LT3590ESC8#TRMPBF Linear Technology, LT3590ESC8#TRMPBF Datasheet
LT3590ESC8#TRMPBF
Specifications of LT3590ESC8#TRMPBF
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LT3590ESC8#TRMPBF Summary of contents
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... SC70 package or 2mm × 2mm DFN package to allow a small converter footprint and lower parts cost. , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. 100 ...
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LT3590 ABSOLUTE MAXIMUM RATINGS (Note 1) Input Voltage (V ) ..................................... –0.3V to 55V IN LED Voltage ............................................... –0.3V to 55V CTRL Voltage ................................................. 0V to 6.0V VREG Voltage ................................................. 0V to 4.0V Operating Junction Temperature Range (Note 2) ...............................................– ...
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ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T PARAMETER Minimum Operating Voltage LED Current Sense Voltage ( LED Sense Voltage Load Regulation Quiescent Current ON, No Switching Quiescent Current in Shutdown Switching Frequency Maximum ...
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LT3590 TYPICAL PERFORMANCE CHARACTERISTICS Switch Saturation Voltage (V ) CESAT 0.8 0.7 –40°C 0.6 125°C 0.5 25°C 0.4 0.3 0 SWITCH CURRENT (mA) 3590 G01 Shutdown Quiescent Current vs Temperature CTRL V ...
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TYPICAL PERFORMANCE CHARACTERISTICS Sense Voltage (V – LED vs V CTRL 0. 48V 50mA LED T = 25°C A 0.20 0.15 0.10 0. 0.5 1.5 V (V) CTRL 3590 ...
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LT3590 PIN FUNCTIONS (SC70/DFN) SW (Pin 1/Pin 3): Switch Pin. Minimize trace area at this pin to minimize EMI. Connect the inductor at this pin. GND (Pins 2, 3, 4/Pin 2): Ground Pins. All ground pins should be tied directly ...
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OPERATION The LT3590 uses a constant-frequency, current mode control scheme to provide excellent line and load regula- tion. Operation can be best understood by referring to the Block Diagram. At power-up, the bandgap reference, the start-up bias, and the regulator ...
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LT3590 APPLICATIONS INFORMATION Inductor Selection A 220μH inductor is recommended for most LT3590 ap- plications with V < 25V and 470μH is recommended for IN applications with V > 25V. Although small size and high IN effi ciency are major ...
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APPLICATIONS INFORMATION Programming LED Current The feedback resistor (R1 in Figure 1) and the sense volt- age ( control the LED current. IN LED − LED = I LED R 1 The CTRL pin ...
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LT3590 APPLICATIONS INFORMATION Direct PWM Dimming Changing the forward current fl owing in the LEDs not only changes the intensity of the LEDs, it also changes the color. The chromaticity of the LEDs changes with the change in forward current. ...
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APPLICATIONS INFORMATION The dimming range can be further extended by changing the amplitude of the PWM signal. The height of the PWM signal sets the commanded sense voltage across the sense resistor through the CTRL pin. In this manner both ...
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LT3590 TYPICAL APPLICATIONS 48V Supply for 6 LED String, 50mA Current R1 4Ω 48V C1 1μF V LED IN CONTROL CTRL >1.5V LT3590 VREG SW C3 GND 0.1μF L1: MURATA LQH32CN221K03 48V Supply for 5 LED String, 30mA ...
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TYPICAL APPLICATIONS 12V or 24V Supply for a Single LED, 50mA Current C2 2.2μF R1 4Ω 12V OR 24V C1 1μF V LED IN CONTROL CTRL >1.5V LT3590 VREG SW C3 GND 0.1μF 48V Supply for Two Strings ...
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LT3590 PACKAGE DESCRIPTION 2.50 ±0.05 0.61 ±0.05 1.15 ±0.05 (2 SIDES) 0.50 BSC 1.42 ±0.05 (2 SIDES) RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS NOTE: 1. DRAWING TO BE MADE A JEDEC PACKAGE OUTLINE M0-229 VARIATION OF (WCCD-2) 2. DRAWING NOT ...
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... DIMENSIONS ARE EXCLUSIVE OF MOLD FLASH AND METAL BURR Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. SC8 Package 8-Lead Plastic SC70 (Reference LTC DWG # 05-08-1639 Rev Ø ...
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... High Current LED Driver with 3,000:1 Dimming LT3591 Constant Current, 1MHz, High Effi ciency White LED Boost Regulator with Integrated Schottky Diode and 80:1 True Color PWM Dimming ThinSOT and True Color PWM are trademarks of Linear Technology Corporation. Linear Technology Corporation 16 1630 McCarthy Blvd., Milpitas, CA 95035-7417 ...