MAX16819ATT+T

The MAX16819ATT+T is a 2MHz high brightness LED driver with high-side current sense and 5000:1 dimming in 6 pin TDFN package. It is a step down constant current high brightness LED (HB LED) driver provides a cost effective solution for architectural and ambient lighting, LED bulbs such as MR16 and other LED illumination applications. It operates from a 4.5V to 28V input voltage range and has 5V/10mA on-board regulator. A high-side current sense resistor adjusts the output current and a dedicated PWM input (DIM) enables a wide range of pulsed dimming. The high-side current sensing and an integrated current setting circuitry minimize the number of external components while delivering an LED current with ±5% accuracy. A hysteretic control algorithm ensures excellent input supply rejection and fast response during load transients and PWM dimming. The MAX16819 features a 30% inductor current ripple. This device operatesup to 2MHz switching frequency thus allowing for small component size.

• Output power is 25W
• Operating temperature range from -40°C to 125°C
• Maximum dimming frequency is 20KHz
• Supply current is 425µA
• Undervoltage lockout hysteresis is 0.50.5

Anwendungen

Power-Management, Tragbare Geräte, Industrie

Hinweise

Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts

Hinweise

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party