MAX5977B

PRODUCTION

1V to 16V, Single-Channel, Hot-Swap Controllers with Precision Current-Sensing Output

1V to 16V, Hot-Swap Controller with Precision Current-Sense Output

Data Sheet (Rev. 3) Product Selection Table

Part Models: 2
1ku List Price: Starting From $2.90

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Part Details

1% Accurate Current-Sense Amplifier Output
Hot-Swap Monitors Operation from 1V to 16V
Integrated Charge Pump Fully Enhances the External n-Channel FET (V_GATE = V_IN + 5V)
VariableSpeed/BiLevel™ Fault Protection Provides Electronic Circuit-Breaker Function
Output Latched Off After Fault Condition (MAX5977A)
Autoretry After Fault Condition (MAX5977B)
Power-Good Indicator
Calibration Mode
Small, 20-Pin, 4mm x 4mm, TQFN-EP Package

Part Models: 2
1ku List Price: Starting From $2.90

Documentation

Data Sheet 1

MAX5977A-MAX5977B: 1V to 16V, Single-Channel, Hot-Swap Controllers with Precision Current-Sensing Output Data Sheet (Rev.3) 02/14/2018

Application Note 1

Guidelines for the MAX5977’s Critical Component Placement and Routing 08/25/2014

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
MAX5977BETP+	20-LFCSP-4X4X0.75	Material Declaration Reliablity Data	Ultra Librarian SamacSys
MAX5977BETP+T	20-LFCSP-4X4X0.75	Material Declaration Reliablity Data	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Jun 20, 2016 - 1612 ASSEMBLY
		pcn_1612
MAX5977BETP+	PRODUCTION	pcn_1612

This is the most up-to-date revision of the Data Sheet.

Evaluation Kits

Evaluation Kit for the MAX5977A and MAX5977B

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Features and Benefits

1V to 16V Input Range
Demonstrates Latched-Fault Output
Configurable Input Undervoltage (9V) and Overvoltage (15V) Thresholds
Output Current Up to 40A
Configurable Slow and Fast Current-Limit Thresholds
Precision Current Monitoring
Calibration Mode
Selectable Digital Voltage Supply (VIO)
Active-Low FAULT and Power-Good LED Indicators
Buffered Current-Sense Amplifier Output Drives External Circuitry
Evaluates MAX5977A Latched-Off Version
Evaluates MAX5977B Autoretry Version After IC Replacement
Surface-Mount Components
Proven PCB Layout
Fully Assembled and Tested

Product Details

The MAX5977A EV kit is a hot-swap controller circuit board providing a controlled turn-on for high-power, high-capacitance loads, thus preventing glitches on the power-supply rail. The circuit uses a latching MAX5977A hot-swap controller IC in a 20-pin TQFN surface-mount package with an exposed pad. The EV kit operates from a 1V to 16V input source range connected at the VIN and GND connectors.

The IC controls two n-channel MOSFETs that deliver up to 40A of output current. The EV kit circuit ensures that the output voltage is stable and within the undervoltage (UV) and overvoltage (OV) thresholds. The circuit continually monitors load current to ensure that it does not exceed the circuit programmable fast and slow current-limit thresholds. The EV kit circuit provides a buffered output of the IC's current-sense amplifier and includes a precision current source providing a 2.5V output when enabling the IC's calibration-mode function.

The EV kit can also be used to evaluate the MAX5977B autoretry hot-swap controller after IC replacement of U1.

Applications

General Hot-Swap
Network Switches and Routers
Servers
Storage Systems

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