BQ24188_15 Datasheet, PDF (7/52 Pages) Texas Instruments – bq24188 2A, 30V, Host-Controlled Single-Input, Single Cell Switchmode Li-Ion Battery Charger with Power Path Management and USB-OTG Support

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bq24188
SLUSC44A – DECEMBER 2014 – REVISED MAY 2015
Electrical Characteristics (continued)
Circuit of Figure 7, V_UVLO < V_IN < V_OVP AND V_IN > V_BAT+ V_SLP, T_J = –40°C to 125°C and T_J = 25°C for typical values (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
BATTERY CHARGER
R_ON(BAT-SYS)
Internal battery charger
MOSFET on-resistance
Measured from BAT to SYS,
V_BAT = 4.2V, High-Z mode
YFF
RGE
17
25
mΩ
32
47
Charge Voltage
Operating in voltage regulation, Programmable Range
3.5
4.44
V
RGE Package Voltage
Regulation Accuracy
T_J = 0°C to 50°C
-0.5%
0.5%
RGE Package Voltage
Regulation Accuracy
T_J = 0°C to 85°C
-0.7%
0.7%
V_BATREG
YFF Package Voltage
Regulation Accuracy
RGE and YFF Package
Voltage Regulation Accuracy
T_J = 0°C to 85°C
T_J = 0°C to 125°C
-0.75%
-1.0%
0.75%
1.0%
YFF Package Voltage
Regulation Accuracy
T_J = 25°C
-29.2
28.1
YFF Package Voltage
Regulation Accuracy
T_J = 0°C to 85°C
-32.0
29.3
mV
YFF Package Voltage
Regulation Accuracy
T_J = 0°C to 125°C
-40.2
29.3
I_CHARGE
V_BATSHRT
V_{BATSHRT_HYS}
Fast Charge Current Range
Fast Charge Current
Accuracy
Battery short circuit threshold
Hysteresis for V_BATSHRT
Deglitch time for battery short
to fastcharge transition
V_BATSHRT ≤ V_BAT < V_BAT(REG)
500 mA ≤ I_CHARGE ≤ 1A
I_CHARGE > 1000 mA
Battery voltage falling
V_BAT rising or falling
500
2000
mA
–10%
10%
–5%
5%
1.9
2
2.1
V
100
mV
1
ms
I_BATSHRT
Battery short circuit charge
current
V_BAT < V_BATSHRT
33.5
50
66.5
mA
I_TERM
t_DGL(TERM)
V_RCH
t_DGL(RCH)
V_DET(SRC1)
Termination charge current
Deglitch time for charge
termination
Recharge threshold voltage
Deglitch time
Battery detection voltage
threshold
(TE = 1)
I_TERM ≤ 50 mA
50 mA < _ITERM < 200 mA
I_TERM ≥ 200 mA
Both rising and falling, 2-mV over-drive,
t_RISE, t_FALL=100ns
Below V_BATREG
V_BAT falling below V_RCH, t_FALL=100ns
During current source (Turn I_{BATSHRT off})
–30%
–15%
–15%
32
100
120
32
30%
15%
10%
ms
150
mV
ms
V_RCH
V
V_DET(SRC2)
During current source (Turn I_{BATSHRT on})
V_RCH
– 200mV
V
V_DET(SNK)
I_DETECT
Battery detection current
before charge done (sink
current)
During current sink
Termination enabled (TE = 1)
V_BATSHRT
V
7
mA
t_DETECT(SRC)
Battery detection time
(sourcing current)
Termination enabled (TE = 1)
2
s
t_DETECT(SNK)
Battery detection time (sinking
current)
Termination enabled (TE = 1)
250
ms
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