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AP1212

Anachip
Part Number AP1212
Manufacturer Anachip
Description Dual USB High-Side Power Switch
Published Aug 7, 2015
Detailed Description Dual USB High-Side Power Switch AP1212 „ Features - Compliant to USB specifications - Dual independent switches contro...
Datasheet PDF File AP1212 PDF File

AP1212
AP1212


Overview
Dual USB High-Side Power Switch AP1212 „ Features - 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) - 8-pin SOP and PDIP packages „ Applications • USB hubs • Hot plug-in power supplies • Battery-charger circuits „ General Description 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.
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.
„ Pin Assignments (Top View) EN1 1 FLG1 2 FLG2 3 EN2 4 AP1212 8 OUT1 7 IN 6 GND 5 OUT2 PDIP/SOP „ Pin Descriptions Name EN1 EN2 FLG1 FLG2 GND IN OUT1 OUT2 Description Enable: Logic-compatible enable input.
( H: active high, L: active low).
Do not float.
Fault Flag: Active-low, ...


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