Texas Instruments BQ2419X I²C Controlled 4.5A Single Cell USB / Adaptor Charger Evaluation Module BQ24195LEVM-193 BQ24195LEVM-193 Datenbogen
Produktcode
BQ24195LEVM-193
SW
5V/div
IL
1A/div
400ns/div
0
SYS
3.4V offset
100mV/div
SW
5V/div
IL
1A/div
4us/div
STAT
2V/div
/CE
5V/div
SW
10V/div
IBAT
2A/div
4us/div
SYS
3.4V Offset
200mV/div
IIN
2A/div
ISYS
2A/div
2ms/div
VBUS
5V/div
REGN
5V/div
SYS
2V/div
IIN
200mA/div
100ms/div
STAT
2V/div
/CE
5V/div
SW
5V/div
IBAT
1A/div
400us/div
SLUSB97 – OCTOBER 2012
Power Up from USB100mA (VBAT 3.2V)
Charge Enable (VBUS 5V)
Figure 7.
Figure 8.
Input Current DPM Response without Battery
Charge Disable (VBUS 12V)
(VBUS 5V, IIN 3A, Charge Disable)
Figure 9.
Figure 10.
PWM Switching Waveform
PFM Switching Waveform
(VBUS 12V, VBAT 3.8V, ICHG 3A)
(VBUS 9V, No Battery, ISYS 10 mA, Charge Disable)
Figure 11.
Figure 12.
12
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