Diodes AP2401, AP2411 User Manual

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Green

Description

The AP2401 and AP2411 are single channel current-limited

integrated high-side power switches optimized for Universal Serial

Bus (USB) and other hot-swap applications. The family of devices

complies with USB standards and is available with both polarities of

enable input.

The devices have fast short-circuit response time for improved overall

system robustness, and have integrated output discharge function to

ensure completely controlled discharging of the output voltage

capacitor. They provide a complete protection solution for applications

subject to heavy capacitive loads and the prospect of short circuit,

and offer reverse current blocking, over-current, over-temperature

and short-circuit protection, as well as controlled rise time and

under-voltage lockout functionality. A 7ms deglitch capability on the

open-drain Flag output prevents false over-current reporting and does

not require any external components. AP2401 and AP2411 will be

latched off after 7ms deglitch.

All devices are available in SO-8, MSOP-8, MSOP-8EP,

U-DFN3030-8 and U-DFN2020-6 packages.

2.0A SINGLE CHANNEL CURRENT-LIMITED

Pin Assignments

GND

GND

IN

IN

EN

Note: Latter with exposed pad

AP2401/AP2411

POWER SWITCH WITH LATCH-OFF

(Top View)

1

IN

2

IN

3

4

EN FLG

SO-8

(Top View)

1

2

3

4

MSOP-8/MSOP-8EP

(dotted line)

(Top View)

8

7

6

5

NC

OUT

OUT

8

7

6

5

NC

OUT

OUT

FLG

1

Features

 Single Channel Current-Limited Power Switch

 Output Discharge Function

 Output Current Latch-Off when OCP Triggered

 Fast Short-Circuit Response Time: 2µs

 2.5A Accurate Current Limiting

 Reverse Current Blocking

 70m On-Resistance

 Input Voltage Range: 2.7V - 5.5V

 Built-In Soft-Start with 0.6ms Typical Rise Time

 Over-Current and Thermal Protection

 Fault Report (FLG) with Blanking Time (7ms typ)

 ESD Protection: 2kV HBM, 200V MM

 Active Low (AP2401) or Active High (AP2411) Enable

 Ambient Temperature Range: -40°C to +85°C

 SO-8, MSOP-8, MSOP-8EP, U-DFN3030-8 and U-DFN2020-6:

Available in “Green” Molding Compound (No Br, Sb)

 Lead-Free Finish; RoHS Compliant (Notes 1 & 2)

 Halogen and Antimony Free. “Green” Device (Note 3)

 UL Recognized, File Number E322375

 IEC60950-1 CB Scheme Certified

Notes: 1. EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. All applicable RoHS exemptions applied.

2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"
and Lead-free.

3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.

AP2401/AP2411

Document number: DS35113 Rev. 6 - 2

www.diodes.com

Applications

 LCD TVs & Monitors

 Set-Top-Boxes, Residential Gateways

 Laptops, Desktops, Servers, e-Readers

 Printers, Docking Stations, HUBs

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GND

IN
IN

EN

2

3

4

U-DFN3030-8

U-DFN2020-6

8

7

6

5

NC

OUT
OUT

FLG

March 2013

© Diodes Incorporated

Typical Applications Circuit

Enable Active High

Power Supply

2.7V to 5.5V

10k

ON

0.1uF

IN

FLG

EN

GND

OUT

0.1uF

AP2401/AP2411

Load

120uF

OFF

Available Options

Part

Number

AP2401 1 Active Low

AP2411 1 Active High

Channel

Enable Pin

(EN)

Recommended Maximum
Continuous Load Current

(A)

2 2.5

Typical Output Latch-Off

Current Limit

(A)

Pin Descriptions

Pin Name

GND 1 1 2 Ground

IN

EN 4 4 3 Enable Input. Active low (AP2401) or active high (AP2411).

FLG 5 5

OUT

NC

Exposed Pad — Exposed Pad Exposed Pad

SO-8,

MSOP-8

2, 3 2, 3

6, 7 6, 7 5 Voltage Output Pin (all OUT pins must be tied together externally)

8 8 6 No Internal Connection. Recommend tie to OUT pins.

AP2401/AP2411

Document number: DS35113 Rev. 6 - 2

Pin Number

MSOP-8EP,

U-DFN3030-8

U-DFN2020-6

1 Voltage Input Pin. Connect a 0.1µF or larger ceramic capacitor from IN to GND as close

as possible. (all IN pins must be tied together externally)

4 Over-temperature and over-current fault reporting with 7ms deglitch; active low open-drain

output. FLG is disabled for 7ms after turn-on.

Exposed pad. It should be externally connected to GND plane and thermal mass for
enhanced thermal impedance. Exposed pad should not be used as electrical ground
conduction path.

