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BQ24072RGTTG4 Datasheet(PDF) 2 Page - Texas Instruments

Part # BQ24072RGTTG4
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

BQ24072RGTTG4 Datasheet(HTML) 2 Page - Texas Instruments

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bq24072, bq24073
bq24074, bq24075, bq24079
SLUS810E – SEPTEMBER 2008 – REVISED JULY 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.
DESCRIPTION (CONTINUED)
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
VBAT(REG)
VOUT(REG)
VDPPM
MARKING
(1) (2)
FUNCTION
bq24072RGTR
6.6 V
4.2V
VBAT + 225 mV
VO(REG) – 100 mV
TD
CKP
bq24072RGTT
6.6 V
4.2V
VBAT + 225 mV
VO(REG) – 100 mV
TD
CKP
bq24073RGTR
6.6 V
4.2V
4.4 V
VO(REG) – 100 mV
TD
CKQ
bq24073RGTT
6.6 V
4.2V
4.4 V
VO(REG) – 100 mV
TD
CKQ
bq24074RGTR
10.5 V
4.2V
4.4 V
VO(REG) – 100 mV
ITERM
BZF
bq24074RGTT
10.5 V
4.2V
4.4 V
VO(REG) – 100 mV
ITERM
BZF
bq24075RGTR
6.6 V
4.2V
5.5 V
4.3 V
SYSOFF
CDU
bq24075RGTT
6.6 V
4.2V
5.5 V
4.3 V
SYSOFF
CDU
bq24079RGTR
6.6 V
4.1V
5.5 V
4.3 V
SYSOFF
ODI
bq24079RGTT
6.6 V
4.1V
5.5 V
4.3 V
SYSOFF
ODI
(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.
2
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Copyright © 2008–2010, Texas Instruments Incorporated
Product Folder Link(s): bq24072 bq24073 bq24074 bq24075, bq24079


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