LB1862(1999) Просмотр технического описания (PDF) - SANYO -> Panasonic
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LB1862 Datasheet PDF : 7 Pages
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Block Diagram
CT
0.47 to 1µF
LB1862
Charge/discharge
circuit
VCC
IN+
HALL
IN–
HB
Discharge
pulse
Hysteresis amplifier
Control
circuit
Delay circuit
Delay circuit
Thermal protection
circuit
START/STOP
ST
GND
Sample Application Circuit
C2
D1
H
C1=0.47 to 1µF
VCC
IN–
RD
IN+
OUT1
HB
OUT2
ST
CT
GND
RD
OUT2
M
OUT1
A12478
A12477
(1) D1 is used to prevent IC destruction caused by reverse-connection. It can be omitted if no problems are expected.
(2) C2 would not be required for the internal fan PCB but required for the power supply line in order to reduce the
power line inpedance and pass the regenerative current because a motor is basically an inductive load and it has a
possibility of large current when the power is first applied or in other cases.
(3) When CT is not used, it should be connected to ground.
(4) When RD, ST, and HB are not used, they should be left open or connected to ground.
No. 6208-4/7
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