FPF2225 Fairchild Semiconductor, FPF2225 Datasheet
FPF2225
Specifications of FPF2225
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FPF2225 Summary of contents
Page 1
... For the FPF2223 through FPF2225, the current limit is set by an external resistor and the minimum current limit is 250mA. ...
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... Typical Application Circuit OFF ON Functional Block Diagram V IN UVLO THERMAL SHUTDOWN ON FPF2223-FPF2225 Rev. C FPF2223/4 OUT IN FLAGB ON I SET GND CONTROL LOGIC CURRENT LIMIT Output Discharge GND 2 TO LOAD V OUT I SET FLAGB www.fairchildsemi.com ...
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... Recommended Operating Range Parameter V IN Ambient Operating Temperature Electrical Characteristics V = 1.8 to 5.5V -40 to +85°C unless otherwise noted. Typical values are Parameter Basic Operation Operating Voltage Quiescent Current V Shutdown Current IN FPF2223-FPF2225 Rev SET GND FLAGB OUT MicroFET 2x2 6L (BOTTOMVIEW) Function Current Limit Set Input : A resistor from I ...
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... Under Voltage Shutdown Under Voltage Shutdown Hysteresis Dynamic Turn On Time Turn Off Time V Rise Time OUT V Fall Time OUT Over Current Blanking Time Auto-Restart Time Current Limit Response Time FPF2223-FPF2225 Rev. C Symbol Conditions V =0V, V =5.5V, V =short to GND ON OUT IN V =5.5V, I =200mA, T =25°C ...
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... V IH 1.0 0.8 0.6 0.4 0 SUPPLY VOLTAGE (V) IN Figure 3. V vs. Input Voltage ON 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 -40 - JUNCTION TEMPERATURE ( J Figure 5. V Low Voltage vs. Temperature ON FPF2223-FPF2225 Rev - Figure 2. Quiescent Current vs. Temperature 1.6 1.4 1 0.8 0.6 0.4 0 -40 Figure ...
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... V , SUPPLY VOLTAGE(V) IN Figure 9. R vs. Input Voltage ON 1000 100 10 1 0.1 -40 - JUNCTION TEMPERATURE ( J Figure 11 vs. Temperature OFF ON FPF2223-FPF2225 Rev. C 700 R 690 680 670 660 650 640 630 620 -40 340 300 260 220 180 140 o -40 C 100 ...
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... FLAGB RESTART 2V/DIV V OUT 2V/DIV 100ms/DIV Figure 17. T RESTART Note1: V signal drives the gate of a NMOS transistor. The NMOS transistor is in series with a 5 DRV output of device. By turning on the transistor, the 5 condition. FPF2223-FPF2225 Rev RESTART 2V/DIV I OUT 10mA/DIV T BLANK V ON 2V/DIV ...
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... Figure 19. Current Limit Response (Output is loaded with 1.2 resistor and IN= ON 2V/DIV I OUT 500mA/DIV V OUT 2V/DIV 50 s/DIV Figure 21. Current Limit Response (Switch is powered into a short - Input and enable pin are tied together) FPF2223-FPF2225 Rev =5V, C =10uF =100uF, OUT 2V/DIV R =1 =36K SET ...
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... FLAGB remains LO through the Auto-Restart Time for the FPF2223 while for the FPF2224, FLAGB is latched LO and ON must be toggled to release it. With the FPF2225, 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 ...
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... Application Information Setting Current Limit The FPF2223, FPF2224, and FPF2225 have adjustable high precision current limit which is set with an external resistor connected between ISET and GND. Please see the layout recommendation section of the application note for the recommended R layout. The R SET ...
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... Once this temperature has been reached, toggling ON will not turn-on the switch until the junction temperature drops. For the FPF2225, a short on the output will cause the part to operate in a constant current state dissipating a worst case power of: ...
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... Load current can be scoped by removing the R4 resistor and soldering a current loop to the R4 footprint. Thermal performance of the board is improved using a few techniques recommended in the layout recommendations section of datasheet. Figure 28: Top, SST, and AST Layers Figure 29: Bottom and ASB Layers FPF2223-FPF2225 Rev. C Figure 30: Zoom in to Top layer 12 www.fairchildsemi.com ...
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... Dimensional Outline and Pad Layout FPF2223-FPF2225 Rev www.fairchildsemi.com ...
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... PRODUCT STATUS DEFINITIONS Definition of Terms Datasheet Identification Product Status Advance Information Formative or In Design Preliminary First Production No Identification Needed Full Production Obsolete Not In Production FPF2223-FPF2225 Rev. C FPS™ PDP-SPM™ ® ® FRFET Power220 Global Power Resource SM POWEREDGE Green FPS™ Power-SPM™ ...