FAN7680M ,PC Power Supply Outputs Monitoring ICFeatures Description PC Power Supply Output Monitor Circuitry The FAN7680 is a complete output sup ..
FAN7680N ,SECONDARY SUPERVISORY ICFeatures Description PC Power Supply Output Monitor Circuitry The FAN7680 is a complete output sup ..
FAN7680N ,SECONDARY SUPERVISORY ICFAN7680PC Power Supply Outputs Monitoring IC
FAN7685 ,PC Power Supply Output Monitoring ICfeatures are also implemented.It directly senses all the output rails for OVP, UVP, and OCP Open ..
FAN7685 ,PC Power Supply Output Monitoring ICFeatures Description PC Power Supply Outputs Supervisory Circuitry The FAN7685/FAN7686/FAN7687 is ..
FAN7685 ,PC Power Supply Output Monitoring ICfeatures are also implemented.It directly senses all the output rails for OVP, UVP, and OCP Open ..
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FAN7680M
PC Power Supply Outputs Monitoring IC
©2003
Features PC Power Supply Output Monitor Circuitry Few External Components Over V oltage Protection for 3.3V, 5V and 12V(Vcc)
Outputs Under Voltage Protection for 3.3V, 5V and 12V(Vcc)
Outputs with Delay Time Fault Protection Output with Open Drain Output Open Drain Power Good Output 300ms Power Good Delay 38ms PSON On/Off Debounce 73us Debounce
2.3ms PSON to FPO Turn Off Delay Latch Function Controlled by PSON and Protection
Inputs
Typical Application PC Power Supply
OVPThe FAN7680 has OVP functions for +3.3V, +5V,
+12V(Vcc) outputs. This block is made up of three compara-
tors with two inputs and resistor dividers. One input of a
comparator is connected to a reference voltage and another
input is connected to a resistor divider.
UVPThe FAN7680 also has UVP functions for +3.3V , +5V,
+12V(Vcc) outputs. This block is made up of three compara-
tors with two inputs and resistor dividers. One input of a
comparator is connected to a reference voltage and another
input is connected to a resistor divider.
PSONThe remote on/off(PSON) section is for controlling the
SMPS externally. When a high signal is applied to the PSON
input, the FPO signal becomes a high state and all secondary
outputs are grounded. The remote on/off signal is transferred
with some on/off debounce time.
