FAN7687AMX Fairchild Semiconductor, FAN7687AMX Datasheet
FAN7687AMX
Specifications of FAN7687AMX
Related parts for FAN7687AMX
FAN7687AMX Summary of contents
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... PSON to FPO Turn Off Delay • Latch Function Controlled by PSON Typical Application • PC Switching Mode Power Supply ©2004 Fairchild Semiconductor Corporation Description The FAN7685/FAN7686/FAN7687 is a complete output supervisory circuitry intended for use in the secondary side of the switched mode power supply. It provides overvoltage ...
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FAN7685/FAN7686/FAN7687 Internal Block Diagrams Vcc Vcc 13 Start-up VS12 10 (9) VS5 12 VS33 11 Vref IS33 9 (8) IS5 8 (7) IS12 5 Vcc 8*Iref 8*Iref 8*Iref 6 RI Vcc VCC12 13 Start-up UVP Block VS12 10 VS5 12 ...
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Pin Assignments PGI 1 14 GND 2 13 FPO 3 12 PSON 4 11 IS12 Pin Definitions Pin Number Pin Name 1 PGI 2 GND 3 FPO 4 PSON 5 IS12 6 ...
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FAN7685/FAN7686/FAN7687 Absolute Maximum Ratings Parameter Supply Voltage Input Voltage Output Voltage Operating Temperature Storage Temperature Power Dissipation *Note : Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. Recommended Operating Conditions Characteristic Supply Voltage ...
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Electrical Characteristics Over Voltage Protection, Under Voltage Protection and FPO Parameter Over Voltage Threshold Under Voltage Threshold Ratio of Current Sense Sink Current to Current Sense Setting Pin(RI) Source Current Offset Voltage of OCP Comparator Leakage Current(FPO) Low Level Output ...
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FAN7685/FAN7686/FAN7687 Timing Chart 1) AC Input ON/OFF - Normal State V CC POR PSON FPO PGI OUT PGO 2) PSON ON/OFF - Normal State PSON FPO PGI OUT PGO 6 AC Input Enable t b1 UVP Threshold ...
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Under Voltage at Normal State PSON FPO PGI OUT PGO 4) Under Voltage at AC Input POR PSON FPO PGI OUT PGO Latch UVP Threshold AC Input Enable Latch ...
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FAN7685/FAN7686/FAN7687 5) Under Voltage at PSON ON/OFF PSON t FPO d3 PGI OUT PGO 6) Over Voltage at PSON ON/OFF PSON FPO PGI OUT PGO 8 Latch PGI Threshold b2 Latch ...
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Typical Application Circuits FAN7685 Application Circuit PWM 5Vsb PSON FAN7687 Application Circuit PWM 5Vsb PSON IS12 R R S_12V IS12 IS12 5V Coil R R S_5V IS5 IS5 3.3V Coil R R S_3.3V IS33 IS33 PGO 1 14 PGI PGO ...
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FAN7685/FAN7686/FAN7687 Application Information Power Good(PGO) and Power Good Delay A PC power supply is commonly designed to provide the motherboard with a power good signal, which is defined by the com- puter manufacturers. If the +3.3V, +5V, and +12V outputs ...
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The FPO pin can be connected to +5V( +15V) through a pull-up resistor. Under Voltage Protection The FAN7685/FAN7686/FAN7687 provide undervoltage protection(UVP) for the +3.3V, +5V, and +12V power rails. When an undervoltage ...
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FAN7685/FAN7686/FAN7687 Mechanical Dimensions Package 12 Dimensions in millimeters/inches 14-DIP ...
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Mechanical Dimensions Package Dimensions in millimeters/inches 14-SOP FAN7685/FAN7686/FAN7687 13 ...
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... FAN7687M FAN7687AM FAN7685MX FAN7686MX FAN7687MX FAN7687AMX DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. 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 ...