LB11693JH Datasheet, PDF (5/12 Pages) Sanyo Semicon Device – Monolithic Digital IC 24V Fan Motor Driver IC

Block Diagram
EI-
TOC
-
EI+
CTL
+
CTL AMP
LB11693JH
FG
RD
FG
CSD
RD FC
FG
CSD
CIRCUIT CIRCUIT
RD
LVSD
TSD
PWM
PWM
OSC
PWMIN
PWMIN
COMP
GND1
BGP VREF
FILTER
5VREG S/S F/R
CURR
LIM
CONTROL
CIRCUIT
HALL AMP
& MATRIX
DRIVER
VREG
S/S F/R FGFIL _VREG ^{IN1 IN2 IN3}
GND2
VCC
LVS
VCC
VD _Rd
VM _Rf
OUT1
OUT2
OUT3
Pin Functions
Pin
Symbol
No.
Pin Description
34
OUT1
Motor drive output
36
OUT2
2
OUT3
4
GND2 Motor drive output system ground
7
VD
Low side output transistor drive current supply
9
VM
Motor drive output power supply and output current
detection.
Connect a resistor (Rf) between this pin and VCC.
The output current is limited to a value determined
by the equation IOUT = VRF/Rf.
8
VCC
Power supply
(Systems other than the motor drive output)
10
VREG 5V regulator output
Connect a capacitor (about 0.1µF) between this pin and
ground for stabilization.
VCC
Equivalent Circuit
300Ω
VD
7
VM
9
2 34 36
4
VCC
10
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