SLUS937A – DECEMBER 2009 – REVISED APRIL 2010
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ELECTRICAL CHARACTERISTICS
Over junction temperature range (0°C < T
J
< 125°C) and the recommended supply voltage range (unless otherwise noted)
PARAMETER
INPUT
V
UVLO
V
HYS-
UVLO
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Under-voltage lock-out
Hysteresis on UVLO
Input power detection threshold
Hysteresis on V
IN-DT
V
IN
: 0V
→
4V
V
IN
: 4V
→
0V
(Input power detected if V
IN
> V
BAT
+ V
IN-DT
)
V
BAT
= 3.6V, V
IN
: 3.5V
→
4V
V
BAT
= 3.6V, V
IN
: 4V
→
3.5V
Time measured from V
IN
: 0V
→
5V,
1ms rise-time to PGOOD = LO
VIN: 5V
→
7V
VIN: 7V
→
5V
3.2
200
55
20
3.3
3.4
300
V
mV
mV
mV
V
IN-DT
V
HYS-INDT
80
140
t
DGL(PGOO
Deglitch time, input power detected
status
D)
V
OVP
V
HYS-OVP
t
BLK(OVP)
t
REC(OVP)
Input overvoltage protection threshold
Hysteresis on OVP
Input over-voltage blanking time
Input over-voltage recovery time
1.2
6.4
6.6
240
50
6.8
ms
V
mV
ms
ms
Time measured from V
IN
: 11V
→
5V 1ms
fall-time to PGOOD = LO
1.2
ILIM, ISET SHORT CIRCUIT TEST
I
SC
V
SC
QUIESCENT CURRENT
I
BAT(PDWN
)
Current source
1.3
520
mA
mV
Sleep current into BAT pin
Standby current into IN pin
Active supply current, IN pin
CE = LO or HI, input power not detected, no load on OUT pin
EN1= HI, EN2=HI, V
IN
≤
6V
EN1= HI, EN2=HI, V
IN
> 6V
CE = LO, V
IN
= 6V, no load on OUT pin,
V
BAT
> V
BAT(REG)
, (EN1,EN2)≠(HI,HI)
6.5
50
200
1.5
mA
mA
mA
I
IN(STDBY)
I
CC
POWER PATH
V
DO(IN-
OUT)
V
IN
– V
OUT
V
BAT
– V
OUT
V
IN
= 4.3V, I
IN
= 1A, V
BAT
= 4.2V
I
OUT
= 1A, V
IN
= 0V, V
BAT
> 3V
V
IN
> V
OUT
+ V
DO(IN-OUT)
, V
BAT
< 3.2 V
3.3
300
50
3.4
475
100
3.5
V
BAT
+
270 mV
5.6
100
500
mV
mV
V
DO(BAT-
OUT)
OUT pin voltage regulation (bq24072T)
V
O(REG)
OUT pin voltage regulation (bq24075T,
bq24079T)
V
IN
> V
OUT
+ V
DO(IN-OUT)
, V
BAT
≥
3.2 V
V
IN
> V
OUT
+ V
DO(IN-OUT)
EN1 = LO, EN2 = LO
V
BAT
+ V
BAT
+
150 mV 225 mV
5.4
90
450
5.5
95
475
K
ILIM
/R
IL
1500
1330
200
4.35
V
O(REG)
–180 mV
4.2
4.5
V
O(REG)
–100
mV
4.3
V
BAT
–
40mV
V
BAT
–
20mV
0.8
0.9
IM
V
mA
mA
A
I
IN-MAX
Maximum input current
EN1 = HI, EN2 = LO
EN2 = HI, EN1 = LO
K
ILIM
I
IN-MAX
V
IN-LOW
Maximum input current factor
Programmable input current limit range
Input voltage threshold when input
current is reduced
Output voltage threshold when charging
current is reduced
ILIM
≥
500mA
200mA < ILIM < 500mA
EN2 = HI, EN1 = LO, R
ILIM
= 8kΩ to 1.1kΩ
EN2 = LO, EN1 = X
1600
1512
1700
1700
1500
4.63
V
O(REG)
–30 mV
4.4
AΩ
mA
V
V
DPPM
bq24072T
bq24075T, bq24079T
V
V
BSUP1
V
BSUP2
V
O(SC1)
V
O(SC2)
Enter battery supplement mode
Exit battery supplement mode
Output short-circuit detection threshold,
power-on
Output short-circuit detection threshold,
supplement mode V
BAT
– V
OUT
> V
O(SC2)
indicates short-circuit
VOUT falling, Supplement mode entered when V
OUT
< V
BSUP1
VOUT rising, Supplement mode exited when V
OUT
> V
BSUP2
V
V
1.0
V
200
250
300
mV
4
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