DATA SHEET AAT4626 USB Dual-Channel Power Switch General Description Features The AAT4626 SmartSwitch is part of Skyworks' Application Specific Power MOSFET (ASPM™) product family. It is a dual-channel 500mA current-limited P-channel MOSFET power switch designed for high-side load switching applications. This switch operates with inputs ranging from 2.7V to 5.5V, making it ideal for both • 2.7V to 5.5V Input Voltage Range • Compliant with USB 1.1 and 2.0 Specifications • 500mA Minimum Continuous Current per Channel • 1.25A Maximum Current Limit per Channel •90mW Typical RDS(ON) • Low Quiescent Current: ▪ Typically 20µA ▪ 1µA Maximum with Switch Off • Thermal Shutdown • Slew Rate Limited Turn On • Fault Flag with 10ms Blanking • Under-Voltage Lockout (UVLO) • Temperature Range: -40°C to +85°C • UL Approved - File No. E217765 • 8-Pin SOP or MSOP Package 3V and 5V systems. An integrated current-limiting circuit protects the input supply against large changes in load current which may cause the supply to fall out of regulation. The AAT4626 is also protected from thermal overload which limits power dissipation and junction temperatures. The current limit threshold is factory programmed at 1.0A, with a maximum of 1.5A. The quiescent supply current is typically a low 20µA. In shutdown mode, the supply current decreases to less than 1µA. The AAT4626 is available in a Pb-free, 8-pin SOP package and is specified over the -40°C to +85°C temperature range. Applications • General-Purpose Power Switching • Hot Swap Supplies • Notebook Computers • USB Ports and Peripherals The AAT4600 series is a family of adjustable and fixed SmartSwitch products with a range of current handling capabilities. Single versions are available with adjustable current limit (AAT4601) or fixed current limit (AAT4626), as well as dual versions with fixed current limit (AAT4626). UL Recognized Component Typical Application 100kΩ 100kΩ VCC 5.0V 0.1µF 7 FLGA 2 IN ENA (ENA) 1 ENA (ENA) ENB (ENB) 4 ENB (ENB) AAT4626 FLGB 3 OUTA 8 OUTA OUTB OUTB 5 6 47µF GND 47µF GND Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201946A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • July 20, 2012 1 DATA SHEET AAT4626 USB Dual-Channel Power Switch Pin Descriptions Pin # Symbol Function 1, 4 EN(A/B) (EN(A/B)) 2, 3 FLG(A/B) 5, 8 6 OUT(A/B) GND 7 IN Enable inputs: logic-compatible enable input. Active high or active low option available; see Ordering Information for details. Fault flag outputs: active-low, open-drain output. Indicates over-current, UVLO, and thermal shutdown. Switch outputs: these pins are the P-channel MOSFET drain connection. Ground connection. Supply input: this pin is the source connection for the P-channel MOSFETs. Also supplies the IC’s internal circuitry. Pin Configuration SOP-8 (Top View) 1 FLGA FLGB ENB(ENB) 8 OUTA 2 7 3 6 4 5 IN GND OUTB 1 2 2 ENA(ENA) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201946A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • July 20, 2012 DATA SHEET AAT4626 USB Dual-Channel Power Switch Absolute Maximum Ratings1 Symbol VIN VFLG IFLG VOUT IOUT VEN TJ TS TLEAD Description IN to GND FLGA, FLGB to GND FLGA, FLGB Current OUTA, OUTB to GND Output Current EN (EN) to GND Operating Junction Temperature Range Storage Temperature Maximum Soldering Temperature (at Leads) Value Units -0.3 to 6 -0.3 to 6 50 -0.3 to VIN + 0.3 Internally Limite -0.3 to 6 -40 to 150 150 300 V mA V A V °C Thermal Information2 Symbol θJA PD Description Maximum Thermal Resistance Maximum Power Dissipation Value Units 100 1.25 °C/W W 1. Stresses above those listed in Absolute Maximum Ratings may cause permanent damage to the device. Functional operation at conditions other than the operating conditions specified is not implied. 2. Mounted on an FR4 printed circuit board with 1 oz. copper ground plane. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201946A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • July 20, 2012 3 DATA SHEET AAT4626 USB Dual-Channel Power Switch Electrical Characteristics VIN = 5V, TA = -40°C to +85°C, unless otherwise noted. Typical values are TA = 25°C; bold values designate full temperature range. Symbol IQ VEN-THRSH IEN CEN 4 Description Conditions Quiescent Current VIN = 5V, ENA and ENB Active Low-to-High Transition High-to-Low Transition VEN = 0V to 5.5V Enable Input Threshold Enable Input Current Enable Input Capacitance RDS(ON) On-Resistance TON TON-RISE TOFF TOFF-FALL ISD(OFF) ILIMIT Output Turn-On Delay Output Turn-On Rise Time Output Turn-Off Delay Output Turn-Off Fall Time Output Leakage