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. When all of the voltages reach their final values and the reset delay timer expires, a power-on-reset (POR) 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
♦ Pin-Selectable Sequencing Order (MAX16050 Only)
♦ Reverse-Sequencing Capability on Shutdown
♦ Overvoltage Monitoring with Independent Output
♦ ±1.5% Threshold Accuracy
♦ 2.7V to 13.2V 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