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Function

Package

SO-8

MSOP-8

MSOP-8EP
U-DFN3030-8
U-DFN2020-6

© Diodes Incorporated

March 2013

Functional Block Diagram

AP2401/AP2411

IN

UVLO

Current

Sense

Discharge

OUT

Control

EN

Driver

Thermal

Current

Limit

FLG

Deglitch

Sense

GND

Absolute Maximum Ratings (@T

= +25°C, unless otherwise specified.)

A

Symbol Parameter Ratings Unit

ESD HBM Human Body Model ESD Protection 4 kV

ESD MM Machine Model ESD Protection 300 V

VIN Input Voltage (Note 4) -0.3 to 6.5 V

V

Output Voltage (Note 4) -0.3 to VIN +0.3 or 6.5 V

OUT

V

Enable Voltage (Note 4) -0.3 to VIN +0.3 or 6.5 V

EN , VFLG

I

Maximum Continuous Load Current Internal Limited A

LOAD

T

Maximum Junction Temperature 150 °C

J(MAX)

TST Storage Temperature Range (Note 4) -65 to +150 °C

Notes: 4. All voltages referred to GND pin. Maximums are the lower of VIN + 0.3 and 6.5V

5. UL Recognized Rating from -30°C to +70°C (Diodes qualified T

Caution: Stresses greater than the 'Absolute Maximum Ratings' specified above, may cause permanent damage to the device. These are stress ratings
only; functional operation of the device at these or any other conditions exceeding those indicated in this specification is not implied. Device reliability may
be affected by exposure to absolute maximum rating conditions for extended periods of time.

Semiconductor devices are ESD sensitive and may be damaged by exposure to ESD events. Suitable ESD precautions should be taken when handling
and transporting these devices

from -65°C to +150°C).

ST

Recommended Operating Conditions (@T

= +25°C, unless otherwise specified.)

A

Symbol Parameter Min Max Unit

V

I

OUT

V

V

T

IN

IL

IH

Input voltage 2.7 5.5 V

Output Current 0 2 A

EN Input Logic Low Voltage 0 0.8 V

EN Input Logic High Voltage 2 VIN V

Operating Ambient Temperature -40 +85 °C

A

AP2401/AP2411

Document number: DS35113 Rev. 6 - 2

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March 2013

© Diodes Incorporated

AP2401/AP2411

Electrical Characteristics (@T

Symbol Parameter Test Conditions (Note 5) Min Typ Max Unit

V

Input UVLO VIN rising 1.6 2.0 2.4 V

UVLO

V

Input UVLO Hysteresis VIN decreasing 50 mV

UVLO

I

I

R

I

I

SHORT

T

I

LEAK-EN

I

LEAK-O

T

T

R

T

T

T

Notes: 6. Pulse-testing techniques maintain junction temperature close to ambient temperature; thermal effects must be taken into account separately.

7. The discharge function is active when the device is disabled (when enable is de-asserted or during power-up power-down when V
The discharge function offers a resistive discharge path for the external storage capacitor for limited time.

8. Device mounted on 2” x 2” FR-4 substrate PCB, 2oz copper, with minimum recommended pad layout.

9. Device mounted on 2” x 2” FR-4 substrate PCB, 2oz copper, with minimum recommended pad on top layer and thermal vias to bottom layer ground
plane.

10. Device mounted on 1"x1" FR-4 substrate PCB, 2oz copper, with minimum recommended padon top layer and thermal vias to bottom layer ground.

Input Shutdown Current Disabled, OUT = open 0.1 1 µA

SHDN

I

Input Quiescent Current Enabled, OUT = open 60 100 µA

Q

Input Leakage Current Disabled, OUT grounded 0.1 1 µA

LEAK

I

Reverse Leakage Current Disabled, V

REV

Switch on-resistance

DS(ON)

Over-Load Current Limit

LIMIT

(Note 6)

I

Current limiting trigger threshold Output Current Slew rate (< 100A/s) 2.5 A

Trig

Short-Circuit Current Limit Enabled into short circuit 2.1 2.75 3.3 A

Short-circuit Response Time V

SHORT

V

EN Input Logic Low Voltage VIN = 2.7V to 5.5V 0.8 V

IL

V

EN Input Logic High Voltage VIN = 2.7V to 5.5V 2 V

IH

EN Input leakage VIN = 5V, V

Output leakage current Disabled, V

Output turn-on delay time CL = 1µF, R

D(ON)

TR Output turn-on rise time CL = 1µF, R

Output turn-off delay time CL = 1µF, R

D(OFF)

