FPF2140/42/43/44/46/47 tm Full Function Load Switch with Reverse Current Blocking Features General Description 1.8 to 5.5V Input Voltage Range The FPF2140/42/43/44/46/47 is a series of load switches which provides full protection to systems and loads which may encounter large current conditions. These devices contain a 0.12Ω current-limited P-channel MOSFET which can operate over an input voltage range of 1.8-5.5V. Internally, current is prevented from flowing when the MOSFET is off and the output voltage is higher than the input voltage. Switch control is by a logic input (ON) capable of interfacing directly with low voltage control signals. Each part contains thermal shutdown protection which shuts off the switch to prevent damage to the part when a continuous over-current condition causes excessive heating. Controlled Turn-On 200mA and 400mA Current Limit Options Undervoltage Lockout Thermal Shutdown <2µA Shutdown Current Auto Restart Fast Current limit Response Time 5µs to Moderate Over Currents 30ns to Hard Shorts When the switch current reaches the current limit, the part operates in a constant-current mode to prohibit excessive currents from causing damage. For the FPF2140/42/44/46, if the constant current condition still persists after 30ms, the part will shut off the switch and pull the fault signal pin (FLAGB) low. The FPF2140/44 have an auto-restart feature which will turn the switch on again after 450ms if the ON pin is still active. The FPF2142/46 do not have this auto-restart feature so the switch will remain off until the ON pin is cycled. For the FPF2143/47, a current limit condition will immediately pull the fault signal pin low and the part will remain in the constant-current mode until the switch current falls below the current limit. The minimum current limit is 200mA for the FPF2140/42/43 while that for the FPF2144/46/47 is 400mA. Fault Blanking Reverse Current Blocking Power Good Function RoHS Compliant Applications PDAs Cell Phones GPS Devices MP3 Players Digital Cameras Peripheral Ports These parts are available in a space-saving 6 pin 2X2 MLP package. Hot Swap Supplies Pin 1 TOP BOTTOM Ordering Information Part Current Limit [mA] Current Limit Blanking Time [ms] Auto-Restart Time [ms] ON Pin Activity FPF2140 200/300/400 15/30/60 225/450/900 Active HI FPF2142 200/300/400 15/30/60 NA Active HI FPF2143 200/300/400 0 NA Active HI FPF2144 400/600/800 15/30/60 225/450/900 Active HI FPF2146 400/600/800 15/30/60 NA Active HI FPF2147 400/600/800 0 NA Active HI ©2007 Fairchild Semiconductor Corporation FPF2140/42/43/44/46/47 Rev. D 1 www.fairchildsemi.com FPF2140/42/43/44/46/47 Full Function Load Switch with Reverse Current Blocking October 2007 TO LOAD VIN VOUT FPF2140/2/3/4/6/7 FLAGB PGOOD OFF ON ON GND Functional Block Diagram VIN UVLO REVERSE CURRENT BLOCKING CONTROL LOGIC ON THERMAL SHUTDOWN CURRENT LIMIT VOUT FLAGB PGOOD GND FPF2140/42/43/44/46/47 Rev. D 2 www.fairchildsemi.com FPF2140/42/43/44/46/47 Full Function Load Switch with Reverse Current Blocking Typical Application Circuit ON 6 GND 5 FLAGB 4 7 1 PGOOD 2 VIN 3 VOUT 2X2 MicroFET-6 Pin Description Pin Name 1 PGOOD 2 VIN 3 VOUT 4 FLAGB 5, 7 GND 6 ON Function Power Good output: Open drain output which indicate that output voltage has reached 90% of input voltage Supply Input: Input to the power switch and the supply voltage For the IC Switch Output: Output of the power switch Fault Output: Active LO, open drain output which indicates an over current supply under voltage or over temperature state. Ground ON Control Input Absolute Maximum Ratings Parameter Min VIN, VOUT, ON, FLAGB, PGOOD to GND -0.3 Max Power Dissipation Operating and Storage Junction Temperature -65 Thermal Resistance, Junction to Ambient Electrostatic Discharge Protection Unit 6 V 1.2 W 150 °C 86 °C/W HBM 4000 V MM 400 V Recommended Operating Range Parameter Min Max Unit VIN 1.8 5.5 V Ambient Operating Temperature, TA -40 85 °C Electrical Characteristics VIN = 1.8 to 5.5V, TA = -40 to +85°C unless otherwise noted. Typical values are at VIN = 3.3V and TA = 25°C. Parameter Symbol Conditions Min Typ Max Units 5.5 V 70 100 Basic Operation Operating Voltage 1.8 VIN VIN = 1.8V Quiescent Current On-Resistance FPF2140/42/43/44/46/47 Rev. D IQ RON IOUT = 0mA 40 VIN = 3.3V 75 VIN = 5.5V 85 120 TA = 25°C, IOUT = 200mA 120 160 TA = 85°C, IOUT = 200mA 135 3 µA mΩ www.fairchildsemi.com FPF2140/42/43/44/46/47 Full Function Load Switch with Reverse Current Blocking Pin Configuration VIN = 1.8 to 5.5V, TA = -40 to +85°C unless otherwise noted. Typical values are at VIN = 3.3V and TA = 25°C. Parameter Symbol ON Input Logic High Voltage (ON) VIH ON Input Logic Low Voltage VIL Conditions Min VIN = 1.8V 0.8 VIN = 5.5V 1.4 Typ Max Units V VIN = 1.8V 0.5 VIN = 5.5V 1 V ON Input Leakage VON = VIN or GND -1 1 µA VIN Shutdown Current VON = 0V, VIN = 5.5V, VOUT = short to GND -2 2 µA FLAGB Output Logic Low Voltage VIN = 5V, ISINK = 10mA 0.05 0.2 VIN = 1.8V, ISINK = 10mA 0.12 0.3 FLAGB Output High Leakage Current VIN = VON = 5V PGOOD Threshold Voltage VIN = 5.5V 1 PGOOD Threshold Voltage Hysteresis PGOOD Output Logic Low Voltage PGOOD Output High Leakage Current V µA 90 % 1 % VIN = 5V, ISINK = 10mA 0.05 0.1 V VIN = 1.8V, ISINK = 10mA 0.12 0.2 V 1 µA 2 µA VIN = VON = 5V Reverse Block VON = 0V, VOUT = 5.5V, VIN = short to GND VOUT Shutdown Current -2 Protections Current Limit ILIM Thermal Shutdown VIN = 3.3V, VOUT = 3.0V FPF2140, FPF2142, FPF2143 200 300 400 FPF2144, FPF2146, FPF2147 400 600 800 mA Shutdown Threshold TJ increasing 140 Return from Shutdown 130 Hysteresis Under Voltage Lockout VUVLO °C 10 VIN Increasing 1.55 Under Voltage Lockout Hysteresis 1.65 1.75 V 50 mV Dynamic Turn on time tDR RL = 500Ω, CL = 0.1µF 25 µs Turn off time tDF RL = 500Ω, CL = 0.1µF 45 µs VOUT Rise Time tR RL = 500Ω, CL = 0.1µF 10 µs VOUT Fall Time tF RL = 500Ω, CL = 0.1µF 110 µs Over Current Blanking Time tBLANK FPF2140, FPF2142, FPF2144, FPF2146 15 30 60 ms Auto-Restart Time tRSTRT FPF2140, FPF2144 225 450 900 ms Short Circuit Response Time VIN = VON = 3.3V. Moderate Over-Current Condition 5 µs VIN = VON = 3.3V. Hard Short 30 ns Note 1: Package power dissipation on 1 square inch pad, 2 oz. copper board. FPF2140/42/43/44/46/47 Rev. D 4 www.fairchildsemi.com FPF2140/42/43/44/46/47 Full Function Load Switch with Reverse Current Blocking Electrical Characteristics Cont. 110 90 105 100 SUPPLY CURRENT (uA) SUPPLY CURRENT (uA) 85 80 75 70 65 95 90 VIN = 5.5V 85 80 VIN = 3.3V 75 70 VIN = 1.8V 65 60 55 60 50 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 -40 -15 SUPPLY VOLTAGE (V) Figure 1. Quiescent Current vs. Input Voltage 1.3 1.2 1.2 1.1 1.1 1 0.9 0.8 60 85 1 0.9 0.8 0.7 0.6 0.7 0.5 0.6 1.5 2 2.5 3 3.5 4 4.5 5 5.5 1.5 6 2 2.5 3 3.5 4 4.5 5 5.5 6 SUPPLY VOLTAGE (V) SUPPLY VOLTAGE (V) Figure 4. VON Low Voltage vs. Input Voltage Figure 3. VON High Voltage vs. Input Voltage 240 200 190 220 180 200 R(ON) (mOhms) 170 R(ON) (mOhms) 35 Figure 2. Quiescent Current vs. Temperature VON LOW VOLTAGE (V) VON HIGH VOLTAGE (V) 10 TJ, JUNCTION TEMPERATURE (°C) 160 150 140 130 120 160 140 VIN = 3.3V 120 110 100 100 80 90 VIN = 1.8V 180 VIN = 5.5V 60 80 1 2 3 4 5 -40 6 Figure 5. R(ON) vs. VIN FPF2140/42/43/44/46/47 Rev. D -15 10 35 60 85 TJ, JUNCTION TEMPERATURE (°C) VIN, SUPPLY VOLTAGE (V) Figure 6. R(ON) vs. Temperature 5 www.fairchildsemi.com FPF2140/42/43/44/46/47 Full Function Load Switch with Reverse Current Blocking Typical Characteristics 700 350 FPF2140 / 42 / 43 VIN = 5.5V FPF2144 / 46 / 47 VIN = 5.5V 600 OUTPUT CURRENT (mA) OUTPUT CURRENT (mA) 300 250 200 150 100 500 400 300 