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| SM3501 SAMHOP Microelectronics Corp. 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 SM3501 SAMHOP Microelectronics Corp. 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 SM3501 SAMHOP Microelectronics Corp. 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 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 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 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 SM3501 SAMHOP Microelectronics Corp. 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 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 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 SM3501 SAMHOP Microelectronics Corp. 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 J J 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 g A 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 SM3501 SAMHOP Microelectronics Corp. 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 / 0.25W 1A 47 /1W 3.3uF/250V 1N4004 47 / 0.25W VSS/-5.1V 110V AC INPUT 1N4004 220uF 16V 5.1V 0.5W 470uF 16V GND 180 / 1W 1A 180 / 1W 200K / 1W 47 / 0.25W 47 / 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 SM3501 SAMHOP Microelectronics Corp. FAN CONTROLLER SM3501BX APPLICATION CIRCUIT AC INPUT Loading M1 L M S SM3501BX 470[ 560[ 470[ 455KHz -5V 470 LOW TGO BUZ OSC1 OSC2 MID STR OPTION2 VSS COM2 COM1 [ 470 [ -5V -5V 100 [ 100 [ 2HR 1/2HR SLP 1HR MODE TIMER SPEED 20p TO VSS 20p OPTION1 VDD SPEED TGI MODE 10K[ 10K[ 10K[ STR TIMER ON-OFF/ OFF 4HR MID LOW RHY NOR LIGHT SWING SPEED 10K[ 10K[ Page 11 V.2.0 Mar 8,2002 SM3501 SAMHOP Microelectronics Corp. FAN CONTROLLER SM3501AX APPLICATION CIRCUIT AC INPUT Loading M1 L M S SM3501AX 470[ 560[ -5V 180K[ OSC2 OPTION1 VDD SPEED TGI COM2 COM1 470 LOW TGO BUZ OSC1 MID STR OPTION2 VSS [ 470 [ -5V -5V 100 [ 100 [ 2HR 1/2HR SLP 1HR MODE TIMER SPEED MODE 10K[ 10K[ 10K[ STR TIMER ON-OFF/ OFF 4HR MID LOW 47u / 16V RHY NOR LIGHT SWING SPEED 10K[ 10K[ Page 12 V.2.0 Mar 8,2002 |
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