ISL88739AHRZ

Battery Chargers Overview

The ISL88739AHRZ is a lithium-ion/polymer battery charger IC supporting 2 to 4 cells. It operates with an input voltage range of 8V to 22V and provides a charge voltage adjustable from 1.024V to 19.2V in 16mV steps. The charging voltage accuracy is ±0.5%, and the charge current limit accuracy is ±3%. Trickle charge current ranges from 64mA to 220mA. It features SMBus interface, 32-QFN (4x4) package, and RoHS3 compliance.

Battery Chargers Feature Summary

• Configurable as Hybrid Power Boost (HPB) or Narrow Voltage DC (NVDC) charger
• Turbo mode allows battery and adapter to power system simultaneously
• All switches use N-channel MOSFETs for optimal performance and low BOM cost
• Internal charge pump enables fast or slow NFET turn-on

Battery Chargers Applications

• Notebook computers
• Hybrid electric vehicle battery management
• Industrial equipment power systems
• Portable electronic devices requiring high efficiency

Battery Chargers Procurement Notes

Verify component authenticity through authorized Renesas distributors. Confirm datasheet revision matches design requirements. Check PCN notices for potential label or packaging updates. Ensure EOL status does not impact long-term supply needs. Validate RoHS3 compliance for environmental regulations.

Battery Chargers Selection Notes

Choose based on required cell count (2-4) and topology preference (HPB/NVDC). Consider SMBus programmability for system integration flexibility. Evaluate thermal performance within 32-QFN package constraints. Verify compatibility with existing adapter specifications and system load profiles.

Battery Chargers Part Context

Part of Renesas ISL88739 family offering versatile battery charging solutions. Designed for applications requiring efficient power management and system protection. Supports advanced features like PROCHOT# indication and hardware current limits. Compatible with Intel platform requirements for notebook designs.

Battery Chargers Replacement Considerations

ISL88739B offers similar HPB functionality without NVDC support. ISL95522A provides combined HPB and NVDC capabilities with SMBus interface. Verify pinout compatibility and parameter alignment before substitution.