Current Current Limit Threshold OTMP Over-Temperature Shutdown RFLG ISINK VUVLO TBLANK Error Flag Output Resistance Error Flag Off Current Under-Voltage Lockout FAULT Blanking VIN = 5V, Each Switch, TA = 25°C VIN = 3.0V, Each Switch, TA = 25°C VIN = 5V, RL = 10Ω RL = 10Ω VIN = 5V, RL = 10Ω RL = 10Ω EN = Inactive, VIN = 5.5V, VOUT = 0V Ramped Load Applied to Enable Output, VOUT < 4.0V TJ Increasing TJ Decreasing VIN = 5V, IL = 1mA VFLG = 5.5V VIN = Increasing, 1% Hysteresis Min Typ Max Units 20 40 2.4 µA 1 µA pF 0.8 0.01 1 90 100 0.25 0.2 5 0.75 2.0 0.03 1.0 125 115 30 0.05 2.3 2 130 150 20 20 1 1.50 1 2.7 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201946A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • July 20, 2012 V mΩ ms ms µs µs µA A °C Ω µA V ms DATA SHEET AAT4626 USB Dual-Channel Power Switch Typical Characteristics VIN = 5V, TA = 25°C, unless otherwise noted. Quiescent Current 30 25 25 20 Input Current (µA) Quiescent Current (µA) Quiescent Current vs. Temperature 20 15 10 5 0 -40 15 10 0 20 40 60 80 100 120 1 channel enabled 5 0 -20 2 channels enabled 0 1 2 Current Limit 6 1.0000 Off-Supply Current (µA) 1.2 Output Current (A) 5 Off-Supply Current vs. Temperature 1.4 1 0.8 0.6 0.4 0.2 0 1 2 3 4 0.1000 0.1000 0.0010 -40 5 -20 0 20 40 60 80 100 120 100 120 Temperature (°C) Output Voltage (V) RDS(ON) vs. Temperature Off-Switch Current vs. temperature 1.0000 140.0 (Both switches) 113.0 0.1000 120.0 RDS(ON) (mΩ) Off-Switch Current (µA) 4 Input Voltage (V) Temperature(°C) 0 3 0.1000 0.0010 0.0001 110.0 VIN = 3V 100.0 90.0 VIN = 5V 80.0 70.0 0.0000 -40 -20 0 20 40 60 Temperature (°C) 80 100 120 60.0 -40 -20 0 20 40 60 80 Temperature (°C) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201946A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • July 20, 2012 5 DATA SHEET AAT4626 USB Dual-Channel Power Switch Typical Characteristics VIN = 5V, TA = 25°C, unless otherwise noted. Turn On/Off Response with 10Ω, 1µF Load Start Into 1Ω Load EN (5V/div) EN (5V/div) FAULT (5V/div) FAULT (5V/div) VOUT (1V/div) VOUT (1V/div) IIN (500mA/div) IIN (500mA/div) Time (100µs/div) Time (1ms/div) Short-Circuit Through 0.3Ω Thermal Shutdown Response 12 EN (5V/div) 6 FAULT (5V/div) Output Current (A) Input and Output Voltage (V) 8 8 Input Voltage 4 VOUT (1V/div) 4 Output Current 2 IIN (500mA/div) 0 -1 Time (100ms/div) 0 Output Voltage 0 1 2 3 Time(µs) 12 8 4 0 Output Voltage 0 1 2 Time(µs) 6 4 Output Current 2 0 -1 8 Input Voltage 6 3 4 5 Output Current (A) Input and Output Voltage (V) Short-Circuit Through 0.6Ω -4 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201946A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • July 20, 2012 4 5 -4 DATA SHEET AAT4626 USB Dual-Channel Power Switch Functional Block Diagram IN OUTA OverTemperature Protection OUTB UnderVoltage Lockout ENB(ENB) ENA(ENA) 1.2V Referenc Current Over-Temp Protection Under-Voltage Lockout Limit Current Limit Over-Temp Protection Under-Voltage Lockout Current Limit Functional Description The AAT4626 is a dual integrated MOSFET load switch with a fixed level current limit, over-temperature protection, level shifted inputs, and a fault flag for each switch. The current limit control is combined with an over-temperature thermal limit circuit to provide a comprehensive system to protect the load switch under short-circuit or other adverse operating conditions. The AAT4626 is ide- ally suited for control and protection of peripheral ports such as USB, RS232, and parallel ports. The current limit and over-temperature circuits will act independently. The device current limit is activated when the output load current exceeds a preset internal threshold level. The minimum current limit threshold character- istic is specified by ILIM(MIN). If the load switch ambient temperature becomes excessive or if a short-circuit con- dition persists, the die temperature will rise, causing the over-temperature protection circuit to activate. If the current limit or over-temperature protection circuits are active for more than ten milliseconds, the sys- FLGA FLGB tem will be informed via the FAULT flag. The ten millisecond fault blanking delay allows the AAT4626 to be turned on into large capacitive loads without activating the FAULT flags. The open drain FAULT outputs can be con- nected directly to system controllers driven by voltage levels less than the IN pin voltage without additional level shifting circuitry. Each of the two load switches is turned on and off by applying a logic level signal to the EN(A/B) pin. The AAT4626 enable function is available in both active high and active low logic level versions. The AAT4626 typically consumes 20µA when operating; when off, the device draws less than 1µA. In the off state, current is prevented from flowing between the input and output on each respective channel. The EN(A/B) function has logic level thresholds that allow the AAT4626 to be TTL compatible and may also be controlled by 2.5V to 5.0V CMOS circuits. The voltage level on either EN(A/B) or FAULT(A/B) should not exceed the input supply level present on the IN pin. