BQ40Z50-R2 Datasheet, PDF (1/51 Pages) Texas Instruments – 1-Series, 2-Series, 3-Series, and 4-Series Li-Ion Battery Pack Manager

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bq40z50-R2
SLUSCS4 – JUNE 2017
bq40z50-R2 1-Series, 2-Series, 3-Series, and 4-Series Li-Ion Battery Pack Manager
1 Features
•1 Fully Integrated 1-Series, 2-Series, 3-Series, and
4-Series Li-Ion or Li-Polymer Cell Battery Pack
Manager and Protection
• Next-Generation Patented Impedance Track™
Technology Accurately Measures Available
Charge in Li-Ion and Li-Polymer Batteries
• High Side N-CH Protection FET Drive
• Integrated Cell Balancing While Charging or At
Rest
• Suitable for Batteries Between 100 mAh and
29 Ah
• Full Array of Programmable Protection Features
– Voltage
– Current
– Temperature
– Charge Timeout
– CHG/DSG FETs
– AFE
• Sophisticated Charge Algorithms
– JEITA
– Enhanced Charging
– Adaptive Charging
– Cell Balancing
• Supports TURBO Mode 2.0
• Supports Battery Trip Point (BTP)
• Diagnostic Lifetime Data Monitor and Black Box
Recorder
• LED Display
• Supports Two-Wire SMBus v1.1 Interface
• SHA-1 Authentication
• IATA Support
• Compact Package: 32-Lead QFN (RSM)
3 Description
The bq40z50-R2 device, incorporating patented
Impedance Track™ technology, is a fully integrated,
single-chip, pack-based solution that provides a rich
array of features for gas gauging, protection, and
authentication for 1-series, 2-series, 3-series, and 4-
series cell Li-Ion and Li-Polymer battery packs.
Using its integrated high-performance analog
peripherals, the bq40z50-R2 device measures and
maintains an accurate record of available capacity,
voltage, current, temperature, and other critical
parameters in Li-Ion or Li-Polymer batteries, and
reports this information to the system host controller
over an SMBus v1.1 compatible interface.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
bq40z50-R2
VQFN (32)
4.00 mm × 4.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Schematic
PACK+
OUT
VDD
GND
VC3
Cell 3
VC2
Cell 2
VC1
Cell 1
BAT
VC4
VC3
LEDCNTLA
LEDCNTLB
LEDCNTLC
VC2
DISP
VC1
SMBD
SMBC
PBI
VSS SRP SRN TS1 TS2 TS3 TS4 BTP PRES
SMBD
SMBC
PRES
BTP
PACK–
Copyright © 2017, Texas Instruments Incorporated
2 Applications
• Tablets
• Drones
• UPS/Battery Backup Systems
• Medical Equipment
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.