ICL7660ESA+ Maxim, ICL7660ESA+ Datasheet
ICL7660ESA+
Specifications of ICL7660ESA+
Related parts for ICL7660ESA+
ICL7660ESA+ Summary of contents
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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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... Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability ...
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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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... GND LV CAP- V OUT Figure 1. Maxim MAX1044/ICL7660 Test Circuit _______________Detailed Description The MAX1044/ICL7660 are charge-pump voltage con- verters. They work by first accumulating charge in a bucket capacitor and then transfer it into a reservoir capacitor. The ideal voltage inverter circuit in Figure 2 illustrates this operation. _______________________________________________________________________________________ FUNCTION During the first half of each cycle, switches S1 & ...
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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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... The disadvantage is increased quiescent current and reduced efficiency at higher supply voltages. For Maxim’s ICL7660, the LV pin must be left open for supply voltages above 5V. When operating at low supply voltages with LV open, connections to the LV, BOOST, and OSC pins should be short or shielded to prevent EMI from causing oscillator jitter ...
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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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... OSC pro- vides the highest efficiency possible. Leaving the bucket OSC and reservoir capacitors at 100µF gives a maximum I of 2mA, a no-load quiescent current of 10µA, and OUT a power conversion efficiency of 98%. 1) Connecting any input terminal to voltages greater than V+ or less than ground may cause latchup ...
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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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... OPEN-DRAIN OR * Contact factory for dice specifications. 74LS03 ** Contact factory for availability. OPEN-COLLECTOR NAND GATES † The Maxim ICL7660 meets or exceeds all “A” and “S” specifications. Paralleling Devices (of MAX1044 or ICL7660) n (number of devices) Shutdown Schemes TEMP. RANGE PIN-PACKAGE -40°C to +85° -55° ...
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... B A1 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 © ...