SM3502-A1

三合微科股份有限公司 SAMHOP Microelectronics Corp. SM3502 FAN CONTROLLER GENERAL DESCRIPTION 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. FEATURES * 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 DI OFF TIMER SPEED MODE COM1 COM2 COM3 1 2 3 4 5 6 7 8 9 18 17 16 15 14 13 12 11 10 LTO VSS OSC1 OSC2 BUZ VDD LOW MEDIUM STRONG DI OFF TIMER SPEED MODE COM1 COM2 COM3 SWING 1 2 3 4 5 6 7 8 9 18 17 16 15 14 13 12 11 10 VSS OSC1 OSC2 BUZ VDD LOW MEDIUM STRONG SHO SM3502-A 18PIN SM3502-B 18PIN Page 1 V.1.0 三合微科股份有限公司 SAMHOP Microelectronics Corp. SM3502 FAN CONTROLLER PANEL DISPLAY 4HR 2HR 1HR 1/2HR (8HR) (4HR) (2HR) (1HR) S M L SLP-RHY RHY NOR SHO/LTO OFF ON/SPEED TIMER MODE SW/LIGHT SM3502 BLOCK DIAGRAM VDD VSS DI BUZ BUZZER REMOTE CONTROL DECODER OSC1 OSCILLATOR OSC2 OFF SPEED TIMER FAN FUNCTIONS CONTROL SPEED/MODE/TIMER/MEMORY KEY INPUT SPEED OUTPUT DRIVER ROM TIMER STRONG MODE LED OUTPUT SCAN_SIGNAL MEDIUM COM1 COM2 COM3 LOW SWING LIGHT SWING/LIGHT CONTROL SYSTEM TIMING GENERATOR ZERO_CROSS SHO LTO Page 2 V.1.0 三合微科股份有限公司 SAMHOP Microelectronics Corp. SM3502 FAN CONTROLLER PIN DESCRIPTIONS No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Pin Name LIGHT DI OFF TIMER SPEED MODE COM1 COM2 COM3 SWING SHO STRONG MEDIUM LOW VDD BUZ OSC2 OSC1 VSS LTO I/O I I I/O I/O I/O I/O O O O I O O O O POWER O O I POWER O Function Light control input Remote control input Off function control input Timer setting input Wind grade selection input Wind mode selection input LED scanning common pin / Customer code LED scanning common pin / Customer code LED scanning common pin Swing head control input / Customer code Swing head / tuner pulse output Wind speed control output Wind speed control output Wind speed control output Positive power supply Trigger output to drive piezo Crystal output Crystal input Negative power supply (Substrate) Light control output Page 3 V.1.0 三合微科股份有限公司 SAMHOP Microelectronics Corp. SM3502 FAN CONTROLLER FUNCTION DESCRIPTION SM3502 has FIVE control signal operations : * Start-up by SPEED key a. function turn off (OFF key) b. wind mode selection (MODE key) c. start-up function and wind speed selection(SPEED key) d. timer setting (TIMER key) e. swing head or light control (SW or LIGHT Key) Only SPEED key can enable the fan controller, except for the light control. Wind mode, timer and swing head inputs can not be accepted when fa by timer and 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. When fan is enabled by SPEED key, the initial 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 MDOE 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 e. Light is independent A. OFF KEY When fan controller is on, press the OFF key, fan functions will be off except light output. B. SPEED KEY When fan control is off, press SPEED key, fan is turned on, initial state is LOW wind; when memory function is available, the wind grade will operate as last state. Both conditions have three seconds starting wind. Press the SPEED key again, the wind will be changed as follows : OFF LOW MEDIUM STRONG SPEED key used Pulse is put into OFF pin Page 4 V.1.0 三合微科股份有限公司 SAMHOP Microelectronics Corp. SM3502 FAN CONTROLLER C. MODE KEY SM3502 has three types of wind mode: normal, rhythm, sleep + rhythm. Memory function is available except on sleep mode. 1. OFF NOR RHY SLP-RHY : Press MODE key: normal setting : Pulse is put into OFF pin : SPEED key used D. LIGHTING CONTROL KEY The LIGHT key is independent and the output is toggle function. When the LIGHT key is pressed on panel, operation is as follows : OFF Light output key : Press LIGHT key E. SWING 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. OFF SHO enable (Right / Left) The SW key pressed Page 5 V.1.0 三合微科股份有限公司 SAMHOP Microelectronics Corp. SM3502 FAN CONTROLLER F. TIMER KEY SETTING SM3502 has many types of timer setting, mode "1" is ladder-adder and mode "2" is non-ladder adder for four steps. Timer key will not activate when fan controller is off. These types of timer may be chosen by bonding option. MODE "1": Timer with accumulation LED display Timer Setting 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 Four-steps Type A*1 A*2 A*3 A*4 MODE "2": Timer with non-accumulation LED display Timer Setting. 