General Description

The MAX16050 monitors up to 5 voltages and sequences up to 4 voltages, while the MAX16051 monitors up to 6 voltages and sequences up to 5 voltages. These devices provide an adjustable delay as each supply is turned on and they monitor each power-supply voltage, including the input voltage VCC. When all of the voltages reach their final values and the reset delay timer expires, a power-on-reset (RESET) output deasserts allowing the microcontroller (μC) to operate. If any voltage falls below its threshold, the reset output asserts and all voltage supplies are turned off. The MAX16050/MAX16051 can be daisy-chained to control a higher number of voltages in a system.

Features

● Monitor Up to 6 Voltages/Sequence Up to 5 Voltages (MAX16051)

● Pin-Selectable Sequencing Order (MAX16050 Only)

● Reverse-Sequencing Capability on Shutdown

● Overvoltage Monitoring with Independent Output

● ±1.5 Threshold Accuracy

● 2.7V to 16V Operating Voltage Range

● Charge Pump to Fully Enhance External n-Channel FETs

● Capacitor-Adjustable Sequencing Delay

● Fixed or Capacitor-Adjustable Reset Timeout

● Internal 85mA Pulldowns for Discharging Capacitive Loads Quickly

● Daisy-Chaining Capability to Communicate Across Multiple Devices

● Small 4mm x 4mm, 28-Pin TQFN Package

Applications

● Servers

● Workstations

● Networking Systems

● Telecom Equipment

● Storage Systems