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2022-09-24 23:33:15
AP2001-Single-chip dual-channel PWM controller
Features
- Dual PWM control circuit
- Operating voltage up to 50V
- Adjustable Dead Time Control (DTC)
- Under Voltage Lockout (UVLO) Protection
- Short Circuit Protection (SCP)
- Variable oscillator frequency...500KHz max
- 2.5V reference voltage output
- 16-pin PDIP and SOP packages
AP2001 integrates Pulse Width Modulation (PWM) into a single chip control circuit, the main power regulator design. All features include an on-chip 2.5V reference output, two error amplifiers, adjustable oscillator, two dead-time comparators, undervoltage lockout, SCP's, DTC circuits, and dual output transistor common emitter (CE) circuit. It is recommended that the CE be used as a pre-driver for external driving of the output transistor. DTC's can be provided from 0% to 100%. The switching frequency can be adjusted by fine-tuning RT and CT. In low voltage conditions, UVLO ensures that the output is turned off until the internal circuitry is functioning properly.