FPF2027 Fairchild Semiconductor, FPF2027 Datasheet
FPF2027
Specifications of FPF2027
Related parts for FPF2027
FPF2027 Summary of contents
Page 1
... Latch-Off feature which shuts off the switch off after the expiration of the 10ms Blanking Time and keeps it off until the ON pin is toggled. The FPF2027 responds to an overload condition by immediately pulling the fault signal pin low and the switch remains in constant current mode until the output overload condition is removed ...
Page 2
... PROTECTION FLAGB GND V IN UVLO ON THERMAL PROTECTION FLGAB GND ©2008 Fairchild Semiconductor Corporation FPF2024/5/6/7 Final OUT FPF2024, FPF2026, FPF2027 ON FLAGB OUT FPF2025 ON FLAGB FPF2024, FPF2026, FPF2027 CONTROL LOGIC CURRENT LIMIT FPF2025 CONTROL LOGIC CURRENT LIMIT 2 TO LOAD TO LOAD V OUT V OUT www.fairchildsemi.com ...
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... Maximum Continuous Switch Current Operating Temperature Range Storage Temperature Thermal Resistance, Junction to Ambient Electrostatic Discharge Protection Note1: Package power dissipation on 1square inch pad, 2 oz. copper board. Recommended Operating Range Parameter V IN Ambient Operating Temperature ©2008 Fairchild Semiconductor Corporation FPF2024/5/6/7 Final OUT GND ...
Page 4
... Sleep Mode Duration Wake-up Mode Duration Duty Cycle Current Limit Response Time Blanking/Auto-Restart Duty Ratio Note2: FPF2027 has a 10ms Startup FLAGB Blanking Time when the part is turned on via ON pin to ensure transient load currents settle down. ©2008 Fairchild Semiconductor Corporation FPF2024/5/6/7 Final. B Symbol ...
Page 5
... Temperature ( Figure 1. Shutdown Current vs.Temperature 1200 1100 1000 V 900 800 700 600 -50 -25 0 Temperature ( Figure 3. Quiescent Current vs. Temperature 350 300 250 200 150 Figure 5. R DS(ON) ©2008 Fairchild Semiconductor Corporation FPF2024/5/6/7 Final 100 - 10.4 10 1.8V IN 9.8 9.6 9.4 9 ...
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... V vs Temperature 2V/DIV V ON 2V/DIV I LOAD 10mA/DIV V OUT 2V/DIV 100us/DIV Figure 11. FPF2024 T Note3: V signal forces the device to go into overcurrent condition by loading a 7.5Ω. DRV ©2008 Fairchild Semiconductor Corporation FPF2024/5/6/7 Final. B 160 o -40 C 159 158 o - 157 o C 156 C 155 154 153 ...
Page 7
... IN C =10uF OUT R =5Ω L 50us/DIV Figure 14. FPF2024 Current Limit Response Time (Output is loaded by 5Ω and C = 10uF) OUT V =V =3. =10uF IN C =0.1uF OUT R =100Ω L 20us/DIV =10uF IN C =0.1uF OUT R =100Ω ms/DIV Figure 18.FPF2027 Over-Current www.fairchildsemi.com =3.3V =3.3V ...
Page 8
... Typical Characteristics V ON 2V/DIV FLAGB 2V/DIV I LOAD 100mA/DIV V OUT 2V/DIV 10 ms/DIV Figure 19. FPF2027 Startup FLAGB Blanking Time ©2008 Fairchild Semiconductor Corporation FPF2024/5/6/7 Final 2V/DIV V =3. =10uF IN C =10uF OUT FLAGB R =5Ω L 2V/DIV I LOAD 100mA/DIV V OUT 2V/DIV Figure 20. FPF2025 =3.3V IN Device is ON ...
Page 9
... Restart feature which will automatically turn the switch on again after 70ms. For the FPF2026, the ON pin must be toggled to turn the switch on again. The FPF2027 does not turn off in response to an over current condition, and remains in a constant current mode for so long as the ON pin is active, and the thermal shutdown or UVLO are not activated ...
Page 10
... The minimum current at which the parts will limit the load current is internally set to 100mA. The switch current limiting circuitry is active at all times(Sleep and Wakeup mode) and protects the FPF2024-FPF2027 against excessive load currents in all modes. The proprietary current limiting circuit responds to an over-current condition in 15 µ ...
Page 11
... I FAULT END 70ms AUTO- RESTART 70ms Figure 21. Representative State Diagram of FPF2024/5 ©2008 Fairchild Semiconductor Corporation FPF2024/5/6/7 Final. B Notes: All States return to OFF when ON is removed. Typical timing values are shown . Key: I=Load Switch current, V=Input Voltage, T= Die Temperature I FAULT ...
Page 12
... STARTUP & BLANKING (Full-feature for 10ms FAULT Figure 22. Representative State Diagram of FPF2026 ©2008 Fairchild Semiconductor Corporation FPF2024/5/6/7 Final. B Notes: All States return to OFF when ON is removed. Typical timing values are shown . Key: I=Load Switch current, V=Input Voltage, T=Die Temperature I FAULT SLEEP ...
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... Description of Operation cont. State Diagram for the part options with no Blanking (FPF2027 & ull-feature for 10m Figure 23. Representative State Diagram of FPF2027 ©2008 Fairchild Semiconductor Corporation FPF2024/5/6/7 Final. B Notes: All States return to OFF w hen ON is rem oved. T ypical tim ing values are show n . ...
Page 14
... Once this temperature has been reached, toggling ON will have no affect until the junction temperature drops below the thermal shutdown exit temperature. For the FPF2027, a short on the output will cause the part to operate in a constant current state dissipating a worst case power of: ...
Page 15
... Figure 25. Top Layer Figure 26. Bottom Layer Figure 27. SST ©2008 Fairchild Semiconductor Corporation FPF2024/5/6/7 Final. B Figure 28. TOP, SST and SMT 15 www.fairchildsemi.com ...
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... Dimensional Outline and Pad Layout Product FPF2024/5/6/7 1.500+/- 0.030 ©2008 Fairchild Semiconductor Corporation FPF2024/5/6/7 Final 1.000 +/-0.030 0.240 0.240 www.fairchildsemi.com ...
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... TRADEMARKS The following includes registered and unregistered trademarks and service marks, owned by Fairchild Semiconductor and/or its global subsidianries, and is not intended exhaustive list of all such trademarks. Build it Now™ CorePLUS™ CorePOWER™ CROSSVOLT™ CTL™ Current Transfer Logic™ ...