 English |
|
|
|
|
|
|
|
| BQ24085_17 Datasheet, PDF (12/42 Pages) Texas Instruments – 750-mA Single-Chip Li-Ion and Li-Pol Charge Management IC With Thermal Regulation | |||
| |||
| ◁ |
bq24085, bq24086, bq24087, bq24088
SLUS784E â DECEMBER 2007 â REVISED DECEMBER 2015
Overview (continued)
IN
VREF
VTJ
Thermal
Loop
BATTERY
SWITCH I(BAT)
V(BAT)
VO(REG)
System Voltage
Regulation Loop
OUT
I(BAT) / K(SET)
ISET
BAT
Figure 9. Thermal Regulation Circuit
A modified charge cycle, with the thermal loop active, is shown in Figure 10.
VO(REG)
IO(OUT)
FAST-CHARGE
CURRENT
PRE-CHARGE
CURRENT AND
TERMINATION
THRESHOLD
VO(LOWV)
Pre-
Conditioning
Phase
Thermal
Regulation
Phase
Current
Regulation
Phase
Voltage Regulation and
Charge Termination
Phase
Battery
Voltage,
V(BAT)
Battery Current,
I(BAT)
Charge
Complete
Status,
Charger
Off
IO(PRECHG),I(TERM)
T(THREG)
temperature , Tj
DONE
www.ti.com
T(PRECHG)
T(CHG)
Figure 10. Charge Profile, Thermal Loop Active
DONE
12
Submit Documentation Feedback
Copyright © 2007â2015, Texas Instruments Incorporated
Product Folder Links: bq24085 bq24086 bq24087 bq24088
|
▷ |
German
Russian
Spanish
Italian
Polish
Chinese
Japanese
Korean
French
Portuguese