BQ27505YZGR-J4

Manufacturer Part NumberBQ27505YZGR-J4
DescriptionIC BATT FUEL GAUGE LIION 12DSBGA
ManufacturerTexas Instruments
SeriesImpedance Track™
BQ27505YZGR-J4 datasheet
 


Specifications of BQ27505YZGR-J4

FunctionFuel, Gas Gauge/MonitorBattery TypeLithium-Ion (Li-Ion)
Voltage - Supply2.4 V ~ 2.6 VOperating Temperature-40°C ~ 85°C
Mounting TypeSurface MountPackage / Case12-UFBGA, WLCSP
Lead Free Status / RoHS StatusLead free / RoHS Compliant  
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2 DEVICE INFORMATION
2.1
AVAILABLE OPTIONS
FIRMWARE
PART NUMBER
VERSION
bq27505YZGR-J4
2.24
bq27505YZGT-J4
(1) 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
THERMAL RESISTANCE
θ
YZG
= 89°C/W
JA
(1) Measured with high-K board.
(2) Maximum power dissipation is a function of T
temperature is P
= (T
– T
)/ θ
D
J(max)
A
JA
2.3
PIN ASSIGNMENT
CSP-12
(TOP VIEW)
A3
B3
C3
B2
C2
A2
B1
C1
A1
PIN
(1)
TYPE
NAME
NO.
Analog input pin connected to the internal coulomb counter where SRP is nearest the PACK– connection.
SRP
A1
IA
Connect to 5-mΩ to 20-mΩ sense resistor.
Analog input pin connected to the internal coulomb counter where SRN is nearest the Vss connection.
SRN
B1
IA
Connect to 5-mΩ to 20-mΩ sense resistor.
Battery Low output indicator. Active high by default, though polarity can be configured through the
BAT_LOW
C1
O
[BATL_POL] bit of Operation Configuration. Push-pull output.
Vss
D1
P
Device ground
Battery-good indicator. Active-low by default, though polarity can be configured through the [BATG_POL] bit
/BAT_GD
A2
O
of Operation Configuration. Push-pull output.
SOC state interrupts output. Generate a pulse under the conditions specified by
SOC_INT
B2
I/O
output.
BAT
C2
I
Cell-voltage measurement input. ADC input. Recommend 4.8V maximum for conversion accuracy.
Vcc
D2
P
Processor power input. Decouple with minimum 0.1μF ceramic capacitor.
2
Slave I
C serial communications data line for communication with system (Master). Open-drain I/O. Use with
SDA
A3
I/O
10kΩ pull-up resistor (typical).
2
Slave I
C serial communications clock input line for communication with system (Master). Use with 10kΩ
SCL
B3
I
pull-up resistor (typical).
Battery-insertion detection input. Power pin for pack thermistor network. Thermistor-multiplexer control pin.
BI/TOUT
C3
I/O
Use with pull-up resistor >1MΩ (1.8 MΩ typical).
(1) I/O = Digital input/output, IA = Analog input, P = Power connection
Copyright © 2009, Texas Instruments Incorporated
(1)
PACKAGE
T
COMMUNICATION FORMAT
A
CSP-12
–40°C to 85°C
(1) (2)
θ
= 35°C/W
JB
, θ
and T
. The maximum allowable power dissipation at any allowable ambient
J(max)
JA
A
.
D3
D2
D1
Table 2-1. PIN FUNCTIONS
DESCRIPTION
Submit Documentation Feedback
bq27505-J4
SLVSA40 – DECEMBER 2009
TAPE & REEL QUANTITY
3000
2
I
C
250
POWER RATING
DERATING FACTOR
(1) (2)
T
= 25°C
ABOVE
T
A
A
1.1 W
12 mW/°C
CSP-12
(BOTTOM VIEW)
D3
C3
B3
A3
D2
C2
B2
A2
D1
C1
B1
A1
Table
5-5. Open drain
DEVICE INFORMATION
= 25°C
3