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| BQ25040 Datasheet, PDF (8/25 Pages) Texas Instruments – 1.1A, Single-Input, Single Cell Li-Ion Battery Charger With 50mA LDO and 2.3A Production Test Support | |||
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bq25040
SLUS910B â MARCH 2009 â REVISED MARCH 2009 ...................................................................................................................................................... www.ti.com
TYPICAL CHARACTERISTICS
USB500 Mode, Circuit of Figure 2, TA = 25°C
Adapter Plugin With Battery Connected Showing Startup
With PG, CHG, LDO
VEN/SET = 0V
VEN/SET = 0 V
VIN
5 V/div
VEN/SET
Charger Enable Using EN/SET
5 V/div
VLDO
IOUT
5 V/div
200 mA/div
VLDO
IOUT
5 V/div
200 mA/div
VCHG
VPG
VEN/SET
VLDO
20 ms/div
Figure 3.
2 V/div
2 V/div
Charger Disable Using EN/SET
5 V/div
5 V/div
VCHG
2 V/div
20 ms/div
Figure 4.
PTM Load Transient
ROUT = 100⦠to 2.3â¦
Circuit of Figure 2
ROUT = 100 W to 2.3 W
VOUT
200 mA/div
IOUT
200 mA/div
VCHG
VEN/SET
2 V/div
400 ms/div
Figure 5.
USB500 to ISET Mode Transition
Using EN/SET
5 V/div
IOUT USB500
ISET Mode
200 mA/div
1 ms/div
Figure 7.
IOUT
VEN/SET
1 A/div
40 ms/div
Figure 6.
USB500 to USB100 Mode Transition
Using EN/SET
5 V/div
IOUT USB500
USB100
1 ms/div
Figure 8.
200 mA/div
8
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