Demonstration circuit 2020A is a 60VIN, 80VOUT LED driver. It generates its own PWMOUT waveform from its internal PWM generator for accurate PWM dimming with up to 33:1 brightness ratio. It accepts an input voltage from 5V to 60V and drives up to 67V of LEDs at 300mA (when PVIN is less than VLED). DC2020A features both PWM and analog dimming of the LED string. It has an OPENLED flag that indicates when the LED string has been removed. DC2020A features high efficiency at 350kHz switching frequency. At high LED string voltages up to 67V and 300mA of LED current, the single switch controller has 92% efficiency. The LT3955 has an internal 80V, 3.5A switch that simplifies the schematic and layout.

3.3 V Dual-Loop 50 Mbps to 3.3 Gbps Laser Diode Driver

4-Channel, LVDS, Dual-Output, Laser Diode Driver with Oscillator Features: Dual, current-controlled output current sources with 4 input channels TTL-selectable output Stable on-chip oscillators with independent frequency and amplitude control TTL- or LVDS-selectable write channel enables negative logic Independent TTL oscillator enables positive logic 170 mA minimum output current for the read channel 510 mA minimum output current for Write Channel 1 330 mA minimum output current for Write Channel 2 165 mA minimum output current for Write Channel 3 950 mA typical total output current Typical rise time/fall time of  0.8 ns Low power consumption Single 5 V power supply (±10%)

4.5A Monolithic LED Drivers with True Color PWM Dimming Features: True Color PWM™ Dimming Delivers Constant LED Color with Up to 3000:1 Range Wide Input Voltage Range: 2.8V to 36V 4.5A, 60mΩ, 42V Internal Switch Drives LEDs in Boost, Buck-Boost or Buck Modes Integrated Resistors for Inductor and LED Current Sensing Program LED Current: 100mA to 1050mA (LT3478-1) (10mV to 105mV)/RSENSE (LT3478) Program LED Current De-Rating vs Temperature Separate Inductor Supply Input Inrush Current Protection Programmable Soft-Start Fixed Frequency Operation from 200kHz to 2.25MHz Open LED Protection (Programmable OVP) Accurate Shutdown/UVLO Threshold with Programmable Hysteresis 16-Pin Thermally Enhanced TSSOP Package

SPECIALTY / SPECIALIZED INTERFACES;

LIGHTING DEVELOPMENT KITS;

Laser Drivers 3.3V 2.5Gbps SDH/ SONET Laser Driver

Laser Drivers Integrated Circuits (ICs)

EVAL KIT, CONSTANT CURRENT, LED DRIVER;

Laser Drivers 3.2Gbps Low-Power SFP Laser Driver