Diodes AP2181D, AP2191D User Manual

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Green

1.5A SINGLE CHANNEL CURRENT-LIMITED

POWER SWITCH WITH OUTPUT DISCHARGE

Description

The AP2181D and AP2191D 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 SO-8, MSOP-8, MSOP-8EP, SOT25, and U-DFN2018-6 packages.

Features

 Single USB Port Power Switches with Output Discharge  Over-Current and Thermal Protection  2.1A 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 (AP2191D) or Active Low (AP2181D) Enable  Ambient Temperature Range -40°C to +85°C  SOT25, SO-8, MSOP-8, MSOP-8EP (Exposed Pad), and

U-DFN2018-6: 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

Applications

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

Station, HUB

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.

AP2181D/AP2191D

Document number: DS32251 Rev. 3 - 2

Pin Assignments

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( Top View )

1

GND

2

IN

3

IN

4

EN

( Top View )

1

GND

2

IN

3

IN

4

EN

MSOP-8 / MSOP-8EP

Note: Latter with Exposed Pad

Dotted Line

( Top View )

OUT

GND

FLG

1

2

3

( Top View )

1

GND

2

IN

3

U-DFN2018-6

AP2181D/AP2191D

8

NC

7

OUT

6

OUT

5

FLG

SO-8

NC

8 7

OUT

6

OUT

5

FLG

5

IN

4

EN

SOT25

6

OUT

5

OUT

4

FLGEN

March 2013

Typical Applications Circuit

AP2191D Enable Active High

Power Supply

2.7V to 5.5V

10k

10uF

0.1uF

IN

FLG

OUT

0.1uF

AP2181D/AP2191D

Load

120uF

ON

EN

GND

OFF

Available Options

Part Number Channel

AP2181D 1 Active Low 2.1A 1.5A AP2191D 1 Active High 2.1A 1.5A

Enable Pin

(EN)

Current Limit

(Typical)

Pin Descriptions

Name

GND 1 1 2 1 Ground

IN

EN 4 4 4 3 Enable input, active low (AP2181D) or active high ( AP2191D)

FLG 5 5 3 4

OUT

NC

Exposed tab — Exposed tab — Exposed tab

SO-8

MSOP-8

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

AP2181D/AP2191D

Document number: DS32251 Rev. 3 - 2

Pin Number

MSOP-8EP SOT25 U-DFN2018-6

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Functions

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

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

impedance. It shou l d n o t be u s e d as e l e c t rica l g r o u nd co n d ucti o n p a t h.

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Recommended Maximum Continuous Load Current

March 2013

AP2181D/AP2191D

Functional Block Diagram

IN

EN

UVLO

Driver

Thermal

Sense

Current

Sense

Discharge

Control

Current

Limit

Deglitch

OUT

FLG

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

I

LOAD

T

JMAX

TST

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

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. 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

Input Voltage 6.5 V Output Voltage

VIN +0.3 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

VIL VIH

T

IN

A

Input Voltage 2.7 5.5 V Output Current 0 1.5 A EN Input Logic Low Voltage 0 0.8 V EN Input Logic High Voltage 2

VIN

Operating Ambient Temperature -40 +85 °C

V

AP2181D/AP2191D

Document number: DS32251 Rev. 3 - 2

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March 2013

AP2181D/AP2191D

Electrical Characteristics (@T

= +25°C, VIN = +5.0V, unless otherwise specified.)

A

Symbol Parameter Test Conditions Min Typ Max Unit

V

I

SHDN

I

LEAK

I

R

DS(ON)

I

SHORT

I

LIMIT

I

SINK

T

D(ON)

T

D(OFF)

R

T

R

T

SHDN

T

Input UVLO 1.6 1.9 2.5 V

UVLO

Input Shutdown Current Input Quiescent Current

I

Q

Disabled, I Enabled, I

OUT

= 0

0.5 1 µA

45 70 µA Input Leakage Current Disabled, OUT grounded 0.1 1 µA Reverse Leakage Current

REV

Disabled, V

= 0V, V

IN

OUT

= 5V, I

REV

at VIN

SOT25, MSOP-8, SO-8, MSOP-8-EP

U-DFN2018-6 90 110

Switch on-resistance

V I

OUT

IN

= 5V,

= 1.5A

T

= +25°C

A

-40°C  TA  +85°C

VIN = 3.3V,

= 1.5A

I

Short-Circuit Current Limit Over-Load Current Limit Current Limiting Trigger Threshold

