三合微科股份有限公司
SAMHOP Microelectronics Corp.
SM3501
FAN CONTROLLER
GENERAL DESCRIPTION
SM3501 is a Fan Controller CMOS IC, has three wind modes; normal, rhythm and sleep wind. Four kinds of timer setting and a toggled O/P that can be used as swing/light. Memory function is available; the Speed, Mode, Swing functions will operate as last state; if last state is Sleep mode, press SPEED or ON/OFF key enable fan controller while memory functions( Speed / Mode / Swing ) will be returned to the last state before sleep mode operation.
FEATURES
* High performance CMOS technology * 455KHz or RC type can be selected. * Two to three wind modes can be selected. Normal, Rhythm and Sleep wind mode. * Three-wind grade control in each wind mode: Low, Medium and Strong wind. * Four types of timer setting by PIN option: ladder adder (1/2 - 1 - 2 - 4 - 8HRS / 1 - 2 - 4HRS) non-ladder adder (1 - 2 - 4 - 8HRS / 1 - 2 - 4HRS) * SPEED or ON/OFF key can enable fan controller by PIN option
APPLICATIONS
* Electronic Fan * Heater Fan
PIN ASSIGNMENT
LOW TGO BUZ OSC1 OSC2 OPTION1 VDD SPEED TGI 1 2 3 4 5 6 7 8 9 SM3501 18 17 16 15 14 13 12 11 10 MID STR OPTION2 VSS COM2 COM1 MODE TIMER ON-OFF/OFF
Page 1
V.2.0 Mar 8,2002
三合微科股份有限公司
SAMHOP Microelectronics Corp.
SM3501
FAN CONTROLLER
PIN FUNCTION
No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Pin Name LOW TGO BUZ OSC1 OSC2 OPTION1 VDD SPEED TGI OFF/ON-OFF TIMER MODE COM1 COM2 VSS OPTION2 STR MID I/O O O O I O I POWER I/O I/O I/O I/O I/O O O POWER I O O Function Wind speed control output Toggle output Trigger output to drive piezo Crystal input Crystal output Fan start-up option-float: Speed, VDD:ON/OFF Positive power Wind grade selection input and LED output Toggle output control input and LED output
ON-OFF or OFF function control input and LED output Timer setting input and LED output
Wind mode selection input and LED output LED scanning common pin LED scanning common pin Negative power supply Timer mode option-float: nonadder, VSS: adder Wind speed control output Wind speed control output
Page 2
V.2.0 Mar 8,2002
三合微科股份有限公司
SAMHOP Microelectronics Corp.
SM3501
FAN CONTROLLER
PANEL DISPLAY
4HR (8HR) S M L 2HR (4HR) 1HR (2HR) 1/2HR (1HR) SLP RHY NOR TGO
OFF (ON-OFF)
ON/SPPED (SPEED)
TIMER
MODE
TGI
* NOTE: "
" Function can be chosen.
BLOCK DIAGRAM
VDD VSS OPTION1 OPTION2
BUZ
Buzzer
Fan Function Control SPEED/ MODE/ TIMER/ SWING/ MENORT
OSC1 Oscillator OSC2
OFF SPEED TIMER MODE TGI COM1 COM2 TGO System Timing Generator
Key Input
Timer
STRONG MEDIUM
LED Output
Scan_Signal
Output Drive LOW
Page 3
V.2.0 Mar 8,2002
三合微科股份有限公司
SAMHOP Microelectronics Corp.
