LT3517H: Suitable for boosting, step-down or antihypertensive - boosting large current LED

LT3517H: Suitable for boosting, buck or buck-boosting large current LED applications 45V, 1.5A LED driver provides 150 ° C highest junction temperature Milpitas, CAs, CA, Milpitas, CAs - April 2010 - Linear Technology Corporation launches the H-level version of the LT3517. The LT3517 is a high-pressure side current to detect the DC / DC converter designed to drive large current LEDs at a constant current. It has a 40V transient protection of 3V to 30V input voltage ranges to make the device ideal for a variety of applications, including cars, industrial and construction lighting. The H-level version can work with a junction temperature up to 150 ˚C, compared to the highest junction temperature of E and I version of 125 ˚C. All electrical specifications of E, I and H-level versions are the same. The H-level device is tested until the highest junction temperature of 150 ˚C is guaranteed, so that these devices are very suitable for automotive and industrial applications of high ambient temperatures. The LT3517 can drive up to 4 300mA white LEDs at a nominal 12V input, which is ideal for applications such as automotive display backlighting. The LT3517 detects the output current on the high voltage side of the LED, so as to achieve buck, buck-boost or boost configuration. The device provides up to 90% efficiency in the boost mode, using 4mm x 4mm QFN package. The LT3517 provides true color PWM (True Color PWMTM) dimming, which ensures a constant LED color at a dimming range of up to 5000: 1. For the requirement not so demanding dimming demand, you can provide 10: 1 analog dimming with a CTRL pin. Its fixed frequency, the current mode architecture provides stable operation within the wide power source and the output voltage range. The frequency mediation pin enables the user to set the frequency in the range of 250 kHz to 2.5 MHz to optimize efficiency while minimizing the size of the outer component. LT3517 Huf uses a 16-pin QFN package with spot supply. Purchase at 1,000 pieces, with $ 3.49 per piece. Performance Summary: LT3517H • True Color PWM 5000: 1 True Color PWM Dimming Comparison • 1.5A, 45V Internal Switch (LT3517) • 100mV High Press Side Current Detection • LED Opening Protection • Adjustable frequency: 250kHz to 2.5MHz • Wide Input Voltage Range: Working in the range of 3V to 30V to 40V • Working with boost, buck and buck - boost mode • Gate driver for PMOS LED disconnect • Constant current and constant voltage adjustment • CTRL pin provides 10: 1 simulation dimming • Low stop current: <1ua • Slim (4mm x 4mm) 16-pin QFN package, technology area Heilind won the title of "2017 Huaqiang Electronic Network Quality Supplier" Tas5634300W stereo PurePath (TM) HD digital input efficient power level TAS2557 5.7W D-class audio amplifier with H-class boost and speaker detection function Ruckus NetWorks appointed Deng Weidong for the general manager of China China Site Electronic Technology Forum - Power Technology Practice Seminar held in Wuhan