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NE5561 Datasheet(PDF) 4 Page - NXP Semiconductors |
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NE5561 Datasheet(HTML) 4 Page - NXP Semiconductors |
4 / 5 page Philips Semiconductors Product specification NE/SE5561 Switched-mode power supply control circuit 1994 Aug 31 4 TYPICAL PERFORMANCE CHARACTERISTICS C (nF) d max is a function of f R2 R1 ) R2 V Z ) V BEQ1 Error Amplifier Open-Loop Gain Error Amplifier Open-Loop Phase Transfer Curve of Pulse-Width Modulator Duty Cycle vs Input Voltage Power Derating Curve Typical Frequency Plot vs RT and CT Maximum Duty Cycle vs Base Voltage on Q1 Start-Up Circuit Slow-Start Voltage 100 90 80 70 60 50 40 30 20 10 0 0 1 2 3 4 5 V1 δ MAX (%) V4 t t = R’C 2 4 Q1 R2 V1 C R1 NE5561 VZ 2 5 NE5561 RT CT 1.25 1.00 0.75 0.50 0.25 0 25 50 70 100 125 150 NE SE AMBIENT TEMPERATURE ( °C) PT = VCC ICC + (VCC – VZ) IZ + [V7 I7 x DUTY CYCLE] 100 90 80 70 60 50 40 30 20 10 0 0 1 2 3 4 5 6 V4 1000 100 50 30 20 10 5 3 2 1 2 2.5 3 3.5 4 4.5 R=10k Ω R=20k Ω R=40k Ω R=5k Ω 60 50 40 30 20 10 0 1k 10k 100k 1M 10M FREQUENCY (Hz) 0 1k 10k 100k 1M 10M FREQUENCY (Hz) –30 –60 –90 –120 –150 –180 SL00386 Figure 3. Typical Performance Characteristics |
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