MC34065P Motorola, MC34065P Datasheet
MC34065P
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MC34065P Summary of contents
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... Latching PWM 1 Current Sense 1 6 Drive Output 2 10 Latching PWM 2 Current MC34065DW Sense 2 11 MC34065P Drive Gnd 9 MC33065DW MC33065P Motorola, Inc. 1996 Order this document by MC34065/D MC34065 MC33065 HIGH PERFORMANCE DUAL CHANNEL CURRENT MODE CONTROLLER SEMICONDUCTOR TECHNICAL DATA P SUFFIX PLASTIC PACKAGE ...
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... DC max DC min high = +70 C for MC34065 T high = +85 C for MC33065 Min Typ Max Unit 4.9 5.0 5.1 V – 2 – 3 4.85 – 5. 100 – mA kHz 46 – 0.2 1 49.5 52 – – – 170 250 – 80 160 MOTOROLA ANALOG IC DEVICE DATA ...
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... 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 Compensation 5. Comparator gain is defined Current Sense MOTOROLA ANALOG IC DEVICE DATA MC34065 MC33065 Symbol VOL BW PSRR I source ...
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... PIN FUNCTION DESCRIPTION Description Figure 2. Maximum Output Duty Cycle versus Oscillator Frequency 50 100 pF 48 220 330 4 1 osc, OSCILLATOR FREQUENCY (Hz) MOTOROLA ANALOG IC DEVICE DATA Output 2 Output 100 k 300 k 500 k 1.0 M ...
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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 ...
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... Current Sense 1 8 4.0 MOTOROLA ANALOG IC DEVICE DATA 1.0 ms/DIV Figure 12. Output Waveform 1 ns/DIV 8 SUPPLY VOLTAGE (V) ...
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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 ...
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... PWM Latch 2 Current Sense S Comparator – Drive Gnd Sink Only – Positive True Logic Figure 16. Timing Diagram Drive Output Current Sense Drive Output Current Sense MOTOROLA ANALOG IC DEVICE DATA ...
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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 ...
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... – EA1 5 0 additional MC34065’ max Drive Output Figure 20. Soft–Start Circuit V ref 15 R Bias Osc 2 1 – 2R 1.0 M EA1 R 0 Soft–Start 2100 MOTOROLA ANALOG IC DEVICE DATA R ...
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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 V CC ...
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... PWM 7 Latch closed–loop regulation. – PWM 10 Latch – MOTOROLA ANALOG IC DEVICE DATA Isolation Boundary 1N5819 + Connect to Pin 4 for ...
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... V Outputs 1.0 A 9.0 V Output 0.1 A Short Circuit Current 115 Vac 0.1 100 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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... 100 F 200 V L2 0.001 T2 1.0 kV 270 F T3 250 V 100 F 1N4937 5 5.0 W 330 pF MTH8N45 1.0 kV 3.3 5.0 W MTD2N50 Heat Sink 0.082 2.0 W Component View *100 V and 12 V Shutdown MOTOROLA ANALOG IC DEVICE DATA 4 1 1000 1000 MUR415 MUR415 ...
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... Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “ ...