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AAT4644

Features: • 500mA per channel steady state• 4 X 1A current limit trip point• Over-temp protection• Fast transient response:• 1s (typ) response to short circuit• 100m typical RDS(ON)• Undervoltage Lockout• Temp range -40 to 85• 8 pin TSSOP or SO...

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AAT4644: Features: • 500mA per channel steady state• 4 X 1A current limit trip point• Over-temp protection• Fast transient response:• 1s (typ) response to short circuit• 1...

AAT4644 Data Sheet

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Part Number:
AAT4644
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

• 500mA per channel steady state
• 4 X 1A current limit trip point
• Over-temp protection
• Fast transient response:
• 1s (typ) response to short circuit
• 100m typical RDS(ON)
• Undervoltage Lockout
• Temp range -40 to 85
• 8 pin TSSOP or SOP packages


Application

• USB ports
• Peripheral ports
• Desktop PCs


Pinout

Connection Diagram


Specifications

Symbol
 Description
Value
Units
VIN
 IN to GND
-0.3 to 6
V
VOUT
 OUT to GND
-0.3 to 6
V
IOUT
 Output Current
Internally Limited
A
TJ
 Operating Junction Temperature Range
-40 to 85
VESD
 ESD Rating1-HBM
4000
V
TLEAD
 Maximum Soldering Temperature (at Leads)
300

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.
Note 1: Human body model is a 100pF capacitor discharged through a 1.5k resistor into each pin.


Description

The AAT4644 is a four-channel resettable fuse. It utilizes independent current-limited and thermally protected P-channel MOSFETs to protect against short circuits. Each switch's current limit is factory programmed at 1A. Additional protection is provided with undervoltage lockout; the switches are turned off when the input voltage drops below a preset level. The quiescent supply current is typically 20A. The AAT4644 is a flexible solution,allowing system designers to gang outputs together for lower RDS(ON) and higher current limit.

The AAT4644 is available in 8 pin TSSOP or SOP packages, specified over -40 to 85.




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