This product is a pulse width modulator integrated circuit with 8-V to 35-V operating range, 5.1-V reference voltage, 100-Hz to 500-kHz oscillator range, adjustable deadtime control, internal soft-start, pulse-by-pulse shutdown, input undervoltage lockout and dual source/sink output drivers.
This document is a datasheet for the UC1525A, UC1527A, UC2525A, UC2527A, UC3525A, and UC3527A series of regulating pulse width modulator integrated circuits. These devices are designed to offer improved performance and a lowered external parts count for switching power supplies. Key features include an 8-V to 35-V operation range, a 5.1-V reference trimmed to 1%, a 100-Hz to 500-kHz oscillator range, adjustable deadtime control, and internal soft-start circuitry.
| Operating Voltage Range | 8 V to 35 V |
|---|---|
| Reference Voltage | 5.1 V |
| Oscillator Frequency Range | 100 Hz to 500 kHz |
| Output Current (Source or Sink) | 200 mA |
| Operating Junction Temperature | -55 to 150 C |
| Power Dissipation (Ta = +25C) | 1000 mW |
The reference output voltage is typically 5.1 V.
The maximum duty cycle is 49%.
The minimum oscillator frequency is 120 Hz.