The TMTech success develops the LED display application LED driver T6505A
T6505A is designed for LED displays. T6505A contains a serial buffer and data latches which convert serial input data into parallel output format. At T6505A output stage, sixteen regulated current ports are designed to provide uniform and constant current sinks for driving LEDs within a large range of Vf variations.
T6505A provides users with great flexibility and device performance while using T6505A in their system design for LED display applications, e.g. LED panels. Users may adjust the output current from 3 mA to 60 mA through an external resistor Rext, which is flexibility in controlling the light intensity of LEDs. T6505A guarantees to endure maximum 8V at the output port. The high clock frequency, 25 MHz, also satisfies the system requirements of high volume data transmission. The T6505A is available in SOP-24 and SSOP-24 lead-free package.

The TMTech success develops the bike lamp and the flashlight application LED driver T6327A/T6340A
T6327A/T6340A supplies the constant current for driving LED, embeds the diverse kinds of dimming mode, Single Flicker and Morse Code S.O.S Signal is easier to use to the different brightness LED applications. T6340A build in Low Voltage Detect and Indicate Function, may monitor the battery capacity in time. SOT-23,SOP-8 and TO-252 package is available.

White LED driver (T6311A)
Low-Dropout, Constant-Current White LED Bias Supply

The T6311A low-dropout bias supply for white LEDs is a high-performance alternative to the simple ballast resistors used in conventional white LED designs. The T6311A uses a single resistor to set the bias current for four LEDs, which are matched to 0.3%. The T6311A consumes only 40uA of supply current when enabled and 0.05uA when disabled. The T6311A advantages over ballast resistors include significantly better LED to LED bias matching, much lower bias variation with supply voltage variation, significantly lower dropout voltage, and in some applications, significantly improved efficiency. The T6311A is available in SOP-8 package.
Application field: LCD Panel Backlight, Lighting etc.

Reduced I/O 8-bit MCU


TMtech announces that its reduced I/O type MCU is ready to be shipped. The T81L0003A is an 8-bit high performance 8051-like MCU designed for the applications of toy, home appliance, automobile electronic equipment(parking detection controller) and other controllers. It supports larger memory size(8Kx8 program ROM, 128x8 data RAM), embedded multiplier, hardwire UART and more timers/counters.

White LED Driver


The T6309B is a step-up DC/DC converter that drives white LED with a constant current. The device can driver up to 3 series LEDs from a single-cell Li-Ion battery. Series connection of the LEDs provides constant LED current that results in uniform brightness. The T6309B is available in SOT23-6 package and intended for applications to cellular phones, digital cameras and PDAs