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Product Detailed Parameters
- Description：IC BATT CHG LI-ION 2-4CEL 32TQFN
- Series：-
- Mfr：Renesas Electronics Corporation
- Package：Tape & Reel (TR)
- Battery Chemistry：Lithium Ion/Polymer
- Voltage - Supply (Max)：23.4V
- Operating Temperature：-
- Mounting Type：Surface Mount
- Package / Case：32-WFQFN Exposed Pad
- Supplier Device Package：32-TQFN (4x4)
- Number of Cells：2 ~ 4
- Current - Charging：Constant - Programmable
- Programmable Features：Current
- Fault Protection：Over Current, Over Temperature
- Charge Current - Max：-
- Battery Pack Voltage：2.4V ~ 18.304V
- Interface：I2C, SMBus
- Grade：-
- Qualification：-
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Overview
The ISL9238CIRTZ-T is a battery management IC designed for notebook and tablet applications, supporting lithium-ion and lithium-polymer chemistries. It operates within an input voltage range of 3.2 V to 23.4 V and provides adjustable output voltages from 2.4 V to 18.304 V in 8 mV steps. The device features a TQFN-32 package with dimensions of 4.0 x 4.0 mm. It supports charge current limits up to 4 A with ±2% accuracy and offers selectable trickle charge currents of 64 mA, 128 mA, 256 mA, or 512 mA. Operating temperatures range from -10°C to +100°C.
Feature Summary
- Integrated buck-boost topology suitable for single-port USB Type-C power sink charger and power bank implementations.
- Configurable charging parameters including precise voltage adjustment and multiple trickle charge current options.
- Designed for safe operation with Battery Management System (BMS) modules in portable devices.
Applications
- Notebook battery chargers
- Tablet and ultrabook power systems
- Portable power banks
- USB-C interface portable devices
Procurement Notes
Verify the specific suffix 'C' against official Renesas documentation to confirm functional differences from standard variants. Confirm moisture sensitivity level handling requirements during storage and assembly. Ensure compatibility with the intended USB Power Delivery controller firmware tools such as VIDWriter for proper system configuration.
Selection Notes
Select this component for designs requiring integrated buck-boost charging in compact form factors. Ensure the application supports the specified operating temperature range and input voltage constraints. Verify that the target device architecture aligns with the IC's support for 1 to 4 series battery cells and USB Type-C specifications.
Part Context
This part belongs to the ISL9238 family of battery charge management controllers manufactured by Renesas Electronics Corporation. It is specifically tailored for portable computing devices like notebooks and tablets. The 'T' suffix indicates tape and reel packaging, while 'IRTZ' denotes the industrial temperature grade and lead-free TQFN package.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source material. Consult official Renesas cross-reference guides for potential alternatives.