Trig

EN Input Logic Low Voltage

V

IL

EN Input Logic High Voltage

V

IH

EN Input leakage 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

Blank

Discharge Time

DIS

Discharge Resistance (Note 5)

DIS

Thermal Shutdown Threshold Thermal Shutdown Hysteresis 25

HYS

OUT

Enabled into short circuit, CL=120µF V

= 5V, V

IN

Output Current Slew rate (<100A/s) , CL = 120µF

= 2.7V to 5.5V

V

IN

V

= 2.7V to 5.5V

IN

= 5V

V

EN

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

=10mA

FLG

C

= 10uF, CL = 22F

IN

CL = µF, VIN = 5V, disabled to V VIN = 5V, disabled, I Enabled, R

T

= +25°C

A

OUT

 +85°C

A

= 1mA

OUT

< 0.5V

-40°C  T

= 4V, CL = 120µF, -40°C  TA  +85°C

OUT

= 10

LOAD

= 10

LOAD

= 10

LOAD

= 10

LOAD

= 1k

LOAD

0.1 1 µA

95 115

140

120 140

170

2.0 A

1.6 2.1 2.6 A

2.6 A

0.8 V

2 V

1 µA

0.05 ms

0.6 1.5 ms

0.05 ms

0.05 0.1 ms

20 40 

4 7 15 ms

0.6 ms 100  140

m

C C

SOT25 (Note 6) 170



Thermal Resistance Junction-to-

JA

Ambient

SO-8 (Note 6) 127 MSOP-8 (Note 6) 118 MSOP-8-EP (Note 7) 67

o

C/W

U-DFN2018-6 (Note 7) 70

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.

AP2181D/AP2191D

Document number: DS32251 Rev. 3 - 2

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March 2013

Typical Performance Characteristics

AP2181D/AP2191D

Ven 5V/div

Vout 2V/div

Ven 5V/div

V

EN

V

OUT

50%

T

D(ON)

T

10%

50%

T

R

90%

D(OFF)

90%

10%

T

F

V

EN

50%

T

D(ON)

V

OUT

10%

50%

T

R

90%

D(OFF)

90%

10%

T

F

Figure 1 Voltage Waveforms: AP2181D (left), AP2191D (right)

All Enable Plots are for AP2181D Active Low

Turn-On Delay and Rise Time

CL = 1µF TA = +25°C RL = 10

Ven 5V/div

Vout 2V/div

Turn-Off Delay and Fall Time

CL = 1µF TA = +25°C RL = 10

100µs/div

Turn-On Delay and Rise Time

Ven 5V/div

100µs/div

Turn-Off Delay and Fall Time

Vout 2V/div

AP2181D/AP2191D

Document number: DS32251 Rev. 3 - 2

500µs/div

CL = 120µF TA = +25°C RL = 10

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Vout 2V/div

500µs/div

CL = 120µF TA = 25°C RL = 10

March 2013

Typical Performance Characteristics (cont.)

Iout 500mA/div

Short Circuit Current, Device Enabled Into Short

Ven 5V/div

V

= 5V

IN

TA = +25°C CL = 120µF

AP2181D/AP2191D

Short Circuit with Blanking Time and Recovery

Vout 5V/div

Vflag 5V/div

Iout 2A/div

V

= 5V

IN

TA = +25°C CL = 120µF

Vflag 2V/div

Iout 1A/div

Vin 2V/div

500us/div

0.6 Ω Load Connected to Enabled Device

2ms/div

UVLO Increasing With Full Load

V

= 5V

IN

TA = +25°C CL = 120µF

Vin 5V/div

Iout 500mA/div

Vflg 5V/div

Vout 5V/div

Vin 2V/div

50ms/div

Power On with Full Load

1ms/div

UVLO Decreasing With Full Load

TA = +25°C CL = 120µF RL = 3.3

TA = +25°C CL = 22µF RL = 3.3

Iout 500mA/div

AP2181D/AP2191D

Document number: DS32251 Rev. 3 - 2

1ms/div

TA = +25°C CL = 22µF RL = 3.3

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Iout 500mA/div

10ms/div

March 2013