ADI亚德诺_LTC6803-4_产品介绍

ADI亚德诺 LTC6803-4 产品介绍

2026-03-09 0次

特性

Measures Up to 12 Battery Cells in Series
Stackable Architecture
Supports Multiple Battery Chemistries and Supercapacitors
Individually Addressable Serial Interface
0.25% Maximum Total Measurement Error
Engineered for ISO26262 Compliant Systems
13ms to Measure All Cells in a System
Passive Cell Balancing:
- Integrated Cell Balancing MOSFETs
- Ability to Drive External Balancing MOSFETs

On-board Temperature Sensor and Thermistor Inputs
1MHz Serial Interface with Packet Error Checking
Safe with Random Connection of Cells
Built-In Self Tests
Delta-Sigma Converter With Built-In Noise Filter
Open-Wire Connection Fault Detection
12μA Standby Mode Supply Current
High EMI Immunity
44-Lead SSOP Package

产品详情和应用

The LTC6803 is a 2nd generation, complete battery monitoring IC that includes a 12-bit ADC, a precision voltage reference, a high voltage input multiplexer and a serial interface. Each LTC6803 can measure up to 12 series connected battery cells or supercapacitors. Many LTC6803 devices can be stacked to measure the voltage of each cell in a long battery string. Each LTC6803-2/LTC6803-4 has an individually addressable serial interface, allowing up to 16 LTC6803-2/LTC6803-4 devices to interface to one control processor and operate simultaneously. Each cell input has an associated MOSFET switch for discharging overcharged cells. The LTC6803-2 connects the bottom of the stack to V^– internally. It is pin compatible with the LTC6802-2, providing a drop-in upgrade. The LTC6803-4 separates the bottom of the stack from V^–, improving cell 1 measurement accuracy.

The LTC6803 provides a standby mode to reduce supply current to 12μA. Furthermore, the LTC6803 can be powered from an isolated supply, providing a technique to reduce battery stack current draw to zero.

The related LTC6803-1 and LTC6803-3 offer a serial interface that allows the serial ports of multiple LTC6803-1 or LTC6803-3 devices to be daisy chained without optocouplers or isolators.

SPI Interface

Isolated V–

LTC6802 Pin Compatible

LTC6803-1

MDD辰达半导体回扫型ESD，为HDMI接口提供安全防护上一篇下一篇散热设计不良会导致 MOSFET 过热失效？MDD辰达半导体一文讲透

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