MAX17823B
PRODUCTION12-Channel High-Voltage Data Acquisition System
Meets Toughest Automotive and Industrial OEM Requirements for Safety, Performance, and Reliability
- Part Models
- 4
- 1ku List Price
- Starting From $10.40
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
Documentation
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 | ||
| MAX17823BGCB+T | Low Quad Flatpack | ||
| MAX17823BGCB/V+ | Low Quad Flatpack | ||
| MAX17823BGCB/V+T | Low Quad Flatpack |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Sep 1, 2021 - 2181 ASSEMBLY |
||
| MAX17823BGCB+ | PRODUCTION | |
| MAX17823BGCB+T | PRODUCTION | |
| MAX17823BGCB/V+ | PRODUCTION | |
| MAX17823BGCB/V+T | PRODUCTION | |
|
Mar 21, 2019 - 1681C2 WAFER FAB |
||
| MAX17823BGCB+T | PRODUCTION | |
| MAX17823BGCB/V+ | PRODUCTION | |
| MAX17823BGCB/V+T | PRODUCTION | |
|
Sep 14, 2021 - 2134 ASSEMBLY |
||
| MAX17823BGCB/V+ | PRODUCTION | |
| MAX17823BGCB/V+T | PRODUCTION | |
|
Jun 21, 2021 - 2134N ASSEMBLY |
||
| MAX17823BGCB/V+ | PRODUCTION | |
| MAX17823BGCB/V+T | PRODUCTION | |
|
May 25, 2022 - 2185A WAFER FAB |
||
| MAX17823BGCB/V+T | PRODUCTION | |
|
Apr 22, 2021 - 2145 ASSEMBLY |
||
| MAX17823BGCB/V+T | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
Request a Driver/SoftwareEvaluation Kits
Evaluation Kit for the MAX17823B
Resources
Latest Discussions
No discussions on MAX17823B yet. Have something to say?
Start a Discussion on EngineerZone®