| |||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| |||||||||||||||||||||||||||||||||||||||||||| 5led ceramic heating controller 12 - 07 - 0006 pt0 2 33 - 1 07/0 6 /12 1 p t8a325 2/54 features ? p ulse trigger with high current for scr ? quickly heat ing - up and quickly lost - heat - recover ? external adjustable to fit wide range heating plates ? external adjustable to different tcr of sensors ? full temperature compensation and insensitive to enviro nment temperature ? 5 heat temperature settings ? auto power off (only for p t8a3252 ) ? over temperature protection ? dip - 16 and soic - 16 package s application s ? ceramic heating controller ? high watt density alumina heaters description the p t8a3252/54 is speci al ly designed for ceramic heating control with 5 internal level of 130 ? c, 145 ? c, 160 ? c, 175 ? c, 190 ? c. and the temperature range can be adjusted from 100 ? c to 250 ? c by external series resistance. it can drive scr directly and detect heater temperature by he ater - self without extra temperature sensor. it has 3 keys for function setting, 5 led s for working status indication . the p t 8a 3252 has an internal timer ; it timeouts and device will stop heating automatically after 216000 clock period, ie. 1 hour for 60hz and 1.2 hour for 50hz. the circuit of over - heat protection will be working for safety when heater temperature reached to 250 ? c. the chip is packaged in lead free dip - 16 and soic - 16 . pin configuration l 4 l 2 l 3 ref2 c2 c1 ref1 ptc gate o t l 1 vdd 1 vdd 2 vb gnd clk 1 2 6 5 4 3 9 8 7 1 1 1 2 1 3 1 4 1 5 p t8a3252/54 1 6 1 0
|||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||| 12 - 07 - 0006 pt0 2 33 - 1 07/0 6 /12 2 p t8a3252/54 5led ceramic heating controller pin description pin no. pin n ame i/o pin description 1 l4 i /o adjust input and led output . 2 c1 o led scan common d r iver . 3 c2 o led scan common d r iver . 4 ref2 o reference 2 for internal comparator . 5 ref1 i reference 1 for internal c omparator . 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 ground. 11 vb o ptc sampling power source . 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 . block diagram ref select comp comp osc logic control vb pt c ref1 ref2 clk c1 c2 l1 l2 l3 l4 gat e ot
|||||||||||||||| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| 12 - 07 - 0006 pt0 2 33 - 1 07/0 6 /12 3 p t8a3252/54 5led ceramic heating controller maximum ratings storage temperature ................................ ................................ ................... - 55 o c to +1 50 o c ambient temperature with power applied ................................ ............... - 20 o c to + 85 o c supply voltage to ground potential ( input & v dd only ) ......................... - 0.5v to +6.5 v supply voltage to ground potential ( output s only ) ................................ - 0.5v to +6.5 v dc input voltage ................................ ................................ ............................. - 0 .5v to + 6.5 v input/ output current ................................ ................................ ... 5 0ma input/ output current (pin vdd2, vb only) ............................. 200 ma power dissip ation ................................ ................................ ................................ ......... 5 00mw recommended operation conditions sym parameter pin min typ max unit vdd operating voltage vdd1, vdd2 4. 0 5.0 6.0 v t a operating temperature - - 20 - 85 c dc input electrical characteristics symbol description test conditions min type max unit i ih input high current pin: ptc , clk v in = v dd - - 5 ? a pin: l1, l2, l3, l4 v in = v dd (l1, l2, l3, l4 is of input) - - 5 i il input low current pin: ptc, clk v in = gnd - - - 5 ? a pin: l4 v in = gnd ( l 4 is of input) - - - 5 pin: l1, l2, l3 v dd =5.0v v in = 2.0v ( l 1, l2, l3 is of input) - 0. 06 - - 0.2 0 ma v i h input high voltage pin: l1, l2, l3 - 0.8 v dd - - v v il input low voltage pin: l1, l2, l3 - - - 0.4 v dd v v it input threshold voltage vt1_level l 4 2.8 3.3 3.8 v vt2_level 1.1 1 .6 2.1 v 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 th e device at these or any other condi - tions above those indicated in the operational sec - tions of this specification is not implied. exposure to absolute maximum rating conditions for extended periods may affect reliability.
