MAX17823H
PRODUCTION12-Channel, High-Voltage Data-Acquisition Systems
Meets Toughest Automotive and Industrial OEM Requirements for Safety, Performance, Reliability with Balancing Currents
- Part Models
- 2
- 1ku List Price
- price unavailable
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 650mA per switch
- Emergency Discharge Mode
- 2 Temperature Measurement Channels
- Die Temperature Measurement
- Automatic Thermal Protection
- 29 Voltage Threshold Alerts
- 12 Overvoltage Faults
- 12 Undervoltage Faults
- 2 Overtemperature Faults
- 2 Undertemperature Faults
- 1 Cell Mismatch Alert
- 4 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 2 Mbps Baud Rate (auto-detect)
- 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 MAX17823H is a data acquisition system for the management of high-voltage battery modules. The system features a 12-bit SAR ADC that can measure 12 cell voltages and two temperatures in 161 µs. 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 (0V 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, is ideal for automotive battery-management systems that require a high safety-integrity level.
Applications
- Battery-Backup Systems (UPS)
- Battery-Powered Tools
- Electric Bikes
- Electric Vehicles (EVs)
- High-Voltage Battery Stacks
- Hybrid Electric Vehicles (HEVs)
- Super-Cap Systems
Documentation
Video 1
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 |
|---|---|---|---|
| MAX17823HGCB/V+ | 64-Lead LQFP (10mm x 10mm x 1.4mm) | ||
| MAX17823HGCB/V+T | 64-Lead LQFP (10mm x 10mm x 1.4mm) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Sep 1, 2021 - 2181 ASSEMBLY |
||
| MAX17823HGCB/V+ | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
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