SM3502 Datasheet, PDF (1/12 Pages) SamHop Microelectronics Corp. – FAN CONTROLLER

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SAMHOP Microelectronics Corp.
SM3502
FAN CONTROLLER
GENERAL DESCRIPTION
FEATURES
SM3502 is a Fan Controller CMOS IC that
can be applied to a variety of consumer
products. SM3502 has three wind modes;
normal, rhythm and sleep-rhythm wind.
Four kinds of timer setting and one swing
head control or light control.
Memory function is available; the Speed,
Mode, Swing functions will operate as last
state in memory type. If the last state is
Sleep mode, press SPEED key enable fan
controller while memory functions will be
returned to the last state before Sleep Mode
operation.
* High performance CMOS technology.
* Four types of timer setting:
Ladder adder (1/2-1-2-4hrs)
Non-ladder adder (1-2-4-8hrs)
* One swing head control or light control.
* SPEED key can enable fan controller.
* 18 pin plastic DIP package.
* 455KHz oscillator.
APPLICATIONS
* Electronic Fan
* Heater Fan
* Air-Cleaner
* Dehumidifier
* Humidifier
* Kitchen Exhaust
* Dish Dryer
* Wall Fan
PIN ASSIGNMENTS
LIGHT
1
DI
2
OFF
3
TIMER
4
SPEED
5
MODE
6
COM1
7
COM2
8
COM3
9
18
LTO
17
VSS
DI
1
OFF
2
16
OSC1
TIMER
3
15
OSC2
SPEED
4
14
BUZ
MODE
5
13
VDD
COM1
6
12
LOW
COM2
7
11
MEDIUM
COM3
8
10
STRONG _SWING
9
18
VSS
17
OSC1
16
OSC2
15
BUZ
14
VDD
13
LOW
12
MEDIUM
11
STRONG
10
SHO
SM3502-A 18PIN
SM3502-B 18PIN
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