200 100 50 0 0 0 1 2 3 VIN - VOUT (V) 4 5 0 6 1 2 3 4 Figure 7. Current Limit vs. Output Voltage 6 Figure 8. Current 320 635 FPF2140 / 42 / 43 630 315 FPF2144 / 46 / 47 625 CURRENT LIMIT (mA) CURRENT LIMIT (mA) 5 VIN - VOUT (V) 310 305 300 295 620 615 610 605 600 595 590 585 580 290 -65 -40 -15 10 35 60 85 110 575 135 -65 TJ, JUNCTION TEMPERATURE (°C) 35 60 85 110 135 1000 VIN = 3.3 V RL = 500 Ohms COUT = 0.1uF VIN = 3.3 V RL = 500 Ohms TURN-ON/OFF TIMES (uS) TURN-ON/OFF TIMES (uS) 10 Figure 10. Current Limit vs. Temperature TDF TDR 10 -40 -15 TJ, JUNCTION TEMPERATURE (°C) Figure 9. Current Limit vs. Temperature 100 -40 TF 100 TR 10 1 -15 10 35 TJ, JUNCTION TEMPERATURE (°C) 60 -40 85 10 35 60 85 TJ, JUNCTION TEMPERATURE (°C) Figure 11. TDR / TDF vs. Temperature FPF2140/42/43/44/46/47 Rev. D -15 Figure 12. TRISE / TFALL vs. Temperature 6 www.fairchildsemi.com FPF2140/42/43/44/46/47 Full Function Load Switch with Reverse Current Blocking Typical Characteristics 33 500 495 32.5 RESTART TIME (mS) BLANK TIME (mS) 490 32 31.5 31 30.5 485 480 475 470 465 460 30 455 450 29.5 -40 -15 10 35 TJ, JUNCTION TEMPERATURE (°C) 60 -40 85 -15 Figure 13. TBLANK vs. Temperature 35 60 85 Figure 14. TRESTART vs. Temperature CIN = 10µF COUT = 0.1µF RL = 500Ω VIN = 3.3V VON 2V/DIV 10 TJ, JUNCTION TEMPERATURE (°C) CIN = 10µF COUT = 0.1µF RL = 500Ω VIN = 3.3V VON 2V/DIV IOUT 10mA/DIV IOUT 10mA/DIV VOUT 2V/DIV 100µs/DIV 500ns/DIV Figure 15. TDR Response Figure 16. TDF Response VIN 2V/DIV VIN = VON 2V/DIV CIN = 10µF VIN = 3.3V IOUT 5A/DIV IOUT 500mA/DIV VOUT 2V/DIV CIN = 10µF VIN = VON = 3.3V VOUT = GND 20µs/DIV 50µs/DIV Figure 17. Short Circuit Response Time (Output shorted to GND) FPF2140/42/43/44/46/47 Rev. D Figure 18. Current Limit Response Time (Switch is powered into a short) 7 www.fairchildsemi.com FPF2140/42/43/44/46/47 Full Function Load Switch with Reverse Current Blocking Typical Characteristics VIN 2V/DIV VIN 2V/DIV VON 2V/DIV VON 2V/DIV CIN = 10µF COUT = 0.1µF VIN = 3.3V IOUT 500mA/DIV IOUT 500mA/DIV VOUT 2V/DIV VOUT 2V/DIV 50µs/DIV 50µs/DIV Figure 20. Current Limit Response Time (Output is loaded by 2.2Ω, COUT = 10µF) Figure 19. Current Limit Response Time (Output is loaded by 2.2Ω, COUT = 0.1µF) VIN 5V/DIV FPF2140/42/44/46 VDRV2 2V/DIV CIN = 10µF COUT = 0.1µF RL = 500Ω VIN = 5.5V VON 5V/DIV CIN = 10µF COUT = 10µF VIN = 3.3V VON 2V/DIV TBLANK IOUT 500mA/DIV VOUT 5V/DIV CIN = 10µF COUT = 0.1µF RL = 500Ω VIN = 3.3V VOUT 2V/DIV PGOOD 5V/DIV 20ms/DIV 10µs/DIV Figure 22. TBLANK Response Figure 21. PGOOD Response VDRV2 2V/DIV FPF2140/44 TRESTART VON 2V/DIV IOUT 500mA/DIV CIN = 10µF COUT = 0.1µF RL = 500Ω VIN = 3.3V VOUT 2V/DIV 100ms/DIV Figure 23. TRESTART Response Note 2: VDRV signal forces the device to go into overcurrent condition by loading. FPF2140/42/43/44/46/47 Rev. D 8 www.fairchildsemi.com FPF2140/42/43/44/46/47 Full Function Load Switch with Reverse Current Blocking Typical Characteristics For preventing the switch from large power dissipation during heavy load a short circuit detection feature is introduced. Short circuit condition is detected by observing the output voltage. The switch is put into short circuit current limiting mode if the switch is loaded with a heavy load. When the output voltage drops below VSCTH, short circuit detection threshold voltage, the current limit value re-conditioned and short circuit current limit value is decreased to 62.5% of the current limit value. This keeps the power dissipation of the part below a certain limit even at dead short conditions at 5.5V input voltage. The VSCTH value is set to be 1V. At around 1.1V of output voltage the switch is removed from short circuit current limiting mode and the current limit is set to the current limit value. The FPF2140/42/43/44/46/47 are current limited switches