Datasheet

bq24230
bq24232
SLUS821E –OCTOBER 2008–REVISED JANUARY 2014 www.ti.com
Electrical Characteristics (continued)
over operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Input voltage threshold when input
V
IN-DPM
EN2 = LO, EN1 = X 4.35 4.50 4.63 V
current is reduced
Output voltage threshold when V
O(REG)
– V
O(REG)
– V
O(REG)
–
V
DPPM
V
charging current is reduced 180 mV 100 mV 30 mV
V
BAT
= 3.6 V, R
ILIM
= 1.5 kΩ, R
LOAD
= 10 Ω →2 V
OUT
≤ V
BAT
V
BSUP1
Enter battery supplement mode V
Ω –40 mV
V
BAT
= 3.6 V, R
ILIM
= 1.5 kΩ, R
LOAD
= 2 Ω →10 V
OUT
≥
V
BSUP2
Exit battery supplement mode V
Ω V
BAT
–20 mV
Output short-circuit detection V
IN
> UVLO and V
IN
> V
BAT
+V
IN(DT)
V
O(SC1)
0.8 0.9 1 V
threshold, power-on
Output short-circuit detection V
IN
> UVLO and V
IN
> V
BAT
+V
IN(DT)
threshold, supplement mode
V
O(SC2)
200 250 300 mV
V
BAT
– V
OUT
> V
O(SC2)
indicates
short circuit
Deglitch time, supplement mode
t
DGL(SC2)
250 μs
short circuit
Recovery time, supplement mode
t
REC(SC2)
60 ms
short circuit
BATTERY CHARGER
Source current for BAT pin short- V
BAT
= 1.5 V
I
BAT(SC)
4 7.5 11 mA
circuit detection
BAT pin short-circuit detection V
BAT
rising
V
BAT(SC)
1.6 1.8 2 V
threshold
V
BAT(REG)
Battery charge voltage 4.16 4.20 4.23 V
Precharge to fast-charge transition V
IN
> UVLO and V
IN
> V
BAT
+ V
IN(DT)
V
LOWV
2.9 3 3.1 V
threshold
Deglitch time on precharge to fast-
t
DGL1(LOWV)
25 ms
charge transition
Deglitch time on fast-charge to
t
DGL2(LOWV)
25 ms
precharge transition
V
BAT(REG)
> V
BAT
> V
LOWV
, V
IN
= 5 V, CE = LO,
Battery fast-charge current range 25 500 mA
EN1 = LO, EN2 = HI
CE = LO, EN1= LO, EN2 = HI,
I
CHG
V
BAT
> V
LOWV
, V
IN
= 5 V, I
IN
max > I
CHG
, no load
Battery fast-charge current K
ISET
/R
ISET
A
on OUT pin, thermal loop and DPM loop not
active
K
ISET
Fast-charge current factor 25 mA ≥ I
CHG
≥ 500 mA 797 870 975 AΩ
I
PRECHG
Precharge current 2.5 mA ≥ I
PRECHG
≥ 30 mA 70 88 106 AΩ
CE = LO, (EN1,EN2) ≠ (LO,LO), A
0.09*I
CHG
0.1*I
CHG
0.11*I
CHG
V
BAT
> V
RCH
, t < t
MAXCH
, V
IN
= 5 V, DPM loop
and thermal loop not active
Termination comparator threshold
I
TERM
for termination detection
CE = LO, (EN1,EN2) = (LO,LO),
0.027*I
CHG
0.033*I
CHG
0.040*I
CHG
V
BAT
> V
RCH
, t < t
MAXCH
, V
IN
= 5 V, DPM loop
and thermal loop not active
Termination current threshold A
I
TERM
I
TERM
= 0% to 50% of I
CHG
K
ITERM
*R
ITERM
/R
ISET
factor (bq24232)
Current for external termination-
I
BIAS(ITERM)
72 75 78 μA
setting resistor
CE = LO, (EN1,EN2) ≠ (LO,LO), A
0.024 0.030 0.036
V
BAT
> V
RCH
, t < t
MAXCH
, V
IN
= 5 V, DPM loop
K factor for termination detection
and thermal loop not active
K
ITERM
threshold (externally set)
CE = LO, (EN1,EN2) = (LO,LO),
(bq24232)
0.009 0.010 0.011
V
BAT
> V
RCH
, t < t
MAXCH
, V
IN
= 5 V, DPM loop
and thermal loop not active
Current for external μA
I
BIAS(ITERM)
termination_setting resistor 72 75 78
(bq24232)
t
DGL(TERM)
Deglitch time, termination detected 25 ms
V
O(REG)
V
O(REG)
–100 V
O(REG)
V
RCH
Recharge detection threshold V
IN
> UVLO and V
IN
> V
BAT
+V
IN(DT)
V
–140 mV mV –60 mV
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