PJ3842BCS(2002) 데이터 시트보기 (PDF) - Promax Johnton
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PJ3842BCS Datasheet PDF : 15 Pages
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PJ3842B
High Performance Current Mode Controller
FIGURE 26-CURRENT WAVEFORM SPIKE
SUPPRESSION
FIGURE 27-MOSFET PARASITIC OSCILLATIONS
The addition of RC filter will eliminate instability caused
by the leading edge splik on the current waveform.
FIGURE 28-BIPOLAR TRANSISTOR DRIVE
FIGURE 29-ISOLATED MOSFET DRIVE
The totem-pole output can furnish negative base current for
enhanced transistor turn-off,with the additions of capacitor C1.
FIGURE 30-LATCHED SHUTDOWN
FIGURE 31-ERROR AMPLIFIER COMPENSATION
Error Amp compensation circuit for stabilizing any currentmode topology
except for boost and fly back converters operating with continuous inductor
current.
The MCR101 SCR m ust be selected for a holding of less than 0.5m A at TA
(min).The simple two transistor circuit can be used in place of the SCR as
shown.All resistors are 10K.
Error Amp compensation circuit for stabilizing any currentmode topology
except for boost and fly back converters operating with continuous inductor
current.
10-15
2002/01.ver.A
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