ATA6870 ATMEL Corporation, ATA6870 Datasheet

no-image

ATA6870

Manufacturer Part Number
ATA6870
Description
Manufacturer
ATMEL Corporation
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATA6870-PLPW
Manufacturer:
IR
Quantity:
32
Part Number:
ATA6870N
Manufacturer:
ATMEL
Quantity:
3 100
Part Number:
ATA6870N-PLQW
Manufacturer:
EBM
Quantity:
1 000
Features
Applications
Benefits
1. Description
The ATA6870 is a measurement and monitoring circuit designed for Li-ion and NiMH
multicell battery stacks in hybrid electrical vehicles.
The ATA6870 monitors the battery-cell voltage and the battery-cell temperature with a
12-bit ADC.
The circuit also provides charge-balancing capability for each battery-cell.
In addition, a linear regulator is integrated to supply a microcontroller or other external
components. Reliable communication between stacked ICs is achieved by level-shift-
ers with current sources. The ATA6870 can be connected to three, four, five or six
battery-cells. Up to 16 circuits (96 cells) can be cascaded in one string. The number of
strings is not limited.
12-bit Battery-cell Voltage Measurement
Simultaneous Battery Cells Measurement in Parallel
Cell Temperature Measurement
Charge Balancing Capability
Integrated Power Supply for MCU
Undervoltage Detection
Less than 10 µA Standby Current
Low Cell Imbalance Current (< 10 µA)
Hot Plug-in Capable
Interrupt Timer for Cycling MCU Wake-ups
Cost-efficient Solution Due to Cost-optimized 30V CMOS Technology
Reliable Communication between Stacked ICs Due to Level Shifters with Current
Sources and Checksum Monitoring of Data
Daisy-chainable
Package QFN48 7 mm 7 mm
Battery Measurement, Supply and Monitoring IC for Li-ion and NiMH Battery Systems
in Electric (EV) and Hybrid Electrical (HEV) Vehicles
Highest Safety Level for Li-ion Battery Systems in Combination with ATA6871
Cost Reduction Due to Integrated Measurement Circuit and High Voltage Power-supply
– Parallel Balancing of Cells Possible
– Each IC Monitors up to 6 Battery Cells
– 16 ICs (96 Cells) per String
– No Limit on Number of Strings
Li-Ion, NiMH
Battery
Measuring,
Charge
Balancing and
Power-supply
Circuit
ATA6870
Preliminary
9116B–AUTO–10/09

Related parts for ATA6870

Related keywords