The NCL30160DR2G is a 1.0A constant-current Buck Regulator for driving high power LEDs. The NFET hysteretic step-down driver operates with an input voltage range from 6.3 to 40V. The hysteretic control gives good power supply rejection and fast response during load transients and PWM dimming to LED arrays of varying number and type. A dedicated PWM input (DIM/EN) enables wide range of pulsed dimming and a high switching frequency up to 1.4MHz allows the use of smaller external components minimizing space. Protection features include resistor-programmed constant LED current, shorted LED protection, under-voltage and thermal shutdown.
Integrated 1.0A/50mR MOSFET
Short LED shutdown protection
No control loop compensation required
Adjustable LED current
Single pin brightness and enable/disable control using PWM
Supports all ceramic-output capacitors and capacitor-less outputs
Thermal shutdown protection
Capable of 100% duty cycle operation
Externally adjustable LED current
Dedicated EN/DIM pin
Ability to use with a wide range of power supplies
High efficiency and high power solution
High switching frequency allows the use of small inductors
Ease of design and minimal external components
Flexibility to design for different types and number of LEDs
(EN)
