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Smart, Compact, 6A, Power-Path Selector with Reset Control

Provides the system power from two separate power sources with ultra-low supply current

Product Details

The MAX14740/MAX14742/MAX20320 compact 6A smart power-path selector with reset control features a low 11mΩ (typ) RON internal FET and provides the system power from two separate power sources. The devices feature reset and disconnect functions to provide system power, reset, and disconnect based on multiple inputs, including active-low MR1, active-low MR2, and TAIN.

The devices feature two individual enable inputs to control each power path. The MAX14740 enable function is provided through I2C control, while those of the MAX14741/MAX14742/MAX20320 are performed by GPIO control. Each enable input controls the corresponding path as an independent switch. However, when both paths are enabled, the device can either autoselect the input source or have both inputs connected to the output. When autoselect is chosen, the internal comparator controls the path based on the voltage at the input nodes. The devices also feature an ultra-low supply current, even during an operating state or off state, providing longer battery life.

The devices are available in 20-bump (1.6mm × 2.1mm) wafer-level packages (WLPs) and operate over the -40°C to +85°C extended temperature range.

Key Features

  • Provides Robust Bidirectional Power Path
    • Wide Operating Input Voltage: +1.6V to +5.5V
    • 6A Continuous-Current Capability
    • Two Integrated 11mΩ (typ) MOSFET Switches
  • Flexible System Design with Battery Connect, Reset, and Disconnect
    • I2C Control: MAX14740
    • Programmable Connect Time
    • Programmable Reset Setup Time
    • Programmable Reset Pulse Length
    • Programmable Disconnect Setup Time
    • Programmable Comparator Hysteresis
    • Programmable Input Autoselect
  • GPIO Control: MAX14741/MAX14742/MAX20320
    • Programmable Comparator Hysteresis
    • Programmable Input Autoselect
  • Long Battery Life
    • Ultra-Low Quiescent Supply Current 7.5µA (typ)
    • Fast Switchover
    • Optimum Soft-Start Feature

Applications/Uses

  • Cameras
  • Game Console
  • Smart Phones
  • Tablet PCs
Parametric specs for Overvoltage Protection Controllers
# Channels 1
2
VIN (V) (min) -0.3
VIN (V) (max) 5.5
VGATE (V) 5.75
Oper. Temp. (°C) -45 to +85
Package/Pins WLP/20
Budgetary
Price (See Notes)
$0.84 @1k
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Technical Docs

Design & Development

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Description

The MAX14741/MAX14742 evaluation kit (EV kit) is a fully assembled and tested circuit board that demonstrates the MAX14741/MAX14742 smart power-path selector with reset control devices. The EV kit comes with the MAX14741EWP+ or MAX14742EWP+ installed. Please indicate the part number when ordering. To evaluate MAX14740, contact Maxim for further information.

View Details

Features

  • 1.6V to 5.5V Operating Voltage Range
  • Input Power LED Reading
  • Proven PCB Layout
  • Fully Assembled and Tested

Description

The MAX14741/MAX14742 evaluation kit (EV kit) is a fully assembled and tested circuit board that demonstrates the MAX14741/MAX14742 smart power-path selector with reset control devices. The EV kit comes with the MAX14741EWP+ or MAX14742EWP+ installed. Please indicate the part number when ordering. To evaluate MAX14740, contact Maxim for further information.

View Details

Features

  • 1.6V to 5.5V Operating Voltage Range
  • Input Power LED Reading
  • Proven PCB Layout
  • Fully Assembled and Tested

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Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal

Parameters

Parametric specs for Overvoltage Protection Controllers
# Channels 1
2
VIN (V) (min) -0.3
VIN (V) (max) 5.5
VGATE (V) 5.75
Oper. Temp. (°C) -45 to +85
Package/Pins WLP/20
Budgetary
Price (See Notes)
$0.84 @1k

Key Features

  • Provides Robust Bidirectional Power Path
    • Wide Operating Input Voltage: +1.6V to +5.5V
    • 6A Continuous-Current Capability
    • Two Integrated 11mΩ (typ) MOSFET Switches
  • Flexible System Design with Battery Connect, Reset, and Disconnect
    • I2C Control: MAX14740
    • Programmable Connect Time
    • Programmable Reset Setup Time
    • Programmable Reset Pulse Length
    • Programmable Disconnect Setup Time
    • Programmable Comparator Hysteresis
    • Programmable Input Autoselect
  • GPIO Control: MAX14741/MAX14742/MAX20320
    • Programmable Comparator Hysteresis
    • Programmable Input Autoselect
  • Long Battery Life
    • Ultra-Low Quiescent Supply Current 7.5µA (typ)
    • Fast Switchover
    • Optimum Soft-Start Feature

Applications/Uses

  • Cameras
  • Game Console
  • Smart Phones
  • Tablet PCs

Description

The MAX14740/MAX14742/MAX20320 compact 6A smart power-path selector with reset control features a low 11mΩ (typ) RON internal FET and provides the system power from two separate power sources. The devices feature reset and disconnect functions to provide system power, reset, and disconnect based on multiple inputs, including active-low MR1, active-low MR2, and TAIN.

The devices feature two individual enable inputs to control each power path. The MAX14740 enable function is provided through I2C control, while those of the MAX14741/MAX14742/MAX20320 are performed by GPIO control. Each enable input controls the corresponding path as an independent switch. However, when both paths are enabled, the device can either autoselect the input source or have both inputs connected to the output. When autoselect is chosen, the internal comparator controls the path based on the voltage at the input nodes. The devices also feature an ultra-low supply current, even during an operating state or off state, providing longer battery life.

The devices are available in 20-bump (1.6mm × 2.1mm) wafer-level packages (WLPs) and operate over the -40°C to +85°C extended temperature range.

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal