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| BQ24382 Datasheet, PDF (8/18 Pages) Texas Instruments – Overvoltage and Overcurrent Protection IC and Li+ Charger Front-End Protection IC With LDO Mode | |||
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bq24380
bq24381
bq24382
SLUS805B â APRIL 2008 â REVISED MARCH 2009......................................................................................................................................................... www.ti.com
AC Adapter
VDC
GND
1 IN
1 mF
OUT 8
1 mF
RBAT
VBAT 6
100 kW
bq24380
FAULT 4
VSS
2
CE 5
Charging
Circuit
RPU
RFAULT
RCE
47 kW
47 kW
47 kW
SYSTEM
VOVP
VOVP-Vhys(OVP)
Input
Voltage
VO(REG)
UVLO
Output
Voltage
Output
Current
VO(REG)
IO(SC)
CE
Figure 17. Typical Application Circuit
tSStart
tCHK(SC)
tSStotpREC(SC)
tSStart
tDGL(BVOVP)
tPD(OVP)
5
tREC(OVP)
tDGL(PGOOD)
2
1
2
4
7
2
4
6
FAULT
BV(OVP)
BV(OVP)-Vhys(BVOVP)
Battery
Voltage
3
1. Short-circuit during start-up
2. Normal start-up condition
3. Battery overvoltage event
4. VUVLO < VIN < VOREG -- VOUT tracks VIN
5. Input overvoltage event
6. Input below UVLO
7. High-current event during normal operation
Figure 18. Timing Diagram
8
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Product Folder Link(s): bq24380 bq24381 bq24382
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