AD5100YRQZ

GENERAL DESCRIPTION

The AD5100 is a programmable system management IC that combines four channels of voltage monitoring and watchdog supervision. The AD5100 can be used to shut down external supplies, reset processors, or disable any other system electronics when the system malfunctions. The AD5100 can also be used to protect systems from improper device power-up sequencing. The AD5100, a robust watchdog reset controller, can monitor two 30 V inputs with shutdown and reset controls, one 2.3 V to 5.0 V input, and one 1.6 V to 7.96 V input. Most monitoring input thresholds and timing settings can be programmed on-the-fly or permanently set with the OTP memory feature.

FEATURES

2 device-enabling outputs with 6 programmable monitoring
inputs (see Table 1)
Two 30 V monitoring inputs with shutdown control of
external devices
Programmable overvoltage, undervoltage, turn-on and
turn-off thresholds, and shutdown timings
Shutdown warning with fault detection
Reset control of external devices
5 V and 7.96 V monitoring inputs with reset control of
external devices
Programmable reset thresholds and hold time
eMOST-compatible inputs
Diagnostic application using V2MON and V4MON
Two supervisory functions
Watchdog reset controller with programmable timeout
and selectable floating input
Manual reset control for external devices
Digital interface and programmability
I2C-compatible interface
OTP1 for permanent threshold and timing settings
OTP can be overwritten for dynamic adjustments
Power-up by edge triggered signal
Power-down over I2C bus
Operating range
Supply voltage: 6.0 V to 30 V
Temperature range: −40°C to +125°C
Shutdown current: 5 μA max
Operating current: 2 mA max
High voltage input antimigration shielding pinouts

APPLICATIONS

Automotive systems
Network equipment
Computers, controllers, and embedded systems