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BQ34Z653DBT Datasheet(PDF) 5 Page - Texas Instruments

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Part # BQ34Z653DBT
Description  SBS 1.1-Compliant Gas Gauge and Protection Enabled with Impedance Track with External Battery Heater Control and LCD Display
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

BQ34Z653DBT Datasheet(HTML) 5 Page - Texas Instruments

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background image
1
2
DSG
ZVCHG
3
REG33
4
VSS
VC5
5
6
TOUT
7
ASRP
8
VC4
CHG
PACK
ASRN
PMS
35
36
9
10
37
38
40
39
GPOD
VC3
VC1
VC2
BAT
RESET
VCELL+
VCC
ALERT
33
34
VSS
11
12
RBI
COM
41
42
44
43
13
14
15
32
30
31
TS1
TS2
PRES
REG25
VSS
MRST
PFIN
GSRN
28
29
16
17
GSRP
SAFE
SMBD
26
27
LED5/SEG5
18
19
LED4/SEG4
NC
20
21
22
25
23
24
SMBC
DISP
VSS
LED3/SEG3
LED2/SEG2
LED1/SEG1
bq34z653
www.ti.com
SLUSB53 –JULY 2012
PACKAGE PINOUT DIAGRAM
DBT PACKAGE
(TOP VIEW)
PIN FUNCTIONS
PIN
I/O(1)
DESCRIPTION
NO.
NAME
1
DSG
O
High-side N-channel discharge FET gate drive
Battery pack input voltage sense input. It also serves as device wake up when device is in SHUTDOWN
2
PACK
IA, P
mode.
Positive device supply input. Connect to the center connection of the CHG FET and DSG FET to ensure
3
VCC
P
device supply either from battery stack or battery pack input.
4
ZVCHG
O
P-channel pre-charge FET gate drive
5
GPOD
OD
High voltage general purpose open drain output. It can be configured to be used in pre-charge condition.
PRE-CHARGE mode setting input. Connect to PACK to enable 0v pre-charge using charge FET
6
PMS
I
connected at CHG pin. Connect to VSS to disable 0-V pre-charge using charge FET connected at CHG
pin.
7
VSS
P
Negative supply voltage input. Connect all VSS pins together for operation of device.
8
REG33
P
3.3-V regulator output. Connect at least a 2.2-μF capacitor to REG33 and VSS.
9
TOUT
P
Thermistor bias supply output
10
VCELL+
Internal cell voltage multiplexer and amplifier output. Connect a 0.1-μF capacitor to VCELL+ and VSS.
Alert output. In case of short circuit condition, overload condition and watchdog timeout, this pin will be
11
ALERT
I/OD
triggered.
12
COM
O
Output/open drain: LCD common connection
(1) I = Input, IA = Analog input, I/O = Input/output, I/OD = Input/Open-drain output, O = Output, OA = Analog output, P = Power
Copyright © 2012, Texas Instruments Incorporated
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