Datasheet

bq24030, bq24031
bq24032A, bq24035, bq24038
SLUS618H –AUGUST 2004–REVISED OCTOBER 2009............................................................................................................................................... www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
over junction temperature range (0°C ≤ T
J
≤ 125°C) and the recommended supply voltage range (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
USB PIN INPUT CURRENT REGULATION
V
I(BAT)
> V
(LOWV)
, V
I(USB)
- V
I(BAT)
> V
(DO-MAX)
,
100
ISET2= Low, PSEL = Low, or no AC
(13)
USB input current range,
I
(USB)
mA
V
I(BAT)
> V
(LOWV)
,
bq24030/32A/35/38
(12)
V
I(USB)
- V
I(BAT)
> V
(DO-MAX)
, ISET2= High, 400 500
PSEL = Low, or no AC
(12)
BAT PIN CHARGING VOLTAGE REGULATION, V
O (BAT-REG)
+ V
(DO-MAX)
< V
CC
, I
TERM
< I
BAT(OUT)
≤ 1 A
bq24030/32A/35 4.2
bq24031 4.1 V
Battery charge
voltage
VBSEL = HI 4.36
V
O(BAT-REG)
bq24038
VBSEL = LO 4.2
T
A
= 25°C –0.5% 0.5%
Battery charge voltage regulation
accuracy
–1% 1%
CHARGE TERMINATION DETECTION
I
(TERM)
Charge termination detection range V
I(BAT)
< V
(RCH)
, I
(TERM)
= (K
(SET)
× V
(TERM)
)/ R
SET
10 150 mA
AC-charge termination detection
V
(TERM-AC)
V
I(BAT)
> V
(RCH)
, PSEL = High, ACPG = Low 235 250 265 mV
voltage, measured on ISET1
USB-charge termination detection V
I(BAT)
> V
(RCH)
, PSEL = Low or
V
(TAPER-USB)
95 100 130 mV
voltage, measured on ISET1 PSEL = High and ACPG = High
Deglitch time for termination t
FALL
= 100 ns, 10 mV overdrive,
T
DGL(TERM)
22.5 ms
detection I
CHG
increasing above or decreasing below threshold
TEMPERATURE SENSE COMPARATORS
V
LTF
High voltage threshold Temp fault at V(TS) > V
LTF
2.465 2.500 2.535 V
V
HTF
Low voltage threshold Temp fault at V(TS) < V
HTF
0.485 0.500 0.515 V
I
TS
Temperature sense current source 94 100 106 μA
Deglitch time for temperature fault R
(TMR)
= 50 kΩ, V
I(BAT)
increasing or decreasing above and
T
DGL(TF)
22.5 ms
detection
(14)
below; 100-ns fall time, 10-mv overdrive
BATTERY RECHARGE THRESHOLD
V
O(BAT-
V
O(BAT-
V
O(BAT-
V
RCH
Recharge threshold voltage
REG) REG) REG)
V
–0.075 –0.100 –0.125
R
(TMR)
= 50 kΩ, V
I(BAT)
increasing
Deglitch time for recharge
T
DGL(RCH)
or decreasing below threshold, 22.5 ms
detection
(14)
100-ns fall time, 10-mv overdrive
(12) With the PSEL= low, the bqTINY III-series defaults to USB charging. If USB input is ≤ V
BAT
, then the bqTINY III-series charges from the
AC input at the USB charge rate. In this configuration, the specification is 400 mA (min) and 500 mA (max).
(13) With the PSEL= low, the bqTINY III-series defaults to USB charging. If USB input is ≤ V
BAT
, then the bqTINY III-series charges from the
AC input at the USB charge rate. In this configuration, the specification is 80 mA (min) and 100 mA (max).
(14) All deglitch periods are a function of the timer setting and is modified in DPPM or thermal regulation modes by the percentages that the
program current is reduced.
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Product Folder Link(s): bq24030, bq24031 bq24032A, bq24035, bq24038