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201946A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • July 20, 2012 7 DATA SHEET AAT4626 USB Dual-Channel Power Switch Applications Information Operation in Current Limit IMAX = TSD(MIN) - TA(MAX) RDS(ON)(MAX) ∙ RθJA If an excessive load is applied to either output of an AAT4626, the load current will be limited by the device’s current limit circuitry. Refer to the “Current Limit” curve in the Typical Characteristics section of this datasheet. If a short circuit were to occur on the load applied to either the A or B output, there would be a demand for more current than what is allowed by the internal current limiting circuit and the voltage at the device output will drop. This causes the AAT4626 to dissipate more power than in normal operation, causing the die temperature to increase. When die temperature exceeds the internal over-temperature threshold, the AAT4626 will shut down both the A and B output channels. After shutting down, the AAT4626 cools to a level below the over-temperature threshold, at which point it will start up again. The AAT4626 will continue to cycle off and on until one of the following events occurs: the load current is reduced to a level below the AAT4626’s current limit setting; the input power is removed; or the output is turned off by a logic high level applied to the EN pin. TSD(MIN) is the minimum temperature required to activate the device over-temperature protection. The typical thermal limit temperature specification is 125°C for the AAT4626; for calculations, 115°C is a safe minimum value to use. Thermal Considerations The input capacitor serves two purposes. First, it protects the source power supply from transient current effects generated by the application load circuit. If a short circuit is suddenly applied to the output of an AAT4626, there is a microsecond long period during which a large current can flow before the current limit circuit becomes active. Refer to the characteristic curve “Short Circuit Through 0.3W." A properly sized input capacitor can dramatically reduce the load switch input transient response effects seen by the power supply and other circuitry upstream from the AAT4626. Since the AAT4626 has internal current limit and overtemperature protection, junction temperature is rarely a concern. If an application requires a large load current in a high temperature operating environment, there is the possibility that the over-temperature protection circuit rather than the current limit circuit from one of the two outputs will regulate the current available to the load. In these applications, the maximum current available without risk of activation of the over-temperature circuit can be calculated. The maximum internal temperature while current limit is not active can be calculated using Equation 1: TJ(MAX) = IMAX2 ∙ RDS(ON)(MAX) ∙ RθJA + TA(MAX) In Equation 1, IMAX is the maximum current required by the load. RDS(ON)(MAX) is the maximum rated RDS(ON) of the AAT4626 at high temperature. RqJA is the thermal resistance between the device die and the board onto which it is mounted. TA(MAX) is the maximum ambient temperature for the printed circuit board assembly under the AAT4626 when the load switch is not dissipating power. Equation 1 can be transformed to provide IMAX; Refer to Equation 2. 8 For example, a portable device is specified to operate in a 50°C environment. The printed circuit board assembly will operate at temperatures as high as 85°C. This portable device has a sealed case and the area of the printed board assembly is relatively small, causing RqJA to be approximately 100°C/W. RDS(ON)(MAX) = 130mΩ. Using Equation 2, IMAX = 115°C - 85°C = 1.52A 0.13Ω · 100°C/W If this system requires less than 1.52A, the thermal limit will not activate during normal operation. Input Capacitor The second purpose of the input capacitor is to prevent transient events generated by the load circuits from effecting the operation of the AAT4626. For example, if an AAT4626 is used in a circuit that operates from a 5V power supply with poor step load response, it is possible that turning on the load switch could cause the input power supply to droop below the AAT4626's under-voltage lockout threshold. This drop in voltage would cause the AAT4626 to turn off until the input power supply voltage levels recover. Since this cycle would be selfperpetuating, the entire circuit could be seen to be unstable. In the very rare case where capacitor cost is prohibitive and the input capacitor is omitted, the output load circuit should be slew rate limited when turned on. