General lighting LED driver control chip solution

mSilica's general lighting LED driver chip is a highly integrated system chip that can drive multiple groups of white or other colored LEDs. These driver chips use external DC power converters, and can choose to use integrated or external MOSFETs based on the number of LEDs and the drive current. This requires only a minimum of external parts and is very efficient with appropriate energy-saving control technology; it also has very high accuracy current sources, linear current matching, fault detection, overheating protection, very wide dimming range, color temperature selection, low EMI and other features.

General lighting requires color temperature and gamma correction, temperature and LED aging correction, etc., in order to form a stable, high-quality lighting system. Temperature and optical feedback can be used to adjust the system and compensate for the changes in color temperature and brightness caused by the increase in LED junction temperature.

Dynamic white light mixing is the mixing of LEDs that emit cool white light and warm white light to obtain a wider dynamic range of white light. Similar dynamic color point mixing is also done with multiple color LEDs, such as dark blue, blue, green, true green, yellow, amber, red, etc.

The mSilica driver chip is designed with minimal external parts, which can reduce material costs, use smaller PCBs, and increase overall reliability.

mSilica's LED driver chips use electronic principles to solve general lighting problems and provide very stable and reliable system solutions. These driver chips control external DC power converters to solve the forward voltage problem of LEDs and save power as much as possible. When multiple chips are connected in series, multi-chip control can be formed to facilitate power control and form a digital I2C interface. The chip uses an external temperature sensor to provide better LED overheat protection and better system stability. Smaller heat sinks can also be used to reduce costs.

Product Features

Dynamic energy-saving control technology

LED overheat protection

· PWM control of individual LED serial

Connect multiple LED driver chips in series

Current control of individual LED strings

Stable fault detection

Allows high current LEDs to be serially split using multiple current sources

Allows LEDs to be connected in series using phase control to simplify power supply design

mSilica LED driver chips can load registers for all settings on the system. In addition, mSilica's LED driver chips also have a Smartwire? interface that can continuously transmit LED characteristic data between the series-connected LED driver chip and the DC power converter in real time. Smartwire can adjust and optimize the LED drive voltage according to environmental changes and LED aging.

There is internal memory that does not lose data, so the MSL416x does not need a microprocessor in the system to operate. This can reduce system cost and complexity. The outputs of multiple driver chips can be shared with each other to increase the current carrying capacity.

The specifications of mSilica's general lighting LED driver chip are as follows: