Datasheet4U Logo Datasheet4U.com

AAT4644 - 4-Channel Current Limited Load Switch

General 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.

Current limit is factory programmed at 1A.

Key Features

  • 500mA per Channel Steady State.
  • 4 x 1A Current Limit Trip Point.
  • Over-Temperature Protection.
  • Fast Transient Response:.
  • 1μs (Typ) Response to Short Circuit.
  • 100m Typical RDS(ON).
  • Under-Voltage Lockout.
  • Temperature Range: -40°C.

📥 Download Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
AAT4644 4-Channel Current Limited Load Switch Advanced Analogic Technologies
AAT4601 1.5A Current Limited P-Channel Switch Advanced Analogic Technologies
AAT4601 1.8A Current Limited P-Channel Switch Skyworks
AAT4601A 1.8A Current Limited P-Channel Switch Advanced Analogic Technologies
AAT4608 Current Limited Load Switch in SOT-23 Package Advanced Analogic Technologies

Other Datasheets by Skyworks Solutions

Part Number Description
AAT4611 Current Limited Load Switch
AAT4618 Current Limited Load Switch
AAT4625 USB Single-Channel Power Switch
AAT4626 USB Dual-Channel Power Switch
AAT4650 5V/3V PC Card Power Switch

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
General 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. Current limit is factory programmed at 1A. Additional protection is provided with under-voltage lockout. The switches are turned off when the input voltage drops below a preset level. The quiescent supply current is typically 20μA. 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 a Pb-free, 8-pin TSSOP or SOP package and is specified over the -40°C to +85°C temperature range.