TF Output turn-off fall time CL = 1µF, R

FLG output FET on-resistance I

FLG

I

FLG Off Current V

FOH

FLG blanking and latch off time

BLANK

T

Discharge time CL= 1µF, VIN = 5V, disabled to V

DIS

R

Discharge resistance (Note 7) VIN = 5V, disabled, I

DIS

Thermal Shutdown Threshold Enabled 140 °C

SHDN

Thermal Shutdown Hysteresis 20 °C

HYS

Thermal Resistance Junction-to-



JA

Ambient

= +25°C, VIN = +5.0V, C

A

= 0V, V

IN

= 5V, I

V

IN

VIN = 3.3V, I

VIN= 5V, V

= 0V to I

OUT

= 10mA 20 40 

FLG

= 5V 0.01 1 µA

FLG

= 2.0A

OUT

= 2.0A

OUT

= 4.5V -40°C  T

OUT

OUT

= 0V and 5.5V 0.01 1 µA

EN

= 0V 0.5 1 µA

OUT

= 5 0.1 ms

LOAD

= 5 0.6 1.5 ms

LOAD

= 5 0.1 ms

LOAD

= 5 0.05 0.1 ms

LOAD

Assertion or deassertion due to overcurrent and over­temperature condition

= 0.1µF, CL= 1µF, unless otherwise specified.)

IN

OUT

= 5V, I

at VIN 0.01 1 µA

REV

T

= +25°C 70 84

A

-40°C  TA  +85°C 105

T

= +25°C 90 108

A

-40°C  TA  +85°C 135

+85°C 2.05 2.5 2.85 A

A

= I

(OUT shorted to ground) 2 µs

LIMIT

4 7 15 ms

< 0.5V 0.6 ms

OUT

= 1mA 100 

OUT

SO-8 (Note 8) 96 °C/W

MSOP-8 (Note 8) 130 °C/W

MSOP-8EP (Note 9) 92 °C/W

U-DFN3030-8 (Note 9) 84 °C/W

U-DFN2020-6 (Note 10) 90 °C/W

< V

IN

UVLO

m

.

AP2401/AP2411

Document number: DS35113 Rev. 6 - 2

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March 2013

© Diodes Incorporated

Typical Performance Characteristics

AP2401/AP2411

V

EN

V

OUT

50%

T

D(ON)

T

10%

50%

T

R

90%

D(OFF)

90%

10%

T

F

V

EN

V

OUT

50%

T

D(ON)

T

10%

R

90%

50%

T

D(OFF)

90%

10%

T

F

Vout
2V/div

Ven
5V/div

Figure 1 Voltage Waveforms: AP2401 (left), AP2411 (right)

All Enable Plots are for Enable Active Low

Turn-On Delay and Rise Time

T

=25°C

A

V

=5V

IN

CL=1µF

=2.5

R

OUT

Device Enable

Turn-Off Delay and Fall Time

Vout
2V/div

Ven
5V/div

Device Disable

T

=25°C

A

V

=5V

IN

CL=1µF

=2.5

R

OUT

Iin
1A/div

Iin
1A/div

Turn-Off Delay and Fall Time

Vout
2V/div

Ven
5V/div

Device Disable

Iin
1A/div

=25°C

T

A

=5V

V

IN

CL=120µF
R

=2.5

OUT

Vout
2V/div

Ven
5V/div

Iin
1A/div

Turn-On Delay and Rise Time

T

=25°C

A

=5V

V

IN

CL=120µF
R

=2.5

OUT

Device Enable

Inrush Current Limit

AP2401/AP2411

Document number: DS35113 Rev. 6 - 2

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March 2013

© Diodes Incorporated

Typical Performance Characteristics (cont.)

Device Enabled Into Short-Circuit

=25°C

T

A

V

=5V

Ven
5V/div

IN

CL=120µF
R

=1

OUT

Ven
5V/div

Inrush Current

=25°C

T

A

V

IN

CL=120µF,220uF, 470µF
R

OUT

CL=470µF

CL=220µF

AP2401/AP2411

=5V

=5

Iout
1A/div

Full-Load to Short-Circuit

Transient Response

Vout

Output Short Circuit

2V/div

Iin
2A/div

Device Turns off and Re-enables

FLG

Into Current-Limit

5V/div

AP2401/AP2411

Document number: DS35113 Rev. 6 - 2

T

=25°C

A

V

=5V

IN

R

=2.5

OUT

Device is latched-off

Iout

0.5A/div

Vout
2V/div

Iin
2A/div

FLG
5V/div

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CL=120µF

No-Load to Short-Circuit

Transient Response

Output Short Circuit

T

A

V

IN

Device Turns off and Re-enables
Into Current-Limit

Device is latched-off

=25°C

=5V

© Diodes Incorporated

March 2013