BQ24160 Datasheet, PDF (5/44 Pages) Texas Instruments – 2.5A, Dual-Input, Single Cell Switchmode Li-Ion Battery Charger with Power Path

bq24160, bq24161
bq24163, bq24168
www.ti.com
SLUSAO0A – NOVEMBER 2011 – REVISED MARCH 2012
ELECTRICAL CHARACTERISTICS
Circuit of , V_SUPPLY = V_USB or V_IN (whichever is supplying the IC), V_UVLO < V_SUPPLY < V_OVP and V_SUPPLY > V_BAT+V_SLP,
T_J = –40°C – 125°C and T_J = 25ºC for typical values (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
INPUT CURRENTS
I_SUPPLY
I_BATLEAK
I_{BAT_HIZ}
Supply current for control (V_IN or V_USB)
Leakage current from BAT to the Supply
Battery discharge current in High Impedance mode,
(BAT, SW, SYS)
V_UVLO < V_SUPPLY < V_OVP and
V_SUPPLY > V_BAT+V_SLP
PWM switching
PWM NOT switching
0°C < T_J < 85°C, High-Z Mode
0°C < T_J < 85°C, V_BAT = 4.2V, V_USB = V_IN = 0V
0°C< T_J < 85°C, V_BAT = 4.2V, V_SUPPLY = 5V or 0V,
SCL, SDA = 0 V or 1.8V, High-Z Mode
15
5
175
5
55
POWER-PATH MANAGEMENT
V_SYS(REG)
System regulation voltage
V_BAT < V_MINSYS
Battery FET turned off
bq24160/1/8
bq24163
3.60
3.7
3.82
3.3
3.4
3.5
VBATREG VBATREG VBATREG
+ 1.5%
+ 3.0% + 4.17%
V_MINSYS
Minimum system regulation voltage
V_BAT < V_MINSYS, Input current limit
or V_INDPM active
bq24160/1/8
bq24163
3.4
3.5
3.62
3.1
3.2
3.3
V_BSUP1
Enter supplement mode threshold
V_BAT > 2.5V
VBAT
–30mV
V_BSUP2
Exit supplement mode threshold
V_BAT > 2.5V
VBAT
–10mV
I_{LIM(discharge)} Current limit, discharge or supplement mode
Current monitored in internal FET only.
7
t_DGL(SC1)
Deglitch time, SYS short circuit during discharge or
supplement mode
Measured from (V_BAT – V_SYS) = 300mV to BAT high-
impedance
250
t_REC(SC1)
Recovery time, SYS short circuit during discharge or
supplement mode
60
Battery range for BGATE and supplement mode
operation
2.5
4.5
BATTERY CHARGER
R_ON(BAT-SYS) Internal battery charger MOSFET on-resistance
Measured from BAT to SYS,
V_BAT = 4.2V
YFF pkg
RGE pkg
37
57
50
70
V_BATREG
Charge Voltage
Voltage regulation accuracy
Operating in voltage regulation, Programmable range
3.5
4.44
–1%
1%
I_CHARGE
Fast charge current range
Fast charge current accuracy
V_BATSHRT ≤ V_BAT < V_BAT(REG) programmable range
0°C to 125°C
550
–10%
2500
+10%
V_BATSHRT
Battery short circuit threshold
100mV Hysteresis
bq24161/3/8
bq24160
1.9
2.0
2.1
2.9
3.0
3.1
I_BATSHRT
Battery short circuit current
V_BAT < V_BATSHRT
50
t_DGL(BATSHRT)
Deglitch time for battery short circuit to fastcharge
transition
32
I_TERM
t_DGL(TERM)
V_RCH
t_DGL(RCH)
V_DETECT
Termination charge current accuracy
Deglitch time for charge termination
Recharge threshold voltage
Deglitch time
Battery detection threshold
I_TERM = 50mA
I_TERM ≥ 100mA
Both rising and falling, 2mV overdrive, t_RISE, t_FALL = 100ns
Below V_BATREG
VBAT falling below VRCH, tFALL=100ns
During battery detection source cycle
During battery detection sink cycle
–35%
–15%
+35%
+15%
32
120
32
3.3
3.0
I_DETECT
Battery detection current before charge done (sink
Termination enabled (EN_TERM = 1)
2.5
current)
t_DETECT
V_IH(CD)
V_IL(CD)
Battery detection time
CD Input high logic level
CD Input low logic level
Termination enabled (EN_TERM = 1)
250
1.3
0.4
UNIT
mA
μA
μA
μA
V
V
V
V
V
A
μs
ms
V
mΩ
V
mA
V
mA
ms
ms
mV
ms
V
mA
ms
V
V
Copyright © 2011–2012, Texas Instruments Incorporated
Submit Documentation Feedback
5
Product Folder Link(s): bq24160 bq24161 bq24163 bq24168