LB11961-TLM-H Datasheet, PDF (4/7 Pages) ON Semiconductor – Single-Phase Full-Wave Fan Motor Driver

Pin Assignment
LB11961
F-GND
(P-GND)
F-GND
(P-GND)
OUT2 ₁
VCC ₂
RMI 3
VTH 4
CPWM 5
LB11961
14 OUT1
13 S-GND
12 CT
11 6VREG
10 IN-
FG ₆
9 HB
RD 7
8 IN+
Top view
F-GND (P-GND) : The motor system ground and the heat sink. Since the heat generated Since the heat generated by the chip is
dissipated through F-GND, the thermal resistance is lowered by increasing the area of the copper foil and solder
surface in the printed circuit pattern.
S-GND :
Control system ground
Block Diagram
FG
RD
VCC
Thermal
protection circuit
6VREG
Constant
voltage
1.3V
HB
Control
circuit
Hall
IN+
IN−
Amplifier with
hysteresis _{Charge/discharge}
circuit
S-GND
CT
VTH
Delay circuit
Delay circuit
Oscillator
circuit
CPWM
P-GND
OUT2
M
OUT1
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