LTM2884

21

Rev. D

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TYPICAL APPLICATIONS

Figure 11. Bus or Self Powered USB Isolation with Low Current Suspend and Power Plug Detection

2884 F11

VLO

ON

SPNDPWR

VCC2

VBUS

GND

VCC

LTM2884

D1+

D1–

D+

UPSTREAM

USB PORT

D–

VLO2

D2+

D2–

GND2

GND

PWR

PERIPHERAL

200mA FOR VCC 4.4V TO 5.5V

500mA FOR VCC 8.6V TO 16.5V

VIN

GND

CTL

SENSE

GATE

STAT

LTC4412

VIN

SHDN

UV

OV

4.75k

4.99k

150k

GATE

VOUT

FAULT

GND

LTC4365

OVERVOLTAGE = 16.7V

UNDERVOLTAGE = 8.1V

9V TO 16V (500mA)

Si4230DY-TI-GE3

SiA921EDJ

VPLUG

VBUS

Figure 12. Isolated 1W or 2.5W Power Supply

2884 F12

VLO

ON

SPNDPWR

VCC2

VBUS

VPLUG

GND

VCC

LTM2884

D1+

D1–

VLO2

D2+

D2–

GND2

GND

PWR

200mA FOR VCC 4.4V TO 5.5V

500mA FOR VCC 8.6V TO 16.5V

4.4V TO 16.5V (500mA)

OFF

ON

5V