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LINEAR TECHNOLOGY  LTC6802IG-2#PBF  BATTERY MONITOR, LI-ION, 50V, SSOP44

LINEAR TECHNOLOGY LTC6802IG-2#PBF

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Product Overview

The LTC6802IG-2#PBF is a multicell addressable Battery Stack Monitor includes a 12-bit ADC, a precision voltage reference, a high voltage input multiplexer and a serial interface. Each LTC6802-2 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. Many LTC6802-2 devices can be stacked to measure the voltage of each cell in a long battery string. Each LTC6802-2 has an individually addressable serial interface, allowing up to 16 LTC6802-2 devices to interface to one control processor and operate simultaneously. To minimize power, the LTC6802-2 offers a measure mode to monitor each cell for overvoltage and under-voltage conditions. A standby mode is also provided to reduce supply current to 50μA. Each cell input has an associated MOSFET switch that can discharge any overcharged cell.
  • Measures up to 12 Li-ion cells in series (60V maximum)
  • Stackable architecture enables >1000V systems
  • 0.25% Maximum total measurement error
  • 13ms to measure all cells in a system
  • On-chip passive cell balancing switches
  • Provision for off-chip passive balancing
  • Two thermistor inputs plus on-board temperature sensor
  • 1MHz Daisy-chainable serial interface
  • High EMI immunity
  • Delta sigma converter with built-in noise filter
  • Open wire connection fault detection
  • Low power modes

Applications

Automotive; Portable Devices; Power Management; Test & Measurement

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Product Information

Battery Type:
Li-Ion
IC Interface Type:
Serial
No. of Batteries:
12
Supply Voltage Min:
5V
Supply Voltage Max:
60V
Battery IC Case Style:
SSOP
No. of Pins:
44Pins
Operating Temperature Min:
-40°C
Operating Temperature Max:
85°C
Packaging:
Each
Product Range:
-
MSL:
MSL 1 - Unlimited
Supply Voltage Range:
10V to 50V
SVHC:
No SVHC (17-Dec-2015)

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Legislation and Environmental

Moisture Sensitivity Level:
MSL 1 - Unlimited
RoHS Compliant:
Yes

Applications

  • Automotive;
  • Portable Devices;
  • Power Management;
  • Test & Measurement

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