Diodes Incorporated AP1212
The AP1212 series are dual integrated high-side power switch with independent enable and flag functions, optimized for self-powered and bus-powered Universal Serial Bus (USB) applications. The AP1212 series support the following USB requirements: each switch channel supplies up to 500mA as required by USB downstream devices; the switch’s low on-resistance meets USB voltage drop requirements; fault current is limited to typically 1000mA, well below the UL 25VA safety requirements; and a flag output is available to indicate fault conditions to the local USB controller.FEATURES
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● Compliant to USB specifications Dual independent switches control 2.7V to 5.5V input voltage 500mA minimum continuous current per port 110mΩ typical on-resistance 1.25A maximum short circuit current limit Independent open-drain fault flag pins 110μA typical on-state supply current 1μA typical off-state supply current Output can be forced higher than input (off-state) Thermal shutdown 2.4V typical under voltage lockout (UVLO) 1ms turn-on (soft-start) and fast turn-off Enable active-high (H) or active-low (L) SOP-8L: Available in “Green” Molding Compound (No Br, Sb) Lead Free Finish/RoHS Compliant (Note 1)
GENERAL DESCRIPTION
Soft start eliminates the momentary voltage drop on the upstream port that may occur when the switch is enabled in bus-powered applications. Additional features include thermal shutdown to prevent catastrophic switch failure from high-current loads, under voltage lockout (UVLO) to ensure that the device remains off unless there is a valid input voltage present, and 3.3V and 5V logic compatible enable inputs.