LB1662D Datasheet, PDF (3/6 Pages) Sanyo Semicon Device – DC Fan Motor Drivers

Pin Assignments
LB1662D, 1662M
Glass epoxy resin (LB1662M)
(Independent IC)
(Independent IC)
Top view
Ambient temperature, Ta – °C
Pin Functions
Pin No.
1
2
3
4
6
5
8
7
9
10
Pin name
IN−
IN+
C
OUT1
OUT2
GND
B1
B2
RD
V_IN
Function
Input pins for hall element outputs.
Common-mode input voltage range is 0 to V_IN−1.5 V, offset voltage is ±7 mV
Capacitor pin (1 to 10 µF) that forms automatic return circuit.
When rotation is stopped due to overload, the pin voltage increases and output stops.
After proper load adjustment, the output returns from ‘‘stop’’ mode to ‘‘drive’’ mode automatically.
The lock detect time can be set by changing the capacitor constant.
Output pins. The output transistor is Darlington connected.
Connect either an external capacitor or an external Zener diode for output transistor protection.
Ground pin.
Base pins for Darlington connected output transistors.
If radio noise is a problem, add a capacitor (0.01 to 0.1 µF).
Open collector output. Drive mode: ‘‘L’’, Stop mode: ‘‘H’’
Insert a limiting resistor between V_CC and V_IN and use the voltage applied between V_IN and ground in a
range from 3.8 to 6.0 V.
In this case, the current consumption I_CC at the V_IN pin is 1.4 to 3.7 mA (when V_IN = 4.3 V).
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