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| BQ24072T_1 Datasheet, PDF (4/34 Pages) Texas Instruments – 1.5A USB-Friendly Li-Ion Battery Charger and Power-Path Management IC | |||
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bq24072T
bq24075T, bq24079T
SLUS937A â DECEMBER 2009 â REVISED APRIL 2010
www.ti.com
ELECTRICAL CHARACTERISTICS
Over junction temperature range (0°C < TJ < 125°C) and the recommended supply voltage range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP
MAX UNIT
INPUT
VUVLO
VHYS-
UVLO
Under-voltage lock-out
Hysteresis on UVLO
VIN-DT
Input power detection threshold
VHYS-INDT
tDGL(PGOO
D)
VOVP
VHYS-OVP
tBLK(OVP)
Hysteresis on VIN-DT
Deglitch time, input power detected
status
Input overvoltage protection threshold
Hysteresis on OVP
Input over-voltage blanking time
tREC(OVP) Input over-voltage recovery time
VIN: 0V â 4V
VIN: 4V â 0V
(Input power detected if VIN > VBAT + VIN-DT)
VBAT = 3.6V, VIN: 3.5V â 4V
VBAT = 3.6V, VIN: 4V â 3.5V
Time measured from VIN: 0V â 5V,
1ms rise-time to PGOOD = LO
VIN: 5V â 7V
VIN: 7V â 5V
Time measured from VIN: 11V â 5V 1ms
fall-time to PGOOD = LO
3.2
3.3
200
55
80
20
1.2
6.4
6.6
240
50
1.2
3.4 V
300 mV
140 mV
mV
ms
6.8 V
mV
ms
ms
ILIM, ISET SHORT CIRCUIT TEST
ISC
Current source
VSC
QUIESCENT CURRENT
1.3
mA
520
mV
IBAT(PDWN Sleep current into BAT pin
)
IIN(STDBY) Standby current into IN pin
ICC
Active supply current, IN pin
POWER PATH
CE = LO or HI, input power not detected, no load on OUT pin
EN1= HI, EN2=HI, VIN ⤠6V
EN1= HI, EN2=HI, VIN > 6V
CE = LO, VIN = 6V, no load on OUT pin,
VBAT > VBAT(REG), (EN1,EN2)â (HI,HI)
6.5 mA
50
mA
200
1.5 mA
VDO(IN-
OUT)
VDO(BAT-
OUT)
VO(REG)
VIN â VOUT
VBAT â VOUT
OUT pin voltage regulation (bq24072T)
OUT pin voltage regulation (bq24075T,
bq24079T)
VIN = 4.3V, IIN = 1A, VBAT = 4.2V
IOUT = 1A, VIN = 0V, VBAT > 3V
VIN > VOUT + VDO(IN-OUT) , VBAT< 3.2 V
VIN > VOUT + VDO(IN-OUT) , VBAT ⥠3.2 V
VIN > VOUT + VDO(IN-OUT)
300
475 mV
50
100 mV
3.3
3.4
3.5
VBAT + VBAT +
VBAT +
150 mV 225 mV 270 mV V
5.4
5.5
5.6
EN1 = LO, EN2 = LO
90
95
100 mA
IIN-MAX
Maximum input current
KILIM
Maximum input current factor
EN1 = HI, EN2 = LO
EN2 = HI, EN1 = LO
ILIM ⥠500mA
200mA < ILIM < 500mA
450
475
KILIM/RIL IM
1500 1600
1330 1512
500 mA
A
1700
Aâ¦
1700
IIN-MAX
VIN-LOW
Programmable input current limit range
Input voltage threshold when input
current is reduced
EN2 = HI, EN1 = LO, RILIM = 8k⦠to 1.1kâ¦
EN2 = LO, EN1 = X
200
1500 mA
4.35
4.5
4.63 V
VDPPM
Output voltage threshold when charging
current is reduced
bq24072T
bq24075T, bq24079T
VO(REG)
â180 mV
VO(REG)
â100
mV
VO(REG)
â30 mV
V
4.2
4.3
4.4
VBSUP1 Enter battery supplement mode
VOUT falling, Supplement mode entered when VOUT < VBSUP1
VBAT â
40mV
V
VBSUP2 Exit battery supplement mode
VOUT rising, Supplement mode exited when VOUT > VBSUP2
VBAT â
20mV
V
VO(SC1)
Output short-circuit detection threshold,
power-on
0.8
0.9
1.0 V
VO(SC2)
Output short-circuit detection threshold,
supplement mode VBAT â VOUT > VO(SC2)
indicates short-circuit
200
250
300 mV
4
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Copyright © 2009â2010, Texas Instruments Incorporated
Product Folder Link(s): bq24072T bq24075T bq24079T
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