All DataSheet
Home » Linear » LTC6803IG-2 DataSheet
LTC6803IG-2 DataSheet

LTC6803IG-2 DataSheet

Part No.
Part Marking
–40°C to 85°C
44-Lead Plastic SSOP
File Size
324 KB
40 Pages
Linear Technology
Upload Time
2022-05-26 15:15:29
Update Time
If you would like to buy it now or in the future, please email or add our skype

LTC6803IG-2 Features

■ 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
■ Onboard 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

LTC6803IG-2 Applications

■ Electric and Hybrid Electric Vehicles
■ High Power Portable Equipment
■ Backup Battery Systems
■ Electric Bicycles, Motorcycles, Scooters

LTC6803IG-2 Description

LTC6803IG-2 is a 2nd generation, complete battery moni-toring 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 LTC6803IG-2 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 in-terface that allows the serial ports of multiple LTC6803-1 or LTC6803-3 devices to be daisy chained without opto-couplers or isolators.

Related LTC6803IG-2 Datasheet

Part No.

324Kb / 40P

CopyRight © 2022 All DataSheet(