A linear LED driver is a type of circuit that provides a constant current to drive light-emitting diodes (LEDs). The purpose of the linear LED driver is to regulate the current flowing through the LEDs, ensuring a stable and consistent brightness level while protecting the LEDs from voltage fluctuations.
Part Number: OZ8020
Function: Linear LED Driver
Package: TO-220 Type
Manufacturer: O2Micro
Images:
Description
OZ8020 is a linear LED driver for general lighting applications. It requires a minimum number of external components to operate, while providing application fl exibility to accommodate different system requirements. For application fl exibility, the device can be connected at either the anode or cathode terminal of the LED string. 0Z8020 operates in constant current mode, and the LED current is user-defi ned through an external resistor.
Unlike switching LED drivers, which use pulse-width modulation (PWM) to control LED brightness, linear LED drivers operate by using linear voltage regulation techniques. They essentially drop the excess voltage across a power transistor to regulate the current flowing through the LEDs. The excess voltage is converted into heat, making linear LED drivers less efficient than switching drivers, especially when driving high-power LEDs.
Features
• Controller for high brightness LEDs
• Supports up to 400V DC
• User-defi ned constant current control
• Supports LED current up to 100mA
• Thermal protection
Applications:
1. General Lighting