|||||||||||||||| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| 12 - 07 - 0006 pt0 2 33 - 1 07/0 6 /12 4 p t8a3252/54 5led ceramic heating controller dc output electrical characteristics symbo l description test conditions min type max unit i oh output high current pin: gate v dd = 5.0v vout = 2.5v - 15 - - ma pin: ot v dd = 5.0v vout = 4.5v - 3 .0 - - pin: l1, l2, l3 v dd = 5 .0v vout = 4.5v - 3.0 - 1 - 1.2 pin:c1 v dd = 5.0v vout = 4.5v - 3.0 - - pin:l4 v dd = 5.0v vout = 4.5v - 3.0 - - i ol output low current pin: gate v dd = 5.0v vout =0.5v 4.0 - - ma pin: ot v dd = 5.0v vout =0.5v 4.0 - - pin: c1, c2 v dd = 5.0 v vout =0.5v 4.0 - - pin: l4 v dd = 5.0v vout =0.5v 4.0 - - power supply characteristics symbo l description test conditions min type max unit v por voltage of por - 1.5 - 2.5 v i dd current consumption n o loading , v dd = 5.0v - - 400 ? a v dd su pply voltage control function normal 4.0 - 6.0 v tpo off power off timer f clk = 50hz 1.15 1.2 1.25 hour temperature control characteristics symbol description test conditions type unit vt 130 threshold voltage level (130c) vdd2=5.0v vref2=0.7v vref1 =0~100%(vb - vref2) test gate output about 50% heating power 0.467 vb - v ref2 v vt 145 threshold voltage level (145c) 0.477 vb - v ref2 vt 160 threshold voltage level (160c) 0.488 vb - v ref2 vt 175 threshold voltage level (175c) 0.497 vb - v ref2 vt 190 thresho ld voltage level (190c) 0.506 vb - v ref2 vot 250 voltage level of resistor net (250c) vdd2=5.0v vref2=0.7v vref1=0~100%(vb - vref2) when increase vptc, test ot is just from l to h 0.539 vb - v ref2 v
|||||||||||||||| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| 12 - 07 - 0006 pt0 2 33 - 1 07/0 6 /12 5 p t8a3252/54 5led ceramic heating controller functional description ? 3 input button s 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 up - button once , the temperature setting increase s one level until the highest leve l 5 is reached . dow n : temperature down adjust ment button . push down - button on ce , the temperature setting reduce s one level until the lowest level 1 is reached . ? 5 led indicator (internal) led1 : 1 30 ? c temperature setting (level 1) led2 : 1 45 ? c temperature s etting (level 2) led3 : 1 60 ? c temperature setting (level 3) led4 : 175 ? c temperature setting (level 4) led5 : 190 ? c temperature setting (level 5) note: t he temperature range can be adjusted from 100 ? c to 250 ? c by external series resistance. ? 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 enter s heating - on state, internal timer start s to count. it time out s and device will stop heating autom atically after 216000 clock period , ie. 1 hour for 60hz and 1.2 hour for 50hz. ? over - heat protection once heater lose s control and reach es to 25 0 ? c, the over - heat protection function will be activated by driving one scr to melt the fuse immediately . application circuit 100 8.2~16k for 110v 5.6~12k for 220v 0.47 ~2.0k rs1 rs2 level 1 level 2 level 3 rs1 39k 10k 10k rs2 10k 10k 39k ra, rb: temperature adjustment. rx: overshoot adjustment. rs: recover sensitivity adjustment
|||||||||||||||| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| 12 - 07 - 0006 pt0 2 33 - 1 07/0 6 /12 6 p t8a3252/54 5led ceramic heating controller mechanical information pe ( lead free dip - 16 ) symbol min max a 3.71 4.31 a1 0.51 a2 3.20 3.60 b 0.38 0.57 b1 c 0.20 0.36 d 18.80 19.20 e 6.20 6.60 e1 7.32 7.92 e l 3.00 3.60 e2 8.40 9.00 pkg. dimensions(mm) 1.52 bsc 2.54 bsc note: 1) controlling dimensions in millimeters. 2) ref : jedec ms - 001d/bb
|||||||||||||||| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| 12 - 07 - 0006 pt0 2 33 - 1 07/0 6 /12 7 p t8a3252/54 5led ceramic heating controller we ( lead free soic - 16 ) ordering information ordering no. package code package p t8a3252 pe p lead free dip - 1 6 p t8a3252 we w lead fre e soic - 1 6 p t8a3254 pe p lead free dip - 1 6 p t8a3254 we w lead free soic - 1 6 note: ? e = pb - free ? adding x suffix = tape /r eel pericom semiconductor corporation ? 1 - 800 - 435 - 2336 ? www.pericom.com pericom reserves the ri ght 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 t he circuitry embodied in pericom product. the company makes no representations that circuitry described herein is free from patent infringement or other rights, of pericom . 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 l 0.40 1.27 0 8 pkg. dimensions(mm) 1.27 bsc note: 1 ) controlling dimensions in millimeters. 2 ) ref : jedec ms - 012 e/ac
|