that protect systems and loads which can be damaged or disrupted by the application of high currents. The core of each device is a 0.12Ω P-channel MOSFET and a controller capable of functioning over a wide input operating range of 1.8-5.5V. The controller protects against system malfunctions through current limiting, undervoltage lockout and thermal shutdown. The current limit is preset for either 200mA or 400mA. On/Off Control The ON pin controls the state of the switch. Activating ON continuously holds the switch in the on state so long as there is no undervoltage on VIN or a junction temperature in excess of 140°C. ON is active HI and has a low threshold making it capable of interfacing with low voltage signals. In addition, excessive currents will cause the switch to turn off for FPF2140/ 42 and FPF2144/46. The FPF2140/44 have an Auto-Restart feature which will automatically turn the switch on again after 450ms. For the FPF2142/46, the ON pin must be toggled to turn-on the switch again. With no auto-restart, the FPF2143/47 do not turn off in response to a over current condition but instead remain operating in a constant current mode so long as ON is active and the thermal shutdown or undervoltage lockout have not activated. Undervoltage Lockout The undervoltage lockout turns-off the switch if the input voltage drops below the undervoltage lockout threshold. With the ON pin active the input voltage rising above the undervoltage lockout threshold will cause a controlled turn-on of the switch which limits current over-shoots. Reverse Current Blocking The entire FPF2140/47 family has a Reverse Current Blocking feature that protects input source against current flow from output to input. For a standard USB power design, this is an important feature which protects the USB host from being damaged due to reverse current flow on VBUS. The reverse current blocking feature is active when the load switch is turned off. Fault Reporting Upon the detection of an over-current, an input undervoltage, or an over-temperature condition, the FLAGB signals the fault mode by activating LO. For the FPF2140/42/44/46, the FLAGB goes LO at the end of the blanking time while FLAGB goes LO immediately for the FPF2143/47. FLAGB remains LO through the Auto-Restart Time for the FPF2140/44. For the FPF2142/ 46, FLAGB is latched LO and ON must be toggled to release it. With the FPF2143/47, FLAGB is LO during the faults and immediately returns HI at the end of the fault condition. FLAGB is an open-drain MOSFET which requires a pull-up resistor between VIN and FLAGB. During shutdown, the pull-down on FLAGB is disabled to reduce current draw from the supply. If ON pin is LO and output voltage become greater than input voltage, no current can flow from the output to the input . The FLAGB operation is independent of the Reverse Current blocking feature and will not report a fault condition if this feature is activated. Thermal Shutdown The thermal shutdown protects the die from internally or externally generated excessive temperatures. During an over-temperature condition the FLAGB is activated and the switch is turned-off. The switch automatically turns-on again if temperature of the die drops below the threshold temperature. Current Limiting The current limit guarantees that the current through the switch doesn't exceed a maximum value while not limiting at less than a minimum value. For the FPF2140/42/43 the minimum current is 200mA and the maximum current is 400mA and for the FPF2144/46/47 the minimum current is 400mA and the maximum current is 800mA. The FPF2140/42/44/46 have a blanking time of 30ms, nominally, during which the switch will act as a constant current source. At the end of the blanking time, the switch will be turned-off and the FLAGB pin will activate