Description

The MAX16055GAUB+ is an electronic component model in the supervisors product category. It is a device that monitors multiple voltages and sequences their turn on/off in a system. It provides an adjustable delay for each supply and monitors the voltage levels. When all the voltages reach their final values and the reset delay timer expires, a power-on-reset (POR) output is deasserted, 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 MAX16055GAUB+ can also be daisy-chained to control a higher number of voltages in a system.

Specifications and features

The MAX16055GAUB+ offers the following specifications and 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

Application Scenarios

The MAX16055GAUB+ is commonly used in the following application scenarios:

• Servers
• Workstations
• Networking Systems
• Telecom Equipment
• Storage Systems

Comparison

Advantages:
- Monitors multiple voltages and sequences their turn on/off
- Adjustable delay for each supply
- Daisy-chaining capability to control a higher number of voltages
- Overvoltage monitoring with independent output
- Threshold accuracy of ±1.5%
- Can enhance external n-Channel FETs through charge pump
- Small and compact package

Disadvantages:
- Not suitable for applications requiring more than 6 monitored voltages or sequencing of more than 5 voltages.