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AAT4644 - 4-Channel Current Limited Load Switch

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.

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

Datasheet Details

Part number AAT4644
Manufacturer Skyworks Solutions
File Size 227.67 KB
Description 4-Channel Current Limited Load Switch
Datasheet download datasheet AAT4644 Datasheet

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Full PDF Text Transcription

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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.
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