Linear Technology LT3956
Constant-Current and Constant-Voltage Converter
| Part No. | LT3956 |
|---|---|
| Datasheet | LT3956 Download |
| Manufacturer |  Linear Technology |
| Description | Constant-Current and Constant-Voltage Converter |
| Buy | Stock & Price |
FEATURES
80VIN, 80VOUT Constant-Current, Constant-Voltage ConverterDESCRIPTION
n 3000:1 True Color PWMTM Dimming n Wide Input Voltage Range: 4.5V to 80V n Output Voltage Up to 80V n Internal 3.3A/84V Switch n Constant-Current and Constant-Voltage Regulation n 250mV High Side Current Sense n Drives LEDs in Boost, Buck Mode, Buck-Boost Mode, SEPIC or Flyback Topology n Adjustable Frequency: 100kHz to 1MHz n Open LED Protection n Programmable Undervoltage Lockout with Hysteresis n Constant-Voltage Loop Status Pin n PWM Disconnect Switch Driver n CTRL Pin Adjusts High Side Current Sense Threshold n Low Shutdown Current: <1µA n Programmable Soft-Start n Available in the 36-Lead (5mm × 6mm) QFN PackageAPPLICATIONS
n High Power LED n Battery Charger n Accurate Current Limited Voltage Regulator The LT®3956 is a DC/DC converter designed to operate as a constant-current source and constant-voltage regulator. It is ideally suited for driving high current LEDs. It features an internal low side N-channel power MOSFET rated for 84V at 3.3A and driven from an internal regulated 7.15V supply.
