MAX1910EUB Maxim Integrated Products, MAX1910EUB Datasheet
MAX1910EUB
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MAX1910EUB Summary of contents
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... Up to 120mA Output Current ♦ No Inductors Required ♦ Small Ceramic Capacitors ♦ Regulated ±5% LED Current ♦ Load Disconnected in Shutdown ♦ 1µA Shutdown Current ♦ Small 10-Pin µMAX Package Applications PART MAX1910EUB MAX1912EUB TOP VIEW Charge Pumps Features Ordering Information TEMP RANGE PIN-PACKAGE - + µ ...
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High-Efficiency White LED Charge Pumps ABSOLUTE MAXIMUM RATINGS IN1, IN2, OUT, SHDN, SET to GND …………………-0.3V to +6V C1-, C2-, to GND..................................................-0.3V, V C1+, C2+ to GND..........-0.3V, greater of V OUT Short-Circuit to GND ..........................................Continuous Stresses beyond those listed ...
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ELECTRICAL CHARACTERISTICS (continued) = 3.6V, GND = 0, SHDN = SET = IN noted.) (Note 1) PARAMETER Output Leakage Current in Shutdown SET Regulation Point SET Input Current SHDN Input Current SHDN Input Voltage Low SHDN Input ...
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High-Efficiency White LED Charge Pumps (Circuit of Figure 3.3V +25°C, unless otherwise noted EFFICIENCY vs. INPUT VOLTAGE 100 CIRCUIT OF FIGURE 2 MAX1910 4 ...
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The MAX1910/MAX1912 include soft-start circuitry to limit inrush current at turn-on. When starting up with the output voltage at zero, the ...
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High-Efficiency White LED Charge Pumps Applications Information Adjusting LED Intensity Figure 8 shows a circuit using a DAC to set the LED intensity. Maximum intensity occurs when the output of the DAC is zero. R can be initially estimated ...
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V IN 0.47 F 2.2 F 0.47 F Figure 2. LED Biasing with the MAX1912 0.47 F 2.2 F 0.47 F Figure 3. The MAX1912 Regulating Average Current Through LEDs _______________________________________________________________________________________ 1.5x/2x High-Efficiency White LED IN2 ...
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High-Efficiency White LED Charge Pumps 0.47 F 2.2 F 0.47 F Figure 4. Alternate Method of Biasing to Improve LED-to-LED Matching 1 V IN1 IN C1+ 0.47 F 2.2 F C1- C2+ 0.47 F C2- Figure ...
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V IN Figure 6. Output Voltage Set with a Resistor-Divider 2.2 F 2.2 F Figure 7. C-R-C Filter Reduces Ripple On the Input _______________________________________________________________________________________ 1.5x/2x High-Efficiency White LED IN2 SHDN IN1 OUT C1+ 0.47 F 2.2 ...
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High-Efficiency White LED Charge Pumps 0.47 F 2.2 F 0.47 F MAX5380 (2-WIRE INPUT) MAX5383 (3-WIRE INPUT) Figure 8. Circuit with SOT DAC for Intensity Control 2.2 F Figure 9. Using Digital Logic ...
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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. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 11 © 2004 Maxim Integrated Products 1 ...