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201946A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • July 20, 2012 DATA SHEET AAT4626 USB Dual-Channel Power Switch Output Capacitor In order to insure stability while the device current limit is active, a small capacitance of approximately 1µF should be used on each output. When either output of the AAT4626 is activated using the EN(A/B) function, there are no momentary current transients, as in the case when a short circuit is suddenly applied to a device that is already on. Refer to the Typical Characteristics curve “Turn-On/Off Response.” Regardless of output capacitor size, output current on either output is limited to the value allowed by the threshold determined by the internal current limiting circuitry. Refer to the internal current limit threshold specifications stated in the Electrical Characteristics section of this datasheet. This permits very large output capacitors to be used. For example, USB ports are specified to have at least 120µF of downstream capacitance from their controlling power switch. An output capacitance as large as 1000µF would not disturb the input power supply to an AAT4626 used to control a USB port. for more than approximately ten milliseconds, the FLG(A/B) pin is pulled to ground internally through an open drain device. The 10ms delay on the fault function is intended to prevent capacitive loads connected to one of the load switch outputs from activating its respective flag when the device is turned on. The placement of a pull-up resistor between the FLGA or FLGB pin and the IN pin is recommended. Reasonable values for the pullup resistor should range from 10kW to 100kW. Since the fault flags are open drain terminals, they may be pulled up to any voltage that is not greater than the level present on the IN pin. This is done to allow the AAT4626 to signal ancillary circuitry that is powered by voltage levels less than the level on the IN pin. If a fault flag delay greater than 10ms is required, addition delay may be added by use of an RC filter. As shown in Figure 1, an RC filter can be added to the fault flag output. V+ USB Controller EN Input The AAT4626 has two enable inputs, ENA and ENB. These two enable inputs allow the AAT4626 to independently control each respective output. The device is available in both active high EN enable and active low (EN) enable versions. For specific part numbers, refer to the ordering information section. When both the A and B outputs of the AAT4626 are in the off state, the respective outputs are an open circuit and the device quiescent current consumption is reduced to less than 1µA. The ENA and ENB threshold voltages are set to allow the AAT4626 to be controlled by 5V TTL levels, as well as CMOS-compatible levels ranging from 2.5V to 5V. The ENA or ENB function control voltage levels should not exceed the input supply level applied to the IN pin. Over-Current Flag Input 100kΩ R1 10kΩ 1 2 3 C1 0.1µF 4 AAT4626 ENA OUTA FLGA IN FLGB GND ENB OUTB 8 7 6 5 Figure 1: Fault Flag Delay RC Filter. Reverse Voltage The AAT4626 is designed to control current flowing from IN to OUT. If a voltage is applied to OUT which is greater than that on IN, a large resulting reverse current may flow, potentially damaging the AAT4626. Fault Flag Output Under-Voltage Lockout The AAT4626 features an active low fault flag (FLGA andFLGB) output for each A and B output channel. The faultflags are provided to alert the system if the over-currentor over-temperature circuits become active, or if the load switch is not receiving a sufficient voltage level to properly operate. If either the current limit or overtemperature circuits in any combination are constantly active The AAT4626 has been designed with an under-voltage lockout control circuit. The under-voltage lockout prevents the output MOSFET devices from turning on until VIN exceeds the typical UVLO threshold of 2.3V. During operation, the device will automatically shut down if VIN falls below the UVLO threshold and the fault flags will be toggled. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201946A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • July 20, 2012 9 DATA SHEET AAT4626 USB Dual-Channel Power Switch Hot-Plug Applications Refer to the following guidelines for power port PCB layout: Application circuit cards with a high inrush current potential can be limited by use of the AAT4626. The AAT4626 has both slew rate limited turn on characteristics and current limit controlled outputs, which make it ideally suited for power port hot-plug applications. A host power back plane or hot-plug receptacle may be sensitive to short duration, high power surges. The AAT4626 will turn on in a linear ramping fashion and regulate the inrush current within the specified current limit for the device. The error flag usually will not be affected during application turn-on since the 10ms fault flag blanking time is intended for these types of events. If an application turn-on current surge exceeds 10ms, an RC delay filter may be added to the flag output to prevent the system from receiving an error during the start-up sequence. 1. PCB traces should be kept as short and direct as possible to minimize the effects of the PCB on circuit performance. 2. Make component solder pads large to minimize contact resistance. 3. The AAT4626 output bulk capacitors and ferrite beads should be placed as close to the device as possible. PCB traces to the output connector should be kept as short as possible to minimized trace resistance and the associated voltage drop (I2R loss). 4. If ferrite beads are used in the circuit, select ferrite beads with a minimum series resistance. 5. The use of PCB trace vias should be avoided on all traces that conduct high currents. If vias are necessary, make the vias as large as possible and use multiple vias connected in parallel to minimize their effect. PCB Layout Information In order to obtain the maximum performance from the AAT4626, very careful attention must be considered in regard to the printed circuit board layout. In most port power switch and port protection applications, high voltage and current transient events will occur. Proper PCB layout can help reduce the effects of transient events. PCB trace resistance will effect overall circuit transient response; small voltage drops will also be incurred. Cable / Connector to Hot-Plug Port VBUS The AAT4626 evaluation layout follows the recommend printed circuit board layout procedures and can be used as an example for good application layouts. (See Figures 4, 5, and 6.) Note that ferrite beads are not used on this simple device evaluation board. The board layout shown is not to scale. 0.1µF AAT4626 v+ 1 2 CIN 0.47µF Hot-Plug Receptacle GND Evaluation Board Layout 3 4 ENA FLGA OUTA IN FLGB GND ENB OUTB 8 7 6 CBULKA (120µF) Card Application Circuit A 5 CBULKB GND Dual Channel Inrush Current Protected Application Card Card Application Circuit B (120µF) Figure 2: AAT4626 Input Inrush Current Protected Dual Output Application. 10 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201946A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • July 20, 2012 DATA SHEET AAT4626 USB Dual-Channel Power Switch P-Channel MOSFET Switch On Resistance 0.09Ω (45mV) Trace Resistance 0.01Ω (5mV) Ferrite Bead and PCB Trace Resistance 0.02Ω (10mV) Cable, Connector, and Contact Resistance 0.03Ω (15mV) V+ Input Power Supply 4.50V to 5.25V VBUS CBULK GND 0.1µF AAT4625 Ch. A (5mV) CBULK (10mV) 0.1µF (15mV) GND Downstream Peripheral Port 500mA Max. Load Current Total Voltage Drop = 75mV Figure 3: Summary of Typical Circuit Voltage Drops Caused by AAT4626 Circuit Components and PCB Trace Resistance. Figure 4: AAT4626 Evaluation Board Component Side Layout. Figure 5: AAT4626 Evaluation Board Solder Side Layout. Figure 6: AAT4626 Evaluation Board Top Side Silk Screen Layout/Assembly Drawing. