General Description：
The CN5820 is a switch-mode step-down constant-current high-brightness LED (HB LED) driver, the device provides a cost effective solution for automotive interior/exterior lighting, architectural and ambient lighting, LED bulbs such as MR16 and other LED illumination applications.
The CN5820 operates from a 4V to 28V input voltage range and features a 5V/5mA on-board regulator. A high-side current-sense resistor adjusts the LED current and a dedicated input (DIM) enables PWM dimming and analog dimming.

FEATUREs：
● High-Side Current Sense
● Dedicated Dimming Control Input
● 20kHz Maximum Dimming Frequency
● Hysteretic Control: No Compensation
● Up to 1MHz Switching Frequency
● ±5% LED Current Accuracy
● Adjustable Constant LED Current
● 4V to 28V Input Voltage Range
● Over 25W Output Power
● 5V, 5mA On-Board Regulator
● Operating Temperature Range ： －40°C to 85°C
● Lead Free, rohs-Compliant and Halogen Free

APPLICATIONs：
● Architectural, Industrial, and Ambient Lighting
● Automotive RCL, DRL, and Fog Lights
● MR16 and Other LED Bulbs
● Indicators and Emergency Lighting