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| BQ34Z950 Datasheet, PDF (2/28 Pages) Texas Instruments – SBS 1.1-COMPLIANT GAS GAUGE AND PROTECTION ENABLED WITH IMPEDANCE TRACK WITH OPTIONAL DQ INTERFACE | |||
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bq34z950
SLUSBF0A â APRIL 2013 â REVISED MAY 2013
www.ti.com
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
TA
â40°C to 85°C
Table 1. AVAILABLE OPTIONS
PACKAGE (1)
44-PIN TSSOP (DBT) Tube
bq34z950DBT (2)
44-PIN TSSOP (DBT) Tape and Reel
bq34z950DBTR (3)
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
website at www.ti.com.
(2) A single tube quantity is 40 units.
(3) A single reel quantity is 2000 units.
THERMAL INFORMATION
THERMAL METRIC(1)
θJA Junction-to-ambient thermal resistance
TA⤠25°C Power Rating
Derating Factor TA> 25°C
TA⤠70°C Power Rating
TA⤠85°C Power Rating
bq34z950
44-PIN TSSOP
(DBT)
47.6
2101
21.01
1155
840
UNITS
°C/W
mW
mW/°C
mW
mW
(1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
SYSTEM PARTITIONING DIAGRAM
PACK+
DISP
LED Display
SMBD
SMBC
SMB 1.1
Data Flash
Memory
JEITA and
Enhanced
Charging
Algorithm
SHA-1
Authentication
DQ
System Control
Over
Temperature
Protection
Temperature
Measurement
Oscillator
Over & Under
Voltage
Protection
Over Current
Protection
PreCharge FET
& GPOD Drive
N Channel FET
Drive
Power Mode
Control
Voltage
Measurement
Impedance
Track⢠Gas
Gauging
Coulomb
Counter
AFE HW Control
HW Over
Current & Short
Circuit Protection
Watchdog
Cell Voltage
Multiplexer
Cell Balancing
Regulators
RBI
MSRT
RESET
ALERT
VCELL+
VC1
VC2
VC3
VC4
VC5
REG33
REG25
+
VC1
+
VC2
VC3
+
VC4
VDD
OUT
CD
GND
+
bq294xx
PACKâ
2
Submit Documentation Feedback
RSNS
5 mâ¦â20 m⦠typ
Product Folder Links: bq34z950
Copyright © 2013, Texas Instruments Incorporated
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