PT8A3254WEX

||||||||||||||||||||||||||||||||||||||||||||||||||| PT8A3252/54 |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| 5LED Ceramic Heating Controller Features Description  Pulse trigger with high current for SCR  Quickly Heating-Up and Quickly Lost-Heat- heating control with 5 internal level of 130C, 145C, Recover 160C, 175C, 190C. And the temperature range can be  External Adjustable to fit wide range heating plates adjusted from 100C to 250C by external series  External Adjustable to different TCR of sensors resistance. It can drive SCR directly and detect heater  Full temperature compensation and insensitive to temperature by heater-self without extra temperature environment temperature sensor. It has 3 keys for function setting, 5 LEDs for  5 Heat Temperature Settings working status indication. The PT8A3252 has an  Auto power off (only for PT8A3252) internal timer; it timeouts and device will stop heating  Over Temperature protection automatically after 216000 clock period, ie. 1 hour for  DIP-16 and SOIC-16 packages 60Hz and 1.2 hour for 50Hz. The circuit of Over-Heat The PT8A3252/54 is specially designed for ceramic Protection will be working for safety when heater temperature reached to 250C. The chip is packaged in Applications lead free DIP-16 and SOIC-16.  Ceramic Heating Controller  High watt density Alumina Heaters Pin Configuration L4 1 16 L3 C1 2 15 L2 C2 3 14 L1 REF2 4 PT8A3252/54 13 VDD1 REF1 5 12 VDD2 PTC 6 11 VB GATE 7 10 GND OT 8 9 CLK 12-07-0006 PT0233-1 1 07/06/12 PT8A3252/54 5LED 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 O 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. 9 CLK I Clock input from power line. 10 GND GND 11 VB O 12 VDD2 Power Power. 13 VDD1 Power Power. 14 L1 I/O On/Off key input and LED output. 15 L2 I/O Down key input and LED output. 16 L3 I/O Up key input and LED output. Adjust input and LED 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 PT0233-1 2 07/06/12 |||||||||||||||| PT8A3252/54 5LED Ceramic Heating Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Maximum Ratings Storage Temperature ................................................................................... -55oC to +150oC Ambient Temperature with Power applied...............................................-20oC 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 - 6.0 85 V °C DC Input Electrical Characteristics Symbol 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 -0.06 - -0.20 mA 0.8 VDD 2.8 1.1 3.3 1.6 0.4 VDD 3.8 2.1 V V V V PT0233-1 3 Unit A A 07/06/12 |||||||||||||||| PT8A3252/54 5LED Ceramic Heating Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| DC Output Electrical Characteristics Symbo l 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 = 2.5V V DD = 5.0V Vout = 4.5V V DD = 5.0V Vout = 4.5V 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 =0.5V Min Type Max -15 - - -3.0 - - -3.0 -1 -1.2 -3.0 - - -3.0 - - 4.0 - - 4.0 - - 4.0 - - 4.0 - - Unit mA mA Power Supply Characteristics Symbo l 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 4.0 1.15 1.2 2.5 400 6.0 1.25 V A V Hour Type Unit Temperature Control Characteristics Symbol Description VT130 Threshold Voltage Level (130C) VT145 Threshold Voltage Level (145C) VT160 Threshold Voltage Level (160C) VT175 Threshold Voltage Level (175C) VT190 Threshold Voltage Level (190C) VOT250 Voltage Level of resistor net (250C) Test Conditions 0.467 VDD2=5.0V VREF2=0.7V VREF1=0~100%(VB-VREF2) Test GATE output about 50% heating power VB-VREF2 0.477 VB-VREF2 0.488 VB-VREF2 V 0.497 VB-VREF2 0.506 VB-VREF2 VDD2=5.0V VREF2=0.7V VREF1=0~100%(VB-VREF2) When increase VPTC, test OT is just from “L” to “H” 12-07-0006 0.539 VB-VREF2 PT0233-1 4 V 07/06/12 PT8A3252/54 5LED Ceramic Heating Controller |||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Functional Description   3 Input Buttons On/Off: This button will toggle Heating-on or Heating-off. Once heating-on, the level 1 of 130C temperature setting always be selected. Up: Temperature up adjustment button. Push Upbutton once, the temperature setting increases one level until the highest level 5 is reached. Down: Temperature down adjustment button. Push Down-button once, the temperature setting reduces one level until the lowest level 1is reached.  Reset After power on the chip will be reset by internal POR circuit, LED1~ LED5 are all disabled. GATE and OT PIN output are low level.  Timer (only for PT8A3252) 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 250C, the Over-Heat protection function will be activated by driving one SCR to melt the fuse immediately. 5 LED Indicator (Internal) LED1: 130C temperature setting (level 1) LED2: 145C temperature setting (level 2) LED3: 160C temperature setting (level 3) LED4: 175C temperature setting (level 4) LED5: 190C temperature setting (level 5) Note: The temperature range can be adjusted from 100C to 250C by external series resistance. Application Circuit RS1 RS2 8.2~16K for 110V 5.6~12K for 220V Level 1 39K 10K Level 2 10K 10K Level 3 10K 39K RA, RB: Temperature adjustment. RX: Overshoot adjustment. RS: Recover sensitivity adjustment RS1 100 0.47~2.0K RS2 12-07-0006 PT0233-1 5 07/06/12 PT8A3252/54 5LED Ceramic Heating Controller |||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Mechanical Information PE (Lead free 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 PT0233-1 6 07/06/12 PT8A3252/54 5LED Ceramic Heating Controller |||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| WE (Lead free 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. PT8A3252PE PT8A3252WE PT8A3254PE PT8A3254WE 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 PT0233-1 7 07/06/12