NCP4303AMNTWG ON Semiconductor, NCP4303AMNTWG Datasheet - Page 18

• Manufacturer Part Number: NCP4303AMNTWG
• Description: Power Switch ICs - Power Distribution SEC SIDE SYNC RECT DRV
• Manufacturer: ON Semiconductor

Specifications of NCP4303AMNTWG

• Product Category: Power Switch ICs - Power Distribution

trigger/disable input. If the trigger/disable input is pulled up
(above 1.5 V) the driver is disabled immediately. In some
cases, the driver is activated one more time by the current
sense because the trigger signal is still blanked. This final
drive pulse lasts only for the minimum on time period. If the
trigger signal is high for more than 100 ms, the driver enters
standby mode. Note that a short pulse (2 ms maximally) can
appear on the DRV pin during transition to sleep mode in
case there was no switching on the CS input prior transition
− refer to Figure 44. This behavior is related to the internal
The NCP4303 operation can be disabled using the
Figure 42. Operating Waveforms for the Trig/Disable Input – Device Sleep Mode Transition – Case 1
Figure 41. Trigger Input Functionality Waveforms
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IC logic structure and may cause unwanted SR MOSFET
activation in some applications. It is recommended to
disable NCP4303 driver via V
Figure 61. The IC consumption is reduced to 390 mA during
the standby mode. When trigger input voltage is decreased
again the device recovers operation in 500 ns. If the IC is
enabled in the time the current sense input voltage is
negative (secondary current flows through the Shottky or
body diode) the IC waits for another switching cycle to
turn−on the SR MOSFET – refer to Figures 42, 43 44,
and 45.
CC
pin in such cases − refer to