GENERAL DESCRIPTION

The AD5100 is a programmable system-management IC that combines 4-channel of voltage monitoring and a watchdog supervision that can be used to shutdown external supplies, reset processors, or disable any other system electronics when the systems malfunction. The AD5100 can also be used to protect system under faulty condition of improper devices power up sequencing. The AD5100 can monitor two 30V inputs with shutdown and reset controls, one 2.5V-5.0V and one 0.9V-3.3V monitoring inputs with reset control, a robust watchdog reset controller. Most monitoring input thresholds and timing settings can be programmed on the fly or permanently set in the factory with the OTP feature.

FEATURES

• Two Device-Enabling Outputs with Six Programmable Monitoring Inputs (Table 1)

o Two 30V Monitoring Inputs with Shutdown Control of External Devices:

◾ Programmable Over-voltage, Under-voltage, Turn-on, Turn-off Thresholds, and Shutdown timings

◾ Shutdown Warning with Fault Detection

o Two 5V Monitoring Inputs with Reset Control of External Devices:

◾ Programmable Reset Thresholds and Hold Time

o Two Supervisory Functions:

◾ Watchdog Reset Controller with Programmable Timeout and Selectable Floating Input

◾ Manual Reset Control for External Devices

• Digital Interface and Programmability:

o I2C® Compatible Interface

o OTP1 for Permanent Threshold and Timing Settings

o OTP Overwritten Capable for Dynamic Adjustments

o Power Up by Edge Triggered Signal

o Power Down by I2C Software

• Operating Range:

o Supply Voltage 6.0V to 30V

o Temp Range -40°C to +125°C

o Low Shutdown Current: 10μA

• High-Voltage-Input Anti-migration Shielding Pinouts

APPLICATIONS

• Automotive Systems

• Network Equipment

• Computers, Controllers, and Embedded Systems