1 2 4 8 Four-steps Type A B C D G. MEMORY FUNCTION When memory function is available, wind speed, mode and swing functions will operate as last state; if last state is sleep mode, press SPEED key enable fan controller while memory functions(Speed/Mode/Swing) will be returned to the last state before sleep mode operation. H. STARTING WIND Fan controller starts with three seconds starting wind (Medium wind). Page 6 V.1.0 三合微科股份有限公司 SAMHOP Microelectronics Corp. SM3502 FAN CONTROLLER I. BUZZER Any key pressed on panel which will generate a 4KHz 50% duty cycle pulse train on buzzer output pin. a. When FAN is from stop mode to start mode (press SPEED key) Buzzer output will generate a "BI-BI" sound. a b c b. When FAN is from start mode to stop mode (press OFF key) Buzzer output will generate a long "BI" sound. d c. When FAN is operating (press any key other than OFF key) Buzzer output will generate a "BI" sound. e When a = c = e = 62ms b = 124ms d = 250ms Page 7 V.1.0 三合微科股份有限公司 SAMHOP Microelectronics Corp. SM3502 FAN CONTROLLER J. RHYTHM WIND FUNCTION S M L 0 2.5 5 7.5 10 12.5 15 17.5 20 22.5 25 27.5 30 32.5 35 37.5 40 42.5 45 47.5 50 52.5 55 57.5 60 62.5 65 67.5 70 72.5 75 77.5 80 STRONG RHYTHM WIND PATTERN S M L (SEC) 0 2.5 5 7.5 10 12.5 15 17.5 20 22.5 25 27.5 30 32.5 35 37.5 40 42.5 45 47.5 50 52.5 55 57.5 60 62.5 65 67.5 70 72.5 75 77.5 80 MEDIUM RHYTHM WIND PATTERN S M L (SEC) 0 2.5 5 7.5 10 12.5 15 17.5 20 22.5 25 27.5 30 32.5 35 37.5 40 42.5 45 47.5 50 52.5 55 57.5 60 62.5 65 67.5 70 72.5 75 77.5 80 LOW RHYTHM WIND PATTERN (SEC) K. SLEEP FUNCTION In sleep mode, wind grade is changed by timing automatically and the wind grade goes down automatically one step every 0.5hrs, until low wind level is reached.. S M L Strong Wind Medium Wind 0.5HRS 1HRS Page 8 Low Wind TIME V.1.0 三合微科股份有限公司 SAMHOP Microelectronics Corp. SM3502 FAN CONTROLLER TIMING CONTROL Speed Key Off Key t key Buz t buz Low Medium 3 sec. Strong Mode Key t key Normal Rhythm Sleep Off Key t key Fan Enable * NOTE: tbuz see page 12 and tkey see page 6 Page 9 V.1.0 三合微科股份有限公司 SAMHOP Microelectronics Corp. SM3502 FAN CONTROLLER DC ELECTRICAL CHARACTERISTICS Parameter Supply Voltage Stand-by Current Input High Level Input Low Level Sink Current (OFF,MODE,SPEED TIMER,SLEEP) Source Current (OFF,MODE,SPEED TIMER,SLEEP) Triac Sink Current (S,M,L,SW1, SW2,LIGHT) Triac Source Current (S,M,L,SW1, SW2,LIGHT) Sink Current (COM1~COM3) Source Current (COM1~COM3) Sink Current (BUZ) Source Current (BUZ) Pull-high Resister (Input pin) Symbol VDD ISB VIH VIL IOL VOL=+0.7V 10 OSC stop all output pins open all input fixed to VDD 3.5 1.5 Test Conditions Min. 3 Limits Typ. Max. 5 6 500 Unit V uA V V mA IOH VOH=+4.3V 10 mA IOL VOL=+0.7V 10 mA IOH VOH=+4.3V 5 mA IOL IOH IOL IOH RPH VOL=+0.7V VOH=+4.3V VOL=+0.7V VOH=+4.3V 40 10 4 5 200 mA mA mA mA K OHM *NOTE: All test conditions are on VDD = 5V / VSS = GND Page 10 V.1.0 三合微科股份有限公司 SAMHOP Microelectronics Corp. SM3502 FAN CONTROLLER ABSOLUTE MAXIMUM RATINGS Parameter Supply Voltage Input Voltage Output Voltage Maximum Power Consumption Operating Temperature Storage Temperature Symbol VDD-VSS Vi-VSS Vo-VSS Pa Topr Tstg VDD-VSS=5V Test conditions Ratings -0.3~6 VSS-0.3~VDD+0.3 VSS-0.3~VDD+0.3 500 -10~70 -40~125 Unit V V V mW C C SM3502 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 1.2uF / 400V 1N4004 VSS/-5.1V 220V AC INPUT 1N4004 220uF 16V 5.1V 0.5W 470uF 16V GND Page 11 V.1.0 三合微科股份有限公司 SAMHOP Microelectronics Corp. SM3502 FAN CONTROLLER ORDERING INFORMATION Logo Product No. A: A Type B: B Type 1: Timer Setting-Ladder Adder 2: Timer Setting-Shift SM3502 - A X XXX XX Serial Number Date Code ESD Protection Mark Page 13 V.1.0