ZXSC400E6TA

ZXSC400E6TA is an LED drive boost converter. Its low feedback voltage allows the current in a chain of LEDs to be set and accurately monitored with a single resistor giving minimal losses. Its excellent load and line regulation means that for the full supply range from lithium-ion cells, the LED current will typically change by less than 1%. Using high-efficiency Zetex switching transistors with ratings of 20V and higher allows many LEDs to be chained in series for the best LED current matching possible. It is used in applications such as white LED backlighting for colour LCD panels, general LED backlighting, high-performance white LED flashlights, and general LED driving from batteries.

• Supply voltage range from 1.8V to 8V
• Series connection for ultimate LED current matching
• Shutdown current is 4.5A typical at (VCC= 3V, T= -40°C to 85°C)
• Quiescent current is 220µA typical at (VCC = 8V, T= -40°C to 85°C)
• Efficiency is 80% typical at (30mA <gt/> ILED <gt/> 10mA)
• Reference tempco is 0.005%/C typical at (VCC= 3V, T= -40°C to 85°C)
• Operating frequency is 200KHz maximum at (VCC= 3V, T= -40°C to 85°C)
• Output current is 50mA minimum at (Vin <gt/> 2V, Vout = 10.5V)
• Line voltage regulation is 0.5%/V typical at (VCC= 3V, T= -40°C to 85°C)
• Operating temperature range from -40°C to +85°C, SOT23-6 package