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BQ2083-V1P2 Datasheet(PDF) 3 Page - Texas Instruments

Part No. BQ2083-V1P2
Description  SBS-COMPLIANT GAS GAUGE IC FOR USE WITH THE bp29311
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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BQ2083-V1P2 Datasheet(HTML) 3 Page - Texas Instruments

 
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bq2083-V1P2
SLUS573 − JULY 2003
www.ti.com
3
Terminal Functions
TERMINAL
I/O
DESCRIPTION
NAME
No.
I/O
DESCRIPTION
CLKOUT
35
I
32.768-kHz output to the bq29311
DISP
17
I
Display control for the LED drivers LED1 through LED5
FILT
32
I
Analog input connected to the external PLL filter
EVENT
18
I
Input from bq29311 XALERT output
LED1
24
O
LED2
23
O
LED3
22
O
LED display segments that each may drive an external LED
LED4
21
O
LED display segments that each may drive an external LED
LED5
20
O
MRST
26
I
Master reset input that forces the device into reset when held high
N/C
4, 5, 7, 13,
14, 25, 36, 37
No connection
OC
3
I
Analog input for auto ADC offset compensation; should be connected to VSSA
RBI
9
I
Register backup that provides backup potential to the bq2083−V1P2 data registers during periods of low
operating voltage. RBI accepts a storage capacitor or a battery input.
SAFE
12
O
Output for additional level of safety protection; e.g., fuse blow.
SCLK
6
O
Communication clock to the bq29311
SDATA
10
I/O
Data transfer to and from bq29311
SMBC
15
I/O
SMBus clock open-drain bidirectional pin used to clock the data transfer to and from the bq2083−V1P2
SMBD
16
I/O
SMBus data open-drain bidirectional pin used to transfer address and data to and from the bq2083−V1P2
SR1
28
I
Connections for a small-value sense resistor to monitor the battery charge- and discharge-current flow
SR2
27
I
Connections for a small-value sense resistor to monitor the battery charge- and discharge-current flow
TS
2
I
Thermistor voltage input connection to monitor temperature
VDDA
31
I
Positive supply for analog circuitry
VDDD
8
I
Positive supply for digital circuitry and I/O pins
VIN
1
I
Single cell voltage input from the bq29311
VSSA
29, 30
I
Negative supply for analog circuitry
VSSD
11, 19, 38
I
Negative supply for digital circuitry
XCK1
34
I
32.768 kHz crystal oscillator input pin
XCK2
33
O
32.768 kHz crystal oscillator output pin


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