The ADM1041A is a secondary-side controller with current share and housekeeping. It features digital calibration, support for SSI specification, comprehensive fault detection, reduced component count on secondary side, standalone or microcontroller control, and more.
The ADM1041A is a secondary‑side controller IC designed for voltage control, current sharing, and housekeeping functions in single‑output server power supplies. It integrates digital calibration, fault detection, and an SMBus (I2C‑compatible) interface for microcontroller communication.
The document provides a general description, application circuit, full specifications, pin configuration, register listings, and ordering information, along with notes on protection features such as over‑/undervoltage, overcurrent, overtemperature, and reverse‑voltage detection.
| Supply Voltage (VDD) | 5 V ±10% |
|---|---|
| Typical Supply Current (IDD) | 10 mA |
| Operating Temperature Range | -40 °C to +85 °C |
| EEPROM Size | 352‑byte EEPROM |
| SMBus Interface | I2C‑compatible |
Programming is done via an SMBus serial port that is compatible with I²C.
The typical supply current is 10 mA.