三合微科股份有限公司 SM3501 SAMHOP Microelectronics Corp. FAN CONTROLLER GENERAL DESCRIPTION FEATURES 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. * High performance CMOS technology 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. APPLICATIONS * Electronic Fan * Heater Fan * 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 PIN ASSIGNMENT LOW TGO BUZ OSC1 OSC2 OPTION1 VDD SPEED TGI 1 2 3 4 5 6 7 8 9 18 17 16 15 14 13 12 11 10 MID STR OPTION2 VSS COM2 COM1 MODE TIMER ON-OFF/OFF SM3501 Page 1 V.2.0 Mar 8,2002 三合微科股份有限公司 SM3501 SAMHOP Microelectronics Corp. FAN CONTROLLER PIN FUNCTION No. Pin Name I/O Function 1 LOW O Wind speed control output 2 TGO O Toggle output 3 BUZ O Trigger output to drive piezo 4 OSC1 I Crystal input 5 OSC2 O Crystal output 6 OPTION1 I Fan start-up option-float: Speed, VDD:ON/OFF 7 VDD POWER 8 SPEED I/O Wind grade selection input and LED output 9 TGI I/O Toggle output control input and LED output 10 OFF/ON-OFF I/O ON-OFF or OFF function control input and LED output 11 TIMER I/O Timer setting input and LED output 12 MODE I/O Wind mode selection input and LED output 13 COM1 O LED scanning common pin 14 COM2 O LED scanning common pin 15 VSS POWER 16 OPTION2 I Timer mode option-float: nonadder, VSS: adder 17 STR O Wind speed control output 18 MID O Wind speed control output Positive power Negative power supply Page 2 V.2.0 Mar 8,2002 三合微科股份有限公司 SM3501 SAMHOP Microelectronics Corp. FAN CONTROLLER PANEL DISPLAY 4HR (8HR) OFF (ON-OFF) S 2HR (4HR) SLP M 1HR (2HR) RHY L 1/2HR (1HR) NOR ON/SPPED (SPEED) * NOTE: " TIMER MODE TGO TGI " Function can be chosen. BLOCK DIAGRAM VDD VSS BUZ Buzzer OPTION1 OPTION2 Fan Function Control SPEED/ MODE/ TIMER/ SWING/ MENORT OSC1 Oscillator OSC2 OFF SPEED TIMER MODE TGI STRONG Timer Key Input MEDIUM LED Output Output Drive LOW Scan_Signal COM1 COM2 TGO System Timing Generator Page 3 V.2.0 Mar 8,2002 三合微科股份有限公司 SM3501 SAMHOP Microelectronics Corp. 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 SM3501 SAMHOP Microelectronics Corp. 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 SM3501 SAMHOP Microelectronics Corp. 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 SM3501 SAMHOP Microelectronics Corp. FAN CONTROLLER G. RHYTHM WIND FUNCTION S M L 0 6 12 18 24 30 36 42 48 (SEC) 36 42 48 (SEC) 36 42 48 (SEC) STRONG RHYTHM WIND PATTERN S M L 0 6 12 18 24 30 MEDIUM RHYTHM WIND PATTERN S M L 0 6 12 18 24 30 LOW RHYTHM WIND PATTERN Page 7 V.2.0 Mar 8,2002 三合微科股份有限公司 SM3501 SAMHOP Microelectronics Corp. FAN CONTROLLER H. SLEEP WIND FUNCTION In sleep mode, wind grade is changed by timing automatically. S M Strong rhythm wind Medium rhythm wind L 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 SM3501 SAMHOP Microelectronics Corp. FAN CONTROLLER ABSOLUTE MAXIMUM RATINGS Parameter Symbol Ratings Unit VDD - Vss -0.3 ~ 6 V Input Voltage VI - Vss Vss -0.3 ~ VDD +0.3 V Output voltage VO - Vss Vss -0.3 ~ VDD +0.3 V 500 mW Supply Voltage Maximum power consumption Conditions Pa VDD - Vss = 5 V Operating temperaturer Topr -10 ~ 70 ℃ Storage temperature Tstg -40 ~ 125 ℃ DC ELECTRICAL CHARACTERISTICCS Parameter Supply voltage Symbol Conditions VDD - Vss Limit Min. Typ. Max. 4 5 Unit 6 V 500 μA Stand-by current ISB OSC stop all output pins open all input fixed to VDD Source current (OFF, MODE, SPEED, SWING, TIMER) IOH VOH=+4.3V 15 mA Triac sink current (S, M, L, SWING) IOL VOL=+0.7V 25 mA Sink current (COM1 ~ COM2) IOL VOL=+0.7V 60 mA Sink current (BUZ) IOL VOL=+0.7V 10 mA Page 9 V.2.0 Mar 8,2002 三合微科股份有限公司 SM3501 SAMHOP Microelectronics Corp. FAN CONTROLLER SM3501 PIN OPTION PIN 6 PIN 16 FLOATING Start up by SPEED key 1-2-4 or 1-2-4-8HR, Non-accumulation TO VDD Start up by ON / OFF key TO VSS 1/2-1-2 or 1/2-1-2-4HR, Accumulation SM3501 POWER SUPPLY APPLICATION CIRCUIT 47 Ω / 0.25W 100K/1W 1A 47Ω /1W 110V AC INPUT 1N4004 3.3uF/250V 1N4004 220uF 16V 47 Ω / 0.25W 5.1V 0.5W VSS/-5.1V 470uF 16V GND 1A 220V AC INPUT 180 Ω / 1W 200K / 1W 180 Ω / 1W 1.2uF / 400V 47 Ω / 0.25W 1N4004 1N4004 220uF 16V 47 Ω / 0.25W 5.1V 0.5W VSS/-5.1V 470uF 16V GND Page 10 V.2.0 Mar 8,2002 三合微科股份有限公司 SM3501 SAMHOP Microelectronics Corp. FAN CONTROLLER SM3501BX APPLICATION CIRCUIT AC INPUT Loading M1 L M S SM3501BX 470Ω 560Ω 470Ω 455KHz -5V LOW MID TGO STR BUZ OPTION2 OSC1 20p TO VSS 20p COM2 OPTION1 COM1 VDD MODE SPEED TIMER ON-OFF/ OFF -5V -5V VSS OSC2 TGI 470 Ω 470 Ω 100 Ω 100 Ω 2HR 1/2HR MODE 10KΩ STR SLP TIMER 10KΩ 4HR 1HR SPEED 10KΩ MID RHY LIGHT SWING 10KΩ LOW NOR SPEED 10KΩ Page 11 V.2.0 Mar 8,2002 三合微科股份有限公司 SM3501 SAMHOP Microelectronics Corp. FAN CONTROLLER SM3501AX APPLICATION CIRCUIT AC INPUT Loading M1 L M S SM3501AX 470Ω 560Ω -5V LOW MID TGO STR BUZ OPTION2 OSC1 470 Ω 470 Ω -5V VSS 100 Ω 100 Ω 180KΩ OSC2 COM2 OPTION1 COM1 VDD MODE SPEED TIMER TGI ON-OFF/ OFF -5V 2HR 1/2HR MODE 10KΩ STR SLP TIMER 10KΩ 4HR 1HR SPEED 10KΩ MID RHY LIGHT SWING 10KΩ LOW NOR SPEED 10KΩ 47u / 16V Page 12 V.2.0 Mar 8,2002