ILD6150XUMA1

ILD6150XUMA1 is a hysteretic buck LED driver IC for driving high power LEDs in general lighting applications with average currents upto 1.5A. It is suitable for LED applications with a wide range of supply voltages from 4.5V to 60V. A multifunctional PWM input signal allows dimming of the LEDs with an analogue DC voltage or an external PWM signal. To minimize colorshifts of the LEDs an analogue PWM voltage is converted to an internal 1.6KHz PWM signal modulating the LED current. It incorporates an undervoltage lock-out that will shut down the IC when the minimum supply voltage threshold is exceeded. The over-current protection turns off the output stage once the output current is above the current threshold. It is used in applications such as LED driver for general lighting, retail, office and residential downlights, street and tunnel lighting, LED ballasts.

• Wide input voltage range from 4.5V to 60V, soft-start capability
• Capable to provide upto 1.5A average output current, analogue and PWM dimming possible
• Integrated PWM generator for analogue dimming input, undervoltage lockout
• Very low LED current drift over temperature, adjustable over-temperature protection
• Over-current protection, 1MHz maximum switching frequency
• PWM output current is -18µA typical at (VPWM =0V, TA = 25°C)
• PWM delay time is 0.8µs typical at (VPWM = rising to 2.5V, Vswitch = falling to 1V)
• Switch on resistance is 0.23 ohm typical at (ISW = 1A, TJ = 25°C)
• PWM signal frequency is 25KHz maximum at (TA = 25°C)
• Junction temperature range from -40°C to 150°Cz, DSO-8 package