BQ24295 Datasheet, PDF (16/45 Pages) Texas Instruments – I2C Controlled 3A Single Cell USB Charger

bq24295
SLUSBC1 – SEPTEMBER 2013
PFM Switching in Buck Mode
(VBUS = 5V, VBAT = 3.6V, ICHG = 2.5A)
SYS3p7
100mV/div
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Input Current DPM Response Without Battery
(VBUS = 5V, IIN = 3A, No Battery, Charge Disable)
SYS3p5
500mV/div
SW
2V/div
IL
1A/div
4ms/div
Figure 17.
SYS3p8
500mV/div
Load Transient During Supplement Mode
(VBUS = 5V, IIN = 1.5A, VBAT = 3.8V)
ISYS
2A/div
IBAT
2A/div
IVBUS
2A/div
ISYS
2A/div
IVBUS
2A/div
2ms/div
Figure 18.
Boost Mode Switching
(VBAT = 3.8V, ILOAD = 1A)
SW
2V/div
IL
1A/div
20ms/div
Figure 19.
VBUS
200mV/div
IBAT
1A/div
Boost Mode Load Transient
(VBAT = 3.8V)
400ns/div
Figure 20.
IVBUS
1A/div
4ms/div
Figure 21.
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