bq24296
bq24297
SLUSBP6A –SEPTEMBER 2013–REVISED OCTOBER 2013
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PWM Switching in Buck Mode
(VBUS = 5V, No Battery, ISYS = 40mA, Charge Disable)
Charge Disable
STAT
2V/div
CE
5V/div
IL
1A/div
SW
5V/div
SW
IBAT
2V/div
1A/div
4ms/div
400ns/div
Figure 17.
Figure 18.
PFM Switching in Buck Mode
(VBUS = 5V, VBAT = 3.6V, ICHG = 2.5A)
Input Current DPM Response Without Battery
(VBUS = 5V, IIN = 3A, No Battery, Charge Disable)
SYS3p5
500mV/div
SYS3p7
100mV/div
ISYS
2A/div
SW
2V/div
IL
1A/div
IVBUS
2A/div
4ms/div
2ms/div
Figure 19.
Figure 20.
Load Transient During Supplement Mode
(VBUS = 5V, IIN = 1.5A, VBAT = 3.8V)
Boost Mode Switching
(VBAT = 3.8V, ILOAD = 1A)
SYS3p8
500mV/div
ISYS
2A/div
SW
2V/div
IBAT
2A/div
IVBUS
2A/div
IL
1A/div
20ms/div
400ns/div
Figure 21.
Figure 22.
16
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