PT8A3253WEX

PT8A3251/53 ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Ceramic Heating Controller Features Description  High watt density Alumina Heaters  High triggering current and double pulse trigger for designed for ceramic heating controller. The chip offers SCR 6 different default heat temperature settings including Enhanced MHP Algorithm for Quickly Heating-Up 150C, 170C, 185C, 200C, 215C, 230C. And the and Quickly Lost-Heat-Recover temperature range can be adjusted through external  Uniform Heat to Maintain Constant Temperature series resistance. The PT8A3251 has an internal timer; it  Adjustable to fit wide range heating plates timeouts and device will stop heating automatically after  Adjustable to different Thermal Coefficient of 216000 clock period, ie. 1 hour for 60Hz and 1.2 hour Resistively for 50Hz. The PT8A3251/53 also has over temperature Full compensation and insensitive to environment protection function. The chip is enclosed in Lead free temperature DIP-16 and SOIC-16.   The PT8A3251/53 is a Mix-signal CMOS chip  6 Heat Temperature Settings  Auto power off for PT8A3251  Over Temperature protection  Package: DIP-16 and SOIC-16 package Applications  Ceramic Heating Controller Pin Configuration L4 1 16 L3 C1 2 15 L2 C2 3 14 L1 REF2 4 PT8A3251/33 13 VDD2 REF1 5 12 VDD1 PTC 6 11 VB GATE 7 10 GND OT 8 9 CLK 12-07-0006 PT0224-1 1 07/06/12 PT8A3251/53 Ceramic Heating Controller |||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Pin Description Pin No. Pin Name I/O Pin Description 1 L4 I/O 2 C1 O LED scan common driver. 3 C2 O LED scan common driver. 4 REF2 I Reference 2 for internal comparator. 5 REF1 I Reference 1 for internal comparator. 6 PTC I Temperature sensor input. 7 GATE O SCR trigger output, active high. 8 OT O Over heat output, active high. 9 CLK I Clock input from power line. 10 GND GND 11 VB O 12 VDD1 Power Power. 13 VDD2 Power Power. 14 L1 I/O On/Off key input and LED anode output. 15 L2 I/O Down key input and LED anode output. 16 L3 I/O Up key input and LED anode output. Adjust Lost-heat-recover input and LED ON/OFF cathode output. Ground. PTC sampling power source. Block Diagram C1 C2 VB L1 PT C L2 Comp Logic Control L3 L4 REF1 Ref Select REF2 GAT E CLK OT Comp OSC 12-07-0006 PT0224-1 2 07/06/12 PT8A3251/53 Ceramic Heating Controller |||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Maximum Ratings Storage Temperature ................................................................................... -55oC to +150oC Ambient Temperature with Power applied...............................................-40oC to +85oC Supply Voltage to Ground Potential (Input & VDD Only).........................-0.5V to+6.5V Supply Voltage to Ground Potential (Output s Only) ................................-0.5V to+6.5V DC Input Voltage .............................................................................................-0.5V to +6.5V Input/Output Current ................................................................... 50mA Input/Output Current (Pin VDD2, VB only) ............................. 200mA Power Dissipation ......................................................................................................... 500mW Note: Stresses greater than those listed under MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. Recommended operation conditions Sym Parameter Pin Min Typ Max Unit VDD TA Operating Voltage Operating temperature VDD1, VDD2 - 4.0 -20 5.0 - 5.5 85 V °C DC Input Electrical Characteristics Sym Description Test Conditions PIN: PTC, CLK IIH Input high current PIN: L1, L2, L3, L4 PIN: PTC, CLK PIN: L4 IIL Input low current PIN: L1, L2, L3 VIH VIL Input High Voltage Input Low Voltage VIT Input Threshold Voltage PIN: L1, L2, L3 PIN: L1, L2, L3 VT1_Level VT2_Level VIN = VDD VIN = VDD (L1, L2, L3, L4 is of input) VIN = GND VIN = GND (L4 is of input) VDD =5.0V VIN = 2.0V (L1, L2, L3 is of input) L4 12-07-0006 Min Type Max - - 5 - - 5 - - -5 - - -5 -0.16 -0.20 -0.24 mA 0.8 VDD 2.8 1.1 3.3 1.6 0.4 VDD 3.8 2.1 V V V V PT0224-1 3 Unit A A 07/06/12 PT8A3251/53 Ceramic Heating Controller |||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| DC Output Electrical Characteristics Sym Description Test Conditions PIN: GATE PIN: OT IOH Output High Current PIN: L1, L2, L3 PIN:C1 PIN:L4 PIN: GATE PIN: OT IOL Output Low Current PIN: C1, C2 PIN: L4 V DD = 5.0V Vout = 4.5V V DD = 5.0V Vout = 4.5V V DD = 5.0V Vout = 2.2V V DD = 5.0V Vout = 4.5V V DD = 5.0V Vout = 4.5V V DD = 5.0V Vout =0.5V V DD = 5.0V Vout =0.5V V DD = 5.0V Vout =0.5V V DD = 5.0V Vout =2.8V Min Type