Data Sheet

bq24072 , bq24073 , bq24074 , bq24075 , bq24079
SLUS810K –SEPTEMBER 2008–REVISED MARCH 2015 www.ti.com
5 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 lets the battery supplement the system
current requirements when the adapter cannot deliver the peak system currents, thus 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.
6 Device Comparison Table
OPTIONAL
PART NUMBER
(1) (2)
V
OVP
V
BAT(REG)
V
OUT(REG)
V
DPPM
MARKING
FUNCTION
bq24072 6.6 V 4.2 V V
BAT
+ 225 mV V
O(REG)
– 100 mV TD CKP
bq24073 6.6 V 4.2 V 4.4 V V
O(REG)
– 100 mV TD CKQ
bq24074 10.5 V 4.2 V 4.4 V V
O(REG)
– 100 mV ITERM BZF
bq24075 6.6 V 4.2 V 5.5 V 4.3 V SYSOFF CDU
bq24079 6.6 V 4.1 V 5.5 V 4.3 V SYSOFF ODI
(1) For all available packages, see the orderable addendum at the end of the datasheet
(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.
4 Submit Documentation Feedback Copyright © 2008–2015, Texas Instruments Incorporated
Product Folder Links: bq24072 bq24073 bq24074 bq24075 bq24079