Datasheet Linear Technology LT3955IUHE#PBF — Ficha de datos

LT3955
60VIN LED Converter with
Internal PWM Generator
Features Description 3000:1 True Color PWMв„ў Dimming for LEDs
nn Wide V Range: 4.5V to 60V
IN
nn Rail-to-Rail Current Sense Range: 0V to 80V
nn Internal 80V/3.5A Switch
nn Programmable PWM Dimming Signal Generator
nn Constant Current (В±3%) and Constant-Voltage
(В±2%) Regulation
nn Accurate Analog Dimming
nn Drives LEDs in Boost, SEPIC, CUK, Buck Mode,
Buck-Boost Mode, or Flyback Configuration
nn Output Short-Circuit Protected Boost
nn Open LED Protection and Reporting
nn Adjustable Switching Frequency: 100kHz to 1MHz
nn Programmable V UVLO with Hysteresis
IN
nn C/10 Indication for Battery Chargers
nn Low Shutdown Current: 1.2V or ILED = (CTRL – 100mV)/(4 RLED). If ISN is greater than INTVCC, input bias current
is typically 20ОјA flowing into the pin. Below INTVCC, ISN
bias current decreases until it flows out of the pin. …