NCP4303B ON Semiconductor, NCP4303B Datasheet - Page 19

• Manufacturer Part Number: NCP4303B
• Description: Secondary Side Synchronous Rectification Driver
• Manufacturer: ON Semiconductor

pulse overlaps the SR MOSFET drain positive voltage (i.e.
overlaps the whole SR MOSFET body diode off time
feature any internal filtering and reacts even on very narrow
If the trigger signal comes periodically and the trigger
Figure 45. Operating Waveforms for the Trig/Disable Input with a Trigger Signal that is Periodical and Overlaps
Note that the trigger input is an ultrafast input that doesn’t
Figure 43. Operating Waveforms for the Trig/Disable Input – Device Sleep Mode Transition – Case 2
Figure 44. Operating Waveforms for the Trig/Disable Input –Wake−up from Sleep Mode
CS (SR MOSFET Vds) High Level
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NCP4303A/B
19
period), the driver is disabled for the next cycle – refer to
Figure 45.
voltage pulses. Thus it is wise to keep this input on a low
impedance path and provide it with a clean triggering signal.
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