Max -3.0 - - -3.0 - - -0.8 -1 -1.2 -3.0 - - -3.0 - - 4.0 - - 4.0 - - 4.0 - - 0.8 1 1.2 Unit mA mA Power Supply Characteristics Sym Description Test Conditions Min Type Max Unit VPOR IDD Voltage of POR Current consumption VDD Supply voltage TPOoff Power off timer No loading, V DD = 5.0V Control function normal FCLK= 50Hz 1.5 3.5 1.15 1.2 2.5 400 5.5 1.25 V A V Hour 12-07-0006 PT0224-1 4 07/06/12 PT8A3251/53 Ceramic Heating Controller |||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Temperature Control Characteristics Sym Description VT230 Threshold Voltage Level (150C) Threshold Voltage Level (170C) Threshold Voltage Level (185C) Threshold Voltage Level (200C) Threshold Voltage Level (215C) Threshold Voltage Level (230C) VOT280 Voltage Level of resistor net (280C) VT150 VT170 VT185 VT200 VT215 VT150H VT170H VT185H VT200H VT215H VT230H Heat-up Threshold Voltage Level (150C) Heat-up Threshold Voltage Level (170C) Heat-up Threshold Voltage Level (185C) Heat-up Threshold Voltage Level (200C) Heat-up Threshold Voltage Level (215C) Heat-up Threshold Voltage Level (230C) Test Conditions Type Unit 0.482 VB-VREF2 0.494 VDD2=5.0V VREF2=0.7V VREF1=0~100%(VB-VREF2) Test GATE output about 50% heating power VB-VREF2 0.503 VB-VREF2 0.512 V VB-VREF2 0.520 VB-VREF2 0.529 VB-VREF2 VDD2=5.0V VREF2=0.7V VREF1=0~100%(VB-VREF2) When increase VPTC, test OT is just from “L” to “H” 0.554 VB-VREF2 VT150 +1.9%(VB-VREF2) VT170 +1.7%(VB-VREF2) VDD2=5.0V VREF2=0.7V VREF1=100%(VB-VREF2) Test GATE output about 50% heating power VT1850 +1.6%(VB-VREF2) VT200 V +1.5%(VB-VREF2) VT215 +1.4%(VB-VREF2) VT230 +1.3%(VB-VREF2) 12-07-0006 PT0224-1 5 07/06/12 PT8A3251/53 Ceramic Heating Controller |||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Functional Description   3 Input Buttons On/Off: This button will toggle Heating-on or Heating-off. Once heating-on, the level 4 of 200C temperature setting always be selected. Up: Temperature up adjustment button. Push Upbutton once, the temperature setting increases one level until the highest level 6. Then after, Level 6 will be kept. Down: Temperature down adjustment button. Push Down-button once, the temperature setting reduces one level until the lowest level 1. Then after, Level 1 will be kept.  Reset After power on the chip will be reset by POR circuit, LED1~ LED7 are all disabled. GATE and OT PIN output are low level.  Timer (Only for PT8A3251) Once IC enters Heating-on state, internal timer starts to count. It timeouts and device will stop heating automatically after 216000 clock period, ie. 1 hour for 60Hz and 1.2 hour for 50Hz.  Over-Heat Protection Once heater loses control and reaches to 280C, the Over-Heat protection function will be activated by driving one SCR to melt the fuse immediately. 7 LED Indicator LED1: Heating-on or Heating-off LED2: 150C temperature setting (level 1) LED3: 170C temperature setting (level 2) LED4: 185C temperature setting (level 3) LED5: 200C temperature setting (level 4) LED6: 215C temperature setting (level 5) LED7: 230C temperature setting (level 6) Note: The temperature range can be adjusted by external series resistance. Application Circuit 12-07-0006 PT0224-1 6 07/06/12 PT8A3251/53 Ceramic Heating Controller |||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Mechanical Information PE (DIP-16) PKG. DIMENSIONS(MM) SYMBOL Min Max A 3.71 4.31 A1 0.51 A2 3.20 3.60 B 0.38 0.57 B1 1.52 BSC c 0.20 0.36 D 18.80 19.20 E 6.20 6.60 E1 7.32 7.92 e 2.54 BSC L 3.00 3.60 Note: 1) Controlling dimensions in millimeters. 2) Ref : JEDEC MS-001D/BB E2 12-07-0006 8.40 9.00 PT0224-1 7 07/06/12 PT8A3251/53 Ceramic Heating Controller |||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| WE (SOIC-16) PKG. DIMENSIONS(MM) SYMBOL MIN MAX A 1.35 1.75 A1 0.10 0.25 A2 1.35 1.55 b 0.33 0.51 c 0.17 0.25 D 9.80 10.20 E 3.80 4.00 E1 5.80 6.20 e 1.27 BSC L 0.40 1.27 θ 0° 8° Note: 1) Controlling dimensions in millimeters. 2) Ref : JEDEC MS-012E/AC Ordering Information Ordering No. PT8A3251PE PT8A3251WE PT8A3253PE PT8A3253WE Package Code P W P W Package Lead free DIP-16 Lead free SOIC-16 Lead free DIP-16 Lead free SOIC-16 Note:  E = Pb-free  Adding X Suffix= Tape/Reel Pericom Semiconductor Corporation  1-800-435-2336  www.pericom.com Pericom 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 does not assume any responsibility for use of any circuitry described other than the circuitry embodied in Pericom product. The company makes no representations that circuitry described herein is free from patent infringement or other rights, of Pericom. 12-07-0006 PT0224-1 8 07/06/12