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PT8A3285WE Datasheet(PDF) 1 Page - Pericom Semiconductor Corporation |
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PT8A3285WE Datasheet(HTML) 1 Page - Pericom Semiconductor Corporation |
1 / 8 page |||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Heating Controller 12-07-0006 PT0261-1 07/06/12 1 PT8A3280/1/2/3/4/5/6/7 Features Dual Voltage (120V/240V) 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 timeout Low cost 8-Pin DIP and SOIC package Applications Curler Straightener Description The PT8A3280/1/2/3/4/5/6/7 is a mixed signal CMOS LSI chip designed as heating controller with help of external NTC (Negative Temperature Component). NTC open protection is implemented for device safety. This device can be used in both 120V and 240V 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 proportional control algorithm is designed in this product. Pin Configuration 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 Pin Description Pin No. Pin Name I/O Description 1 NTC1 I NTC voltage input, NTC open detection input 2 NTC2 O Output signal for NTC open detection 3 CLK I Clock input from power line 4 GND Power Ground and Power 5 LED1 I/O 3280/1/2/3/4/5/6/7: LED1 driving output 6 GATE O 3280/1/2/3: SCR trigger output 3284/5/6/7: TRIAC trigger output 7 LED2 I/O 3280/1/2/3/4/5/6/7: LED2 driving output 8 VDD Power Ground and Power |
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