mc33065-l ON Semiconductor, mc33065-l Datasheet
mc33065-l
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mc33065-l Summary of contents
Page 1
... The MC34065 and MC33065 are available in dual–in–line and surface mount packages. Unique Oscillator for Precise Duty Cycle Limit and Frequency Control ...
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... Adjust V CC above the startup threshold before setting Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient as possible: T low = 0 C for the MC34065 T low = –40 C for the MC33065 4. This parameter is measured at the latch trip point with ...
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... Adjust V CC above the startup threshold before setting Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient as possible: T low = 0 C for the MC34065 T low = –40 C for the MC33065 4. This parameter is measured at the latch trip point with ...
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... 6 4 100 k 300 k 500 k f osc, OSCILLATOR FREQUENCY (Hz) 4 MC34065 MC33065 PIN FUNCTION DESCRIPTION Description Figure 2. Maximum Output Duty Cycle versus Oscillator Frequency 50 100 pF 48 220 330 4 ...
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... – 125 C –20 – ref , REFERENCE SOURCE CURRENT (mA) MOTOROLA ANALOG IC DEVICE DATA MC34065 MC33065 Figure 4. Error Amp Large–Signal –1.0 3 2.5 V 2.0 V Figure 6. Current Sense Input Threshold versus Error Amp Output Voltage 0 0.6 ...
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... 1.0 Gnd 0 0 200 400 OUTPUT LOAD CURRENT (mA) Figure 13. Output Cross Conduction Current 100 ns/DIV 6 MC34065 MC33065 Figure 10. Reference Line Regulation µs Pulsed Load 90% – 120 Hz Rate 10% – Sink Saturation (Load 600 800 Figure 14. Supply Current versus Supply Voltage ...
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... The Error Amp output (Pin 5, 12) is provided for external loop compensation. The output voltage is offset by two diode MOTOROLA ANALOG IC DEVICE DATA MC34065 MC33065 OPERATING DESCRIPTION drops ( 1.4 V) and divided by three before it connects to the inverting input of the Current Sense Comparator. This ...
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... Input Compensation 1 Current Sense 1 Latch 1 “Reset” Input Drive Output 1 Drive Output 2 Enable Latch 2 “Set” Input Compensation 2 Current Sense 2 Latch 2 “Reset” Input Drive Output 2 8 MC34065 MC33065 Reference – Regulator + – UVLO + – V ref + 3 ...
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... A maximum rating. The sink saturation ( less than 0 100 mA. MOTOROLA ANALOG IC DEVICE DATA MC34065 MC33065 A separate Drive Ground pin is provided and, with proper implementation, will significantly reduce the level of switching transient noise imposed on the control circuitry. This becomes particularly useful when reducing the I pk(max) clamp level ...
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... Osc 2 1 Clamp + 4 – – EA1 R 0 1. –3 R1R2 V ) Clamp MC34065 MC33065 Figure 18. External Duty Cycle Clamp and Multi–Unit Synchronization Bias – – MC1455 ...
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... Virtually lossless current sensing can be achieved with the implementation of a SENSEFET power switch. For proper operation during over current conditions, a reduction of the I pk(max) clamp level must be implemented. Refer to Figures 19 and 21. MOTOROLA ANALOG IC DEVICE DATA MC34065 MC33065 Figure 22. MOSFET Parasitic Oscillations ...
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... The capacitor’s equivalent series resistance must limit the Drive Output current to 1 additional series resistor may be required when using tantalum or other low ESR capacitors. The positive output can provide excellent line and load regulation by connecting the R2/R1 resistor divider as shown. 12 MC34065 MC33065 Figure 26. Isolated MOSFET Drive ...
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... V Outputs 1.0 A 9.0 V Output 0 115 Vac 0.1 Ω Short Circuit Current 100 V Output 12 V Outputs 9.0 V Output Efficiency Vin = 115 Vac 125 W MOTOROLA ANALOG IC DEVICE DATA MC34065 MC33065 Figure 28. 125 Watt Off–Line Converter MDA + 970G5 270 56 k MUR110 T2 + 100 ...
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... Figure 29. 125 Watt Off–Line Converter AC Input AC Line Input T 0.22 µF 250 V T1 0.05 µF 250 V 4N35 4 4700 5.4 k 16.2 k 1.0 M 100 14 MC34065 MC33065 5 11/16 Circuit View * 9.0 V 100 –12 V 3300 10 k 3300 10 µ µF 10 µF .01 6 TL431 51 k 100 µF 220 µF ...
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... USA / EUROPE / Locations Not Listed: Motorola Literature Distribution; P.O. Box 20912; Phoenix, Arizona 85036. 1–800–441–2447 or 602–303–5454 MFAX: RMFAX0@email.sps.mot.com – TOUCHTONE 602–244–6609 INTERNET: http://Design–NET.com MOTOROLA ANALOG IC DEVICE DATA MC34065 MC33065 OUTLINE DIMENSIONS P SUFFIX PLASTIC PACKAGE CASE 648–08 ...