 English |
|
|
|
|
|
|
|
| BQ24072 Datasheet, PDF (14/38 Pages) Texas Instruments – 1.2A USB-FRIENDLY Li-Ion BATTERY CHARGER AND POWER-PATH MANAGEMENT IC | |||
| |||
| ◁ |
bq24072, bq24073
bq24074, bq24075
SLUS810A â SEPTEMBER 2008 â REVISED DECEMBER 2008...................................................................................................................................... www.ti.com
EXPLANATION OF DEGLITCH TIMES AND COMPARATOR HYSTERESIS
Figures not to scale
VOVP
VOVP - Vhys(OVP)
VIN
VBAT + VIN(DT)
VBAT + VIN(DT) - Vhys(INDT)
UVLO
UVLO - Vhys(UVLO)
t < tDGL(OVP)
Typical Input Voltage
Operating Range
PGOOD
tDGL(PGOOD)
tDGL(OVP)
tDGL(PGOOD)
tDGL(NO-IN)
Figure 29. Power-Up, Power-Down, Power Good Indication
VLOWV
VBAT
t < tDGL1(LOWV)
tDGL1(LOWV)
tDGL1(LOWV)
tDGL2(LOWV)
t < tDGL2(LOWV)
ICHG
IPRE-CHG
Pre-Charge
Fast-Charge
Fast-Charge
Pre-Charge
Figure 30. Pre- to Fast-Charge, Fast- to Pre-Charge Transition â tDGL1(LOWV), tDGL2(LOWV)
VRCH
VBAT
t < tDGL(RCH)
tDGL(RCH)
Re-Charge
Figure 31. Recharge â tDGL(RCH)
14
Submit Documentation Feedback
Copyright © 2008, Texas Instruments Incorporated
Product Folder Link(s): bq24072 bq24073 bq24074 bq24075
|
▷ |
German
Russian
Spanish
Italian
Polish
Chinese
Japanese
Korean
French
Portuguese