SILAN SC2128A-C31B, SC2128A-C31S, SC2128A-C32B, SC2128A-C32S, SC2128A-C33B Datasheet

Silan	SC2128A
Semiconductors

REMOTE FAN CONTROL IC

DESCRIPTION

The SC2128A is a high performance electronic fan controller LSI, Speed control, off-timer, rhythm wind, sleep mode, head swing and/or light control are all built into a single chip. Indicator LED output, buzzer output, key control input, as well as remote control decoding circuitry are all provided to build a full function electronic fan with remote control capability having the highest performance with the least external components. Pin assignment and application circuit are optimized for easy PCB layout and cost saving for electronic fan application.

FEATURES

DIP-16

*High performance CMOS Technology

*Low power consumption

*Optional independent light control

*90 seconds cycle/6 seconds per step(off step 3 seconds) rhythm wind pattern

*Built-in remote control decoding circuitry with mask option custom code

*DIP or SO package(22 pin SO not available)

*Up to 3 dependent/independent swing-head/light output

*Available in 16,18,20,22,24 pin package for none, one set or two sets of swing head and/or light control

*Four operation modes: ordinary, rhythm, ordinary sleep and rhythm sleep.

*Memory start-up mode

*2-3 seconds middle wind start-up(mask option)

APPLICATIONS

*Optimized for fan application

*Suitable for heater fan, cooling fan, and other home appliances with remote control, timer and/or output level control

HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD

Rev: 1.0

2000.12.31

1

Silan	SC2128A
Semiconductors

PIN CONFIGURATION

		18 pin
pin
20

16 pin

	SW2	SO2
	REMOTE	LO
	VSS	MI
	OSCI	ST
	OSCO	LED1
	VDD	LED2
	OFF/MEMS/	SC2128A
		LED3
	BUZZ
	SPEED	COM
	MODE	TIMER
	SW1	SO1
	LIGHT	LIT
	NC	NC

20 pin		22 pin DIP		24 pin SO

ORDERING INFORMATION

SC2128A- X X X X

S = Swing Head Output(s) Controlled by a Single Key (Mask

Option)

D = Two Swing Head Outputs Controlled by Double Keys (D can be omitted)

0 = No Swing head Output

1 = 1 Swing head Output

2 = 2 Swing head Outputs

3 = 1 Swing head & Light Control Outputs

4 = 2 Swing head & Light Control Outputs

2 = 1/2/4 Hour, Non-Accumulated Timer

3 = 1/2/4 Hour, Accumulated Timer

4 = 0.5/1/2/4 Hour, Non-Accumulated

Timer

5 = 0.5/1/2/4 Hour, Accumulated Timer

8= 1/2/4/8 Hour, Non-Accumulated Timer

9= 1/2/4/8 Hour, Accumulated Timer

D = Non-Memory Start-up & Non-Middle Wind Start-up (Mask

Option)

C = Non-Memory Start-up & Middle Wind Start-up

L = Memory Start-up & Non-Middle Wind Start-up (Mask Option)

M = Memory Start-up & Middle Wind Start-up

Note: SC2128A Standard ICs: SC2128A-C31, SC2128A-C51, SC2128A-C80, SC2128A-C81, SC2128A-C82, SC2128A-C83, SC2128A-C92. Other options are available upon request and require a minimum order Quantity. Please contact Silan or your local agent for details.

HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD

Rev: 1.0

2000.12.31

2

Silan	SC2128A
Semiconductors

BLOCK DIAGRAM

		VDD	VSS
OSCI	OSC	TIMING		LO
OSCO			SPEED
				MI
			CONTROL
				ST
REMOTE	FILTER	DECODER
				COM
SPEED			LED	LED1
			SCAN	LED2
TIMER
MODE		TIMER		LED3
SW1	KEY
SW2	SENSE			SO1
OFF/MEMS/			SWING/	SO2
		MEMORY	LIGHT
BUZZ
LIGHT				LIT

HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD

Rev: 1.0

2000.12.31

3

Silan					SC2128A
Semiconductors
ABSOLUTE MAXIMUM RATINGS
Characteristic	Symbol	Test Conditions			Value			Unit
Supply Voltage	VDD	--		0 ~ 6.0				V
Input/Output Voltage	VI,VO	VDD - VSS	-0.3V ~ VDD+0.3V					V
Power Dissipation	PD	VDD – VSS = 5.0		500				mW
Operating Temperature	Topr	--		-20 ~ +70				°C
Storage Temperature	Tstg	--		-40 ~ +125				°C
ELECTRICAL CHARACTERISTICS
Parameter	Symbol	Test conditions	Min		Typ		Max	Unit
Supply Voltage	VDD	--	4.0		5.0		6.0	V
		VDD=5.0V, Oscillator stops.
Stand-by Current	Iq	All output floating,	--		134		200	A
		All input fixed to VDD.
Input High Level Voltage	VIH	--	VDD-1.5		--		--	V
Input Low Level Voltage	VIL	--	--		--		1.5	V
Drive Current (COM)	IOH	VDD=5.0V, Vo=3.5V	15		21.5		--	mA
Sink Current (COM)	IOL	VDD=5.0V, Vo=1.5V	-12		-16.5		--	mA
Drive Current (LED1, LED2,	IOH	VDD=5.0V, Vo=3.5V	5		6.5		--	mA
LED3)
Sink Current (LED1, LED2, LED3)	IOL	VDD=5.0V, Vo=1.5V	-4		-5.7		--	mA
Drive Current (OFF/BUZZ)	IOH	VDD=5.0V, Vo=2.5V	1.5		3.0		--	mA
Sink Current (OFF/BUZZ)	IOL	VDD=5.0V, Vo=2.5V	-2		-3.7		--	mA
Sink Current	IOL	VDD=5.0V, Vo=2.5V	-6.5		-16		--	mA
(LO,MI,ST,SO1, SO2,LIT)
Oscillation frequency	fOSC	--	--		32768		--	Hz
Key Press Duration	Tkey	--	80		--		--	ms
Remote Input Bit Duration	Tbit	--	2.0		2.5		3.0	ms

HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD

Rev: 1.0

2000.12.31

4

		Silan									SC2128A
		Semiconductors
	PIN DESCRIPTION
						Pin No.
	Symbol		16		18	20	20	22	24	I/O	Function
						PIN	PIN	PIN	PIN
			PIN		PIN
						Note1	Note2	Note3	Note4
	VDD		5		5	5	6	6	6	--	Positive power supply
	VSS		2		2	2	3	3	3	--	Negative power supply
	COM		10		12	14	13	15	17	O	Indicator LED common output
	LED1		13		15	17	16	18	20	O
	LED2		12		14	16	15	17	19	O	Indicator LED output pins
	LED3		11		13	15	14	16	18	O
	SPEED		7		7	7	8	8	8	I	SPEED key control input
	MODE		8		8	8	9	9	9	I	MODE key control input
	TIMER		9		11	13	12	14	16	I	TIMER key control input
	SW1		--		9	9	10	10	10	I	Swing head 1 control key input
	SW2		--		--	--	1	1	1	I	Swing head 2 control key input
	OFF/MEMS/		6		6	6	7	7	7	I/O	OFF control key input, shared with
	BUZZ										buzzer output
	LIGHT		--		--	10	--	11	11	I	Light control key input
	SO1		--		10	12	11	13	15	O	Swing head 1 output
	SO2		--		--	--	20	22	24	O	Swing head 2 output
	LIT		--		--	11	--	12	14	O	Light output
	LO		16		18	20	19	21	23	O
	MI		15		17	19	18	20	22	O	Speed outputs
	ST		14		16	18	17	19	21	O
	REMOTE		1		1	1	2	2	2	I	Remote control sensor input
	OSCI		3		3	3	4	4	4	I	Oscillator input pin
	OSCO		4		4	4	5	5	5	O	Oscillator output pin
	NC		--		--	--	--	--	12	I	No connection
	NC		--		--	--	--	--	13	I	No connection

Note1 : One swing head control plus light control type

Note2 : Two Sets of Swing Head Control Type

Note3 : DIP Package Only

Note4 : SO Package Only

HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD

Rev: 1.0

2000.12.31

5