TC1044S Microchip Technology, TC1044S Datasheet
TC1044S
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TC1044S Summary of contents
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... Frequency is increased to 45kHz when pin 1 is connected to V current applications) is possible by connecting an external capacitor from OSC to ground (with pin 1 open). to 45kHz The TC1044S is available in both 8-pin DIP and 8-pin small outline (SOIC) packages in commercial and extended temperature ranges. ORDERING INFORMATION Part No. ...
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... FF Z Oscillator Impedance OSC NOTES: 1. Connecting any input terminal to voltages greater than V inputs from sources operating from external supplies be applied prior to "power up" of the TC1044S. 2. Derate linearly above 5.5mW/ C. TC1044S-12 9/16/96 Charge Pump DC-TO-DC Voltage Converter Package Power Dissipation (T 8-Pin CerDIP .................................................. 800mW 8-Pin Plastic DIP ...
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... OUT and the substrate bias adjusted accordingly. Failure to accomplish this will result in high power losses and probable device latch-up. This problem is eliminated in the TC1044S by a logic network which senses the output voltage (V with the level translators, and switches the substrates of S and S ...
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... The output characteristics of the circuit in Figure 3 are those of a nearly ideal voltage source in series with 70 . Thus, for a load current of –10mA and a supply voltage of +5V, the output voltage would be – 4.3V. The dynamic output impedance of the TC1044S is due, primarily, to capacitive reactance of the charge transfer + supply for voltages ...
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... Output transitions occur on the positive-going edge of the clock also possible to increase the conversion efficiency of the TC1044S at low load levels by lowering the oscillator ) frequency. This reduces the switching losses, and is achieved by connecting an additional capacitor, C Figure 7 ...
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... Figure 10 shows a TC1044S transforming –5V to +5V (or +5V to +10V, etc.). The only problem here is that the internal clock and switch- drive section will not operate until some positive voltage has been generated ...
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... F k 100 Figure 11. Splitting a Supply in Half with Boost Pin = 12V IN - TEMPERATURE ( C) Voltage Conversion Without Load 10K Load INPUT VOLTAGE V (V) IN TC1044S-12 9/16/ – 100 ...
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... SUPPLY VOLTAGE (V) Output Voltage vs. Output Current -10 - OUTPUT CURRENT (mA) 200 175 150 125 100 TC1044S-12 9/16/96 Charge Pump DC-TO-DC Voltage Converter Output Source Resistance vs. Temperature 100 20mA OUT 8.5 9.5 10.5 11.5 12 100 ...
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... PIN 1 .260 (6.60) .240 (6.10) .070 (1.78) .040 (1.02) .348 (8.84) .040 (1.02) .020 (0.51) .015 (0.38) .008 (0.20) .022 (0.56) .015 (0.38) 8-Pin CerDIP PIN 1 .300 (7.62) .230 (5.84) .020 (0.51) MIN. .040 (1.02) .020 (0.51) .015 (0.38) .150 (3.81) .008 (0.20) MIN. .020 (0.51) .016 (0.41) 9 TC1044S .310 (7.87) .290 (7.37) 3 MIN. .400 (10.16) .310 (7.87) .320 (8.13) .290 (7.37) 3 MIN. .400 (10.16) .320 (8.13) Dimensions: inches (mm) TC1044S-12 9/16/96 ...
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... TC1044S PACKAGE DIMENSIONS (CONT.) .050 (1.27) TYP. .197 (5.00) .189 (4.80) .020 (0.51) .013 (0.33) TC1044S-12 9/16/96 Charge Pump DC-TO-DC Voltage Converter 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 .010 (0.25) .007 (0.18) Dimensions: inches (mm) © 2001 Microchip Technology Inc. DS21348A ...
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... Centro Direzionale Colleoni Palazzo Taurus Colleoni 1 20041 Agrate Brianza Milan, Italy Tel: 39-039-65791-1 Fax: 39-039-6899883 United Kingdom Arizona Microchip Technology Ltd. 505 Eskdale Road Winnersh Triangle Wokingham Berkshire, England RG41 5TU Tel: 44 118 921 5869 Fax: 44-118 921-5820 01/09/01 Printed on recycled paper. TC1044S-12 9/16/96 ...