MAX8540EEE+ Maxim Integrated Products, MAX8540EEE+ Datasheet
MAX8540EEE+
Specifications of MAX8540EEE+
Related parts for MAX8540EEE+
MAX8540EEE+ Summary of contents
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... Telecom and Network Systems High-Performance Off-Line AC/DC Converters Functional Diagrams and Typical Operating Circuit appear at end of data sheet. ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. ♦ 200kHz to 1MHz Adjustable Switching Frequency ♦ ...
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Synchronizable, High-Frequency Current- and Voltage-Mode PWM Controllers for Isolated Supplies ABSOLUTE MAXIMUM RATINGS V to GND ............................................................-0.3V to +20V CC OPTO, UV, OV, EN, PRAMP, ILIM, REF to GND ......-0.3V to +6V SCOMP, FREQ, CS, SKTON, SKTOFF, SS, MAXDTY to ...
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Synchronizable, High-Frequency Current- and Voltage-Mode PWM Controllers for Isolated Supplies ELECTRICAL CHARACTERISTICS (continued 12V 1µ VCC REF 68kΩ 25kΩ, C SCOMP PRAMP SKTON noted. Typical values are ...
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Synchronizable, High-Frequency Current- and Voltage-Mode PWM Controllers for Isolated Supplies ELECTRICAL CHARACTERISTICS (continued 12V 1µ VCC REF 68kΩ 25kΩ, C SCOMP PRAMP SKTON noted. Typical values are ...
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Synchronizable, High-Frequency Current- and Voltage-Mode PWM Controllers for Isolated Supplies ELECTRICAL CHARACTERISTICS (continued 12V 1µ VCC REF 25kΩ 0.01µF, C PRAMP SKTON SKTOFF unless otherwise noted.) (Note ...
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Synchronizable, High-Frequency Current- and Voltage-Mode PWM Controllers for Isolated Supplies (V = 12V +25°C, unless otherwise specified NO-LOAD SWITCHING CURRENT CC vs. TEMPERATURE 6.0 5.8 5.6 5.4 5.2 5.0 4.8 4.6 4.4 4 ...
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Synchronizable, High-Frequency Current- and Voltage-Mode PWM Controllers for Isolated Supplies (V = 12V +25°C, unless otherwise specified FREQUENCY vs. INPUT VOLTAGE 1000 800 R = 10kΩ FREQ 600 400 R = 20kΩ FREQ 200 R = ...
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Synchronizable, High-Frequency Current- and Voltage-Mode PWM Controllers for Isolated Supplies PIN NAME MAX8540 MAX8541 5V Reference Voltage Output. Bypass to ground with a 1µF capacitor. REF is pulled to GND 1 1 REF during shutdown. System Input Overvoltage Monitoring. The ...
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Synchronizable, High-Frequency Current- and Voltage-Mode PWM Controllers for Isolated Supplies Detailed Description Overvoltage Threshold The MAX8540/MAX8541 include an overvoltage protec- tion (OVP) feature that turns off the external MOSFET when the input voltage exceeds the user-set threshold. Connect a resistor-divider ...
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Synchronizable, High-Frequency Current- and Voltage-Mode PWM Controllers for Isolated Supplies The MAX8540/MAX8541 also synchronize with an external oscillator. Drive FREQ/SYNC with a square wave through a series diode with a positive pulse width of at least 200ns and a minimum ...
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Synchronizable, High-Frequency Current- and Voltage-Mode PWM Controllers for Isolated Supplies where kΩ. The ramp-voltage magnitude is PRAMP independent of frequency. The range of values for R is from 12.4kΩ to 42kΩ. PRAMP The soft-start feature allows converters ...
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Synchronizable, High-Frequency Current- and Voltage-Mode PWM Controllers for Isolated Supplies Pull through a 10kΩ pullup resistor to SKTOFF REF enable the latch-off feature. In this mode, once the SKTON time has elapsed, the IC is latched off. ...
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Synchronizable, High-Frequency Current- and Voltage-Mode PWM Controllers for Isolated Supplies V UVLO COMPARATOR 8V OVERVOLTAGE 3.02V COMPARATOR OV UV 1.25V EN 1.2V SKTOFF SHORT-CIRCUIT SKTON TIMER CS ILIM SS SS_RESET REF Figure 2. MAX8540 Functional Diagram ______________________________________________________________________________________ ...
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Synchronizable, High-Frequency Current- and Voltage-Mode PWM Controllers for Isolated Supplies V UVLO COMPARATOR 8V OVERVOLTAGE 3.02V COMPARATOR OV UV 1.25V EN 1.2V SKTOFF SHORT-CIRCUIT SKTON TIMER CS ILIM SS SS_RESET REF Figure 3. MAX8541 Functional Diagram 14 ...
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Synchronizable, High-Frequency Current- and Voltage-Mode PWM Controllers for Isolated Supplies INPUT 36V TO 76V MAX8515 OPTIONAL OV SYNCHRONIZATION UV FREQ/SYNC U1 SS REF MAX8540 ILIM SCOMP OPTO OFF ON ______________________________________________________________________________________ OUT IN FB VIN PGND GND V CC DRV CS ...
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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. 16 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2003 Maxim Integrated Products PACKAGE OUTLINE, QSOP .150" ...