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  |||||||||||||||| ||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||| ||||||||||||||||||||||||||||||||||||||||| heating controller 12 - 07 - 0006 pt02 62 - 1 07/0 6 /12 1 pt 8 a 32 90/1/2/3/4/5/6/7 features ? dual voltage (120 v /240 v ) operations ? auto temperature control with ntc ? ntc open protection ? multi mode led indicator ? proportional control ? pulse trigger for high current scr/triac (up to 15ma) ? internal zener ? auto heating off after heating timer timeo ut ? low cost 8 - pin dip and soic package application s ? curler ? straightener description the pt8a329 0/1/2/3/4/5/6/7 is a mixed signal cmos lsi chip designed as heating controller with help of external ntc (negative temperature component). ntc open protect ion is implemented for device safety. this device can be used in both 1 2 0v and 2 4 0v power line supplier, as it will automatically adjust the heating power according to the power line voltage to avoid heating appliance damage or long heating time. the propo rtional control algorithm is designed in this product. pin information pin description pin no. pin name i/o description 3290/1/2/3 3294/5/6/7 1 ntc1 ntc1 i ntc voltage input, ntc open detection input 2 ntc2 ntc2 o output signal for ntc ope n detection 3 clk clk i clock input from power line 4 gnd gnd power ground and power 5 on on_off i/o 3290/1/2/3: heating - on button input. and led1 driving output 3294/5/6/7: heating - on/off button input and led1 driving output 6 gate gate o triac trigg er output 7 off led2 i/o 3290/1/2/3: heating - off button input and led2 driving output 3294/5/6/7: led2 driving output 8 vdd vdd power ground and power ntc1 ntc2 clk gnd on gate off vdd 1 2 3 4 5 6 7 8 pt 8a3270/1/2/3 ntc1 ntc2 clk gnd on/off gate led2 vdd 1 2 3 4 5 6 7 8 pt 8a3274/5/6/7 ntc1 ntc2 clk gnd on/off gate turbo vdd 1 2 3 4 5 6 7 8 pt 8a3278/9 ntc1 ntc2 clk gnd led1 gate led2 vdd 1 2 3 4 5 6 7 8 pt 8a3280/1/2/3 pt 8a3290/1/2/3 pt 8a3294/5/6/7 pt 8a3288/9 pt 8a3284/5/6/7
|||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| 12 - 07 - 0006 pt02 62 - 1 07/0 6 /12 2 pt 8 a 3290/1/2/3/4/5/6/7 heating controller block diagram precise adc off/led2 5bit adc controller ntc2 ntc1 clk gate off/turbo/led2 on/on_off/led1
|||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| 12 - 07 - 0006 pt02 62 - 1 07/0 6 /12 3 pt 8 a 3290/1/2/3/4/5/6/7 heating controller maximum ratings storage temperature ................................ ................................ ................... - 65 o c to +1 50 o c supply voltage to ground potential (input & v cc only) ....................... - 0.5v to + 5 .5v supply voltage to ground pote ntial (output s) ................................ .......... - 0.5v to + 5 .5v dc input voltage ................................ ................................ ............................ - 0.5v to + 5 .5v dc output current ................................ ................................ ...... 20 ma power dissipation ................................ ................................ ................................ ......... 500mw recommended operation cond itions symbol pin parameter min typ max unit frequency clk input clk frequency - 50/60 - hz t a - operating temperature - 20 - 85 ac electrical characteristics (v dd = 3 .5 ~ 5.5v, t a = - 20 ~ 85oc, unless otherwise noted) symbol description test conditions min type max unit f clk frequency of clk - - 50/60 - hz t gate width of trigger pulse - 160 200 240 ? clk = 50hz 1.15 1.2 1.25 hour dc electrical characteristics (v dd = 3 .5 ~ 5.5v, t a = - 20 ~ 85oc, unless otherwise noted) symbol description test conditions min type max un it i ih input high current pin: clk v in = v dd - - 1 ? in = v dd - - 100 na pin: ntc2 v in = v dd ,output high impedance - - 100 na i il input low current pin: clk v in = gnd - - - 1 ? in = 0.35v - - - 1 0 ? in = gnd - - - 100 na pin: ntc2 v in = gnd, output high impedance - - - 100 na i oh output hig h current pin: gate v dd = 4.5 v vout = 2.5v - 15 - - m a i ol output low current pin: ntc2 v dd = 4.5 v vout =0.5v 2.0 - - m a pin: gate v dd = 4.5 v vout =0.5v 5.0 - - m a v por voltage of por - 1.5 - 2.5 v v z voltage of zener i dd = 5 00ua ~ 10ma 4.5 5.0 5.5 v i dd current consumption ntc1,clk pin tied to ground v dd = 4.5 v - - 500 ? 