Datasheet

Vin
Viset
Vchg
Vpg
t-time-20ms/div
2V/div
2V/div
5V/div
2V/div
Vin
Viset
Vchg
Vpg
t-time-100ms/div
2V/div
2V/div
2V/div
5V/div
Vts
Viset
Vchg
Vpg
t-time-50ms/div
2V/div
2V/div
2V/div
500mV/div
Vin
Vchg
Vpg
Vout
BatteryDetectMode
t-time-20ms/div
2V/div
5V/div
5V/div
2V/div
Vin
Viset
Vts
Vout
t-time-5ms/div
2V/div
2V/div
1V/div
500mV/div
Viset
Vchg
Vts
Vout
1BatteryDetectCycle
Entered TTDM
t-time-10ms/div
5V/div
1V/div
1V/div
1V/div
bq24090, bq24091
bq24092, bq24093
SLUS968A –JANUARY 2010–REVISED FEBRUARY 2010 www.ti.com
TYPICAL OPERATIONAL CHARACTERISTICS
SETUP: bq2409x typical applications schematic; V
IN
= 5V, V
BAT
= 3.6V (unless otherwise indicated)
POWER UP, DOWN, OVP, DISABLE AND ENABLE WAVEFORMS
Figure 1. OVP 8V Adaptor - Hot Plug Figure 2. OVP from Normal Power-up
Operation – V
IN
0V → 5V → 6.8V →5V
10kΩ resistor from TS to GND. 10kΩ is shorted to disable the IC.
Fixed 10kΩ resistor, between TS and GND.
Figure 3. TS Enable and Disable Figure 4. Hot Plug Source w/No Battery – Battery Detection
Figure 5. Battery Removal – GND Removed 1st, 42 Ω Load Figure 6. Battery Removal with OUT and
TS Disconnect 1st, With 100 Ω Load
Continuous battery detection when not in TTDM.
10 Submit Documentation Feedback Copyright © 2010, Texas Instruments Incorporated
Product Folder Link(s): bq24090 bq24091