Data Sheet PT8A3201 Dual Voltage Quick Heat Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Features The PT8A3201 is a mixed signal CMOS LSI chip designed for the automatic controller of heat with • Dual Volatge (110V/220V) operation external NTC temperature sensor. The chip drives • Auto temperature control with NTC an external TRIAC with full cycle to provide instant • Multi mode LED indicator heat. It can be used in both 110V and 220V AC • Drive TRIAC device to provide fast heat supplies by automatically adjust the power level to • Auto power off the controlled load. Applications This device provides three functions: - Reset state: All input terminals are inactive and • Hair Curler output terminals output HIGH level. • Electronic Oven • Electronic Radiator - Auto off power after approximately 1 hour • Constant Temperature Electronic Iron, etc. - Auto temperature control: Maintains user selected temperature according to NTC input condition. Ordering Information The circuit will automatically adjust output duty cycles according to heater operating voltages (e.g. Part Number Package PT8A3201P 8 - Pin PDIP PT8A3201W 8 - Pin SOIC 110V and 220V). Block Diagram Vcc CLK Timer GND fCLK NTC A/D Controller GATE LED LEVEL PB PT0104(07/03) Input Pulse Detector 1 Ver:0 Data Sheet PT8A3201 Dual Voltage Quick Heat Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Pin Assignment Figure 2 1 NTC 2 CLK 3 GND 4 8 Vcc 7 LED 6 GATE 5 LEVEL PT8A3201P PB Top view Pin Description Pin Name Type Description 1 PB I Push Button Input: Switch input to turn on (high) and turn off (low). Input must be hold for 12 AC clock cycles to activate functions. 2 NTC I Temperature sensor interface terminal 3 CLK I AC line Clock signal input 4 GND 5 LEVEL I Select input for 110V (high) and 220V(low) AC line voltage 6 GATE O TRAIC trigger output, active low 7 LED O LED indicator to show operating conditions, active low 8 VCC Power Ground Ground Power supply Effect of NTC and LEVEL on GATE Working State ON state NTC 0 ~ V1 V1 ~ V2 V2 ~ VCC Reset State X* LEVEL H GATE (Trigger to Traic) 100% Power LED Flash* L 25% Power Flash* H 50% Power Flash* L 12.5% Power Flash* H 0 L L 0 L X 0 H * 1. LED Flash Frequency is 1/32CLK, duty cycle 50%. 2. X means any level input. PT0104(07/03) 2 Ver:0 Data Sheet PT8A3201 Dual Voltage Quick Heat Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Effect of NTC and Pulse Trigger on GATE AC Power 1 Gate (100% Power) 0 Gate (50% Power) 1 0 1 Gate (25% Power) 0 Gate (12.5% Power) 1 0 Gate (0%) Power) 1 0 Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested) Note: Storage Temperature ..............................................................-25oC to +85oC Stresses greater than those listed under MAXIMUM Ambient Temperature with Power Applied .....................-10 oC to +70 oC RATINGS may cause permanent damage to the Supply Voltage to Ground Potential (Inputs & VCC Only) .... -0.5 to +5.5V device. This is a stress rating only and functional Supply Voltage to Ground Potential (Outputs & D/O Only) -0.5 to +5.5V operation of the device at these or any other condiDC Input Voltage ....................................................................... -0.5 to +5.5V tions above those indicated in the operational secDC Output Current .................................................................................20mA tions of this specification is not implied. Exposure Power Dissipation .............................................................................. 500mW to absolute maximum rating conditions for extended periods may affect reliability. Recommended Operation Conditions Sym Description Pin Min Typ Max Units VCC Supply Voltage VCC 3.5 4.0 5.5 V VIH Input High Voltage 0.7VCC - VCC V VIL Input Low Voltage 0 - 0.3VCC V fCLK Input Clock Frequency 40 50 100 Hz TA Operation Temperature -10 - 70 PT0104(07/03) CLK, PB CLK 3 o C Ver:0 Data Sheet PT8A3201 Dual Voltage Quick Heat Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| DC Electrical Characteristics (VCC = 3.5 ~ 5V, TA = -10 ~ 70ºC, unless otherwise noted) Symbol Description Test Conditions Min Norm PIN: NTC,CLK LEVEL I IH Input high current Input low current PIN: NTC,CLK, LEVEL PIN: GATE V CC = 4.0V Vout = 3.5V Output High Voltage PIN: LED PIN: GATE I OL 10 µA 100 µA -10 µA -100 µA VIN = GND PIN: PB IOH Unit VIN = VCC PIN: PB IIL Max V CC = 4.0V Vout =0.5V Output Low Voltage PIN: LED -4.0 mA -2.0 mA 10 mA 2 mA VIH Input High Voltage VIL Input Low Voltage VTLEVEL Input Threshold Voltage of Level Pin - 0.48 VCC VNTC1 Input Voltage1 of NTC Pin - 0.71VCC PIN: CLK, PB V CC = 4.0V 0.7VCC V 0.3VCC 0.52 VCC 0.72 VCC V 0.73VCC V VNTC2 Input Voltage2 of NTC Pin - 0.74VCC I CC Current consumption All inputs set to GND 0.75 VCC 0.76VCC 500 µA AC Electrical Characteristics (VCC = 3.5 ~ 5V, TA = -10 ~ 70ºC, unless otherwise noted) Sym Description Test Conditions Min Typ Max Units fCLK Frequency of CLK VCC = 4V 10 50 100 Hz Timer Power off Timer fCLK = 50Hz 1.15 1.2 1.25 Hour TGATE Width of Gate trigger Pulse Vcc = 4V 500 2500 µs PT0104(07/03) 4 Ver:0 Data Sheet PT8A3201 Dual Voltage Quick Heat Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| GND LEVEL R6 D1 R2 2M 39K(2W) R9 3k R5 10k K2 R4 10k OFF C2 0.1u 4 CLK GATE 5 1u C6 6 7 LED NTC 2 C3 100p 3 8 Vcc 1 PB PT8A3201 ON C1 0.1u/250V 110/220V R1 200 D2 5.1V C5 100u + NTC K1 R3 10k Heater R10 1M TR1 TRIAC 10k R11 LED 1 R8 33k R7 3.3k C4 10u Application Circuit PT0104(07/03) 5 Ver:0 Data Sheet PT8A3201 Dual Voltage Quick Heat Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Mechanical Information 8-Pin SOIC PT0104(07/03) 6 Ver:0 Data Sheet PT8A3201 Dual Voltage Quick Heat Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Notes Pericom Technology Inc. Email: [email protected] Web Site: www.pti.com.cn, www.pti-ic.com China: No. 20 Building, 3/F, 481 Guiping Road, Shanghai, 200233, China Tel: (86)-21-6485 0576 Fax: (86)-21-6485 2181 Asia Pacific: Unit 1517, 15/F, Chevalier Commercial Centre, 8 Wang Hoi Rd, Kowloon Bay, Hongkong Tel: (852)-2243 3660 Fax: (852)- 2243 3667 U.S.A.: 2380 Bering Drive, San Jose, California 95131, USA Tel: (1)-408-435 0800 Fax: (1)-408-435 1100 Pericom Technology Incorporation reserves the right to make changes to its products or specifications at any time, without notice, in order to improve design or performance and to supply the best possible product. Pericom Technology does not assume any responsibility for use of any circuitry described other than the circuitry embodied in Pericom Technology product. The company makes no representations that circuitry described herein is free from patent infringement or other rights, of Pericom Technology Incorporation. PT0104(07/03) 7 Ver:0