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AP2001N Datasheet(PDF) 1 Page - Anachip Corp |
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AP2001N Datasheet(HTML) 1 Page - Anachip Corp |
1 / 8 page AP2001 Monolithic Dual Channel PWM Controller This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sale of the product. Rev. 0.3 Feb 20, 2004 1/8 Features - Dual PWM Control Circuitry - Operating voltage can be up to 50V - Adjustable Dead Time Control (DTC) - Under voltage Lockout (UVLO) Protection - Short Circuit Protection (SCP) - Variable Oscillator Frequency...... 500Khz Max - 2.5V voltage reference Output - 16-pin PDIP and SOP packages Applications - Backlight inverter - DC/DC converts in computers, etc. General Description The AP2001 integrates Pulse-width-Modulation (PWM) control circuit into a single chip, mainly designs for power-supply regulator. All the functions included an on-chip 2.5V reference output, two error amplifiers, an adjustable oscillator, two dead-time comparators, UVLO, SCP, DTC circuitry, and dual common-emitter(CE) output transistor circuit. Recommend the output CE transistors as pre-driver for Driving externally. The DTC can provide from 0% to 100%. Switching frequency can be adjustable by trimming RT and CT. During low VCC situation, the UVLO makes sure that the outputs are off until the internal circuit is operational normally. Pin Assignments 1 2 3 15 14 13 12 11 10 9 8 7 6 5 4 16 CT EA2+ EA2- FB2 DTC2 OUT2 VCC GND OUT1 DTC1 FB1 EA1+ RT REF SCP EA1- ( Top View ) PDIP/SOP Pin Descriptions Name Description CT Timing Capacitor RT Timing Resistor EA+ Error Amplifier Input(+) EA - Error Amplifier Input(-) FB Feedback Loop Compensation DTC Dead Time Control OUT Pre-driver Output GND Ground VCC Supply Voltage SCP Short Circuit Protection REF Voltage Reference |
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