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201946A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • July 20, 2012 11 DATA SHEET AAT4626 USB Dual-Channel Power Switch Application Circuits 7 VBUS = 5.0V CIN 0.1µF R2 100kΩ R1 100kΩ IN OUTA Ferrite Beads 8 VBUS AAT4626 D+ COUT2 120µF COUT1 0.1µF DGND USB Controller Error Flag B On/Off B → 1 → → On/Off A Error Flag A 2 3 → 4 ENA DATA (Port A) FLGA FLGB ENB OUTB Ferrite Beads 5 VBUS 6 D+ COUT4 120µF COUT3 0.1µF DGND DATA (Port A) Figure 7: Typical USB Host Port Application. Vcc 5.0V 100kΩ 4.50V to 5.25V Upstream V BUS 100mA Maximum VBUS 100kΩ AAT3220-3.3 IN OUT GND D+ D- 1µF GND 1µF 3.3V USB Controller VIN ON/OFF A 0.1µF AAT4626 Ferrite Beads VBUS(A) ENA OUTA IN Over-Current A FLGA Over-Current B FLGB GND ON/OFF B ENB OUTB USB Port A 120µF D+ 0.1µF GND DGND Ferrite Beads USB Port B VBUS(B) Data 120µF D+ 0.1µF DGND DATA A/B (Two Pairs to USB Controller) Figure 8: Self-Powered Single Port USB Hub. 12 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201946A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • July 20, 2012 DATA SHEET AAT4626 USB Dual-Channel Power Switch 100kΩ 4.50V to 5.25V Upstream VBUS 100mA Maximum VBUS 100kΩ AAT3220-3.3 IN OUT GND D+ D- 1µF GND 1µF 3.3V USB Controller VIN ON/OFF A 0.1µF AAT4626 Ferrite Beads USB Port A VBUS(A) ENA OUTA Over-Current A FLGA Over-Current B FLGB GND ON/OFF B ENB OUTB IN 120µF D+ 0.1µF D- GND GND DATA A Ferrite Beads USB Port B VBUS(B) Data 120µF 0.1µF D+ DGND DATA B Figure 9: USB Bus Powered Single Port USB Hub. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201946A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • July 20, 2012 13 DATA SHEET AAT4626 USB Dual-Channel Power Switch Ordering Information Package Enable Marking1 Part Number (Tape and Reel)2 SOP-8 SOP-8 EN (Active-high) EN (Active-low) 4626-1 4626 AAT4626IAS-1-T1 AAT4626IAS-T1 Skyworks Green™ products are compliant with all applicable legislation and are halogen-free. For additional information, refer to Skyworks Definition of Green™, document number SQ04-0074. Package Information 6.00 ± 0.20 3.90 ± 0.10 SOP-8 4.90 ± 0.10 0.42 ± 0.09 × 8 1.27 BSC 45° 4° ± 4° 0.175 ± 0.075 1.55 ± 0.20 0.375 ± 0.125 0.235 ± 0.045 0.825 ± 0.445 All dimensions in millimeters. 1. XYY = assembly and date code. 2. Sample stock is generally held on part numbers listed in BOLD. 14 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201946A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • July 20, 2012 DATA SHEET AAT4626 USB Dual-Channel Power Switch Copyright © 2012 Skyworks Solutions, Inc. All Rights Reserved. Information in this document is provided in connection with Skyworks Solutions, Inc. (“Skyworks”) products or services. These materials, including the information contained herein, are provided by Skyworks as a service to its customers and may be used for informational purposes only by the customer. Skyworks assumes no responsibility for errors or omissions in these materials or the information contained herein. Skyworks may change its documentation, products, services, specifications or product descriptions at any time, without notice. Skyworks makes no commitment to update the materials or information and shall have no responsibility whatsoever for conflicts, incompatibilities, or other difficulties arising from any future changes. No license, whether express, implied, by estoppel or otherwise, is granted to any intellectual property rights by this document. Skyworks assumes no liability for any materials, products or information provided hereunder, including the sale, distribution, reproduction or use of Skyworks products, information or materials, except as may be provided in Skyworks Terms and Conditions of Sale. THE MATERIALS, PRODUCTS AND INFORMATION ARE PROVIDED “AS IS” WITHOUT WARRANTY OF ANY KIND, WHETHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, INCLUDING FITNESS FOR A PARTICULAR PURPOSE OR USE, MERCHANTABILITY, PERFORMANCE, QUALITY OR NON-INFRINGEMENT OF ANY INTELLECTUAL PROPERTY RIGHT; ALL SUCH WARRANTIES ARE HEREBY EXPRESSLY DISCLAIMED. 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Customers are responsible for their products and applications using Skyworks products, which may deviate from published specifications as a result of design defects, errors, or operation of products outside of published parameters or design specifications. Customers should include design and operating safeguards to minimize these and other risks. Skyworks assumes no liability for applications assistance, customer product design, or damage to any equipment resulting from the use of Skyworks products outside of stated published specifications or parameters. Skyworks, the Skyworks symbol, and “Breakthrough Simplicity” are trademarks or registered trademarks of Skyworks Solutions, Inc., in the United States and other countries. Third-party brands and names are for identification purposes only, and are the property of their respective owners. Additional information, including relevant terms and conditions, posted at www.skyworksinc.com, are incorporated by reference. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201946A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • July 20, 2012 15