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Product Detailed Parameters
- Description：IC BATT CHG LI-ION 1-4CEL 32TQFN
- Series：-
- Mfr：Renesas Electronics Corporation
- Package：Tape & Reel (TR),Cut Tape (CT)
- Battery Chemistry：Lithium Ion/Polymer
- Voltage - Supply (Max)：23.4V
- Operating Temperature：-10°C ~ 100°C (TA)
- Mounting Type：Surface Mount
- Package / Case：32-WFQFN Exposed Pad
- Supplier Device Package：32-TQFN (4x4)
- Number of Cells：1 ~ 4
- Current - Charging：-
- Programmable Features：-
- Fault Protection：Over Current, Over Temperature, Over Voltage
- Charge Current - Max：-
- Battery Pack Voltage：-
- Interface：I2C, USB
- Grade：-
- Qualification：-
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Overview
The ISL9238HRTZ-T7A is a Buck-Boost battery charger IC from Renesas, designed for 1 to 4-cell Lithium-ion and Lithium Polymer battery systems. It operates with an input voltage range of 3.2 V to 23.4 V and provides a programmable charge voltage between 2.4 V and 18.304 V in 8 mV steps. The device features high accuracy, including ±2% current limit accuracy and ±1.1% charging voltage accuracy. It supports trickle charge currents of 64 mA, 128 mA, 256 mA, or 512 mA. Packaged in a 32-pin TQFN (4.0 x 4.0 mm) suitable for surface mount installation, it functions within a temperature range of -40°C to +100°C.
Feature Summary
- Supports Buck-Boost topology for versatile power source compatibility
- Enables precise digital configuration via SMBus interface
- Integrates comprehensive protection mechanisms for safe operation
Applications
- Tablets with 1 to 4 battery cells
- Ultrabooks and notebook computers
- Portable power banks
- USB-C portable devices requiring battery management
Procurement Notes
Verify the specific suffix 'T7A' against official Renesas documentation to confirm tape and reel packaging specifications. Ensure the component matches the required RoHS compliance status and humidity sensitivity handling procedures as defined in the datasheet. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and supply chain integrity before procurement.
Selection Notes
Select this component for applications requiring a single-chip solution for 1 to 4 series battery charging. It is suitable for designs needing wide input voltage tolerance and high precision regulation. Consider the TQFN package size for space-constrained PCB layouts. Verify that the system requirements align with the supported battery chemistries and operating temperature ranges specified by the manufacturer.
Part Context
This component belongs to the ISL9238 family of battery chargers manufactured by Renesas Electronics Corporation. It is part of the broader portfolio of power management integrated circuits (PMIC) focused on portable electronics. The device integrates advanced control algorithms to optimize charging efficiency and safety for modern mobile computing platforms.
Replacement Considerations
Consult official cross-reference lists for verified substitutes such as the ISL9238CHRTZ. Ensure any replacement maintains compatibility with the required cell count, voltage range, and communication interface protocols.
