RT5037GQW

$3.78

Description：IC BATT CHG LI-ION 1CELL 40WQFN
Series：-
Mfr：Richtek USA Inc.
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:681c0bd2615a Category: Battery Chargers Brand: Richtek USA Inc.

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Product introduction

Product Detailed Parameters

Description：IC BATT CHG LI-ION 1CELL 40WQFN
Series：-
Mfr：Richtek USA Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
Battery Chemistry：Lithium Ion/Polymer
Voltage - Supply (Max)：5.5V
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：40-WFQFN Exposed Pad
Supplier Device Package：40-WQFN (5x5)
Number of Cells：1
Current - Charging：Constant - Programmable
Programmable Features：Timer
Fault Protection：Over Current, Over Temperature, Over Voltage
Charge Current - Max：2A
Battery Pack Voltage：4.44V (Max)
Interface：I2C
Grade：-
Qualification：-

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RT5037GQW

Overview

The RT5037GQW is a single-cell lithium-ion/polymer battery charger IC manufactured by Richtek USA Inc. It supports a maximum charging current of 2A and operates with a supply voltage up to 5.5V. The device features an I2C interface for programmability and includes built-in timer, overcurrent, overtemperature, and overvoltage fault protections. It is housed in a 40-WQFN (5x5) package with exposed pad and functions within a temperature range of -40°C to 85°C.

Feature Summary

I2C programmable interface for configuration control
Integrated safety protections including overcurrent, overtemperature, and overvoltage
Supports constant-current charging with programmable timer termination

Applications

Single-cell lithium-ion battery charging systems
Portable electronic devices requiring compact power management
Battery-powered consumer electronics

Procurement Notes

Verify the specific suffix (GQW) against the manufacturer's datasheet to confirm pinout and thermal specifications. Ensure compatibility with I2C bus voltage levels used in the target system. Confirm RoHS3 compliance status if required by regulatory standards. Check moisture sensitivity level (MSL 3) handling requirements during assembly.

Selection Notes

Select this component for applications requiring a small footprint single-cell charger with digital control capabilities. The 40-WQFN package offers thermal performance suitable for high-current charging. Verify that the host system can support I2C communication for optimal configuration flexibility.

Part Context

This part belongs to the RT5037 family of battery chargers from Richtek. It is designed for portable applications where space and efficiency are critical. The GQW suffix indicates the specific package type and temperature grade.

Replacement Considerations

Check for direct pin-to-pin replacements within the RT5037 series or other Richtek single-cell chargers with I2C interfaces. Verify electrical parameters such as max current and input voltage match the design requirements before substitution.