MAX1044ESA Maxim Integrated Products, MAX1044ESA Datasheet
MAX1044ESA
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... MAX1044 ICL7660 CAP- V OUT GND NEGATIVE VOLTAGE CONVERTER ________________________________________________________________ Maxim Integrated Products Call toll free 1-800-998-8800 for free samples or literature. ____________________________Features Miniature µMAX Package 1.5V to 10.0V Operating Supply Voltage Range 98% Typical Power-Conversion Efficiency Invert, Double, Divide, or Multiply Input Voltages BOOST Pin Increases Switching Frequencies (MAX1044) No-Load Supply Current: 200µ ...
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Switched-Capacitor Voltage Converters ABSOLUTE MAXIMUM RATINGS Supply Voltage (V+ to GND, or GND to V OUT Input Voltage on Pins 1, 6, and 7 .........-0.3V ≤ Input Current ..................................................................20µA Output Short-Circuit Duration (V+ ≤ 5.5V)..................Continuous Continuous Power Dissipation ...
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Switched-Capacitor Voltage Converters __________________________________________Typical Operating Characteristics ( 0.1µ 10µ open; OSC = open; T BYPASS OUTPUT VOLTAGE and OUTPUT RIPPLE vs. LOAD CURRENT -2.0 400 OUTPUT 350 VOLTAGE -1.5 300 ...
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Switched-Capacitor Voltage Converters ____________________________Typical Operating Characteristics (continued) ( 0.1µ 10µ open; OSC = open; T BYPASS OSCILLATOR FREQUENCY vs. TEMPERATURE 100 A: MAX1044 with BOOST = ICL7600 ...
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Switched-Capacitor Voltage Converters _____________________________________________________________ Pin Description PIN NAME BOOST Frequency Boost. Connecting BOOST to V+ increases the oscillator frequency by a factor of six. When the (MAX1044) oscillator is driven externally, BOOST has no effect and should be left open. ...
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Switched-Capacitor Voltage Converters Figure 2. Ideal Voltage Inverter Figure 3a. Switched Capacitor Model R EQUIV EQUIV Figure 3b. Equivalent Circuit 6 _______________________________________________________________________________________ ...
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Switched-Capacitor Voltage Converters 1 8 MAX1044 ICL7660 10µ *REQUIRED FOR V+ < 3.5V Figure 5. Basic Negative Voltage Converter and allow operation down to 1.5V. For low-voltage operation and compatibility with the ...
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Switched-Capacitor Voltage Converters MAX1044 2 7 ICL7660 10µ Figure 7. External Clocking a function of oscillator frequency and the capacitor value. Oscillator frequency, in turn, is influenced by temperature and supply voltage. For ...
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Switched-Capacitor Voltage Converters The first term is the effective resistance from the switched-capacitor circuit. Conversion losses occur during the transfer of charge between capacitors C1 and C2 when there is a voltage difference between them. The power loss is: 1 ...
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Switched-Capacitor Voltage Converters 1 2 MAX1044 ICL7660 C1 3 10µ OUT 2 C2 10µF Figure 10. Voltage Divider Positive Voltage Doubler Figure 9 illustrates the recommended voltage doubler circuit for the MAX1044/ICL7660. To reduce the ...
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... The first circuit has the least loading on the C2 OSC pin and has the added advantage of controlling shutdown with a high or low logic level, depending on the orientation of the switching diode. _Ordering Information (continued) PART V+ CMOS or TTL GATE MAX1044ESA MAX1044MJA ICL7660CPA ICL7660CSA ICL7660CUA ICL7660C/D V -(V+) OUT ICL7660EPA 10µ ...
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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. 12 __________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600 © 1994 Maxim Integrated Products CAP+ 0.076" ...