BQ27620-G1 Datasheet, PDF (4/45 Pages) Texas Instruments – System-Side Impedance Track™ Fuel Gauge

bq27620-G1
SLUSAE3 – OCTOBER 2012
2.3 PIN ASSIGNMENT AND PACKAGE DIMENSIONS
(TOP VIEW)
(BOTTOM VIEW)
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A3
B3
C3
D3
E3
E3
D3
C3
B3
A3
xxxx^A2
B2
A1
B1
Pin A1
C2
C1
D2
D1
E2
E1
Index Area
D
E2
D2
C2
B2
A2
E1
D1
C1
B1
A1
DIM
MIN
D
2580
E
1926
TYP
2610
1956
MAX
2640
1986
UNITS
m
Table 2-1. PIN FUNCTIONS
PIN
NAME
NO.
V_SS
A1, B1,
C1, C2
V_CC
D1
REGIN
E1
SOC_INT
A2
BAT_GD
B2
CE
D2
BAT
E2
SCL
A3
SDA
B3
BAT_LOW
C3
TS
D3
BI/TOUT
E3
TYPE ⁽¹⁾
DESCRIPTION
P
Device ground
P
Regulator output and bq27620-G1 processor power. Decouple with 1μF ceramic capacitor to Vss.
P
Regulator input. Decouple with 0.1μF ceramic capacitor to Vss.
O
SOC state interrupts output. Generates a pulse under the conditions specified by Table 5-7. Open drain output. (RA3)
O
Battery-good indicator. Active-low by default, though polarity can be configured through the [BATG_POL] bit of
Operation Configuration. Push-pull output. (RC1)
I
Chip Enable. Internal LDO is disconnected from REGIN when driven low.
I
Cell-voltage measurement input. ADC input. Recommend 4.8V maximum for conversion accuracy. (RC3)
I
Slave I²C serial communications clock input line for communication with system (Master). Use with 10kΩ pull-up
resistor (typical). (RA2)
I/O
Slave I²C serial communications data line for communication with system (Master). Open-drain I/O. Use with 10kΩ
pull-up resistor (typical). (RA1)
O
Battery Low output indicator. Active high by default, though polarity can be configured through the [BATL_POL] bit of
Operation Configuration. Push-pull output. (RC0)
IA
Pack thermistor voltage sense (use 103AT-type thermistor). ADC input. (RC2)
I/O
Battery-insertion detection input. Power pin for pack thermistor network. Thermistor-multiplexer control pin. Use with
pull-up resistor >1MΩ (1.8 MΩ typical). (RA0)
(1) I/O = Digital input/output, IA = Analog input, P = Power connection
4
DEVICE INFORMATION
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