to indicate that current limiting has occurred. The FPF2143/47 have no current limit blanking period so immediately upon a current limit condition FLAGB is activated. These parts will remain in a constant current state until the ON pin is deactivated or the thermal shutdown turns-off the switch. FPF2140/42/43/44/46/47 Rev. D 9 www.fairchildsemi.com FPF2140/42/43/44/46/47 Full Function Load Switch with Reverse Current Blocking Description of Operation Typical Application FPF2140/2/3/4/6/7 Typical value = 100KΩ Battery 1.8V-5.5V OFF ON LOAD VOUT VIN PGOOD ON R1 = 100KΩ FLAGB GND R2 = 499Ω C2 = 0.1µF C1 = 0.1µF Input Capacitor To limit the voltage drop on the input supply caused by transient in-rush currents when the switch turns-on into a discharged load capacitor or a short-circuit, a capacitor needs to be placed between VIN and GND. A 0.1µF ceramic capacitor, CIN, placed close to the pins is usually sufficient. Higher values of CIN can be used to further reduce the voltage drop. When using the FPF2142/46 attention must be given to the manual resetting of the part. The junction temperature will only be allowed to increase to the thermal shutdown threshold. Once this temperature has been reached, toggling ON will not turn-on the switch until the junction temperature drops. For the FPF2140/44, a short on the output will cause the part to operate in a constant current state dissipating a worst case power as calculated in (3) until the thermal shutdown activates. It will then cycle in and out of thermal shutdown so long as the ON pin is active and the short is present. Output Capacitor A 0.1uF capacitor COUT, should be placed between VOUT and GND. This capacitor will prevent parasitic board inductances from forcing VOUT below GND when the switch turns-off. For the FPF2140/42/44/46, the total output capacitance needs to be kept below a maximum value, COUT(max), to prevent the part from registering an over-current condition and turning-off the switch. The maximum output capacitance can be determined from the following formula, COUT(max) = ILIM(max) x tBLANK(min) VIN Board Layout For best performance, all traces should be as short as possible. To be most effective, the input and output capacitors should be placed close to the device to minimize the effects that parasitic trace inductances may have on normal and short-circuit operation. Using wide traces for VIN, VOUT and GND will help minimize parasitic electrical effects along with minimizing the case to ambient thermal impedance. (1) The middle pad (pin 7) should be connected to the GND plate of PCB for improving thermal performance of the load switch. An improper layout could result higher junction temperature and triggering the thermal shutdown protection feature. This concern applies specially with FPF2143 and FPF2147 where load switch turns on into an overcurrent condition and switch supplies constant current limit value. In this case power dissipation of the switch (PD = (VIN - VOUT) x ILIM(max)) could exceed the maximum absolute power dissipation of 1.2W. Power Dissipation During normal operation as a switch, the power dissipation is small and has little effect on the operating temperature of the part. The parts with the higher current limits will dissipate the most power and that will only be, P = (ILIM)2 x RDS = (0.8)2 x 0.12 = 76.8mW (2) If the part goes into current limit the maximum power dissipation will occur when the output is shorted to ground. For the FPF2140/44, the power dissipation will scale by the Auto-Restart Time, tRSTRT, and the Over Current Blanking Time, tBLANK, so that the maximum power dissipated is, P(max) = = tBLANK x VIN(max) x ILIM(max) tBLANK + tRSTRT 30 x 5.5 x 0.8 = 275mW 30 + 450 FPF2140/42/43/44/46/47 Rev. D (3) 10 www.fairchildsemi.com FPF2140/42/43/44/46/47 