AD5100

系统管理IC与可编程四电压监视和监控功能 System-Management IC with Programmable Quad Voltage Monitoring and Supervisory Functions

Product Details

The is a programmable system-management IC that combines four channels of voltage monitoring and a watchdog supervision that 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 the faulty condition of 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 7.96V. input. Most monitoring input thresholds and timing settings can be programmed on the fly or permanently set in the factory with the OTP feature.

The AD5100 is versatile for system-monitoring applications where critical microprocessor, DSP, and embedded systems operate under harsh conditions such as automotive, industrial or communications network environments.

The AD5100 is available in a compact QSOP-16 package and can operate in an extended automotive temperature range from −40°C to +125°C.

**Applications**

* Automotive systems

* Network equipment

* Computers, controllers, and embedded systems

Data Sheet, Rev. 0, 10/08

### Features and Benefits

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2 device-enabling outputs with 6 programmable monitoring

Inputs See Table 1 on data sheet

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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

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5 V and 7.96 V monitoring inputs with reset control of external devices

Programmable reset thresholds and hold time

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eMOST-compatible inputs

Diagnostic application using V2MON and V4MON

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Two supervisory functions

Watchdog reset controller with programmable timeout and selectable floating input

Manual reset control for external devices

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Digital interface and programmability

I2C-compatible interface

OTP for permanent threshold and timing settings

OTP can be overwritten for dynamic adjustments

Power-up by edge triggered signal

Power-down over I2C bus

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Additional Features found on the data sheet

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