Analogic Technologies AAT4625IJS-T1, AAT4625IJS-B1, AAT4625IJS-1-T1, AAT4625IJS-1-B1, AAT4625IHS-T1 Datasheet

SmartSwitch

™

AAT4625

USB Single-Channel Power Switch

Preliminary Information

4625.2002.1.0.93 1

General Description

The AAT4625 SmartSwitch™ is part of
AnalogicTech's Application Specific Power
MOSFET™ (ASPM™) product family. It is a 1.0A
Current Limited P-channel, MOSFET power switch
designed for high-side load-switching applications.
This switch operates with inputs ranging from 2.7V
to 5.5V, making it ideal for both 3V and 5V systems.
An integrated current-limiting circuit protects the
input supply against large changes in load current
which may cause the supply to fall out of regulation.
The AAT4625 is also protected from thermal over­load which limits power dissipation and junction
temperatures. The current limit threshold is factory
programmed at 1.5A, with a maximum of 2.0A. The
quiescent supply current is typically a low 16µA. In
shutdown mode, the supply current decreases to
less than 1µA.

The AAT4625 is available in 8 pin SOP or TSSOP
and is specified over a -40 to 85°C temperature
range.

The AAT4600 Series is a family of adjustable and
fixed SmartSwitch™ products with a range of cur­rent handling capabilities. Single versions with
adjustable current limit (AAT4601) or fixed current
limit (AAT4625) as well as dual versions with fixed
current limit (AAT4626) are available.

Features

• Compliant with USB 1.1 and 2.0 specifications

• 2.7V to 5.5V Input voltage range

• 1.0A minimum continuous current

• 2.0A maximum current limit

• 60mΩ typical R

DS(ON)

• Low quiescent current

• Typically 16µA

• 1µA max with Switch off

• Thermal shutdown

• Fault flag with 10ms blanking

• Undervoltage Lockout

• Temp range -40 to 85°C

• UL Approved—File No. E217765

• 8 pin SOP or TSSOP package

Applications

• USB ports and peripherals

• Notebook computers

• Hot swap supplies

• General purpose power switching

UL Recognized Component

Typical Application

120µF

GNDGND

OUTPUT

OUT

OUT

IN

EN (EN)EN (EN)

0.1µF

V

CC

5.0V

100k

FLG

7

2

1

3

8

6

AAT4625

Pin Descriptions

Pin Configuration

SOP-8 TSSOP-8

(Top View) (Top View)

1 2

IN

OUT

OUT
NC

EN (EN)

FLG

GND

NC

1

2

3

4

8

7

6

5

1 2

EN (EN)

FLG

GND

NC

OUT
IN

OUT
NC

Pin # Symbol Function

1 EN (EN) Enable Input: Logic-compatible enable input. High input > 2.1V typical. Low

input < 1.9V typical. Active high or active low option available; see Ordering
Information for details.

2 FLG Fault Flag Output: Active-low, open-drain output. Indicates over current,

UVLO and thermal shutdown.

3 GND Ground connection

4,5 NC Not internally connected.

6,8 OUT Switch Output: These pins are the P-channel MOSFET drain connection.

7 IN Supply Input: This pin is the P-channel MOSFET source connection. Also

supplies the IC's internal circuitry.

AAT4625

USB Single-Channel Power Switch

2 4625.2002.1.0.93

Absolute Maximum Ratings (T

A

=25°C unless otherwise noted)

Note: Stresses above those listed in Absolute Maximum Ratings may cause permanent damage to the device. Functional operation at con­ditions other than the operating conditions specified is not implied. Only one Absolute Maximum rating should be applied at any one time.

Thermal Information

Note 1: Mounted on an FR4 printed circuit board.

