MAX16070

19-5003; Rev 0; 10/09 12-Channel/8-Channel, Flash-Configurable System Monitors with Nonvolatile Fault Registers General Description The MAX16070/MAX16071 flash-configurable system monitors supervise multiple system voltages. The MAX16070/MAX16071 can also accurately monitor (Q2.5%) one current channel using a dedicated highside current-sense amplifier. The MAX16070 monitors up to twelve system voltages simultaneously, and the MAX16071 monitors up to eight supply voltages. These devices integrate a selectable differential or single-ended analog-to-digital converter (ADC). Device configuration information, including overvoltage and undervoltage limits and timing settings are stored in nonvolatile flash memory. During a fault condition, fault flags and channel voltages can be automatically stored in the nonvolatile flash memory for later read-back. 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 powersupply 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 ar...