MAX16819/20 High-Brightness LED Drivers
Analog Devices introduces its high-brightness step-down LED driver controllers with high-side current-sensing and rapid current-pulsing capability
Analog Devices' MAX16819/MAX16820, step-down constant-current high-brightness LED (HB LED) drivers provide a cost-effective solution for architectural and ambient lighting, LED bulbs such as MR16 and other LED illumination applications.
The MAX16819/MAX16820 operate from a 4.5 V to 28 V input voltage range and feature a 5 V/10 mA 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 MAX16819/MAX16820 are well suited for applications requiring a wide input voltage range. 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 and the MAX16820 features a 10% current ripple. These devices operate up to 2 MHz switching frequency, thus allowing for small component size.
The MAX16819/MAX16820 operate over the -40°C to 125°C automotive temperature range and are available in 3 mm x 3 mm x 0.8 mm, 6-pin TDFN packages.
Features | |
|
|
Applications | |
|
|
Evaluation Kit
Image | Manufacturer Part Number | Description | Available Quantity | Price | ||
---|---|---|---|---|---|---|
![]() | ![]() | MAX16820EVKIT+ | EVAL BOARD FOR MAX16820 | 1 - Immediate 10 - Factory Stock | $343.93 | View Details |
ICs
Image | Manufacturer Part Number | Description | Available Quantity | Price | ||
---|---|---|---|---|---|---|
![]() | ![]() | MAX16819ATT+T | IC LED DRIVER CTRLR PWM 6TDFN | 2325 - Immediate 12500 - Factory Stock | $25.27 | View Details |
![]() | ![]() | MAX16820ATT+T | IC LED DRIVER CTRLR PWM 6TDFN | 2834 - Immediate | $25.27 | View Details |