Datasheet

Viset
Vchg
V_0.1 _OUTW
Vout
BatteryDeclared Absent
t-time-20ms/div
100mV/div
1V/div
1V/div
5V/div
Viset
Vchg
Vts
Vout
1BatteryDetectCycle
Entered TTDM
t-time-10ms/div
5V/div
1V/div
1V/div
1V/div
Vin
Viset
Vts
Vout
t-time-5ms/div
2V/div
2V/div
1V/div
500mV/div
Vin
Vchg
Vpg
Vout
BatteryDetectMode
t-time-20ms/div
2V/div
5V/div
5V/div
2V/div
Vts
Viset
Vchg
Vpg
t-time-50ms/div
2V/div
2V/div
2V/div
500mV/div
bq24050
bq24052
bq24055
SLUS940B –SEPTEMBER 2009–REVISED JUNE 2012 www.ti.com
TYPICAL OPERATIONAL CHARACTERISTICS (continued)
SETUP: bq24055 typical applications schematic; V
IN
= 5V, V
BAT
= 3.6V (unless otherwise indicated)
R
ISET
= 1k; I
OUT_FAST_CHG
= 540mA; R
PAC_TERM
= 2k; I
OUT_PRE_CHG
= 108mA; I
OUT_TERM
= 54mA
10kΩ resistor from TS to GND. 10kΩ is shorted to disable the IC.
Fixed 10kΩ resistor, between TS and GND.
Figure 7. TS Enable and Disable Figure 8. Hot Plug Source w/No Battery – Battery
Detection
Figure 9. Battery Removal – GND Removed 1st, Figure 10. Battery Removal with OUT and
42-Ω Load TS Disconnect 1st, With 100–Ω Load
Continuous battery detection when not in TTDM.
Figure 11. Battery Removal With Fixed TS = 0.5V
12 Copyright © 2009–2012, Texas Instruments Incorporated