General Description

The iML8690 is an LED current controller with line regulation compensation for operating over a wide alternative current (AC) voltage source range. It can drive an external N-channel power MOSFET to regulate the current flowing through a high voltage (HV) LED string.

The application of the iML8690 is configured in series with an LED string, working as a constant current sink with linear type over voltage protection (OVP), linear type over temperature protection (OTP),and line regulation compensation. It is suitable for applications with a rectified AC voltage source. The PCB design can be very compact to meet various shape requirements. It is especially suitable for replacing incandescent light bulb and linear type fluorescent lamps.

Features

Device

- 6V to 78V chip supply voltage range.

- Excellent system power regulation in ±10% AC mains fluctuation.

- Over temperature protection.

- Over voltage protection.

- Single board LED lighting solution available.

- DFN-2x2-6L packages.

System

- All solid state components.

- No electrolytic capacitor required.

- Scalable architecture allows optimization of performance vs. cost.

- Driver-on-board and chip-on-board design solution available which minimize process flow and assembly cost.

- High PF and Low THD performance.

- Flexible PCB layout options.

Applications

A series LED bulbs

LED light tube

LED down lights

LED ceiling lamps

AC LED lighting engines

Ordering Information