ISL78714ANZ

Battery Chargers Overview

The ISL78714ANZ is an automotive-grade lithium-ion battery manager IC designed for high-reliability applications. It monitors up to 14 series-connected cells with a 5 V operating supply voltage and operates within a temperature range of -40°C to +105°C. The device features ±2mV initial accuracy and ±2.5mV post-assembly accuracy for cell voltages between 1.65V and 4.28V. Packaged in a 64-lead TQFP, it supports AEC-Q100 certification and ISO26262 ASIL D system compliance.

Battery Chargers Feature Summary

• Supports monitoring and management of up to 14 standard lithium-ion battery cells
• Provides reliable dual-wire daisy-chain communication with capacitor or transformer coupling
• Includes integrated system diagnostics and watchdog timer for fault protection
• Offers multiple battery balancing modes including manual, timed, and automatic options

Battery Chargers Applications

• Automotive battery management systems requiring ASIL D compliance
• Electric vehicle traction battery packs
• Hybrid electric vehicle energy storage units
• Industrial battery monitoring equipment

Battery Chargers Procurement Notes

Verify the specific ordering suffix to confirm package type and lead finish. Confirm RoHS compliance status through official documentation. Ensure compatibility with required isolation methods for the communication interface. Check for any necessary non-disclosure agreements when accessing detailed functional diagrams or software drivers.

Battery Chargers Selection Notes

Select this component for applications demanding high measurement precision and functional safety integrity. Consider the external FET driver requirement if internal balancing is insufficient. Evaluate the need for isolated communication interfaces based on system topology. Verify that the host microcontroller supports the required AUTOSAR MCAL modules for integration.

Battery Chargers Part Context

This part belongs to the ISL78714 family of battery managers from Renesas Electronics. It is optimized for strict automotive performance and reliability standards. The device integrates voltage, temperature, and diagnostic functions into a single chip. It connects to a master controller via SPI and communicates with other devices in the chain.

Battery Chargers FAQ

What is the maximum number of cells supported by the ISL78714ANZ?

The device can monitor and manage up to 14 series-connected lithium-ion battery cells.

Does the ISL78714ANZ support internal battery balancing?

No, the device requires external battery balancing FETs, though it provides built-in drivers for them.

What is the specified accuracy for cell voltage measurement?

The initial device accuracy is ±2mV, and the accuracy after board assembly is ±2.5mV within the specified temperature range.