Hypex Electronics UCD102, Электрические схемы и документация

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R3 5
5.1 DC-Error Detection Characteristics
The UcD102 has an integrated DC-error detection which will pull pin 28 low in case of such an event.
It is recommended to sense this fault condition and to interrupt both power supply lines in such an
event.
Item Type Min Typ Max Unit Notes
Voltage on pin 28, DC-
error Output 1 V Internal open collector
1)
Note 1: Must be pulled to a positive voltage by means of an external resistor. Open collector
maximum output current: 100mA. Maximum collector voltage: 65V.
Figure 2. DC-Error Output interface.
5.2 Amplifier On/OFF Characteristics
Pulling pin 27 low enables the amplifier. Leaving pin 27 floating will put the amplifier in standby. This
pin may be driven from a logical output or an open collector.
Item Min Typ Max Unit Notes
Voltage on pin 27, left floating 3 V Internally pulled up
Pull-up current 20 40 uA
Threshold voltage 1.8 2.2 2.7 V
Permissible voltage range -5 - 75 V
Figure 3. Amplifier On/Off Control interface.