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LTM8005 データシート(PDF) 1 Page - Linear Technology |
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LTM8005 データシート(HTML) 1 Page - Linear Technology |
1 / 26 page LTM8005 1 8005f For more information www.linear.com/LTM8005 TYPICAL APPLICATION FEATURES DESCRIPTION 38VIN Boost µModule Regulator for LED Drive with 10A Switch The LTM®8005 is a 38VIN, 38VOUT boost µModule (power micromodule) LED driver designed to regulate current or voltage and is ideal for driving LEDs. The fixed frequency and current mode architecture result in stable operation over a wide range of supply and output voltages. Spread spectrum frequency modulation (SSFM) can be activated for improved electromagnetic compatibility (EMC) perfor- mance. The ground-referred voltage FB pin serves as the input for several LED protection features, and also allows the converter to operate as a constant voltage source. The PWM input provides LED dimming ratios of up to 3000:1, and the CTRL inputs provide additional analog dimming capability. The low profile package enables utilization of unused space on the bottom of PC boards. The LTM8005 is pack- aged in thermally enhanced, compact over-molded Ball Grid Array (BGA) package suitable for automated assem- bly by standard surface mount equipment. The LTM8005 is RoHS compliant. 350mA at 30.5V to 35.5V LED String from 6V to 27V VIN (Boost) with Spread Spectrum APPLICATIONS n Wide Input Voltage Range: 5V to 38V n Supports Boost or SEPIC Power Topologies n Adjustable LED Current Up to 1.6A n 40V 10A Internal Power Switch n Wide Temperature Range: –40°C to 150°C n Input and Output Current Reporting n Internal Switch for PWM and Output Disconnect n Internal Spread Spectrum Frequency Modulation n 3000:1 True Color PWM™ Dimming n Open LED Protection with OPENLED Flag n Short-Circuit Protection and SHORTLED Flag n Soft-Start with Programmable Fault Restart Timer n 9mm × 11.25mm × 2.22mm BGA n High Power LED, High Voltage LED n Accurate Current-Limited Voltage Regulators All registered trademarks and trademarks are the property of their respective owners. LTM8005 8005 TA01a EN/UVLO OVLO PWM VREF CTRL1 CTRL2 VOUT ISN LED AUX FB ISMON RAMP SS VC RT GND OPENLED SHORTLED IVINP VIN IVINN SW DA LED STRING COUT 2× 4.7µF 50V L 8.2µH L: COILCRAFT XAL7030-822ME CIN, COUT: MURATA GRM31CR71H475KA12 PIN NOT USED IN THIS CIRCUIT: IVINCOMP 100k 93.1k 1M 19.1k 4.7k 23.2k f = 350kHz 10nF 6.8nF 0.1µF 0.1µF CIN 2× 4.7µF 50V 12.4k 374k VIN 6V TO 27V 18.7k |
同様の部品番号 - LTM8005 |
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同様の説明 - LTM8005 |
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