 English |
|
|
|
|
|
|
|
| BQ24075T Datasheet, PDF (4/29 Pages) Texas Instruments – 1.5A USB-Friendly Li-Ion Battery Charger and Power-Path Management IC | |||
| |||
| ◁ |
bq24075T
bq24079T
SLUS937 â DECEMBER 2009
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
VIN-DT
VHYS-INDT
tDGL(PGOOD)
Under-voltage lock-out
Hysteresis on UVLO
Input power detection threshold
Hysteresis on VIN-DT
Deglitch time, input power detected status
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,
1μs rise-time to PGOOD = LO
3.2
3.3
200
55
80
20
1.2
3.4 V
300 mV
140 mV
mV
ms
VOVP
VHYS-OVP
tBLK(OVP)
tREC(OVP)
Input over-voltage protection threshold
Hysteresis on OVP
Input over-voltage blanking time
Input over-voltage recovery time
VIN: 5V â 7V
VIN: 7V â 5V
Time measured from VIN: 11V â 5V 1μs
fall-time to PGOOD = LO
6.4
6.6
240
50
1.2
6.8 V
mV
μs
ms
ILIM, ISET SHORT CIRCUIT TEST
ISC
Current source
VSC
QUIESCENT CURRENT
1.3
mA
520
mV
IBAT(PDWN) Sleep current into BAT pin
CE = LO or HI, input power not detected, no
load on OUT pin
6.5 μA
IIN(STDBY)
Standby current into IN pin
ICC
Active supply current, IN pin
POWER PATH
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)
50
μA
200
1.5 mA
VDO(IN-OUT)
VDO(BAT-OUT)
VO(REG)
VIN â VOUT
VBAT â VOUT
OUT pin voltage regulation
VIN = 4.3V, IIN = 1A, VBAT = 4.2V
IOUT = 1A, VIN = 0V, VBAT > 3V
VIN > VOUT + VDO(IN-OUT)
EN1 = LO, EN2 = LO
300
50
5.4
5.5
90
95
475 mV
100 mV
5.6 V
100 mA
IIN-MAX
KILIM
Maximum input current
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
4.35
4.5
1500 mA
4.63 V
VDPM
Output voltage threshold when charging current
is reduced
4.2
4.3
4.4 V
VBSUP1
VBSUP2
VO(SC1)
Enter battery supplement mode
Exit battery supplement mode
Output short-circuit detection threshold,
power-on
VOUT falling, Supplement mode entered
when VOUT < VBSUP1
VOUT rising, Supplement mode exited
when VOUT > VBSUP2
VBAT â
40mV
VBAT â
20mV
0.8
0.9
V
V
1.0 V
VO(SC2)
Output short-circuit detection threshold,
supplement mode VBAT â VOUT > VO(SC2)
indicates short-circuit
200
250
300 mV
tDGL(SC2)
Deglitch time, supplement mode short circuit
tREC(SC2)
Recovery time, supplement mode short circuit
BATTERY CHARGER
250
μs
60
ms
IBAT(SC)
VBAT(SC)
VBAT(REG)
Source current for BAT pin short-circuit detection
BAT pin short-circuit detection threshold
Battery charge voltage
bq24075T
bq24079T
4
1.6
4.16
4.059
7.5
1.8
4.20
4.100
11 mA
2.0 V
4.24
V
4.141
VLOWV
Pre-charge to fast-charge transition threshold
2.9
3
3.1 V
4
Submit Documentation Feedback
Copyright © 2009, Texas Instruments Incorporated
Product Folder Link(s): bq24075T bq24079T
|
▷ |
German
Russian
Spanish
Italian
Polish
Chinese
Japanese
Korean
French
Portuguese