LM3519MK-20/NOPB National Semiconductor, LM3519MK-20/NOPB Datasheet
LM3519MK-20/NOPB
Specifications of LM3519MK-20/NOPB
LM3519MK-20TR
Related parts for LM3519MK-20/NOPB
LM3519MK-20/NOPB Summary of contents
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... LEDs to ground. The LM3519 is available in a tiny 6-pin SOT23 package. Typical Application © 2005 National Semiconductor Corporation Features n Drives LEDs at 20mA 30kHz PWM Dimming Control Capability > ...
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... Ordering Information Current Option Order Number LM3519MK- LM3519MKX-20 www.national.com 6-Lead SOT23 Package 20160202 Top View Description Device Enable Connection Ground Connection Output Voltage Connection White LED Current Sensing Input Connection Drain Connection of the Internal Power Field Effect Transistor (FET) Switch Input or Supply Voltage Connection ...
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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 En, & LED_rtn Pin Pin OUT Maximum Junction Temperature (T ) J-MAX Storage Temperature Range Electrical Characteristics apply over the full operating junction temperature range (−40˚C ≤ T ...
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Block Diagram www.national.com FIGURE 2. Block Diagram 4 20160203 ...
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Circuit Description The LM3519 is a step-up converter for white LED applica- tions that uses a unique and proprietary pulse frequency modulation (PFM) architecture to optimize high efficiency at high frequency operation. Unlike most PFM architecture implementations, the LM3519’s unique ...
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Typical Performance Characteristics C = 1µ 2.2µH and 4 LEDs. T OUT Efficiency vs V Efficiency OUT_ACCURACY www.national.com (See Typical Application Circuit : V = +25˚C, unless otherwise stated 20160251 IN ...
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Typical Performance Characteristics C = 1µ 2.2µH and 4 LEDs. T OUT OUT OUT PWM Duty Cycle OUT (V = 3.6V 2.2µH) IN (See Typical ...
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Typical Performance Characteristics C = 1µ 2.2µH and 4 LEDs. T OUT I vs PWM Duty Cycle OUT (V = 3.6V 1µH) IN Switching Frequency vs V Switching Frequency vs V www.national.com (See Typical Application Circuit ...
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Typical Performance Characteristics C = 1µ 2.2µH and 4 LEDs. T OUT A Peak Inductor Current vs V Current Limit vs V (4LEDs, 1µ (non switching) vs Temperature (See Typical Application Circuit : V = +25˚C, ...
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Typical Performance Characteristics C = 1µ 2.2µH and 4 LEDs. T OUT LED Switch R vs Temperature DS_ON Start-up 3.6V, 4LEDs, 2.2µH) IN Start- 3.6V, 2LEDs, 3.3µH) IN www.national.com (See Typical Application Circuit : ...
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Typical Performance Characteristics C = 1µ 2.2µH and 4 LEDs. T OUT A Typical Switching Waveform (V = 3.6V, 4LEDs, 3.3µH) IN Typical Switching Waveform (V = 3.6V, 3LEDs, 2.2µH) IN Typical Switching Waveform (V = 3.6V, 3LEDs, ...
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Application Information CAPACITOR SELECTION To minimize output and input voltage ripple, low equivalent series resistance (ESR) ceramic capacitors are the best choice to use for the input and output filters. For most display applications, a 4.7µF capacitor is recommended for ...
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Application Information OUT IN (Continued) LAYOUT GUIDELINES The input capacitor, C LM3519. Placing C metal trace resistance effect on input voltage ripple. Metal trace connections for the C effective series resistance, which affects output voltage ripple and ...
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