LM3519MKEV National Semiconductor, LM3519MKEV Datasheet
LM3519MKEV
Specifications of LM3519MKEV
Related parts for LM3519MKEV
LM3519MKEV 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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Connection Diagram Pin Descriptions Pin # Name Gnd 3 V OUT 4 LED_rtn Ordering Information Current Option Order Number LM3519MK- LM3519MKX-20 www.national.com 6-Lead SOT23 Package 20160202 Top View Description ...
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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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... BANNED SUBSTANCE COMPLIANCE National Semiconductor manufactures products and uses packing materials that 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. ...