MAX17823B

PRODUCTION

12-Channel High-Voltage Data Acquisition System

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

Data Sheet (Rev. 5) Product Selection Table

Part Models: 4
1ku List Price: Starting From $7.90

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Overview

AEC-Q100 Grade 2 Temperature Range
- -40°C to +105°C
Operating Voltage from 9V to 65V
Ultra-Low-Power Operation
- Standby Mode: 2mA
- Shutdown Mode: 2μA
12 Cell-Voltage-Measurement Channels
- 2mV Accuracy (3.6V, +25° C)
- 5mV Accuracy (0°C to +45°C)
- 10mV Accuracy (-40°C to +105°C)
12 Cell-Balancing Switches
- Up to 150mA per Switch
- Emergency-Discharge Mode
Two Temperature-Measurement Channels
Die Temperature Measurement
Automatic Thermal Protection
29 Voltage Threshold Alerts
- 12 Over-Voltage Faults
- 12 Under-Voltage Faults
- Two Over-Temperature Faults
- Two Under-Temperature Faults
- One Cell Mismatch Alert (highest cell versus lowest cell)
Four GPIOs
Built-in Diagnostics to Support ASIL D and FMEA Requirements
Battery-Management UART Protocol
- Daisy-Chain Up to 32 Devices
- Communication Port Isolation
- Up to 2Mbps Baud Rate (Autodetect)
- 1.5µs Propagation Delay per Device
- Packet-Error Checking (PEC)
Factory-Trimmed Oscillators
- No External Crystals Required
10mm x 10mm Package (64-Pin LQFP)

The MAX17823B is a data acquisition system for the management of high-voltage battery modules. The system features 12-bit SAR ADC that can measure 12 cell voltages and two temperatures in 161μs. There are 12 internal switches for cell balancing and extensive built-in diagnostics. Up to 32 devices can be daisy-chained together to manage 384 cells and monitor 64 temperatures.

Cell voltages (0 to 5V) are measured differentially over a 65V common-mode range. Cell measurements have a typical accuracy of 2mV (3.6V cell, +25°C). If oversampling is enabled, up to 128 measurements per channel can be averaged internally with 14-bit resolution. The system can shut itself down in the event of a thermal overload by measuring its own die temperature.

The system uses Maxim’s battery-management UART protocol for robust communications and when used in conjunction with the MAX17880 12-channel battery monitor, they are ideal for automotive battery-management systems that require a high safety integrity level.

Applications

Battery Packs
Battery Systems
Electric Bikes
Electric Vehicles and Hybrid Vehicle (HEV)
High-Power Battery Backup Systems
High-Voltage, Multi-Cell Series-Stacked-
Power Tools
SuperCap Backup Systems

Part Models: 4
1ku List Price: Starting From $7.90

Documentation

Data Sheet 1

MAX17823B: 12-Channel High-Voltage Data Acquisition System Data Sheet (Rev.5) 04/03/2020

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
MAX17823BGCB+	Low Quad Flatpack	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX17823BGCB+T	Low Quad Flatpack	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX17823BGCB/V+	Low Quad Flatpack	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX17823BGCB/V+T	Low Quad Flatpack	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Sep 1, 2021 - 2181 ASSEMBLY
		pcn_2181
MAX17823BGCB+	PRODUCTION
MAX17823BGCB+T	PRODUCTION
MAX17823BGCB/V+	PRODUCTION
MAX17823BGCB/V+T	PRODUCTION
Mar 21, 2019 - 1681C2 WAFER FAB
		pcn_1681c2
MAX17823BGCB+T	PRODUCTION
MAX17823BGCB/V+	PRODUCTION
MAX17823BGCB/V+T	PRODUCTION
Sep 14, 2021 - 2134 ASSEMBLY
		pcn_2134
MAX17823BGCB/V+	PRODUCTION
MAX17823BGCB/V+T	PRODUCTION
Jun 21, 2021 - 2134N ASSEMBLY
		pcn_2134n
MAX17823BGCB/V+	PRODUCTION
MAX17823BGCB/V+T	PRODUCTION
May 25, 2022 - 2185A WAFER FAB
		pcn_2185a
MAX17823BGCB/V+T	PRODUCTION	pcn_2185a
Apr 22, 2021 - 2145 ASSEMBLY
		pcn_2145
MAX17823BGCB/V+T	PRODUCTION	pcn_2145

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Evaluation Kits

Evaluation Kit for the MAX17823B

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Features and Benefits

Battery-Cell String Emulation
UART interface
Windows XP^®-, Windows Vista^®-, or Windows^®7-Compatible Software
Fully Assembled and Tested

Product Details

The MAX17823 evaluation kit (EV kit) demonstrates the capabilities of the MAX17823B advanced smart batterypack controller. Vertical headers (P2, P3, P5, and P6) allow for the connection of multiple EV kits to support the maximum 32-device daisy-chain capability.

Applications

Battery Packs
Battery Systems
Electric Bikes
Electric Vehicles and Hybrid Vehicle (HEV)
High-Power Battery Backup Systems
High-Voltage, Multi-Cell Series-Stacked-
Power Tools
SuperCap Backup Systems

Resources

MAX17823EVKIT ODB Files - Design Files
1/1/0001

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