描述 Description

DESCRIPTION
The LTC?6803 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. Using a unique level shifting serial interface, multiple LTC6803-1/ LTC6803-3 devices can be connected in series, without opto-couplers or isolators, allowing for monitoring of every cell in a long string of series-connected batteries. Each cell input has an associated MOSFET switch for discharging overcharged cells. The LTC6803-1 connects the bottom of the stack to V– internally. It is pin compatible with the LTC6802-1, providing a drop-in upgrade. The LTC6803-3 separates the bottom of the stack from V–, improving cell 1 measurement accuracy.FEATURES
Measures Up to 12 Battery Cells in Series
Stackable Architecture
Supports Multiple Battery Chemistries and Supercapacitors
Serial Interface Daisy Chains to Adjacent Devices
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 PackageAPPLICATIONS
Electric and Hybrid Electric Vehicles
High Power Portable Equipment
Backup Battery Systems
Electric Bicycles, Motorcycles, Scooters

特性 Features

Measures Up to 12 Battery Cells in Series
Stackable Architecture
Supports Multiple Battery Chemistries and Supercapacitors
Serial Interface Daisy Chains to Adjacent Devices
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

簡介

LTC6803屬于集成電路（IC）的電池管理。由制造生產(chǎn)的LTC6803電池管理電池管理 PMIC（電源管理集成電路）系列產(chǎn)品可用于電池相關(guān)的監(jiān)測和控制功能，包括身份驗(yàn)證、電池平衡、狀態(tài)監(jiān)測、電量計(jì)量、電源選擇、短路保護(hù)、過壓和欠壓保護(hù)等等。請注意，雖然該系列中的某些產(chǎn)品可能包括電池充電功能，但將充電功能作為主要功能的產(chǎn)品是單獨(dú)分類的。