MAX14550E Maxim, MAX14550E Datasheet - Page 15

• Manufacturer Part Number: MAX14550E
• Description: The MAX14550E is a USB Hi-Speed analog switch with a USB host charger (dedicated charger) identification circuit
• Manufacturer: Maxim

USB Host Charger Identification Analog Switch
NOTE: THIS TIMING IS TO AVOID THE VOLTAGE FROM THE RESISTOR-DIVIDER FROM APPEARING ON DP/DM WHILE V
GROUNDED BY 15kΩ.
CHARGING CURRENT
iPod ATTACH IN S3
USB CONNECTION
HOST
V
BUS
SW
5V
HOST
V
BUS
SW
S3
t
FALL TO 4.0V
AT
t
AT TO PT
PT
S0
4.0V
≤ 500mA
ATTACH
5V
0.8V
PT
S0
S3 TO S0 TRANSITION
S3
AT
≤ 1000mA
t
AT TO PT
< t
<3s
FALL TO 4.0V
>0.5s
PT
S0
≤ 500mA
BUS
Timing Charts (continued)
IS OFF BY SWITCHING DP/DM TO TDP/TDM, WHICH IS
S3
AT
0.8V
4.0V
≤ 1000mA
5V
15