MAX253EPA Maxim Integrated Products, MAX253EPA Datasheet
MAX253EPA
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MAX253EPA Summary of contents
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... DIP, SO, and µMAX ______________Ordering Information PART MAX253CPA MAX253CSA MAX253CUA MAX253C/D MAX253EPA MAX253ESA MAX253ESA/V MAX253MJA * Contact factory for dice specifications. ** Contact factory for availability and processing to MIL-STD-883. Devices are also available in a lead(Pb)-free/RoHS-compliant package. Specify lead-free by adding a (+) to the part number when ordering ...
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Transformer Driver for Isolated RS-485 Interface ABSOLUTE MAXIMUM RATINGS Supply Voltage (V ) ...............................................-0.3V to +7V CC Control Input Voltages (SD, FS) .................-0. Output Switch Voltage (D1, D2) .............................................12V Peak Output Switch Current (D1, D2) ......................................1A Average Output ...
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Operating Characteristics (Circuit of Figure ±10 +25°C, unless otherwise noted OUTPUT RESISTANCE vs. TEMPERATURE (FS = LOW) 10.5 MEASURED AT TP1 10.0 9 4.5V IN 9.0 8.5 8.0 V ...
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Transformer Driver for Isolated RS-485 Interface ____________________________Typical Operating Characteristics (continued) (Circuit of Figure ±10 EFFICIENCY vs. LOAD CURRENT (FS = HIGH) 100 5. 4.5V IN ...
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Configuration TOP VIEW + D1 1 GND1 2 MAX253 DIP/SO/μMAX _______________________________________________________________________________________ Transformer Driver for Isolated RS-485 Interface _____________________Pin Description PIN NAME 1 2 GND1 GND2 N.C. ...
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Transformer Driver for Isolated RS-485 Interface Figure 1. Test Circuit C1 MAX253 FS OSC FREQUENCY SWITCH 400kHz/ 700kHz Figure 2. Block Diagram _______________Detailed Description The MAX253 is an isolated power-supply transformer driver specifically designed to form the ...
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0.1μ MAX253 ON / OFF SD D2 GND1 GND2 74HC04 390Ω 74HC04 390Ω DE 3.3kΩ * 74HC04 RO * 74HC04 OR EQUIVALENT ** SEE TABLE 2 ...
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Transformer Driver for Isolated RS-485 Interface V IN 3.3V C1 0.1µF 5 N.C. 4 MAX253 ON / OFF GND1 GND2 74HC04 390Ω 74HC04 390Ω DE 3.3kΩ * 74HC04 RO * 74HC04 ...
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0.1µF 5 N.C. MAX253 OFF SD GND1 GND2 2 *74HC04 390Ω 74HC04 390Ω 74HC04 390Ω 74HC04 390Ω 74HC04 390Ω 3.3kΩ 74HC04 ...
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Transformer Driver for Isolated RS-485 Interface __________Applications Information Figures 3–5 are typical isolated RS-485/RS-232 data-inter- face circuits. These circuits withstand 1800V and are intended for industrial communications and control applications where very high voltage transients, differential ground potentials, or high ...
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0.1µ OFF 3 FS FREQUENCY SWITCH *SEE TABLE 2 Figure Isolated 5V Application Circuit V IN 3.3V C1 0.1µ OFF 3 FS FREQUENCY SWITCH GND1 ...
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Transformer Driver for Isolated RS-485 Interface MAX253 4 SD GND1 GND2 0.1V to 0.5V MAX480 2 4 49.9kΩ *SEE TABLE 2 Figure 8. Typical 4mA to 20mA Application Circuit ...
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V IN INPUT MAX253 8 D2 GND1 GND2 2 7 *SEE TABLE 2 Figure 9a. Half-Wave Rectifier—Bipolar V IN INPUT MAX253 8 D2 GND1 GND2 2 7 *SEE TABLE 2 ...
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Transformer Driver for Isolated RS-485 Interface 78L05 10μF ISO 5V ISO -12V 10μF MAX176 0.1μ ANALOG AIN CONVST INPUT 3 6 VREF CLOCK 4 5 0.1μF GND DATA 10μF 0.1μF 10μF SIGNAL ...
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A 12V supply could be generated by adding two more diodes to the ends of the secondary, and a -5V supply could be gen- erated ...
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Transformer Driver for Isolated RS-485 Interface age. In addition, include in the calculations an allowance for worst-case losses in the rectifiers. Since the turns ratio determined in this manner will ordinarily produce a much higher voltage at the secondary under ...
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Information PROCESS: CMOS ______________________________________________________________________________________ Transformer Driver for Isolated RS-485 Interface Package Information For the latest package outline information and land patterns www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. ...
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... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 18 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2010 Maxim Integrated Products DESCRIPTION Maxim is a registered trademark of Maxim Integrated Products, Inc ...