Diodes AP2141D, AP2151D User Manual

Description

The AP2141D and AP2151D are integrated high-side power switches
optimized for Universal Serial Bus (USB) and other hot-swap
applications. The family of devices complies with USB 2.0 and is
available with both polarities of Enable input. They offer current and
thermal limiting 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.

All devices are available in SOT25, SO-8, MSOP-8EP, and
U-DFN2018-6 packages.

Features

 Single USB Port Power Switches with Output Discharge
 Over-Current and Thermal Protection
 0.8A accurate Current Limiting
 Fast Transient Response
 Reverse Current Blocking
 90m On-Resistance
 Input Voltage Range: 2.7V - 5.5V
 0.6ms Typical Rise Time
 Very Low Shutdown Current: 1µA (max)
 Fault Report (FLG) with Blanking Time (7ms typ)
 ESD Protection: 4kV HBM, 300V MM
 Active High (AP2151D) or Active Low (AP2141D) enable
 Ambient Temperature Range -40°C to +85°C
 SOT25, SO-8, MSOP-8EP (Exposed Pad), and U-DFN2018-6:

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

 Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
 Halogen and Antimony Free. “Green” Device (Note 3)

 UL Recognized, File Number E322375
 IEC60950-1 CB Scheme Certified

Applications

0.5 SINGLE CHANNEL CURRENT-LIMITED

POWER SWITCH WITH OUTPUT DISCHARGE

Pin Assignments

GND

IN

IN

EN

OUT

GND

FLG

( Top View )

1

2

3

4

( Top View )

1

2

3

AP2141D/ AP2151D

8

NC

7

OUT

6

OUT

5

FLG

SO-8

5

IN

4

EN

SOT25

 Consumer Electronics – LCD TV & Monitor, Game Machines
 Communications – Set-Top-Box, GPS, Smartphone
 Computing – Laptop, Desktop, Servers, Printers, Docking Station,

HUB

Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.

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.

AP2141D/ AP2151D

Document number: DS32242 Rev. 4 - 2

www.diodes.com

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May 2013

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Typical Applications Circuit

AP2151D Enable Active High

AP2141D/ AP2151D

Power Supply

IN

OUT

2.7V to 5.5V

10k

10uF

0.1uF

0.1uF
120uF

FLG

ON

EN

GND

OFF

Part Number Channel Enable Pin (EN)

AP2141D 1 Active Low 0.8A 0.5A
AP2151D 1 Active High 0.8A 0.5A

Current Limit

(Typical)

Pin Descriptions

Pin

Name

GND 1 1 2 1 Ground

IN

EN 4 4 4 3 Enable Input, active low (AP2141D) or active high (A P2151D).

FLG 5 5 3 4

OUT

NC

Exposed tab - Exposed tab - Exposed tab

SO-8 MSOP-8EP SOT25 U-DFN2018-6

2, 3 2, 3 5 2 Voltage Input Pin. (all IN pins must be tied together externally )

6, 7 6, 7 1 5, 6 Voltage Output Pin (all OUT pins must be tied together externally ).

8 8 N/A N/A No Internal Connection; recommend tie to OUT pins.

AP2141D/ AP2151D

Document number: DS32242 Rev. 4 - 2

Pin Number

Descriptions

Over-current and over-temperature fault report; open-drain flag is active low w hen
triggered.

Exposed pad. Internally connected to GND.
It should be externally connected to GND and thermal mass for enhanced

thermal impedance.
It should not be used as electrical ground conduction path.

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Load

Recommended Maximum
Continuous Load Current

May 2013

© Diodes Incorporated

Functional Block Diagram

AP2141D/ AP2151D

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

V

OUT

V

EN , VFLG

T

I

LOAD
J(MAX)

TST

Caution: Stresses greater than the 'Absolute Maximum Ratings' specified above, may cause permanent damage to the device. These are stress ratings only;

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

Note: 4. UL Recognized Rating from -30°C to +70°C (Diodes qualified T

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.

Input Voltage 6.5 V
Output Voltage

VIN +0.3

V
Enable Voltage 6.5 V
Maximum Continuous Load Current Internal Limited A
Maximum Junction Temperature 150 °C
Storage Temperature Range (Note 4) -65 to +150 °C

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

T

VIH
VIL

IN

A

Input voltage 2.7 5.5 V
Output Current 0 500 mA
Operating Ambient Temperature -40 +85

High-Level Input Voltage on EN or
Low-Level Input Voltage on EN or

EN

EN

2.0
0 0.8 V

V

IN

C

V

AP2141D/ AP2151D

Document number: DS32242 Rev. 4 - 2

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© Diodes Incorporated

AP2141D/ AP2151D

Electrical Characteristics (@T

Symbol Parameter Test Conditions Min Typ Max Unit

V

I

SHDN

I

I

R

DS(ON)

I

SHORT

I
I

I

t

D(ON)

t

D(OFF)

R

t

BLANK

R

T

T

Notes: 5. The discharge function is active when the device is disabled (when enable is de-asserted). The discharge function offers a resistive discharge path
for the external storage capacitor.

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

7. 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.

