output GND pin
Power and output current detection pins of the output. Connect a
5
VM
low resistance (Rf) between this pin and V_CC.
The output current is limited to the current value set with I_OUT =
VRF/Rf.
4
V_CC
Power pin (Other than the output)
Equivalent circuit
300 Ω
VM ₅
1 2 28
3
VCC
Stabilized power supply output pin (5 V output)
6
6
VREG _{Connect a capacitor (about 0.1 µF) between this pin and GND for}
stabilization
Pin to set the PWM oscillation frequency.
7
PWM Connect a capacitor between this pin and GND.
This can be set to about 18 kHz with C =3900 pF.
VREG
VREG
Pin to set the operation time of motor lock protection circuit.
8
CSD
Connection of a capacitor (about 10 µF) between CSD and GND
can set the protection operation time of about 3.3seconds.
200 Ω
7
300 Ω
8
Continued on next page.
No. 7105-6/11