BQ24292I Datasheet, PDF (15/42 Pages) Texas Instruments – I2C Controlled 4.5A Single Cell USB/Adapter Charger With Narrow VDC Power Path Management and USB OTG

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PWM Switching Waveform
(VBUS 12V, VBAT 3.8V, ICHG 3A)
SW
5V/div
IL
1A/div
0
400ns/div
Figure 19.
REGN
5V/div
Boost Mode Enable (5Ω Load at VBUS)
VBUS
2V/div
IVBUS
0.5A/div
OTG
2V/div
4ms/div
Figure 21.
Boost Mode Load Transient(VBAT 3.8V)
VBUS
5V offset
200mV/div
IBAT
500mA/div
IVBUS
500mA/div
4ms/div
Figure 23.
bq24292i
SLUSBI4 – APRIL 2013
PFM Switching Waveform
(VBUS 9V, No Battery, ISYS 10 mA, Charge Disable)
SYS
3.4V offset
100mV/div
SW
5V/div
IL
1A/div
4us/div
Figure 20.
Boost Mode Switching Waveform
(VBAT 3.8V, ILOAD 1A)
SW
5V/div
IL
1A/div
400ns/div
Figure 22.
Boost Mode Hiccup Mode Over-Current Protection
(2 Ω Load at VBUS)
PMID
2V/div
VBUS
2V/div
IL
2A/div
IVBUS
1A/div
4ms/div
Figure 24.
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