MC34163 ON Semiconductor, MC34163 Datasheet
MC34163
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MC34163 Summary of contents
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... MC34163, MC33163 3.4 A, Step−Up/Down/ Inverting Switching Regulators The MC34163 series are monolithic power switching regulators that contain the primary functions required for dc−to−dc converters. This series is specifically designed to be incorporated in step−up, step−down, and voltage−inverting applications with a minimum number of external components ...
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... MC33163DWG MC33163DWR2 MC33163DWR2G MC33163P MC33163PG MC34163DW MC34163DWG MC34163DWR2 MC34163DWR2G MC34163P MC34163PG †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. MC34163, MC33163 Symbol C(switch) V E(switch) V CE(switch ...
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... V) I C(off source(DRV mA OL(LVI 70°C for MC34163 = + 85°C for MC33163 http://onsemi.com 3 = 25°C, for min/max values Min Typ Max Unit kHz − − 225 − mA − ...
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... Figure 4. Feedback Comparator 1 Input Bias Current versus Temperature 2 Pin 2.4 2.0 1.6 1.2 − 55 − AMBIENT TEMPERATURE (°C) A Figure 6. Bootstrap Input Current Source versus Temperature MC34163, MC33163 2.0 0 − 2.0 − 4.0 − 6.0 10 − 55 − 25 Figure 3. Oscillator Frequency Change 1300 5. FB1 CC ...
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... T , AMBIENT TEMPERATURE (°C) A Figure 12. Current Limit Comparator Threshold Voltage versus Temperature MC34163, MC33163 1.2 Darlington, Pins 9, 10, 11 Connected 1.0 CC 0.8 Grounded Emitter Configuration Collector Sinking Current From V 0.6 Pins Pins 4, 5, 12, 13, 14 GND 0 25°C, (Note ...
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... AMBIENT TEMPERATURE (°C) A Figure 16. Minimum Operating Supply Voltage versus Temperature 100 Figure 18. DW Suffix (SOP−16L) Thermal Resistance and Maximum Power Dissipation versus P.C.B. Copper Length MC34163, MC33163 7.2 6.4 5.6 Pins 4.8 Pins GND Remaining Pins Open T = 25° − ...
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... MC34163, MC33163 0. − pk Sense + + Timing Capacitor 6 Oscillator C T Shutdown Thermal GND 4 Voltage Feedback Voltage Feedback − 1. LVI Output − LVI 1.125 V Figure 19. Representative Block Diagram 1 Comparator Output 0 1.25 V Timing Capacitor Oscillator Output ...
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... Representative Block Diagram is shown in Figure 19. OPERATING DESCRIPTION The MC34163 operates as a fixed on−time, variable off−time voltage mode ripple regulator. In general, this mode of operation is somewhat analogous to a capacitor charge pump and does not require dominant pole loop compensation for converter stability. The Typical Operating Waveforms are shown in Figure 20. The output voltage waveform shown is for a step− ...
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... Figure 16 shows that functional operation down room temperature is possible. Package The MC34163 is contained in a heatsinkable 16−lead plastic dual−in−line package in which the die is mounted on a special heat tab copper alloy lead frame. This tab consists of the four center ground pins that are specifically designed to improve thermal conduction from the die to the circuit board ...
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... Figure 21. Step−Down Converter (Bottom View) Figure 22A. External NPN Switch Figure 22. External Current Boost Connections for I MC34163, MC33163 Current Limit Latch Feedback 1N5822 15 Comparator 0.02 2 ...
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... MC34163, MC33163 0. 0.075 330 6 Oscillator C T 680 pF 5 Thermal Low Voltage + Indicator 1 + − Output R LVI LVI 1 2 Test Line Regulation V Load Regulation V Output Ripple V Efficiency V Figure 23. Step−Up Converter ...
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... MC34163, MC33163 Current 0.25 V Limit 8 − 0.075 330 6 Oscillator C T 470 pF 5 Thermal − 1. − LVI 1.125 (Bottom View) 1 8.2 k 953 Test Line Regulation V Load Regulation V Output Ripple V Short Circuit Current V Efficiency, Without Bootstrap ...
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... Bottom View + + Bottom View + + Bottom View All printed circuit boards are 2.58" in width by 1.9" in height. Figure 27. Printed Circuit Board and Component Layout MC34163, MC33163 + + − − − (Circuits of Figures 21, 23, 25) http://onsemi.com − Top View ...
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... Output rectifier forward voltage drop. Typical value for 1N5822 Schottky barrier rectifier is 0 NOTES: 3. The calculated t /t must not exceed the minimum guaranteed oscillator charge to discharge ratio the minimum on off NOTES: 3. operating input voltage. MC34163, MC33163 Step−Up V out ) V F – – V sat off t on ƒ ...
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... 16X 0.005 (0.13 16X 0. 14X MC34163, MC33163 PACKAGE DIMENSIONS PDIP−16 P SUFFIX CASE 648C−04 ISSUE D B SEATING T PLANE SOIC−16W DW SUFFIX CASE 751G−03 ISSUE C q SEATING PLANE C T http://onsemi.com 15 NOTES: 1 ...
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... P.O. Box 61312, Phoenix, Arizona 85082−1312 USA Phone: 480−829−7710 or 800−344−3860 Toll Free USA/Canada Fax: 480−829−7709 or 800−344−3867 Toll Free USA/Canada Email: orderlit@onsemi.com MC34163, MC33163 N. American Technical Support: 800−282−9855 Toll Free USA/Canada Japan: ON Semiconductor, Japan Customer Focus Center 2− ...