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AAT4644 Datasheet(PDF) 1 Page - Advanced Analogic Technologies |
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AAT4644 Datasheet(HTML) 1 Page - Advanced Analogic Technologies |
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1 / 8 page  SmartSwitch™ AAT4644 4-Channel Current Limited Load Switch 4644.2006.05.1.2 1 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. 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 Ω Typical RDS(ON) • Under-Voltage Lockout • Temperature Range: -40°C to +85°C • 8-Pin TSSOP or SOP Package Applications • Desktop PCs • Peripheral Ports • USB Ports Typical Application AAT4644 2, 7 1 3 8 6 4 IN INPUT 3.3V - 5V GND OUT1 OUT2 OUT3 OUT4 OUTPUT1 OUTPUT2 OUTPUT3 OUTPUT4 |
Similar Part No. - AAT4644_06 |
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Similar Description - AAT4644_06 |
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