diodes incorporated AP1212 Service Manual

AP1212

Features

• Compliant to USB specifications

• Dual independent switches control

• 2.7V to 5.5V input voltage

• 500mA minimum continuous current per port

• 110mΩ typical on-resistance

• 1.25A maximum short circuit current limit

• Independent open-drain fault flag pins

• 110μA typical on-state supply current

• 1μA typical off-state supply current

• Output can be forced higher than input (off-state)

• Thermal shutdown

• 2.4V typical under voltage lockout (UVLO)

• 1ms turn-on (soft-start) and fast turn-off

• Enable active-high (H) or active-low (L)

• SOP-8L: Available in “Green” Molding Compound

(No Br, Sb)

• Lead Free Finish/RoHS Compliant (Note 1)

Applications

• USB hubs

• Hot plug-in power supplies

• Battery-charger circuits

DUAL USB HIGH-SIDE POWER SWITCH

General Description

The AP1212 series are dual integrated high-side power switch
with independent enable and flag functions, optimized for
self-powered and bus-powered Universal Serial Bus (USB)
applications. The AP1212 series support the following USB
requirements: each switch channel supplies up to 500mA as
required by USB downstream devices; the switch’s low
on-resistance meets USB voltage drop requirements; fault
current is limited to typically 1000mA, well below the UL 25VA
safety requirements; and a flag output is available to indicate fault
conditions to the local USB controller. Soft start eliminates the
momentary voltage drop on the upstream port that may occur
when the switch is enabled in bus-powered applications.
Additional features include thermal shutdown to prevent
catastrophic switch failure from high-current loads, under voltage
lockout (UVLO) to ensure that the device remains off unless there
is a valid input voltage present, and 3.3V and 5V logic compatible
enable inputs.

Ordering Information

A P 1 2 1 2 X X X X

Enable
Active -High

:

H

Active -Low

:

L

Package

S:SOP-8L

Lead Free

L : Lead Free

G : Green

Note: 1. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7.

Device

(Note 3)

AP1212XS

Package

Code

Packaging

S SOP-8L 100 -U 2500/Tape & Reel -13

Quantity

Tube 13” Tape and Reel

Part Number

Suffix

Note: 2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be on found our website at
http://www.diodes.com/datasheets/ap02001.pdf.

Packing

U

:

-

Tube

-13:Taping

Quantity

Part Number

Suffix

AP1212 Rev. 2 1 of 12 FEBRUARY 2007

www.diodes.com © Diodes Incorporated

AP1212

Pin Assignments

EN1

FLG1

FLG2

EN2

1

2

3

4

(Top View)

AP1212

DUAL USB HIGH-SIDE POWER SWITCH

OUT1

8

IN

7

GND

6

5

OUT2

SOP-8L

Pin Descriptions

Name Description

EN1
EN2

FLG1
FLG2

GND Supply return.

IN

OUT1
OUT2

AP1212 Rev. 2 2 of 12 FEBRUARY 2007

Enable: Logic-compatible enable

input. ( H: active high, L: active low).
Do not float.

Fault Flag: Active-low, open-drain

output. Indicates over current,
UVLO, and thermal shutdown.

Supply Input: Output MOSFET drain.

Also supplies IC’s internal circuitry.
Connect to positive supply.

Switch Output: Output MOSFET

source. Typically connect to
switched side of load.

www.diodes.com © Diodes Incorporated

AP1212

Block Diagram

FLG1

EN1

EN2

FLG2

Charge

Pump

Thermal

Shutdown

Charge

Pump

DUAL USB HIGH-SIDE POWER SWITCH

OUT1

Driver

Current

Limit

UVLO

Current

Limit

Driver

CS

CS

Power N-MOSFET

IN

OUT2

Absolute Maximum Ratings (Note 3)

Symbol Parameter Rating Unit

VIN Supply Voltage +7 V

V

Fault Flag Voltage +7 V

FLG

I

Fault Flag Current 50 mA

FLG

V

Output Voltage +7 V

OUT

VEN Control Input Range –0.3 to V
TST Storage Temperature -65 to +150

ESD HBM Note 3 500 V

ESD MM Note 3 150 V

+2 V

IN

Power N-MOSFET

°C

AP1212 Rev. 2 3 of 12 FEBRUARY 2007

www.diodes.com © Diodes Incorporated

O

p

/

/

AP1212

DUAL USB HIGH-SIDE POWER SWITCH

Operating Ratings (Note 4)

Symbol Parameter Rating Unit

VIN Supply Voltage

T

O

P

Θ

Θ

JA
JC

Thermal Resistance SOP Junction to Ambient

Thermal Resistance SOP J unction to Case

erating Junction Temperature -40 to +125

Note: 3. Exceeding the absolute maximum rating may damage the device.

4. The device is not guaranteed to function outside its operating rating.

Electrical Characteristics (Under the conditions of V

=+5V and TA =25oC, unless otherwise specified)

IN

Symbol Parameter Conditions Min. Typ. Max. Unit

Switch off, OUT = open (Note 6)

ICC Supply Current

All switches on, OUT = open

(Note 6)
VIT Enable Input Threshold (Note 6) 0.8 1.7 2.40 V
IEN Enable Input Current VEN = 0V to 5.5V -1

CEN Enable Input Capacitance 1 pF

= 2.7V ~ 5.5V, I

V

R

Switch Resistance

DS(ON)

T

Output Turn-On Delay

OND

TR Output Turn-On Ri se Time

T

Output Turnoff Delay

OFFD

TF Output Turnoff Fall Time

I

Output Leakage Current Each output (output disabled) 10 µA

LEAK

I

Continuous Load Current Each output 0.6 A

OUT

IOS Short-circuit Current Limit

I

Current-Limit Threshold

LIM

TTS

RFO
I

FOH

Over-temperature
Shutdown Threshold

Error Flag Output
Resistance

Error Flag Off Current V

UVLO UVLO Threshold

IN

500mA, each switch

R

= 10Ω each output

L

R

= 10Ω each output

L

R

= 10Ω each output

L

R

= 10Ω each output

L

Each output (enable into load),

V

= 0V

OUT

Ramped load applied to

enabled output

TJ increasing 140

T

decreasing 130

J

V

= 5V, IL = 10mA 10 25

IN

V

= 3.3V, IL = 10mA 15 40

IN

= 5V 0.01 1 µA

FLAG

VIN = increasing 2.5 V

V

= decreasing 2.3 V

IN

OUT

=

Note: 5. Devices are ESD sensitive. Handling precautions are recommended. Human Body model, tested per JEDEC 22-A114.
Machine model, tested per JEDEC 22-A115.

6. Off is V

≦0.8V and on is VEN≧2.4V for the AP1212H. Off is VEN≧2.4V and on is VEN≦0.8V for the AP1212L.

EN

AP1212 Rev. 2 4 of 12 FEBRUARY 2007

www.diodes.com © Diodes Incorporated

+2.7 to +5.5 V

°C

165

26

0.50 5 µA
110 160 µA

±0.01

°C
°C

1 µA

110 140
30 µS

1 mS

0.5 10 µS

0.5 10 µS

0.8 1.0 1.25 A

1.0 1.2 1.4 A

W
W

mΩ

°C
°C

Ω
Ω