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RT9511GQW
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Product Detailed Parameters
- Description：IC BATT CHG LI-ION 1CELL 24WQFN
- Series：-
- Mfr：Richtek USA Inc.
- Package：Tape & Reel (TR)
- Battery Chemistry：Lithium Ion
- Voltage - Supply (Max)：12V
- Operating Temperature：-25°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：24-WFQFN Exposed Pad
- Supplier Device Package：24-WQFN (4x4)
- Number of Cells：1
- Current - Charging：Constant - Programmable
- Programmable Features：Timer
- Fault Protection：Over Voltage
- Charge Current - Max：1A
- Battery Pack Voltage：4.2V
- Interface：USB
- Grade：-
- Qualification：-
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Overview
The RT9511GQW is a single-cell lithium-ion/polymer battery charger IC manufactured by Richtek USA Inc. It supports a maximum charging current of 1A and operates with a supply voltage up to 12V. The device features an I2C interface for configuration and monitoring. It includes overvoltage fault protection and is housed in a 24-WFQFN package with exposed pad, measuring 4x4 mm. The component is rated for operation between -25°C and 85°C ambient temperature.
Feature Summary
- Supports programmable constant-current charging via timer control
- Integrates overvoltage fault protection mechanisms
- Enables digital control and status monitoring through I2C interface
Applications
- Portable electronic devices requiring single-cell Li-Ion/Polymer battery management
- Consumer electronics utilizing USB-based charging architectures
- Compact embedded systems with limited board space constraints
Procurement Notes
Verify the specific suffix GQW against the manufacturer's official datasheet to confirm pinout and thermal pad specifications. Ensure compatibility with the target PCB footprint dimensions of 4x4 mm. Confirm that the design accommodates the required MSL 3 moisture sensitivity handling procedures during assembly.
Selection Notes
Select this component when a compact solution for single-cell lithium batteries is required. The I2C interface allows for precise control compared to fixed-timer alternatives. Consider the 1A maximum current limit and 12V input range suitability for the specific power source available in the application design.
Part Context
This part belongs to the Richtek RT9511 series of battery chargers. It is designed specifically for portable applications where size and efficiency are critical. The QW package variant indicates a specific thermal and mechanical form factor within the broader product family.
Replacement Considerations
Consult official cross-reference lists for direct replacements. Verify that any substitute maintains the same 24-WFQFN package and I2C interface compatibility.