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 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 pt02 62 - 1 07/0 6 /12 4 pt 8 a 3290/1/2/3/4/5/6/7 heating controller functional description ? state description ? reset the device will be of reset state after power - on. ? heating on the device will be of heating on state after heating - on button is on ? heating off this device enter heating - off state after its power - on reset or heating timer timeout, and all pins will be the same status as after power - on reset. ? ntc open protection when ntc is open, ntc1 pin will be pulled low in the period of ntc open detected. ? timer once ic enters heating - on state, internal timer start s to count. when time is out after 216000 clock period , it will exit heating - on state. that is , in case of 60hz clk signal, the heat ing time is about 1 hour; and 1.2 hour for 50hz. in heating - on state, temperature is regulated to the selected temperature by the ic through ntc close control loop. ? control signal output when w orking in heating - on state, gate/led output will be related to ntc1 input and clk input amplitude. effect of ntc a nd vt clk (level 2) on gate and led indication workin g state clk input voltage ntc (ntc open detection) ntc (normal temp detection) gate (trigger to scr/triac) led led1 led2 led1 led2 32 9 0/2/4/6 32 9 0/2/4/6 32 9 1/3/5/7 32 9 1/3/5/7 on high for leve l 2 (2 4 0v) v ntco ~ v dd 0 ~ v adc_bit15 proportional output flash1* invert of led1 on off v adc_bit1 4 ~ v adc_bit1 on on on v adc_bit1 ~ v dd 0 on on on low for level 2 (1 2 0v) 0 ~ v adc_bit15 proportional output flash1 on off v adc_bit1 4 ~ v adc_bit1 on on on v adc_bit1 ~ v dd 0 on on on off x* x 0 off off off x x 0~ v ntco x 0 flash2* flash2* off * note : 1) x means any input. 2) flash1 frequency is 1/32 clock. 3) flash2 frequency is 1/8 clock
|||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| 12 - 07 - 0006 pt02 62 - 1 07/0 6 /12 5 pt 8 a 3290/1/2/3/4/5/6/7 heating controller application circuit pt8a 32 90/1/2 /3 application circuit pt8a3294/5/6/7 application circuit
|||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| 12 - 07 - 0006 pt02 62 - 1 07/0 6 /12 6 pt 8 a 3290/1/2/3/4/5/6/7 heating controller mechanical information pe (dip - 8) min max a 3.710 4.310 a1 0.510 a2 3.200 3.600 b 0.380 0.570 b1 c 0.204 0.360 d 9.000 9.400 e 6.200 6.600 e1 7.320 7.920 e l 3.000 3.600 e2 8.400 9.000 symbol 1.524 bsc 2.540 bsc dimensions in millimeters note: 1 ) controlling dimensions in millimeters. 2 ) ref : jedec ms - 001 d/ba
|||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| 12 - 07 - 0006 pt02 62 - 1 07/0 6 /12 7 pt 8 a 3290/1/2/3/4/5/6/7 heating controller we ( soic - 8 ) min max a 1.350 1.750 a1 0.100 0.250 a2 1.350 1.550 b 0.330 0.510 c 0.170 0.250 d 4.700 5.100 e 3.800 4.000 e1 5.800 6.200 e l 0.400 1.270 0 8 symbol dimensions in millimeters 1.27 bsc note: 1) controlling dimensions in millimeters. 2) ref : jedec ms - 012e/aa
|||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| 12 - 07 - 0006 pt02 62 - 1 07/0 6 /12 8 pt 8 a 3290/1/2/3/4/5/6/7 heating controller ordering information part no. package code package pt8a329xpe p lead free 8 - pin dip pt8a329xwe w lead free and green 8 - pin soic note: ? x shows 0~7 with different function see f unction comparison table . ? e = pb - free or pb - free & green ? adding x suffix = tape /r eel f unction comparison table part number led timer switch driver pt8a3290 flash y two key (on + off) triac pt8a 3291 * constant y two key (on + off) triac pt8a3292 * flash n two key (on + off) triac pt8a3293 * constant n two key (on + off) triac pt8a3294 flash y one key (on_off) triac pt8a3295 constant y one key (on_off) triac pt8a3296 * flash n one key (on_off) tr iac pt8a3297 * constant n one key (on_off) triac note: * contact pericom for availability. pericom semiconductor corporation ? 1 - 800 - 435 - 2336 ? www.pericom.com pericom reserves the right t o make changes to its products or specifications at any time, without notice, in order to improve design or performance and t o supply the best possible product. pericom does not assume any responsibility for use of any circuitry described other than the ci rcuitry embodied in pericom product. the company makes no representations that circuitry described herein is free from patent infringement or other rights, of pericom .


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