DESCRIPTION

· The MAX16065/MAX16066 are flash-configurable system managers designed to monitor and sequence multiple system voltages.

· They feature a dedicated high-side current-sense amplifier for accurate current monitoring (±2.5%).

· The MAX16065 manages up to twelve system voltages, while the MAX16066 handles up to eight.

· These devices include a selectable differential or single-ended ADC and configurable outputs for power supply sequencing.

· Configuration data, including overvoltage and undervoltage limits, timing settings, and sequencing order, is stored in nonvolatile flash memory.

· Fault flags and channel voltages are automatically stored in nonvolatile memory during fault conditions.

· The internal 1% accurate 10-bit ADC measures inputs and compares them to configurable limits, asserting a fault signal when limits are exceeded.

· Up to three independent fault output signals can be configured to assert under various fault conditions.

· The devices support a power-supply voltage of up to 14V, allowing direct powering from a 12V intermediate bus.

· An integrated sequencer provides precise control over the power-up and power-down order of power supplies.

· Eight outputs (EN_OUT1–EN_OUT8) are configurable with charge-pump outputs to drive external n-channel MOSFETs.

· The MAX16065/MAX16066 include eight/six programmable GPIOs, configurable as dedicated fault outputs, watchdog input/output, or manual reset.

· Nonvolatile fault memory records information during system shutdown events, with a lock bit protecting stored data.

· Configuration is done via SMBus or JTAG serial interface.

· The MAX16065 is available in a 48-pin TQFN package, and the MAX16066 in a 40-pin TQFN package, both operating from -40°C to +85°C.

FEATURES

· Operates 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 limits.

· Nonvolatile fault event logger.

· Power-up and power-down sequencing capability.

· Independent secondary sequence block.

· 12/8 outputs for sequencing/power-good indicators.

· Two programmable fault outputs and one reset output.

· Eight general-purpose inputs/outputs configurable as dedicated fault outputs, watchdog timer function, manual reset, or margin enable.

· SMBus (with timeout) or JTAG interface.

· Flash-configurable time delays and thresholds.

· Operating temperature range from -40°C to +85°C.

APPLICATIONS

· Networking equipment.

· Telecom equipment (base stations, access).

· Storage/RAID systems.

· Servers.