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RT9519AGQW
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Product Detailed Parameters
- Description：IC BATT CHG LI-ION 1CELL 20WQFN
- Series：-
- Mfr：Richtek USA Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Battery Chemistry：Lithium Ion
- Voltage - Supply (Max)：6V
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：20-WFQFN Exposed Pad
- Supplier Device Package：20-WQFN (3x3)
- Number of Cells：1
- Current - Charging：Constant - Programmable
- Programmable Features：Timer
- Fault Protection：Over Voltage
- Charge Current - Max：1.2A
- Battery Pack Voltage：4.2V
- Interface：-
- Grade：-
- Qualification：-
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Overview
The RT9519AGQW is a single-cell lithium-ion battery charger IC manufactured by Richtek USA Inc. It operates within a supply voltage range of up to 6V and supports a maximum programmable charging current of 1.2A. Designed for a 4.2V battery system, the device utilizes a 20-WQFN (3x3) package with exposed pad for surface mount installation. It functions across an operating temperature range of -40°C to 85°C TA.
Feature Summary
- Supports constant-current/constant-voltage charging profiles for single-cell lithium-ion batteries
- Features programmable charge timer for safety monitoring
- Includes overvoltage fault protection mechanisms
Applications
- Portable consumer electronics requiring single-cell Li-ion power management
- Handheld devices utilizing compact surface-mount power solutions
- IoT modules with limited space constraints
Procurement Notes
Verify the specific suffix 'GQW' against the manufacturer's latest datasheet to confirm pinout and thermal pad configuration. Ensure compatibility with the target PCB footprint for the 20-WQFN package. Confirm RoHS3 compliance status if required by regional regulations before finalizing procurement orders.
Selection Notes
Select this component when designing systems requiring a compact, single-cell Li-ion charging solution with integrated timer safety features. The 1.2A current capability suits low-to-moderate power portable applications. Consider the 20-WQFN package size relative to available board space and thermal dissipation requirements for the specific enclosure design.
Part Context
This part belongs to the RT9519 family of battery chargers from Richtek USA Inc. It is categorized under Power Management ICs (PMIC) specifically for battery charging applications. The device is designed to replace older discrete charging solutions in modern portable electronic designs requiring high integration.
Replacement Considerations
The RT9519BGQW is documented as a parameter-equivalent substitute. Verify functional equivalence through official cross-reference documentation before implementation.
