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