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Part Name
Description
LB1975(2003) View Datasheet(PDF) - SANYO -> Panasonic
Part Name
Description
Manufacturer
LB1975
(Rev.:2003)
DC Fan Motor Driver
SANYO -> Panasonic
LB1975 Datasheet PDF : 10 Pages
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5
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10
LB1975
Duty – VCTL characteristics
100
80
60
40
20
0
VCTL1
VCTL2
Control voltage, VCTL — V
Block Diagram and Peripheral Circuit
VREG
S/S F/R
FG1 FG2
VCC
VCC
Reg
+
Hys.Amp
+
IN1
–
+
IN2
–
Logic
LVSD
TSD
+
VM
VM
OUT1
OUT2
OUT3
VCTL
+
+
IN3
–
31 k
Ω
VCTL 40 k
Ω
VCTL Amp
–
+
2.35 V
PWM
OSC
VCREF VCOUT
OSC
Current
limiter
RF
Rf
0.5 V
GND1 GND2 GND3
A11952
No. 6087-5/12
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