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LB1975 Datasheet(PDF) 5 Page - Sanyo Semicon Device

Part # LB1975
Description  DC Fan Motor Driver
PDF  12 Pages
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Manufacturer  SANYO [Sanyo Semicon Device]
Direct Link  https://www.sanyo-av.com/us/
Logo SANYO - Sanyo Semicon Device

LB1975 Datasheet(HTML) 5 Page - Sanyo Semicon Device

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Block Diagram and Peripheral Circuit
No. 6087-5/12
LB1975
0
20
40
60
80
100
Duty – VCTL characteristics
Control voltage, VCTL — V
VCTL1
VCTL2
+
–
31 k
Ω
2.35 V
40 k
Ω
VCTL
VCC
Hys.Amp
VCC
VREG
Reg
LVSD
TSD
S/S
F/R
FG1 FG2
VM
OUT1
OUT2
OUT3
RF
VM
IN3
IN2
IN1
VCREF
VCTL
VCOUT
OSC
GND1
GND2
GND3
0.5 V
+
–
+
+
–
VCTL Amp
Rf
Current
limiter
Logic
PWM
OSC
+
+
–
A11952
+



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