LM3544M-H National Semiconductor, LM3544M-H Datasheet - Page 7

• Manufacturer Part Number: LM3544M-H
• Description: Quad Port USB Power Distribution Switch and Over-Current Protection
• Manufacturer: National Semiconductor

Typical Performance Characteristics
specified. (Continued)
Note 10: Output is shorted to Ground through a 100 m
Note 11: Load is two capacitors and one resistor in parallel to model an actual USB load condition. The first capacitor has a value of 33 µF to model the LM3544
output capacitor. The second capacitor has a value of 10 µF to model the maximum allowable input capacitance of the downstream device. The resistor is a 47
resistor to model the maximum allowable input resistance of the downstream device.
Turn-On/Turn-Off Response with 47 /33µF Load
on OUT1 and Fixed Load on OUT2 (Note 10)
Over-Current Response with Ramped Load
Enable Into a Short (Note 10)
10120822
resistor.
10120818
10120820
V
7
IN
= 5.0, I
Turn-On/Turn-Off Response with 10 /33µF Load
Short Connected to Enabled Device (Note 10)
OUT_X
Inrush Current to Downstream Device
when LM3544 is Enabled (Note 11)
= 500mA, T
A
= 25˚C unless otherwise
10120821
10120823
10120819
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