TC7662BEOA713 Microchip Technology, TC7662BEOA713 Datasheet
TC7662BEOA713
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TC7662BEOA713 Summary of contents
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... OSC OSCILLATOR 6 LV REGULATOR TC7662B © 2001 Microchip Technology Inc. DS21469A GENERAL DESCRIPTION The TC7662B is a pin-compatible upgrade to the Indus- try standard TC7660 charge pump voltage converter. It converts a +1.5V to +15V input to a corresponding – 1.5 to – 15V output using only two low-cost capacitors, eliminating inductors and their associated cost, size and EMI ...
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... C — — A +125 C — — A — — — — — — 99.9 — 1 — 100 © 2001 Microchip Technology Inc. Max Unit 160 A 180 A 180 A 200 A 300 A 350 400 15 V 3.5 V 100 120 150 250 300 400 — kHz — ...
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... OSC of C and C should be increased to 100 µ Figure 1. TC7662B Test Circuit © 2001 Microchip Technology Inc. DS21469A THEORETICAL POWER EFFICIENCY CONSIDERATIONS In theory, a voltage converter can approach 100% efficiency if certain conditions are met: A. The drive circuitry consumes minimal power. B. The output switches have extremely low ON resistance and virtually no offset ...
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... The magnitude of this 2 , hence the total drop OUT volts. Segment B is the voltage change across C , the half of the cycle when volts. The peak-to- OUT ESR OUT PUMP Figure 4. Output Ripple © 2001 Microchip Technology Inc. > OSC + ESR term OUT 2 supplies current ) DS21469A ...
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... F *V OUT = – Figure 6. Cascading Devices for Increased Output Voltage © 2001 Microchip Technology Inc. DS21469A Changing the TC7662B Oscillator Frequency It may be desirable in some applications (due to noise or other considerations) to increase the oscillator frequency. This is achieved by one of several methods described below: . The resultant output ...
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... OUT = – OUT = V + –V – and CHARGE PUMP DC-TO-DC VOLTAGE CONVERTER TC7662B OUT = – TC7662B Figure 11. Splitting a Supply in Half © 2001 Microchip Technology Inc. V OUT = – – – DS21469A ...
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... TC7662B 100 800k 250K VOLTAGE ADJUST Figure 12. Regulating the Output Voltage © 2001 Microchip Technology Inc. DS21469A TTL DATA INPUT – 4 Figure 13. RS232 Levels from a Single 5V Supply – OUT 100 F 7 ...
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... CHARGE PUMP DC-TO-DC VOLTAGE CONVERTER Voltage Conversion INPUT VOLTAGE -40 - TEMPERATURE ( C) Supply Current vs. Temperature V = 12. 5.5V IN -40 - TEMPERATURE ( C) © 2001 Microchip Technology Inc. Without Load 10K Load 5. 100 60 80 100 DS21469A ...
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... Unloaded Osc Freq vs. Temperature -40 - TEMPERATURE ( C) PACKAGE DIMENSIONS .045 (1.14) .030 (0.76) .200 (5.08) .140 (3.56) .150 (3.81) .115 (2.92) .110 (2.79) .090 (2.29) © 2001 Microchip Technology Inc. DS21469A 12V 100 -40 8-Pin Plastic DIP PIN 1 .260 (6.60) .240 (6.10) .070 (1.78) ...
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... TC7662B-8 9/11/96 8-Pin SOIC .157 (3.99) .244 (6.20) .150 (3.81) .228 (5.79) .069 (1.75) .053 (1.35) 8 MAX. .010 (0.25) .050 (1.27) .004 (0.10) .016 (0.40) 10 CHARGE PUMP DC-TO-DC VOLTAGE CONVERTER .010 (0.25) .007 (0.18) Dimensions: inches (mm) © 2001 Microchip Technology Inc. DS21469A ...
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... Microchip. No licenses are conveyed, implicitly or otherwise, except as maybe explicitly expressed herein, under any intellec- tual property rights. The Microchip logo and name are registered trademarks of Microchip Technology Inc. in the U.S.A. and other countries. All rights reserved. All other trademarks mentioned herein are the property of their respective companies. ...