12-Channel, High-Voltage Sensor with Integrated Cell Balancing and Differential UART for Daisy-Chain Communication

Meets Toughest Automotive and Industrial OEM Requirements for Safety, Performance, and Reliability

Overview

Status

Part Number	Status
MAX17823	Future Product

Description

The MAX17823 is Maxim's fourth-generation, high-voltage battery-management solution. With higher accuracy, safety-enabling features, and an automotive-hardened differential UART, the MAX17823 provides the highest safety and reliability solution for EV battery-pack designs.

As Maxim's latest ISO 26262 ASIL-D-compliant 12-cell daisy-chain device, the MAX17823 has undergone rigorous testing to ensure operation under the most hostile of EMC/EMI environments. The robust differential UART daisy-chain supports cable lengths of up to 3m and passes tough industry-compliance testing. Cell-reversal capability and 96-cell hot-plug performance make pack assembly easy for high-cell-count systems.

A host of ASIL-enabling features makes safety assessment of pack operation simple and straightforward for any host microcontroller.

Data Sheet

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Key Features

12-Cell Battery-Voltage Measurement for Lithium-Ion, NiMH, or Super-Cap Cells
Two Auxiliary Analog Inputs for Thermistor Temperature Measurement
Die Temperature Measurement and Alert
High-Accuracy I/Os
Excellent ±2mV Typical Voltage-Measurement Accuracy
Integrated 12-Channel Data-Acquisition System
Differential High-Voltage Mux to ADC
Full Featured at 100Hz Measurement Rate
14-Bit ADC Resolution with Oversampling
12 Cell Voltages Measured within 142µs
Module Voltage Measurement
Battery-Fault Detection
Overvoltage and Undervoltage Digital Detection Threshold
Enhanced Diagnostic Features for Fault Detection to Support ASIL and FMEA
12 Internal Cell-Balancing Switches
Supports Up to 150mA Per Switch
Integrated 9V to 65V Input Linear Regulator
Integrated Temperature-Compensated, 2.307V Precision Reference
Robust Differential Daisy-Chain UART Interface
Up to 32 Connected ICs in a Single Daisy-Chain
Standard UART Bytes at 2Mbps (max) Rate
Fault-Tolerant Error-Checking Protocol
Four General-Purpose Digital I/O Lines
Ultra-Low Power Dissipation
650µA Standby-Mode Supply Current
1µA Shutdown-Mode Leakage Current
-40°C to 105°C Operating Temperature Range (AEC-Q100 Type 2)
64-Pin, Lead(Pb)-Free/RoHS-Compliant, 10mm × 10mm LQFP Package

More Information

New Product Press Release

[ 2012-09-20 ] [ 2012-09-20 ]

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Information Index

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Description Key Features Applications/Uses Key Specifications Diagram Notes and Comments		Data Sheet Technical Documents Evaluation Kits Reliability Reports Software/Models		Price and Availability Samples Buy Online Package Information Lead-Free Information		Similar Products by Function Similar Products by Application Evaluation Kits Products with Similar Part Numbers Products Used With This

This page last modified: 2012-09-20