ISL78714ANZ-T

Battery Chargers Overview

The ISL78714ANZ-T is an automotive-grade lithium-ion battery manager IC designed for monitoring up to 14 series-connected cells. It supports a pack operating voltage range of 12V to 65V and operates within a temperature range of -40°C to +105°C. The device features 14-bit voltage and temperature measurement accuracy, with initial precision of ±2mV and board assembly precision of ±2.5mV across the -20°C to +85°C range. It utilizes a reliable dual-wire daisy-chain communication system capable of speeds up to 1Mbps, supporting capacitor or transformer coupling.

Battery Chargers Feature Summary

• AEC-Q100 certified for ASIL D system compliance
• Supports manual, timed, and automatic cell balancing modes
• Integrated system diagnostics including watchdog timer protection
• Capable of reading all voltage, temperature, and diagnostic data in under 10ms

Battery Chargers Applications

• Automotive battery management systems
• High-voltage electric vehicle traction batteries
• Hybrid electric vehicle power packs

Battery Chargers Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging configuration against official Renesas documentation. Confirm AEC-Q100 qualification status and ASIL-D functional safety compliance requirements for your target application. Ensure compatibility with AUTOSAR, ASPICE, and ISO26262 development processes. Check for required NDA access for full datasheet details and complex device driver software integration.

Battery Chargers Selection Notes

Select this component for applications requiring high-precision monitoring of large series-cell arrays in harsh automotive environments. Consider its integrated diagnostic capabilities and robust communication interface for system reliability. Evaluate the need for external current sense detection if charge/discharge control is required beyond monitoring. Assess thermal performance within the specified operating temperature range.

Battery Chargers Part Context

The ISL78714 belongs to Renesas' automotive battery management portfolio, optimized for strict performance and safety standards. It serves as a critical node in BMS architectures, communicating with host microcontrollers via SPI or dedicated daisy-chain links. The device integrates essential functions like voltage sensing, temperature monitoring, and cell balancing control.

Battery Chargers FAQ

What communication interfaces does the ISL78714 support?

It connects to a master MCU via an SPI port and supports a dual-wire daisy-chain system for connecting multiple devices, which can be isolated using capacitors or transformers.

How does the device handle cell balancing?

It offers three modes: manual, timed, and automatic. In automatic mode, balancing terminates after consuming a host-specified amount of energy from each cell.