diode drop

diode drop

[′dī‚ōd ‚dräp]
(electronics)
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Integrated device protects four high-speed signal I/O and one power line -- Optimized for video/data interface protocols with signals from 100MHz to more than 1GHz, such as DVI, USB, S-Video, and analog SVGA/VGA -- Low capacitance (5pF max, 3pF typ) and leakage current (5uA max) preserves high-speed signal integrity -- Very low clamping voltage -- one diode drop above the supplied reference voltage -- ESD protection to IEC 61000-4-2, Level 4 (8kV contact, 15kV air) and protection from cable discharge events -- Space-saving, surface-mount JEDEC SOT-23 6L package optimized for portable applications
Immediately after turnoff, the flyback current forces the common-mode voltage on the high side shunt to a diode drop below ground, approximately -0.
The maximum clamping voltage seen by protected circuitry during a transient event is held to one diode drop above the SR70's reference voltage input, which is typically connected to the protected device's supply voltage.
The RDHA702FT10A2FK datasheet states that the internal LED diode drop is a nominal 2.
The logic inputs (IN) are protected for positive faults up to (V-)+12V; however, negative faults can exceed the negative supply by only a diode drop.
Low voltage applications benefit from the extra margin afforded by saving the two diode drops inherent in diode bridges.
During the time td the current flowing through the diode drops to the value of 0.