AP1212

Switch Voltage (Max) :
On Time (Max) :
Off Time (Max) :
Operating Supply Voltage :
Number of Switches :
Switch Configuration :
Maximum Operating Temperature : + 85 C
Mounting Style : Through Hole
Package / Case : DIP-8
On Resistance (Max) : 110 mOhms


Features:

Compliant to USB specifications
Dual independent switches control
2.7V to 5.5V input voltage
500mA minimum continuous current per port
110m typical on-resistance
1.25A maximum short circuit current limit
Independent open-drain fault flag pins
110A typical on-state supply current
1A 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

Application

• USB hubs
• Hot plug-in power supplies
• Battery-charger circuits


Pinout




Specifications

Symbol	Parameter	Rating	Unit
VIN	Supply Voltage	+7	V
VFLG	Fault Flag Voltage	+7	V
lFLG	Fault Flag Current	50	mA
VOUT	Output Voltage	+7	V
VEN	Control Input Range	0.3 to VIN +2	V
TST	Storage Temperature	-65 to +150
TLEAD	Lead Temperature	260
ESD Rating	Note 3	4	KV

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 of AP1212 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.