Product Summary

The LTC6405CUD#PBF is a multicell addressable battery stack monitor . The LTC6405CUD#PBF is a complete battery monitoring IC that includes a 12-bit ADC, a precision voltage reference, a high voltage input multiplexer and a serial interface. Each LTC6405CUD#PBF can measure 12 series connected battery cells, with a total input voltage up to 60V. The voltage on all 12 input channels can be measured within 13ms. The LTC6405CUD#PBFcan be stacked to measure the voltage of each cell in a long battery string. Each LTC6405CUD#PBF has an individually addressable serial interface, allowing up to 16 devices to interface to one control processor and operate simultaneously. The applications of the LTC6405CUD#PBF include Electric and Hybrid Electric Vehicles, High Power Portable Equipment, Backup Battery Systems, High Voltage Data Acquisition Systems.

Parametrics

LTC6405CUD#PBF absolute maximum ratings: (1)Total Supply Voltage (V+ to V-): 60V; (2)Input Voltage (Relative to V-): -0.3V to 9V; (3)Voltage Between Inputs: -0.3V to 9V; (4)Operating Temperature Range: -40℃ to 85℃; (5)Specified Temperature Range: -40℃ to 85℃; (6)Junction Temperature: 150℃; (7)Storage Temperature Range: -65℃ to 150℃.

Features

LTC6405CUD#PBF features: (1)Measures Up to 12 Li-Ion Cells in Series (60V Max); (2)Stackable Architecture Enables Monitoring High Voltage Battery Stacks; (3)Individually Addressable with 4-Bit Address; (4)0.25% Maximum Total Measurement Error; (5)13ms to Measure All Cells in a System; (6)Cell Balancing: On-Chip Passive Cell Balancing Switches; Provision for Off-Chip Passive Balancing; (7)Two Thermistor Inputs Plus Onboard Temperature Sensor; (8)1MHz Serial Interface with Packet Error Checking; (9)High EMI Immunity; (10)Delta-Sigma Converter With Built-In Noise Filter; (11)Open-Wire Connection Fault Detection; (12)Low Power Modes; (13)44-Lead SSOP Package.

Diagrams

LTC6405CUD#PBF circuit diagram

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