AAT4625IKS-T1 AnalogicTech, AAT4625IKS-T1 Datasheet

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AAT4625IKS-T1

Manufacturer Part Number
AAT4625IKS-T1
Description
FET, USB Single-Channel Power Switch
Manufacturer
AnalogicTech
Datasheet
General Description
The
AnalogicTech's
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 over-
load 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, TSSOP, or
MSOP and is specified over a -40 to 85°C temper-
ature range.
The AAT4600 Series is a family of adjustable and
fixed SmartSwitch™ products with a range of cur-
rent 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.
Typical Application
4625.2002.12.0.95
AAT4625
V
CC
GND
5.0V
0.1µF
Application
SmartSwitch™
100k
EN (EN)
Specific
7
2
1
is
IN
FLG
EN (EN)
part
Power
AAT4625
of
3
USB Single-Channel Power Switch
Features
Applications
UL Recognized Component
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
Low quiescent current
Thermal shutdown
Slew rate limited turn on
Fault flag with 10ms blanking
Undervoltage Lockout
Temp range -40 to 85°C
UL Approved—File No. E217765
8 pin SOP, TSSOP, or MSOP package
USB ports and peripherals
Notebook computers
Hot swap supplies
General purpose power switching
OUT
OUT
Typically 16µA
1µA max with Switch off
6
8
DS(ON)
SmartSwitch
120µF
OUTPUT
AAT4625
GND
1

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AAT4625IKS-T1 Summary of contents

Page 1

... General Description The AAT4625 SmartSwitch™ AnalogicTech's Application MOSFET™ (ASPM™) product family 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 ...

Page 2

Pin Descriptions 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 ...

Page 3

Absolute Maximum Ratings Symbol Description GND IN V FLG to GND FLG I FLG Current FLG V OUT to GND OUT I Output Current (Internally Limited) OUT GND EN T Storage Temperature S T ...

Page 4

Electrical Characteristics are at T =25°C; bold values designate full temperature range) A Symbol Description V Operation Voltage IN I Quiescent Current Q I Off Supply Current Q(OFF) V Enable Input Threshold EN-THRSH I Enable Input Current EN C Enable ...

Page 5

Typical Characteristics (Unless otherwise noted 5V Quiescent Current vs. Temperature -40 - Temperature (°C) Current Limit 1.8 1.6 1.4 1.2 1 0.8 0.6 0.4 0.2 ...

Page 6

Start Into 1 Ohm load EN (5V/div) FAULT (5V/div) Vout (1V/div) Iin (500mA/div) 1ms/div Short Circuit Through 0.3 Ohm 8 6 Input Voltage 4 Output Current 2 Output Voltage ...

Page 7

Functional Block Diagram IN EN (EN) Functional Description The AAT4625 is an integrated MOSFET load switch with a fixed current limit, over temperature protection, level shifted input and a fault flag. The current limit control is combined with an over ...

Page 8

Applications Information Operation in Current Limit If an excessive load is applied to the output of an AAT4625, the load current will be limited by the AAT4625's current limit circuitry. "Current Limit" figure in the typical characteristics section of this ...

Page 9

Output Capacitor In order to insure stability while the device current limit is active, a small capacitance of approximately 1µF should be used. When the AAT4625 is activat- ed using the ON function, there are no momentary current transients as ...

Page 10

Reverse Voltage The AAT4625 is designed to control current flowing from IN to OUT voltage is applied to OUT which is greater than that on IN, a large resulting reverse current may flow, potentially damaging the AAT4625. Under ...

Page 11

Refer to the following guide lines for power port PCB layout: 1. PCB traces should be kept as short and direct as possible to minimize the effects of the PCB on circuit performance. 2. Make component solder pads large to ...

Page 12

Application Circuits V = 5.0V BUS C IN 0.1µF USB Controller Error Flag On/Off Figure 7: Typical USB Host Port Application 4.50V to 5.25V Upstream V BUS 100mA Maximum AAT3220-3 OUT BUS GND D+ D- 1µF GND Data ...

Page 13

... EN (Active-low) MSOP8 EN (Active-high) MSOP8 EN (Active-low) Package Information 4.90 ± 0.10 0.42 ± 0.09 × 8 1.27 BSC 4625.2002.12.0.95 USB Single-Channel Power Switch Marking Bulk N/A N/A N/A N/A N/A N/A SOP-8 0.375 ± 0.125 45° 0.825 ± 0.445 AAT4625 Part Number Tape and Reel AAT4625IAS-1-T1 AAT4625IAS-T1 AAT4625IHS-1-T1 AAT4625IHS-T1 AAT4625IKS-1-T1 AAT4625IKS-T1 0.235 ± 0.045 13 ...

Page 14

USB Single-Channel Power Switch TSSOP-8 12° REF × 4 3.00 ± 0.10 0.65 BSC 0.10 ± 0.05 12° DETAIL A AAT4625 0.145 ± 0.055 4° ± 4° 0.60 ± 0.15 1.00 REF 4625.2002.12.0.95 ...

Page 15

PIN 1 0.075 ± 0.075 4625.2002.12.0.95 USB Single-Channel Power Switch MSOP-8 1.95 BSC 0.254 BSC 3.00 ± 0.10 10° ± 5° 0.65 BSC 0.30 ± 0.08 AAT4625 4° ± 4° 0.60 ± 0.20 0.155 ± 0.075 15 ...

Page 16

Advanced Analogic Technologies, Inc. 830 E. Arques Avenue, Sunnyvale, CA 94085 Phone (408) 737-4600 Fax (408) 737-4611 16 USB Single-Channel Power Switch This page intentionally left blank. AAT4625 4625.2002.12.0.95 ...

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