SM3501
FAN CONTROLLER
FUNCTION DESCRIPTION
SM3501 has five control signal operations: * Start-up by SPEED key a. function turn off ( OFF key ) b. wind mode select ( MODE key ) c. start-up function and wind speed select ( ON / SPEED key ) d. timer setting ( TIMER key ) e. swing head or light ( TGI key ) * Start-up by ON / OFF key a. function control ( ON / OFF key ) b. wind mode select ( MODE key ) c. wind spped select ( SPEED key ) d. timer setting ( TIMER key ) e. swing head or light ( TGI key ) Only SPEED or ON / OFF key can enable the fan controller ; wind mode, timer and swing head inputs can not be accepted when fan is not activated. The fan controller will be turned off by timer time out or OFF ( ON / OFF ) key inputs. When more than one key are pressed, controller will not accept the multi-key's control signal, if the panel keys are pressed more than six seconds, controller will generate a "Bi-Bi-Bi-Bi" warning sound. state of fan controller is as follows: * Memory function available If Fan controller is OFF on sleep mode, all memory functions will be returned to the LAST STATE BEFORE SLEEP MODE operation. a. grade as last state but with starting medium wind for three seconds b. the wind mode as last state except sleep mode c. swing function as last state d. timer setting off A. OFF KEY When fan controller is on, press the OFF key on panel, fan functions will be turned off. * PIN 6 OPTION1: ON / OFF KEY When fan controller functions are on, press ON / OFF key on panel, fun function will be turned off; if functions are off, press the key to turn on fan functions.
Page 4
V.2.0 Mar 8,2002
三合微科股份有限公司
SAMHOP Microelectronics Corp.
SM3501
FAN CONTROLLER
B. SPEED KEY When fan controller is off, press SPEED key on panel, fan is turned on, initial state is LOW wind; when memory function is available, the wind grade will operate as last state. Both conditions there are three seconds startng wind. Press the SPEED key again, the wind will be changed as follows:
OFF
LOW
MEDIUM
STRONG
:SPEED key used :Pluse is put into OFF pin * PIN 6 OPTION1: SPEED KEY ONLY If fan controller is off, SPEED key cannot be used, must press ON / OFF key to turn on the fan controller. When fan controller is on, press SPEED key on panel the wind grade changes as follows:
OFF
LOW
MEDIUM
STRONG
:SPEED key used :Pluse is put into ON / OFF pin :SPEED or ON / OFF key used C. MODE KEY SM3501 has three types of wind mode key setting. Memory function is available except on sleep mode.
OFF
NOR
RHY
SLP
:Press MODE key : normal setting :Pluse is put into OFF or ON / OFF pin :SPEED or ON / OFF key used
Page 5
V.2.0 Mar 8,2002
三合微科股份有限公司
SAMHOP Microelectronics Corp.
SM3501
FAN CONTROLLER
* PIN 16 OPTION2: Two kinds of wind mode operation, these can be chosen by mode key setting.
OFF
NOR
RHY
:Press MODE key: normal setting :Pluse is put into OFF or ON / OFF pin :SPEED or ON/OFF key used
D. TGI KEY The swing key will not activate when fan controller is off. Memory function is available, the swing output will operate as last state when press SPEED or ON / OFF key. OF F TGO enable
: The TGI key press
E. TIMER KEY SETTING SM3501 has many types of timer setting, mode A is ladder-adder and mode B is non-ladder adder for three or four steps. Timer key will not activate when fan controller is off. These types of timer may be chosen by MASK or BONDING option. F. BUZZER Any key pressed on panel or fan controller receives a control signal form remote control handset, will generate a 4KHz 50% duty cycle pulse train on buzzer output pin.
Page 6
V.2.0 Mar 8,2002
三合微科股份有限公司
SAMHOP Microelectronics Corp.
SM3501
FAN CONTROLLER
G. RHYTHM WIND FUNCTION
S M L
0
6
12
18
24
30
36
42
STRONG RHYTHM WIND PATTERN
48 (SEC)
S M L
0
6
12
18
24
30
36
42
MEDIUM RHYTHM WIND PATTERN
48 (SEC)
S M L
0
6
12
18
24
30
36
42
LOW RHYTHM WIND PATTERN
48 (SEC)
Page 7
V.2.0 Mar 8,2002
三合微科股份有限公司
SAMHOP Microelectronics Corp.
SM3501
FAN CONTROLLER
H. SLEEP WIND FUNCTION
In sleep mode, wind grade is changed by timing automatically. S M Strong rhythm wind L Medium rhythm wind Low rhythm wind 0 0.5HR 1HR TIME
STRONG SLEEP WIND PATTERN
S M L Medium rhythm wind Low rhythm wind 0 0.5HR 1HR TIME
MEDIUM SLEEP WIND PATTERN
S M L Low rhythm wind 0 0.5HR 1HR TIME
LOW SLEEP WIND PATTERN
* The wind grade goes down automatically one step every 0.5 hour, until low wind level is reached.
Page 8
V.2.0 Mar 8,2002
三合微科股份有限公司
SAMHOP Microelectronics Corp.
SM3501
FAN CONTROLLER
ABSOLUTE MAXIMUM RATINGS
Parameter Supply Voltage Input Voltage Output voltage Maximum power consumption Operating temperaturer Storage temperature Symbol VDD - Vss VI - Vss VO - Vss Pa Topr Tstg VDD - Vss = 5 V Conditions Ratings -0.3 ~ 6
Vss -0.3 ~ VDD +0.3 Vss -0.3 ~ VDD +0.3
Unit V V V mW ℃ ℃
500 -10 ~ 70
-40 ~ 125
DC ELECTRICAL CHARACTERISTICCS
Parameter Supply voltage Symbol VDD - Vss OSC stop all output pins open all input fixed to VDD VOH=+4.3V 15 Conditions Limit Min. Typ. Max. 4 5 6 Unit V
Stand-by current Source current (OFF, MODE, SPEED, SWING, TIMER) Triac sink current (S, M, L, SWING) Sink current (COM1 ~ COM2) Sink current (BUZ)
ISB
500
μA
IOH
mA
IOL IOL IOL
VOL=+0.7V VOL=+0.7V VOL=+0.7V
25 60 10
mA mA mA
Page 9
V.2.0 Mar 8,2002
三合微科股份有限公司
SAMHOP Microelectronics Corp.
SM3501
FAN CONTROLLER
SM3501 PIN OPTION
PIN 6 FLOATING TO VDD TO VSS Start up by SPEED key Start up by ON / OFF key 1/2-1-2 or 1/2-1-2-4HR, Accumulation PIN 16 1-2-4 or 1-2-4-8HR, Non-accumulation
SM3501 POWER SUPPLY APPLICATION CIRCUIT
100K/1W
47 Ω / 0.25W
1A
47Ω /1W
3.3uF/250V
1N4004
47 Ω / 0.25W
VSS/-5.1V
110V AC INPUT
1N4004
220uF 16V
5.1V 0.5W
470uF 16V GND
180 Ω / 1W 1A 180 Ω / 1W
200K / 1W
47 Ω / 0.25W 47 Ω / 0.25W
220V AC INPUT
1.2uF / 400V
1N4004
VSS/-5.1V
1N4004
220uF 16V
5.1V 0.5W
470uF 16V GND
Page 10
V.2.0 Mar 8,2002
三合微科股份有限公司
SAMHOP Microelectronics Corp.
SM3501
FAN CONTROLLER
SM3501BX APPLICATION CIRCUIT
AC INPUT
Loading
M1
L
M
S
SM3501BX
470Ω 560Ω 470Ω 455KHz -5V 470 Ω 470 Ω
LOW TGO BUZ OSC1 OSC2
MID STR OPTION2 VSS COM2 COM1
-5V
-5V 100 Ω 100 Ω 2HR 1/2HR SLP 1HR
MODE TIMER SPEED
20p TO VSS
20p
OPTION1 VDD SPEED TGI
MODE
10KΩ 10KΩ 10KΩ
STR
TIMER ON-OFF/ OFF
4HR
MID LOW
RHY NOR
LIGHT SWING SPEED
10KΩ 10KΩ
Page 11
V.2.0 Mar 8,2002
三合微科股份有限公司
SAMHOP Microelectronics Corp.
SM3501
FAN CONTROLLER
SM3501AX APPLICATION CIRCUIT
AC INPUT
Loading
M1
L
M
S
SM3501AX
470Ω 560Ω -5V 180KΩ
OSC2 OPTION1 VDD SPEED TGI COM2 COM1
LOW TGO BUZ OSC1
MID STR OPTION2 VSS
470 Ω 470 Ω
-5V
-5V 100 Ω 100 Ω 2HR 1/2HR SLP 1HR
MODE TIMER SPEED
MODE
10KΩ 10KΩ 10KΩ
STR
TIMER ON-OFF/ OFF
4HR
MID LOW 47u / 16V
RHY NOR
LIGHT SWING SPEED
10KΩ 10KΩ
Page 12
V.2.0 Mar 8,2002