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NCP4303A Datasheet(PDF) 6 Page - ON Semiconductor

Part # NCP4303A
Description  Secondary Side Synchronous Rectification Driver for High Efficiency SMPS Topologies
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Manufacturer  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

NCP4303A Datasheet(HTML) 6 Page - ON Semiconductor

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NCP4303A/B
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ELECTRICAL CHARACTERISTICS (For typical values TJ = 25°C, for min/max values TJ = −40°C to +125°C, Max TJ = 150°C, VCC
= 12 V, Cload = 0 nF, R_min_ton = R_min_toff = 10 kW, Vtrig = 0 V, f_CS = 100 kHz, DC_CS = 50%, VCS_high = 4 V, VCS_low=−1 V unless
otherwise noted)
Symbol
Unit
Max
Typ
Min
Pin
Rating
CS INPUT
ICS_Leakage
CS input leakage current, VCS = 200 Vdc
5
1
mA
TRIGGER/DISABLE INPUT
Ttrig_pw
Minimum trigger pulse duration
4
30
ns
Vtrig
Trigger input threshold voltage (Vtrig goes up)
4
1.5
2.5
V
tp_trig
Propagation delay from trigger input to the DRV output (Vtrig goes up from 0
to 5 V tr_trig = 5 ns)
4
30
ns
ttrig_light_load
Light load turn off filter duration
4
100
ms
ttrig_light_load_rec IC operation recovery time when leaving light load disable mode (Vtrig goes
down from 5 to 0 V tf_trig = 5 ns)
4
550
ns
Itrig
Trigger input pull down current (Vtrig = 5 V)
4
10
uA
MINIMUM Ton AND Toff ADJUST
Ton_min
Minimum Ton period (RT_on_min = 0 W)
3
300
ns
Toff_min
Minimum Toff period (RT_off_min = 0 W)
2
620
ns
Ton_min
Minimum Ton period (RT_on_min = 10 kW)
3
0.9
1.0
1.1
ms
Toff_min
Minimum Toff period (RT_off_min = 10 kW)
2
0.9
1.0
1.1
ms
Ton_min
Minimum Ton period (RT_on_min = 50 kW)
3
4.8
ms
Toff_min
Minimum Toff period (RT_off_min = 50 kW)
2
4.8
ms
3. Guaranteed by design.


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