The ADM1169 is a super sequencer with margining control and nonvolatile fault recording. It provides a complete supervisory and sequencing solution for up to 8 supplies. The ADM1169 offers 16-event deep black box nonvolatile fault recording for detecting power supply faults such as overvoltage, undervoltage, overcurrent, and thermal fault. The ADM1169 also features 4 selectable input attenuators for monitoring voltages up to 14.4 V and 4 dual-function inputs for monitoring voltage, current, or temperature. The ADM1169 also provides 8 programmable driver outputs for driving power supplies, loads, or other circuits.
The ADM1169 Super Sequencer is a single‑chip supervisory and sequencing device that monitors up to eight power supplies with <0.5 % accuracy. It includes a 12‑bit ADC, four 8‑bit DACs for closed‑loop margining, a 16‑event non‑volatile fault recorder, and programmable driver outputs that can drive NFET gates.
The device is controlled via an SMBus interface and can be configured through an on‑chip EEPROM (256 bytes). It is offered in 32‑lead LQFP and 40‑lead LFCSP packages and is intended for use in central office systems, servers/routers, and multivoltage line cards.
| Supply Voltage Range (VH) | 3.0 V to 14.4 V |
|---|---|
| Supply Voltage Range (VPx) | 3.0 V to 6.0 V |
| Operating Temperature | -40 °C to +85 °C |
| Supply Current (VH, IVPx) | 4.2 mA typical |
| ADC Resolution | 12 bits |
| DAC Resolution | 8 bits |
| User EEPROM Size | 256 bytes |
| Maximum Output Voltage (High‑Voltage mode) | up to 14 V |
It can supervise up to eight supplies.
The ADC has a 12‑bit resolution.
The ADM1169 includes a 256‑byte EEPROM for user data and configuration.