uc3827 is a push-pull pwm controller for cascaded buck and push-pull converters from ti. it can operate up to 500 khz and support up to 500v output voltage and 5a output current
This document describes the UC3827 family of controller devices, which includes the UC1827-1 (Current Fed), UC1827-2 (Voltage Fed), UC2827-1, UC2827-2, UC3827-1, and UC3827-2 models. These devices provide an integrated control solution for cascaded buck and push-pull converters, known as current fed or voltage fed push-pull converters, ideally suited for multiple output and/or high voltage output applications.
| Maximum Oscillator Frequency | 500 kHz |
|---|---|
| Input Voltage Range (V+ and BUCK) | 90 V |
| Supply Voltage (VCC) | 20 V |
| BUCK Driver I/O Peak Current | ± 1 A |
| PUSH/PULL Driver I/O Peak Current | ± 0.8 A |
| Storage Temperature Range | -65 to 150 °C |
| Junction Temperature Range | -55 to 150 °C |
The controllers support operation up to 500 kHz.
The maximum supply voltage for the VCC pin is 20 V.
The BUCK driver I/O can handle a peak current of ± 1 A.