— IC芯片 | 连接器 | 传感器 | 被动器件 —
Product Detailed Parameters
- Description:IC LI-ION BATT CHGR WQFN-28
- 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:28-WFQFN Exposed Pad
- Supplier Device Package:28-WQFN (4x4)
- Number of Cells:1
- Current - Charging:Constant - Programmable
- Programmable Features:Current
- Fault Protection:Over Temperature, Over Voltage
- Charge Current - Max:1.2A
- Battery Pack Voltage:4.2V
- Interface:I2C
- Grade:-
- Qualification:-
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Overview
The RT9528GQW is a lithium-ion battery charger integrated circuit manufactured by Richtek USA Inc. It supports a single-cell lithium-ion or lithium-polymer battery chemistry and delivers a programmable constant charging current of up to 1.2A. The device operates within an ambient temperature range of -40°C to 85°C. It is housed in a compact 28-WQFN (4x4 mm) surface-mount package, designed for efficient power management in portable electronic applications requiring reliable single-cell charging capabilities.
Feature Summary
- Supports lithium-ion and lithium-polymer battery chemistries
- Provides programmable constant charging current output
- Operates across extended industrial temperature ranges
Applications
- Portable consumer electronics
- Single-cell battery powered devices
- Industrial control systems with battery backup
Procurement Notes
Verify the specific suffix codes against official Richtek documentation to ensure correct packaging and temperature grade specifications. Confirm RoHS compliance status and lead-free manufacturing details through authorized distributors. Ensure the procurement source provides valid traceability for active component batches.
Selection Notes
Select this component for applications requiring a dedicated single-cell lithium-ion charger with a maximum current rating of 1.2A. The 28-WQFN package is suitable for space-constrained designs. Verify that the system thermal environment remains within the specified -40°C to 85°C operating range for optimal performance.
Part Context
This part belongs to the Richtek battery charger product line, specifically targeting single-cell lithium-based batteries. It falls under the PMIC category for power management. The WQFN package type indicates a quad flat no-lead configuration, facilitating surface-mount assembly in modern PCB layouts.
Replacement Considerations
Consult official Richtek substitution guides for verified equivalents. Do not assume compatibility based on pin count alone; verify electrical parameters and package dimensions against the datasheet.
FAQ
What is the maximum charging current supported by the RT9528GQW?
The device supports a programmable constant charging current of up to 1.2A.
Which battery chemistries are compatible with this IC?
It is designed for lithium-ion and lithium-polymer battery chemistries.
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