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BQ2084DBT-V140 Datasheet(PDF) 6 Page - Texas Instruments

Part No. BQ2084DBT-V140
Description  SBS v1.1-COMPLIANT GAS GAUGE FOR USE WITH THE bq29312
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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BQ2084DBT-V140 Datasheet(HTML) 6 Page - Texas Instruments

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PIN ASSIGNMENTS
SMBD
1
4
2
5
3
6
7
PU
VSSD
VSSD
LED5
VSSD
LED3
CLKOUT
LED4
N/C
LED2
XCK1/VSSA
DISP
VIN
PFIN
TS
8
9
36
10
35
11
34
12
33
13
32
14
31
15
30
16
29
17
28
18
27
26
23
25
22
24
21
20
19
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
VIN
TS
VSSA
PU
PRES
SCLK
NC
VDDD
RBI
SDATA
VSSD
SAFE
NC
NC
SMBC
SMBD
DISP
PFIN
VSSD
VSSD
NC
NC
CLKOUT
XCK1/VSSA
XCK2/ROSC
FILT
VDDA
VSSA
VSSA
SR1
SR2
MRST
EVENT
LED1
LED2
LED3
LED4
LED5
bq2084-V140
SLUS664B – JULY 2005 – REVISED AUGUST 2006
QFN (RTT)
(TOP VIEW)
TSSOP (DBT)
(TOP VIEW)
Terminal Functions
TERMINAL
I/O
DESCRIPTION
NO.
NO.
NAME
TSSOP
QFN
DISP
17
2
I
Display control for the LED drivers LED1 through LED5
CLKOUT
35
20
O
32.768-kHz output to the bq29312
FILT
32
17
I
Analog input connected to the external PLL filter
EVENT
25
10
I
Input from bq29312 XALERT output
LED1
24
9
O
LED2
23
8
O
LED3
22
7
O
LED display segments that each may drive an external LED
LED4
21
6
O
LED5
20
5
O
MRST
26
11
I
Master reset input that forces the device into reset when held high
7, 13, 14, 36,
NC
21, 29, 35
No connection
37
PFIN
18
3
I
Active low input to detect secondary protector output status
PRES
5
27
I
Active low input to sense system insertion
PU
4
26
O
Output to pull up the PRES pin for detection
Register backup that provides backup potential to the bq2084-V140 data
RBI
9
31
I
registers during periods of low operating voltage. RBI accepts a storage
capacitor or a battery input.
SAFE
12
34
O
Active low output for additional level of safety protection; e.g., fuse blow.
SCLK
6
28
O
Communication clock to the bq29312
SDATA
10
32
I/O
Data transfer to and from bq29312
SMBus clock open-drain bidirectional pin used to clock the data transfer to and
SMBC
15
36
I/O
from the bq2084-V140
6
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