Datasheet

bq24072T
bq24075T, bq24079T
www.ti.com SLUS937A –DECEMBER 2009–REVISED APRIL 2010
ABSOLUTE MAXIMUM RATINGS
(1) (2)
over 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) –0.3V to 5V
Input voltage
OUT, EN1, EN2, CE, TS, ISET, PGOOD, CHG, ILIM, VREF, ITERM, SYSOFF, TD
–0.3 TO 7 V
(with respect to VSS)
Input current IN 1.6 A
OUT 5A
Output current
BAT (Discharge mode) 5A
(Continuous)
BAT (Charging mode) 1.5A
Output sink current CHG, PGOOD 15 mA
Junction temperature, T
J
–40°C to 150°C
Storage temperature, T
STG
–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.
(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.
DISSIPATION RATINGS
T
A
< 25°C DERATING FACTOR
PACKAGE R
qJA
R
qJC
POWER RATING ABOVE T
A
= 25°C
QFN-16 RGT 39.47 °C/W 2.4°C/W 2.3 W 225 mW
RECOMMENDED OPERATING CONDITIONS
over operating free-air temperature range (unless otherwise noted)
MIN MAX UNITS
IN voltage range 4.35 26 V
V
IN
IN operating voltage range 4.35 6.4 V
I
IN
Input current, IN pin 1.5 A
I
OUT
Current, OUT pin 4.5 A
I
BAT
Current, BAT pin (Discharging) 4.5 A
I
CHG
Current, BAT pin (Charging) 1.5
(1)
A
T
J
Junction Temperature 0 125 °C
R
ILIM
Maximum input current programming resistor 1.07 7.5 kΩ
R
ISET
Fast-charge current programming resistor
(2)
590 3000 Ω
R
ITERM
Termination current programming resistor 0 15 kΩ
R
TMR
Timer programming resistor 18 72 kΩ
(1) 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) Use a 1% tolerance resistor RISET to avoid issues with the R
ISET
short test when using the maximum charge current setting.
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