Simplified Block Diagram
- Operate from 2.8V to 14V
- ±2.5% Current-Monitoring Accuracy
- 1% Accurate 10-Bit ADC Monitors 12/8 Voltage Inputs
- Single-Ended or Differential ADC for System Voltage/Current Monitoring
- Integrated High-Side, Current-Sense Amplifier
- 12/8 Monitored Inputs with Overvoltage/Undervoltage/Early Warning Limit
- Nonvolatile Fault Event Logger
- Two Programmable Fault Outputs and One Reset Output
- Eight General-Purpose Inputs/Outputs Configurable as:
- Dedicated Fault Outputs
- Watchdog Timer Function
- Manual Reset
- Margin Enable
- SMBus (with Timeout) or JTAG Interface
- Flash Configurable Time Delays and Thresholds
- -40°C to +85°C Operating Temperature Range
- Networking Equipment
- Storage/RAID Systems
- Telecom Equipment (Base Stations, Access)
The internal 1% accurate 10-bit ADC measures each input and compares the result to one overvoltage, one undervoltage, and one early warning limit that can be configured as either undervoltage or overvoltage. A fault signal asserts when a monitored voltage falls outside the set limits. Up to three independent fault output signals are configurable to assert under various fault conditions.
Because the MAX16070/MAX16071 support a power-supply voltage of up to 14V, they can be powered directly from the 12V intermediate bus in many systems.
The MAX16070/MAX16071 include eight/six programmable general-purpose inputs/outputs (GPIOs). GPIOs are flash configurable as dedicated fault outputs, as a watchdog input or output, or as a manual reset.
The MAX16070/MAX16071 feature nonvolatile fault memory for recording information during system shutdown events. The fault logger records a failure in the internal flash and sets a lock bit protecting the stored fault data from accidental erasure. An SMBus™ or a JTAG serial interface configures the MAX16070/MAX16071. The MAX16070/MAX16071 are available in a 40-pin, 6mm x 6mm, TQFN package. Both devices are fully specified from -40°C to +85°C.