Input UVLO 1.6 1.9 2.5 V

UVLO

Input Shutdown Current
Input Quiescent Current

I

Q

Input Leakage Current Disabled, OUT grounded 0.1 1 µA

LEAK

Reverse Leakage Current

REV

Switch On-Resistance

Short-Circuit Current Limit
Over-Load Current Limit

LIMIT

Current limiting trigger threshold

TRIG

EN Input leakage

SINK

Output turn-on delay time
Output turn-on rise time

tR

Output turn-off delay time
Output turn-off fall time

tF

FLG output FET on-resistance

FLG

FLG blanking time
Discharge resistance (Note 5)

DIS

Discharge Time

t

DIS

Thermal Shutdown Threshold

SHDN

Thermal Shutdown Hysteresis 25

HYS

Thermal Resistance Junction-to-



JA

Ambient

= +25°C, VIN = +5V, unless otherwise specified.)

A

Disabled, I
Enabled, I

Disabled, VIN = 0V, V

OUT

OUT

= 0

= 0

OUT

= 5V, I

REV

at VIN

SOT25, MSOP-8,

V
I

OUT

IN

= 5V,

= 0.5A

T

A

= +25°C

MSOP-8EP, SO-8
U-DFN2018-6

-40°C  TA  +85°C
= +25C

VIN = 3.3V, I

0.5A

T

=

OUT

A

-40°C  TA  +85°C

Enabled into short circuit, CL = 22µF
VIN = 5V, V

= 4.0V, CL = 120µF, -40°C  TA  +85°C

OUT

Output Current Slew Rate (<100A/s) , CL = 22µF
V

= 5V

EN

CL = 1µF, R
CL = 1µF, R
CL = 1µF, R
CL = 1µF, R

=10mA

I

FLG

LOAD
LOAD
LOAD
LOAD

= 10
= 10
= 10

= 10

CIN = 10µF, CL = 22µF
VIN = 5V, disabled, I
CL = 1µF, VIN = 5V, disabled to V
Enabled, R

LOAD

OUT

= 1k

= 1mA

OUT

< 0.5V

0.5 1 µA
45 70 µA

0.1 1 µA
95 115
90 110

140
120 140
170

0.6 A

0.6 0.8 1.0 A

1.0 A
1 µA

0.05 ms

0.6 1.5 ms

0.05 ms

0.05 0.1 ms
20 40 

4 7 15 ms

100 

0.6 ms
140

SOT25 (Note 6) 170
SO-8 (Note 6) 127
MSOP-8EP (Note 7) 67
U-DFN2018-6 (Note 7) 70

m

C
C

°C/W

AP2141D/ AP2151D

Document number: DS32242 Rev. 4 - 2

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Typical Performance Characteristics

AP2141D/ AP2151D

VEN
5V/div

V

OUT

2V/div

Figure 1 Voltage Waveforms: AP2141D (left), AP2151D (right)

All Enable Plots are for AP2151D Active High

Turn-On Delay and Rise Time

= 1uF

C

L

= +25°C

T

A

R

L

= 10

100µs/div

Turn-On Delay and Rise Time

V

EN

5V/div

V

OUT

2V/div

Turn-Off Delay and Fall Time

100µs/div

= 1uF

C

L

T

= +25°C

A

= 10

R

L

Turn-Off Delay and Fall Time

V

EN

5V/div

V

OUT

2V/div

AP2141D/ AP2151D

Document number: DS32242 Rev. 4 - 2

500µs/div

= 120µF

C

L

T

= +25°C

A

= 10

R

L

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V

EN

5V/div

V

OUT

2V/div

= 120µF

C

L

T

= +25°C

A

= 10

R

L

500µs/div

May 2013

© Diodes Incorporated

Typical Performance Characteristics (cont.)

Short Circuit Current, Device Enabled Into Short

VEN
5V/div

= 5V

V

I

OUT

200mA/div

IN

T

= +25°C

A

= 22µF

C

L

AP2141D/ AP2151D

Short Circuit with Blanking Time and Recovery

V

OUT

5V/div

V

FLAG

5V/div

I

OUT

1A/div

V

= 5V

IN

= +25°C

T

A

C

= 22µF

L

V

FLAG

2V/div

I

OUT

500mA/div

VFLAG
5V/div

100µs/div

3Ω Load Connected to Enabled Device

V
T
C

1ms/div

Power On Power Off

= 5V

IN

= +25°C

A

= 22µF

L

V

FLAG

2V/div

I

OUT

500mA/div

20ms/div

2Ω Load Connected to Enabled Device

V
T
C

1ms/div

= +25°C

T

A

= 120µF

C

L

R

= 10

L

= 5V

IN

= +25°C

A

= 22µF

L

VFLAG
5V/div

I

OUT

200mA/div

V

EN

5V/div

V

OUT

5V/div

AP2141D/ AP2151D

Document number: DS32242 Rev. 4 - 2

= +25°C

T

A

C

= 120µF

L

= 10

R

L

2ms/div 2ms/div

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I

OUT

200mA/div

V

EN

5V/div
V

OUT

5V/div

May 2013

© Diodes Incorporated