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BQ40Z50-R1 Datasheet, PDF (1/55 Pages) Texas Instruments – Li-Ion Battery Pack Manager | |||
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bq40z50-R1
SLUSCB3 â JULY 2015
bq40z50-R1 1-Series, 2-Series, 3-Series, and 4-Series Li-Ion Battery Pack Manager
1 Features
â¢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 Trackâ¢
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
⢠Full Array of Programmable Protection Features
â Voltage
â Current
â Temperature
â Charge Timeout
â CHG/DSG FETs
â AFE
⢠Sophisticated Charge Algorithms
â JEITA
â Enhanced Charging
â Adaptive Charging
â Cell Balancing
⢠Supports TURBO BOOST Mode
⢠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
⢠Compact Package: 32-Lead QFN (RSM)
3 Description
The bq40z50-R1 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-R1 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-R1
VQFN (32)
4.00 mm à 4.00 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
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
2 Applications
PACKâ
⢠Notebook/Netbook PCs
⢠Medical and Test Equipment
⢠Portable Instrumentation
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.
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