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BQ24073RGTTG4 Datasheet(PDF) 2 Page - Texas Instruments

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Part # BQ24073RGTTG4
Description  1.5A USB-FRIENDLY Li-Ion BATTERY CHARGER AND POWER-PATH MANAGEMENT IC
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

BQ24073RGTTG4 Datasheet(HTML) 2 Page - Texas Instruments

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DESCRIPTION (CONTINUED)
ABSOLUTE MAXIMUM RATINGS
(1)
bq24072, bq24073
bq24074, bq24075
SLUS810A – SEPTEMBER 2008 – REVISED DECEMBER 2008...................................................................................................................................... www.ti.com
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
Additionally, the regulated system input enables instant system turn-on when plugged in even with a totally
discharged battery. The power-path management architecture also permits the battery to supplement the system
current requirements when the adapter cannot deliver the peak system currents, enabling the use of a smaller
adapter.
The battery is charged in three phases: conditioning, constant current, and constant voltage. In all charge
phases, an internal control loop monitors the IC junction temperature and reduces the charge current if the
internal temperature threshold is exceeded. The charger power stage and charge current sense functions are
fully integrated. The charger function has high accuracy current and voltage regulation loops, charge status
display, and charge termination. The input current limit and charge current are programmable using external
resistors.
ORDERING INFORMATION
PART NUMBER
OPTIONAL
VOVP
VOUT(REG)
VDPPM
MARKING
(1) (2)
FUNCTION
bq24072RGTR
6.6 V
VBAT + 225 mV
VO(REG) – 100 mV
TD
CKP
bq24072RGTT
6.6 V
VBAT + 225 mV
VO(REG) – 100 mV
TD
CKP
bq24073RGTR
6.6 V
4.4 V
VO(REG) – 100 mV
TD
CKQ
bq24073RGTT
6.6 V
4.4 V
VO(REG) – 100 mV
TD
CKQ
bq24074RGTR
10.5 V
4.4 V
VO(REG) – 100 mV
ITERM
BZF
bq24074RGTT
10.5 V
4.4 V
VO(REG) – 100 mV
ITERM
BZF
bq24075RGTR
6.6 V
5.5 V
4.3 V
SYSOFF
CDU
bq24075RGTT
6.6 V
5.5 V
4.3 V
SYSOFF
CDU
(1)
The RGT package is available in the following options:
R - taped and reeled in quantities of 3,000 devices per reel.
T - taped and reeled in quantities of 250 devices per reel.
(2)
This product is RoHS compatible, including a lead concentration that does not exceed 0.1% of total product weight, and is suitable for
use in specified lead-free soldering processes. In addition, this product uses package materials that do not contain halogens, including
bromine (Br) or antimony (Sb) above 0.1% of total product weight.
over the 0°C to 125°C operating free-air temperature range (unless otherwise noted)
VALUE
UNIT
IN (with respect to VSS)
–0.3 to 28
V
BAT (with respect to VSS)
–0.3 to 5
V
VI
Input Voltage
OUT, EN1, EN2, CE, TS, ISET, PGOOD, CHG, ILIM, TMR,
–0.3 to 7
V
ITERM, SYSOFF, TD (with respect to VSS)
II
Input Current
IN
1.6
A
OUT
5
A
IO
Output Current (Continuous)
BAT (Discharge mode)
5
A
BAT (Charging mode)
1.5(2)
A
Output Sink Current
CHG, PGOOD
15
mA
TJ
Junction temperature
–40 to 150
°C
Tstg
Storage temperature
–65 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.
(2)
The IC operational charging life is reduced to 20,000 hours, when charging at 1.5A and 125°C. The thermal regulation feature reduces
charge current if the IC’s junction temperature reaches 125°C; thus without a good thermal design the maximum programmed charge
current may not be reached.
2
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Copyright © 2008, Texas Instruments Incorporated
Product Folder Link(s): bq24072 bq24073 bq24074 bq24075


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