BQ27500-V120 Datasheet, PDF (3/36 Pages) Texas Instruments – System-Side Impedance Track™ Fuel Gauge

bq27500-V120
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2 DEVICE INFORMATION
System-Side Impedance Track™ Fuel Gauge
SLUS880 – OCTOBER 2008
2.1 AVAILABLE OPTIONS
PART NUMBER
bq27500DRZR-V120
bq27500DRZT-V120
FIRMWARE
VERSION ⁽¹⁾
1.20
PACKAGE ⁽²⁾
T_A
12-pin, 2,5-mm × 4-mm
SON
–40°C to 85°C
COMMUNICATION
FORMAT
I²C
TAPE and
REEL
QUANTITY
3000
250
(1) Ordering the device with the latest firmware version is recommended. To check the fiirmware revision and Errata list see SLUZ015
(2) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
website at www.ti.com.
2.2 DISSIPATION RATINGS
PACKAGE
12-pin DRZ⁽¹⁾
T_A ≤ 40°C
POWER RATING
482 mW
DERATING FACTOR
T_A > 40°C
5.67 mW/°C
R_θJA
176°C/W
(1) This data is based on using a four-layer JEDEC high-K board with the exposed die pad connected to a Cu pad on the board. The board
pad is connected to the ground plane by a 2- × 2-via matrix.
2.3 PIN DIAGRAMS
DRZ PACKAGE
(TOP VIEW)
BAT_LOW 1
BI/TOUT 2
TS 3
BAT ⁴
V_CC
5
V_SS
6
bq27500
12 BAT_GD
11 SCL
10 DAL
9 NC
8 _SRN
7 SRP
Figure 2-1.
Table 2-1. PIN FUNCTIONS
PIN
NAME
NO.
BAT
4
BAT_GD
12
BAT_LOW
1
BI/TOUT
2
NC
9
SCL
11
TYPE ⁽¹⁾
I
O
O
I/O
–
I
DESCRIPTION
Cell-voltage measurement input. ADC input. Decouple with 0.1µF capacitor.
Battery-good indicator. Active-low by default, though polarity can be configured through
the [BATG_POL] of Operation Configuration. Open-drain output
Battery-low output indicator. Active-high by default, though polarity can be configured
through the [BATL_POL] in Operation Configuration. Push-pull output
Battery-insertion detection input. Power pin for pack thermistor network. Thermistor
multiplexer control pin. Open-drain I/O. Use with pullup resistor > 1 MΩ (1.8 MΩ typical).
No connection
Slave I²C serial communications clock input line for communication with system (master).
Open-drain I/O. Use with 10-kΩ pullup resistor (typical).
(1) I = Digital input, O = Digital output, I/O = Digital input/output, IA = Analog input, P = Power connection
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DEVICE INFORMATION
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