LB11826_08 Datasheet, PDF (6/11 Pages) Sanyo Semicon Device – For OA Products Three-Phase Brushless Motor Driver

LB11826
Pin Functions
Pin No. Pin name
Pin function
28
OUT1 Motor drive output pin.
1
OUT2 Connect the Schottky diode between the output -
2
OUT2
VCC.
3
GND2 Output GND pin.
5
VM
Power and output current detection pins of the
output. Connect a low resistance (Rf) between this
pin and VCC.
The output current is limited to the current value set
with IOUT = VRF/Rf.
VCC
4
VCC
Power pin (Other than the output).
6
VREG Stabilized power supply output pin (5V output).
Connect a capacitor (about 0.1μF) between this pin
and GND for stabilization.
Equivalent circuit
300Ω
VM
5
1 2 28
3
VCC
6
7
PWM
Pin to set the PWM oscillation frequency.
VREG
Connect a capacitor between this pin and GND.
This can be set to about 18kHz with C = 3900pF.
8
CSD
Pin to set the operation time of motor lock protection
VREG
circuit.
Connection of a capacitor (about 10μF) between
CSD and GND can set the protection operation time
of about 3.3seconds.
200Ω
7
2kΩ
300Ω
8
1kΩ
Continued on next page.
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