AIC1527

Quad USB High-Side Power Switch

Analog Integrations Corporation 4F, 9, Industry E. 9th Rd, Science Based Industrial Park, Hsinchu Taiwan, ROC

www.analog.com.tw

DS-1527-00

May 31, 00

TEL: 886-3-5772500

FAX: 886-3-5772510

1

• 110mΩ (5V Input) High-Side MOSFET Switch.

l

500mA Continuous Load Current per Channel.

l

220

µA Typical On-State Supply Current.

l

1

µA Typical Off-State Supply Current.

l

Current-Limit / Short Circuit Protection.

l

Thermal Shutdown Protection under Overcurrent

Condition.

l

Undervoltage Lockout Ensures that Switch is off at

Start Up.

l

Output can be Forced Higher than Input (Off-State).

l

Open-Drain Fault Flag.

l

Slow Turn ON and Fast Turn OFF.

l

Enable Active-High or Active-Low.

• USB Power Management.

l

Hot Plug-In Power Supplies.

l

Battery-Charger Circuit.

The AIC1527 is a quad high-side power switch for

self-powered and bus-powered Universal Serial

Bus (USB) applications. One high-side switch is a

MOSFET with 110m

voltage

drop

requirements

for

maximum

transmission wire length.

Multi-purpose

open-drain

fault

flag

output

indicates over-current limiting, thermal shutdown,

or undervoltage lockout for each channel. Output

current is typically limited to 1A, well below the 5A

safety requirement, and the thermal shutdown

function

independently controls each channel

under overcurrent condition.

Guaranteed minimum output rise time limits

inrush current during hot plug-in, minimizing EMI

and preventing the voltage at upstream port from

dropping excessively.

4.50V to 5.25V

Upstream VBUS

100mA max

DATA

33µ F

5.0V

VCC

A

OUT

IN

GND

+

1µF

C

IN

10µF

C

OUT

+

*

33µF, 16V Tantalum, or

100µF, 10V Electrolytic

Bold line indicate high- current traces

10K

10K

10K

10K

A

GND

ON/OFF

OVERCURRENT

OVERCURRENT

ON/OFF

OVERCURRENT

OVERCURRENT

ON/OFF

U

VIN

0.1µF

Bead

Ferrite

+

DATA

D+

D-

GND

VBUS

33µF

*

+

DATA

D+

D-

GND

VBUS

33µ F

*

+

DATA

D+

D-

GND

VBUS

µF

33µF

*

+

DATA

D+

D-

GND

VBUS

33µF

*

OUTA

IN(A/B)

CTLB

FLGB

FLGA

CTLA

OUTA

GND1

IN(A/B)

OUTB

CTLB

FLGB

FLGA

CTLA

D+

D-

GND

VBUS

0.1µF

+

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