Electrical Characteristics (V

IN

= 5V, TA= -40 to 85°C unless otherwise noted. Typical values

are at TA=25°C; bold values designate full temperature range)

Symbol Description Conditions Min Typ Max Units

V

IN

Operation Voltage 2.7 5.5 V

I

Q

Quiescent Current VIN=5V, EN=active 16 30 µA

I

Q(OFF)

Off Supply Current VIN=5.5V, EN (EN)=inactive 1 µA

V

EN-THRSH

Enable Input Threshold

Low-to-high transition 2.4 V
High-to-low transition 0.8 V

I

EN

Enable Input Current VEN= 0V to 5.5V 0.01 1 µA

C

EN

Enable Input Capacitance 1 pF

R

ds(ON)

On-Resistance

V

IN

=5V, TA = 25°C 60 100 mΩ

V

IN

=3.0V, TA = 25°C 70 115 mΩ

T

ON

Output Turn-On Delay V

IN

=5V, RL=10Ω 0.25 ms

T

ON-RISE

Output Turn-On Rise Time V

IN

=5V, RL=10Ω 0.2 ms

T

OFF

Output Turn-Off Delay V

IN

=5V, RL=10Ω 5 20 µs

T

OFF-FALL

Output Turn-Off Fall Time V

IN

=5V, RL=10Ω 20 µs

I

SD(OFF)

Output Leakage Current EN=inactive, VIN=5.5V, V

OUT

=0V 0.03 15 µA

I

LIMIT

Current Limit Threshold ramped load applied to enable 1.0 1.5 2.0 A

output, V

OUT

< 4.0V

OTMP Over Temperature Shut Down

T

J

increasing 125 °C

TJdecreasing 115 °C

R

FLG

Error Flag Output Resistance V

IN

=5V, IL = 1mA 30 Ω

I

SINK

Error Flag Off Current V

FLG

= 5.5V 0.05 1 µA

V

UVLO

Under voltage Lockout VIN= increasing, 1% hysteresis 2.0 2.3 2.7 V

T

BLANK

FAULT blanking 10 ms

Symbol Description Value Units

Θ

JA

Maximum Thermal Resistance (SOP-8)

1

100 °C/W

P

D

Maximum Power Dissipation (SOP-8)

1

1.25 W

Symbol Description Value Units

V

IN

IN to GND -0.3 to 6 V

V

FLG

FLG to GND -0.3 to 6 V

I

FLG

FLG Current 50 mA

V

OUT

OUT to GND -0.3 to VIN+0.3 V

I

OUT

Output Current (Internally Limited) 2.0 A

V

EN

EN to GND -0.3 to 6 V

T

S

Storage Temperature 150 °C

T

LEAD

Maximum Soldering Temperature (at Leads) 300 °C

AAT4625

USB Single-Channel Power Switch

4625.2002.1.0.93 3

Typical Characteristics

(Unless otherwise noted, VIN= 5V, TA= 25°C)

Turn-ON/OFF Response with 10

Ohm 1µFload

EN (5V/div)

FAULT

Vout (2V/

div)

Iin (200mA/div)

Off-Switch Current vs. Temperature

0.0000

0.0001

0.0010

0.0100

0.1000

1.0000

-40 -20 0 20 40 60 80 100 120

Off-Switch Current (µA)

Off-Supply Current vs. Temperature

0.0010

0.0100

0.1000

1.0000

-40 -20 0 20 40 60 80 100 12

0

Temperature(°C)

Off-Supply Current (µA)

Current Limit

0

0.2

0.4

0.6

0.8

1

1.2

1.4

1.6

1.8

012345

O

Output (A)

utput(V)

Quiescent Current

0

2

4

6

8

10

12

14

16

18

20

0123456

Input (V)

Input (µA)

Quiescent Current vs. Temperature

0

5

10

15

20

25

30

-40 -20 0 20 40 60 80 100 120

Temp

Q

u

i

escen

t

C

urren

t

(

µ

A)

erature (°C)

AAT4625

USB Single-Channel Power Switch

4 4625.2002.1.0.93

(Unless otherwise noted, VIN= 5V, TA= 25°C)

R

ds(ON)

vs. Temperature

40.0

45.0

50.0

55.0

60.0

65.0

70.0

75.0

80.0

-40 -20 0 20 40 60 80 100 120

Temperature (°C)

