ADDtek launched only two pin LED protection IC

In LED lighting and LED backlight applications, often require multiple LED Series in order to simplify the circuit and reduce costs. However, any LED damage and open circuit, will cause the entire LED string can not work, the overall performance of the product has a serious impact.

Professional analog IC design company ADDtek (Guang Peng Technology) to obtain the United States patent technology, launched the world's smallest number of feet IC - only two pin LED protection IC - AMC7169 and A716. Not only solve the problem of LED series, but also protect the LED from excessive current or reverse current damage.

The ADDtek LED protects the IC and connects the LED at both ends of the IC when the LED is working to protect it from entering the monitoring mode without affecting the system operation.

When the LED is damaged and open, causing both ends of the voltage rises to protect IC built-in voltage protection point, IC will enter the protected mode, the original should be the current through the LED guide through the protection of IC to the next LED, let LED on the rest of the LED can still work normally, when the voltage at both ends of the IC will be far more protection the forward voltage is lower than LED, in order to reduce the waste of energy.

When the assembly error will be connected to the LED module and the drive circuit module polarity reverse, the protection of IC will enter the reverse mode, guide the reverse current flow through the protection of IC to avoid damage to LED.

Using 2mm 2mm x 0.8mm DFN package AMC7169 (500mA), A716 (350mA) ESD protection capacity of HBM 2KV, can protect the power of less than 2W LED, can protect 3W and 5W products will be launched in.

ADDtek website http://www.addmtek.com

Source: Electronic Engineering album