STCS05DR

STCS05DR is a 0.5A max constant current LED driver. It is a BiCMOS constant current source designed to provide a precise constant current starting from a varying input voltage source. The main target is to replace discrete components solutions for driving LEDs in low voltage applications such as 5V, 12V or 24V giving benefits in terms of precision, integration, and reliability. The current is set with an external resistor up to 0.5A with a ±10% precision; a dedicated pin allows implementation of PWM dimming. An open-drain pin output provides information on load disconnection conditions. Applications include LED constant current supplying for varying input voltages, low voltage lighting, and small appliances LED lighting.

• Less than 0.5V voltage overhead, output current is 500mA typ at (TA = 25°C)
• PWM dimming pin, shutdown pin, feedback voltage is 100mV typ at (TA = 25°C)
• LED disconnection diagnostic, slope control with external cap
• Supply voltage range from 4.5V to 40V, drain leakage current is 40µA maximum
• Quiescent current (measured on VCC pin) is 1µA maximum at (shutdown mode; VCC = 5 to 12V)
• Dropout voltage (VDRAIN to GND) is 0.12A typical at (IO = 100mA, VCC = 12V)
• Junction temperature range from -40°C to 150°C
• SO-8 package