Hypex Electronics UCD102, Электрические схемы и документация

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R3 6
5.3 Input buffer recommendation
The UcD102 has no on-board input buffer. Applications that require a higher gain and/or a higher
input impedance benefit from a buffer stage like shown below.
Figure
4. Recommended Input
buffer stage.
5.4 Amplifier start-up delay
During initial power up the amplifier is disabled for approx. 1.5s regardless of the state of pin 27. Once
powered up there is no start or stop delay.
5.5 External Driver Voltage Connection
An internal linear VDR regulator is available. In order to minimize dissipation in multi-channel
applications an external voltage source can be connected. The VDR reference must be connected to
the negative supply rails(!). Driver current is independent of driver voltage, regulator losses increase
linear with applied voltage. If no external VDR is available the input should be connected to GND in
order for the UcD102 to operate.
Item Min Typ Max Unit Notes
External driver voltage 13 - GND V
1)
Driver current amp muted - 8 mA
Driver current - 85 mA
Note 1: This voltage is in respect to the negative supply rails, if no external driver voltage is available,
connect to GND