Full Function Load Switch with Reverse Current Blocking Application Information Startup Power Sequence VIN1 PGOOD VIN1 FPF2140/2/ VOUT1 3/4/6/7 To Load FLAGB OFF ON ON GND 100KΩ VIN2 PGOOD VIN2 FPF2140/2/ VOUT2 3/4/6/7 To Load FLAGB ON GND 100KΩ TP Power good function in sequential startup. No battery is loaded to the output Power Good Sequential Startup using Power Good FPF214X family has a "Power Good" feature. PGOOD pin is an open-drain MOSFET which asserts high when the output voltage reaches 90% of the input voltage. The power good pin can be connected to another load switch's enable pin to implement sequential startup. PGOOD pin asserts low when the load switch is OFF. This feature allows driving a subsequent circuit. The above diagram illustrates power good function in sequential startup. As the VOUT1 of the first load switch starts to ramp to the 90% of its input voltage the second switch remains in OFF state. Whereas the VOUT1 passes the 90% threshold, power good signal becomes active and asserts high. This signal will turn on the second load switch and VOUT2 will start to increase. The total startup time may vary according to the difference between supply voltages that are used in the application. PGOOD pin requires an external pull up resistor that is connected to the output voltage when there is no battery in the load side and the logic level of the subsequent controller permits. This would give logic levels similar to a CMOS output stage for PGOOD, while still keeping the option to tie the pull-up to a different supply voltage. A typical value of 100KΩ is recommended to be used as pull up resistor. The PGOOD pin status is independent of the ON pin position. This mean that PGOOD pin stays low when the load switch is OFF. If the Power Good feature is not used in the application the pin can be connected directly to GND. FPF2140/42/43/44/46/47 Rev. D 11 www.fairchildsemi.com FPF2140/42/43/44/46/47 Full Function Load Switch with Reverse Current Blocking Application Notes FPF2140/42/43/44/46/47 Full Function Load Switch with Reverse Current Blocking Dimensional Outline and Pad Layout FPF2140/42/43/44/46/47 Rev. D 12 www.fairchildsemi.com The following are registered and unregistered trademarks and service marks Fairchild Semiconductor owns or is authorized to use and is not intended to be an exhaustive list of all such trademarks. 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FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. THESE SPECIFICATIONS DO NOT EXPAND THE TERMS OF FAIRCHILD’S WORLDWIDE TERMS AND CONDITIONS, SPECIFICALLY THE WARRANTY THEREIN, WHICH COVERS THESE PRODUCTS. LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. 2. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. PRODUCT STATUS DEFINITIONS Definition of Terms Datasheet Identification Product Status Definition Advance Information Formative or In Design This datasheet contains the design specifications for product development. Specifications may change in any manner without notice. Preliminary First Production This datasheet contains preliminary data; supplementary data will be published at a later date. Fairchild Semiconductor reserves the right to make changes at any time without notice to improve design. No Identification Needed Full Production This datasheet contains final specifications. Fairchild Semiconductor reserves the right to make changes at any time without notice to improve design. Obsolete Not In Production This datasheet contains specifications on a product that has been discontinued by Fairchild semiconductor. The datasheet is printed for reference information only. Rev. I31 FPF2140/42/43/44/46/47 Rev. D 13 www.fairchildsemi.com FPF2140/42/43/44/46/47 Full Function Load Switch with Reverse Current Blocking TRADEMARKS