VCC=3V

VCC=5V

Short Circuit Through 0.6 Ohm

0

2

4

6

8

-101 2345

Ti

Input and Output (V)

Output (A)

me (µs)

-3

0

3

6

9

Input Voltage

Output Current

Output Voltage

Short Circuit Through 0.3 Ohm

0

2

4

6

8

-1012345

Tim

Input and Output (V)

Output (A)

e(µs)

-4

0

4

8

12

Input Voltage

Output Current

Output Voltage

Thermal Shutdown Response

50ms / div

EN (5V/div)

FAULT (5V/div)

Vout (1V/div)

Iin (500mA/div)

Start Into 1 Ohm load

1ms/div

EN (5V/div)

FAULT(5V/div)

Vout (1V/div)

Iin (500mA/div)

AAT4625

USB Single-Channel Power Switch

4625.2002.1.0.93 5

Functional Block Diagram

1.2V

Reference

Current

Limit

Over-Temp

Protection

Under­voltage

Lockout

IN

EN (EN)

GND

FLG

OUT

AAT4625

USB Single-Channel Power Switch

6 4625.2002.1.0.93

Ordering Information

Package Information

SOP-8

1 2

E

b

e

H

D

A1

A

A2

7(4x)

c

L

y

Q

Package Enable Marking

Part Number

Bulk Tape and Reel

SOP8 EN (Active-high) AAT4625IAS-1-B1 AAT4625IAS-1-T1

SOP8 EN (Active-low) AAT4625IAS-B1 AAT4625IAS-T1

TSSOP8 EN (Active-high) AAT4625IHS-1-B1 AAT4625IHS-1-T1

TSSOP8 EN (Active-low) AAT4625IHS-B1 AAT4625IHS-T1

AAT4625

USB Single-Channel Power Switch

4625.2002.1.0.93 7

Dim

Millimeters Inches

Min Max Min Max

A 1.35 1.75 0.053 0.069
A1 0.10 0.25 0.004 0.010
A2 1.45 0.057

B 0.33 0.51 0.013 0.020

C 0.19 0.25 0.007 0.010
D 4.80 5.00 0.189 0.197

E 3.80 4.00 0.150 0.157

e 1.27 0.050

H 5.80 6.20 0.228 0.244

L 0.40 1.27 0.016 0.050

Y 0.00 0.10 0.000 0.004

θ10° 8° 0° 8°

Note:

1. PACKAGE BODY SIZES EXCLUDE MOLD FLASH
PROTRUSIONS OR GATE BURRS.

2. TOLERANCE 0.1000mm (4mil) UNLESS
OTHERWISE SPECIFIED

3. COPLANARITY: 0.1000mm

4. DIMENSION L IS MEASURED IN GAGE PLANE.

5. CONTROLLING DIMENSION IS MILLIMETER;
CONVERTED INCH DIMENSIONS ARE NOT
NECESSARILY EXACT.

TSSOP-8

A1

b

e

E

1 2

AA2

E1

DETAIL A

R

L1

L

0.20

D

R1

2

E

1

DETAIL A

AAT4625

USB Single-Channel Power Switch

8 4625.2002.1.0.93

Advanced Analogic Technologies, Inc.

1250 Oakmead Parkway, Suite 310, Sunnyvale, CA 94086
Phone [phone]
Fax [phone]

Dim

Millimeters Inches

Min Max Min Max

A 1.05 1.20 0.041 0.047
A1 0.05 0.15 0.002 0.006
A2 - 1.05 - 0.041

b 0.25 0.30 0.010 0.012
c 0.127 0.005

D-8 2.90 3.10 0.114 0.122

D-28 9.60 9.80 0.378 0.386

E 4.30 4.50 0.170 0.177
E1 6.20 6.60 0.244 0.260

e 0.65 BSC 0.025 BSC
L 0.50 0.70 0.20 0.028

L1 1.0 0.039

R 0.09 - 0.004 ­R1 0.09 - 0.004 -

θ10° 8° 0° 8°
θ2 12°