PJ3842BCD(2002) 데이터 시트보기 (PDF) - Promax Johnton
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PJ3842BCD Datasheet PDF : 15 Pages
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PJ3842B
High Performance Current Mode Controller
FIGURE 32-SLOPE COM PENSATION
The buffered oscillator ramp can resistively summed with either the voltage
feedback or current sense inputs to provide slope compensation.
FIGURE 33-27 W ATT OFF-LINE REGULATION
T1-Primary:45 Turns #26 AWG
Secondary ±12V :9 Turns #30 AWG (2 strands ) Bifiliar Wound
Secondary 5.0V: 4Turns (six strands) #26 Hexfiliar Wound
Secondary Feedback : 10 Turns #30 AWG (2 strands) Bifiliar Wound
Core: Ferroxcube EC35-3C8
Bobbin : Ferroxcube EC35PCB1
Gap :≌ 0.10” for a primary inductance of 1.0mH
L1-15μH at 5.0A, Coilcraft 27156.
L2.L3-25μH at 1.0A, Coilcraft 27157.
Line Regulation:5.0V
Vin=95 to 130 Vac
±12V
Load Regulation: 5.0V
Vin=115Vac, Iout =1.0A to 4.0A
±12V
Vin=115Vac,Iout=100mA to 300mA
Output Ripple: 5.0V
Vin=115Vac
±12V
Efficiency
Vin=115Vac
All outputs are at nominal load currents unless otherwise noted.
=50mV or ±0.5%
=24mV or ±0.1%
=300mV or ±3.0%
=60mV or ±0.25%
40mVp-p
80 Vp-p
70%
11-15
2002/01.ver.A
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