Data Sheet
FEATURES
Integrates all typical controller functions Digital control loop Remote and local voltage sense Prim...
Data Sheet
FEATURES
Integrates all typical controller functions Digital control loop Remote and local
voltage sense Primary and secondary side current sense PWM control Synchronous rectifier control Current sharing Integrated programmable loop filter
I2C interface Extensive fault detection and protection Extensive programming Fast calibration EEPROM Standalone or microcontroller control
APPLICATIONS
AC-to-DC power supplies Isolated dc-to-dc power supplies Redundant power supplies Parallel power supplies Server, storage, network, and communications infrastructure
Digital Controller for Isolated
Power Supply Applications
ADP1043A
GENERAL DESCRIPTION
The ADP1043A is a secondary side power supply controller IC designed to provide all the functions that are typically needed in an ac-to-dc or isolated dc-to-dc control application.
The ADP1043A is optimized for minimal component count, maximum flexibility, and minimum design time. Features include remote
voltage sense, local
voltage sense, primary and secondary side current sense, pulse-width modulation (PWM) generation, and hot-swap sense and control. The control loop is digital with an integrated programmable digital filter. Protection features include current limiting, ac sense, under
voltage lockout (UVLO), and over
voltage protection (OVP).
The built-in EEPROM provides extensive programming of the integrated loop filter, PWM signal timing, inrush current, and soft start timing and sequencing. Reliability is improved through a bu...