BQ25050 Datasheet, PDF (2/28 Pages) Texas Instruments – 1A, Single-Input, Single Cell Li-Ion Battery Charger with 50-mA LDO, External Power Path

bq25050
SLUSA33 – MARCH 2010
www.ti.com
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
PART NO.
bq25050DQCR
bq25050DQCT
ORDERING INFORMATION
MARKING
MEDIUM
DAM
Tape and Reel
DAM
Tape and Reel
QUANTITY
3000
250
PACKAGE DISSIPATION RATINGS TABLE
PACKAGE
R_qJA
10 Pin 2mm × 3mm SON⁽¹⁾
58.7°C/W ⁽²⁾
R_qJC
3.9°C/W
T_A < 25°C POWER
RATING
1.70W
DERATING FACTOR
ABOVE T_A = 25°C
0.017W/°C
(1) Maximum power dissipation is a function of T_J(max), R_qJA, and T_A. The maximum allowable power dissipation at any allowable ambient
temperature is PD = [T_J(max) - T_A]/R_qJA.
(2) This data is based on using the JEDEC High-K board and the exposed die pad is connected to a Cu pad on the board. The pad is
connected to the ground plane by a 2×3 via matrix.
ABSOLUTE MAXIMUM RATINGS⁽¹⁾
over operating free-air temperature range (unless otherwise noted)
VALUE / UNIT
Input Voltage
IN (with respect to VSS)
CTRL, TS, CHG, BGATE (with respect to VSS)
–0.3 to 30 V
–0.3 to 7 V
Output Voltage
BAT, OUT, LDO, CHG, BGATE, IMON (with respect to VSS)
–0.3 to 7 V
Input Current (Continuous)
IN
1.2 A
Output Current (Continuous)
BAT
1.2 A
Output Current (Continuous)
LDO
100 mA
Output Sink Current
CHG
5 mA
Junction temperature, T_J
Storage temperature, T_STG
–40°C to 150°C
–65°C to 150°C
(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating
conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. All voltage
values are with respect to the network ground terminal unless otherwise noted.
RECOMMENDED OPERATING CONDITIONS
over operating free-air temperature range (unless otherwise noted)
IN voltage range
V_IN
IN operating voltage range
I_IN
Input current, IN
I_OUT
Ouput Current in charge mode, OUT
T_J
Junction Temperature
MIN MAX UNITS
3.55
28
V
4.4 10.2
1A
1A
0
125 °C
ELECTRICAL CHARACTERISTICS
Over junction temperature range 0°C ≤ T_J ≤ 125°C and VIN = 5V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
INPUT
V_UVLO
V_HYS-UVLO
Under-voltage lock-out
Hysteresis on UVLO
V_IN: 0V → 4V
V_IN: 4V → 0V
3.25
3.30
250
MAX UNITS
3.55
V
mV
2
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