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| BQ24266_15 Datasheet, PDF (7/41 Pages) Texas Instruments – bq24266 3A, 30V Standalone Single-Input, Single-Cell Switchmode Li-Ion Battery Charger | |||
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bq24266
SLUSBY5F â JUNE 2014 â REVISED AUGUST 2015
6.4 Thermal Information
THERMAL METRIC(1)
bq24266
RGE
(24 PINS)
UNIT
RθJA
RθJC(top)
RθJB
ÏJT
ÏJB
RJC(bot)
Junction-to-ambient thermal resistance
Junction-to-case (top) thermal resistance
Junction-to-board thermal resistance
Junction-to-top characterization parameter
Junction-to-board characterization parameter
Junction-to-case (bottom) thermal resistance
32.6
30.5
3.3
°C/W
0.4
9.3
2.6
(1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.
6.5 Electrical Characteristics
Circuit of , VUVLO < VIN < VOVP AND VIN > VBAT+ VSLP, TJ = â40°C to 125°C and TJ = 25°C for typical values (unless otherwise
noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
INPUT CURRENTS
VUVLO < VIN < VOVP and VIN>VBAT+VSLP
PWM switching
IIN
Supply current for control
VUVLO < VIN < VOVP and VIN>VBAT+VSLP
PWM NOT switching
15
mA
6.65
IBAT_HIZ
Battery discharge current in
High Impedance mode, (BAT,
SW, SYS)
0°C< TJ < 85°C, VIN = 5V, High-Z Mode
0°C< TJ < 85°C, VBAT = 4.2 V, VIN = 5V,
SCL, SDA = 0V or 1.8V, High-Z Mode
0°C< TJ < 85°C, VBAT = 4.2 V, VIN = 0V,
SCL, SDA = 0V or 1.8V
250
μA
15
μA
80
POWER-PATH MANAGEMENT
VSYSREG(LO)
System Regulation Voltage VBAT < VMINSYS, battery attached
VMINSYS
+ 80mV
VMINSYS
VMINSYS
+ 100mV + 120mV
V
VSYSREG(HI)
VMINSYS
System Regulation Voltage
Minimum System Voltage
Regulation Threshold
Battery FET turned off, no charging,
VBAT > 3.5V
VBAT + VDO(SYS_BAT) < 3.5V
VBATREG
VBATREG
VBATREG
V
+2.2% +2.5% +2.77%
3.44
3.5
3.55
V
tDGL(MINSYS_CMP)
Deglitch time, VMINSYS
comparator rising
8
ms
VBSUP1
Enter supplement mode
threshold
VBAT > VBUVLO
VBAT â
20mV
V
VBSUP2
Exit supplement mode
threshold
VBAT > VBUVLO
VBAT â
5mV
V
ILIM(DISCH)
Current Limit, Discharge or
Supplement Mode
VLIM(BGATE) = VBAT â VSYS
4
6
A
tDGL(SC1)
Deglitch Time, OUT Short
Circuit during Discharge or
Supplement Mode
Measured from IBAT = 7A to FET off
250
μs
tREC(SC1)
Recovery time, OUT Short
Circuit during Discharge or
Supplement Mode
2
s
Battery Range for BGATE
Operation
2.5
4.5
V
Copyright © 2014â2015, Texas Instruments Incorporated
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