DS2790 Maxim Integrated Products, DS2790 Datasheet - Page 7

• Manufacturer Part Number: DS2790
• Description: Programmable 1-Cell Li-Ion Fuel Gauge and Protector
• Manufacturer: Maxim Integrated Products

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PIN DESCRIPTION
4
PIN
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
1
2
3
4
5
6
7
8
9
NAME
SNS2
SNS1
AVSS
N.C.
N.C.
SDA
P0.0
P0.1
N.C.
N.C.
N.C.
N.C.
P0.2
P0.3
P0.4
P0.5
N.C.
N.C.
PAD
PLS
SCL
V
IS2
IS1
V
CP
DC
CC
V
SS
DD
IN
No Connection
No Connection
Discharge Control. Discharge FET gate drive output.
Charge Control. Charge FET gate drive output.
No Connection
No Connection
No Connection
No Connection
Programmable I/O Pin
No Connection
No Connection
Charge Pump Output. Bypass CP to V
Pack Plus. Positive pack terminal connection.
2-wire Serial Interface Clock Input and Output
2-wire Serial Interface Data Input and Output
Programmable I/O Pin. Alternate functions: external interrupt input
INT0, [JTAG TDI].
Programmable I/O Pin. Alternate functions: External interrupt input
INT1, [JTAG TMS].
Current Sense Input. SNS2 attaches to pack end of current sense
resistor.
Current Filter Input 2
Current Filter Input 1
Current Sense Input. SNS1 attaches to battery end of current sense
resistor and V
Analog Supply Return Node. AVSS attaches to negative battery
terminal.
Digital Supply Return Node. V
Programmable I/O Pin. Alternate functions: Reset input pin RST .
Programmable I/O Pin. Alternate functions: Timer/Counter input pin
TCK, [JTAG TCK].
Programmable I/O Pin. Alternate function: [JTAG TDO]
Input Supply: +2.5V to +5.5V input range. Bypass V
0.1mF.
Battery voltage sense input, measurement relative to AVSS.
Exposed PAD (TDFN only). Not electrically connected to IC. Connect
to V
SS
or leave floating.
SS
.
DS2790 Programmable 1-Cell Li-Ion Fuel Gauge and Protector
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DESCRIPTION
SS
attaches to negative battery terminal.
SS
with 0.1mF.
DD
to V
SS
with