ISL9538BHRTZ

Battery Chargers Overview

The ISL9538BHRTZ is a Buck-Boost Narrow VDC battery charger IC designed for notebook and mobile platforms. It supports 2 to 4 series lithium-ion or lithium-polymer batteries with an input voltage range of 3.2V to 23.4V. The device regulates system output between 2.4V and 18.304V. It features a 32-lead TQFN package (4x4mm) and operates within a temperature range of -10°C to +100°C. The IC includes SMBus/I2C interfaces for configuration and provides protection against over-current, over-voltage, and thermal faults.

Battery Chargers Feature Summary

• Supports NVDC charging topology for stable system bus voltage regulation during adapter presence
• Enables bidirectional power flow with ideal diode control in Turbo mode
• Integrates system power monitoring (PSYS) compliant with IMVP standards
• Provides programmable charge current and voltage via digital interface

Battery Chargers Applications

• Notebook computers
• Tablets and ultrabooks
• Mobile power banks
• USB-C interface platforms

Battery Chargers Procurement Notes

Verify the specific suffix 'HRTZ' corresponds to the tray packaging variant rather than the tape-and-reel version. Confirm RoHS3 compliance status as per the latest datasheet revision. Ensure moisture sensitivity level (MSL 3) handling procedures are followed upon receipt. Cross-reference the manufacturer part number with official Renesas documentation to avoid confusion with similar model numbers in the ISL9538 family.

Battery Chargers Selection Notes

Select this component when a buck-boost topology is required to handle input voltages both above and below the battery pack voltage. It is suitable for systems needing precise battery management with digital configurability. Consider the 32-lead TQFN package constraints for PCB layout. Verify that the application requires the specific operating temperature range and interface protocols supported by this device.

Battery Chargers Part Context

The ISL9538BHRTZ belongs to the ISL9538 family of narrow VDC chargers from Renesas. This family utilizes R3 technology for high efficiency. The 'B' suffix typically denotes specific binning or packaging variations within the product line. It is distinct from the ISL95338, which is a general-purpose switching regulator rather than a dedicated battery charger.

Battery Chargers Replacement Considerations

ISL9538CHRTZ is a documented alternative within the same family offering similar NVDC capabilities.