LM2707MF/NOPB National Semiconductor, LM2707MF/NOPB Datasheet
LM2707MF/NOPB
Specifications of LM2707MF/NOPB
Related parts for LM2707MF/NOPB
LM2707MF/NOPB Summary of contents
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... In addition to LED-drive applications, the LM2707 can also be used as a general purpose DC-DC voltage regulator in boost converter applications. The LM2707 is available in a SOT23-8 surface mount pack- age. Typical Application Circuit © 2005 National Semiconductor Corporation Features n Excellent LED Drive Capability: 3 LED String: 30mA 4 LED String > ...
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... LM2707 is ON when V(EN) is above 1.2V LM2707 is Shutdown when V(EN) is below 0.3V Order Information Order Number Package Marking LM2707MF S0TB LM2707MFX S0TB www.national.com 8-Pin SOT23 Package National Semiconductor Package Number MF08A Package Supplied as: SOT23-8 Tape and Reel, 1000 Units/Reel (MF08A) Tape and Reel, 3500 Units/Reel 2 20099226 ...
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... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications FB, and EN pins IN SW and V pins OVP Continuous Power Dissipation Switch Peak Current Junction Temperature (T ) J-MAX Storage Temperature Range Maximum Lead Temperature ...
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... Electrical Characteristics tables. Note 2: All voltages are with respect to the potential at the GND pin. Note 3: For detailed soldering specifications and information, please consult the National Semiconductor Application Note titled: "Mounting of Surface Mount Components". Note 4: The Human body model is a 100pF capacitor discharged through a 1.5kΩ resistor into each pin. (MIL-STD-883 3015.7) The machine model is a 200pF capacitor discharged directly into each pin ...
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Typical Performance Characteristics (Coilcraft DT1608C-223 MBR0520L (Vishay), C Oscillator Frequency vs. Temperature C = 10pF X Oscillator Period vs. Cx Capacitance Maximum Duty Cycle vs. Temperature C = 10pF X Unless otherwise specified 1.0µ ...
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Typical Performance Characteristics (Coilcraft DT1608C-223 MBR0520L (Vishay), C Feedback Trip Point vs. Supply Voltage Switch Resistance (R ) vs. Switch Current DS-ON Pin 1-2 Resistance vs. Temperature www.national.com Unless otherwise specified 1.0µ 2x1µF, C ...
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Typical Performance Characteristics (Coilcraft DT1608C-223 MBR0520L (Vishay), C Shutdown Supply Current vs. Supply Voltage Supply Current vs. EN Input Voltage EN Threshold vs. Supply Voltage Unless otherwise specified 1.0µ 2x1µ 68pF, T ...
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Typical Performance Characteristics (Coilcraft DT1608C-223 MBR0520L (Vishay), C LED Drive Efficiency vs. Supply Voltage 2 LEDs (Note 11) LED Drive Efficiency vs. Supply Voltage 4 LEDs (Note 11) * 20mA, 4-LED operation requires increasing the current limit. A ...
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Block Diagram FIGURE 1. LM2707 Block Diagram 9 20099227 www.national.com ...
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Simplified Switching Circuit Product Description OVERVIEW The LM2707 is a magnetic switch-mode boost converter that has been designed specifically for driving white LEDs. The device is an asynchronous boost regulator that uses a low- resistance internal NFET power transistor and ...
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Product Description (Continued) An example with C = 68pF 26.3MHz / (15 + 68) = 317kHz. OSC The minimum recommended C capacitance is 10pF. X The rise time ( the C signal is 2.2x longer ...
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Product Description Figure 5 graphs the relationship between inductor current and current limit. Figure 6 plots ideal inductor current wave- forms to illustrate inductor current behavior. Figure 7 gives peak inductor current versus input voltage and shows the two regions ...
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Product Description (Continued Internal Resistance Betwen Rearranging the equation above allows for easy calculation of an external resistance to obtain a desired peak inductor current: OUTPUT OVER-VOLTAGE PROTECTION The LM2707 contains an over-voltage protection circuit ...
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Components and Connectivity (Continued These capacitors have tight capacitance tolerance (as OUT good as +/-10%) and hold their value over temperature (X7R: +/-15% over –55˚C to 125˚C; X5R: +/-15% over –55˚C to 85˚C). Capacitors with a Y5V or ...
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Application Information Table 1. Time-Averaged LED Current vs. PWM Frequency and Duty Cycle PWM Frequency D = 10% 200 Hz 2.3 1 kHz 3.7 10 kHz 2.6 20 kHz 1.0 40 kHz OFF 50 kHz OFF V = 3.6V, 4 ...
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Application Information FIGURE 11. LM2707 LED-Drive Circuit with 2-Bit Digital Logic Brightness Control Application Circuits LM2707 DRIVING 6 LEDs www.national.com (Continued) 16 20099236 20099237 ...
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Application Circuits (Continued) LM2707 DRIVING 3 LEDs LM2707 DRIVING 2 LEDs 20099238 20099239 17 www.national.com ...
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Application Circuits LM2707 DC-DC VOLTAGE CONVERTER CIRCUIT Curves for V = 12V 126kΩ, R OUT FB1 2x1µ 68pF OUT X A accomodate load currents above of 15mA. Output Voltage vs. ...
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... BANNED SUBSTANCE COMPLIANCE National Semiconductor certifies that the products and packing materials meet the provisions of the Customer Products Stewardship Specification (CSP-9-111C2) and the Banned Substances and Materials of Interest Specification (CSP-9-111S2) and contain no ‘‘Banned Substances’’ as defined in CSP-9-111S2. ...