DC805A: Demo Board for the LTC3216 1A Low Noise High Current LED Charge Pump with Independent Torch/Flash Current Control.

The LT3479 is a current mode, fixed frequency step-up DC/DC converter with an internal 3A, 42V switch. Efficiencies of up to 89% can be achieved in typical applications. It features a programmable soft-start function to limit inductor current during start-up and inrush current protection to protect the LT3479 during shorts and line transients. Both inputs of the error amplifier are available to the user allowing positive and negative output voltages. Through an external resistor, the user can program the switching frequency from 200kHz to 3.5MHz. The low profile (0.75mm) 14-pin, 4mm ? 3mm DFN package provides excellent thermal performance in a small footprint. The LT3479 is also available in a thermally enhanced 16-pin TSSOP package.Applications High Power LED Driver DSL Modems Distributed Power

DC871A-A: Demo Board for the LTC3215 700mA Low Noise High Current LED Charge Pump.

DC902A-B: Demo Board for the LTC3214 500mA Camera LED Charge Pump.

The LT3492 is a triple output DC/DC converter designed to operate as a constant-current source and is ideal for driving LEDs. The LT3492 works in buck, boost or buck-boost mode. The LT3492 uses a fixed frequency, current mode architecture resulting in stable operation over a wide range of supply and output voltages. A frequency adjust pin allows the user to program switching frequency between 330kHz and 2.1MHz to optimize efficiency and external component size. The external PWM input provides 3000:1 LED dimming on each channel. Each of the three channels has a built-in gate driver to drive an external LED-disconnect P-channel MOSFET, allowing high dimming range. The output current range of each channel of the LT3492 is programmed with an external sense resistor. The CTRL pin is used to adjust the LED current either for analog dimming or over-temperature protection.Applications RGB Lighting Billboards and Large Displays Automotive and Avionic Lighting Constant-Current Sources

Demonstration circuit DC1666A is a synchronous four-switch buck-boost LED driver controller. It accepts an input voltage from 4.7V to 60V, and drives up to 25V of LEDs at 2A. DC1666A features both PWM and analog dimming of the LED string. It has an OPENLED flag that indicates when the LED string has been removed and it has a SHORTLED flag that indicates that the output has been shorted to GND. In both cases, the IC remains in control and well protected.

DC1947A: Demo Board for the LT3799-1 Offline Isolated Flyback LED Controller with Active PFC.

The ADD5211 is a four-string, white LED driver for backlight applications based on high efficiency, current mode, step-up converter technology. The boost controller drives an external MOSFET switch for step-up regulation from an input voltage of 4.5 V to 40 V and a pin adjustable operating frequency from 200 kHz to 1.2 MHz. An adjustable UVLO function is implemented to reduce input current during power-off.The ADD5211 provides four regulated current sinks for uniform brightness intensity. Each current sink can be driven from 40 mA to 200 mA; the LED driving current is pin adjustable using an external resistor. With an input PWM interface, the ADD5211 drives up to four parallel strings of multiple series connected LEDs.Additional features include LED short protection, LED open protection, boost output short protection, overvoltage protection, cycle-by-cycle current limit, and thermal shutdown for both the IC and the LED array. An open-drain fault output is also included. A programmable soft start is implemented to reduce inrush current during startup. Applications LCD monitor and TV LED backlights Industrial lighting

The AD9887A offers an analog interface receiver and a digital visual interface (DVI) receiver integrated on a single chip, supports high bandwidth digital content protection (HDCP), and is software and pin-to-pin compatible with the AD9887.ANALOG INTERFACEThe complete 8-bit, 170 MSPS, monolithic analog interface is optimized for capturing RGB graphics signals from personal computers and workstations. Its 170 MSPS encode rate capability and full-power analog bandwidth of 330 MHz support resolutions of up to 1600 × 1200 (UXGA) at 60 Hz. The interface includes a 170 MHz triple ADC with internal 1.25 V reference; a phase-locked loop (PLL); and programmable gain, offset, and clamp controls. The user provides only a 3.3 V power supply, analog input, and Hsync. Three-state CMOS outputs can be powered from 2.5 V to 3.3 V. The analog interface also offers full sync processing for composite sync and sync-on-green (SOG) applications. The AD9887A on-chip PLL generates a pixel clock from Hsync with output frequencies ranging from 12 MHz to 170 MHz. PLL clock jitter is typically 500 ps p-p at 170 MSPS. DIGITAL INTERFACEThe AD9887A contains a DVI 1.0-compatible receiver and supports resolutions up to 1600 × 1200 (UXGA) at 60 Hz. The receiver operates with true color (24-bit) panels in one or two pixel(s) per clock mode and features an intrapair skew tolerance of up to one full clock cycle. With the inclusion of HDCP, displays can receive encrypted video content. The AD9887A allows for authentication of a video receiver, decryption of encoded data at the receiver, and renewability of authentication during transmission, as specified by the HDCP v1.0 protocol. Fabricated in an advanced CMOS process, the AD9887A is provided in a 160-lead, surface-mount, plastic MQFP and is specified over the 0°C to 70°C temperature range. The AD9887A is also available in an RoHS compliant package.APPLICATIONS RGB graphics processing LCD monitors and projectors Plasma display panels Scan converters Microdisplays Digital TVs

DC507A: Demo Board for the LT1937 White LED Step-Up Converter in SC70 and ThinSOT.