TSMC launched a new process LED drive IC operating voltage up to 60V

TSMC 15 launch modular BCD (Bipolar, CMOS DMOS) process, will be able to produce high voltage integrated LED driver IC products for customers.

This new BCD technology features 12 volts to 60 VOLTS voltage range, can support a variety of applications, including: LED LCD flat display backlight, general lighting and automotive lighting, LED display, and the process across 0.6 microns to 0.18 microns, and a plurality of digital core modules available choose suitable for different digital control circuit gate density. In addition, CyberShuttleTM co pilot service is also available to support the preliminary functional verification of 0.25 m with a 0.18 micron process.

Through a number of integrated features provided by the new process, the system can reduce the material list. High voltage DMOS MOSFET switch not only provides integration, reducing the number of components of zero, other components can be integrated include: high voltage bipolar transistor, high voltage / high precision capacitor, high resistance silicon zener diode (Zenerdiode), can also reduce the number of external components, and significantly reduce the circuit board the area.

DMOS technology supports integrated circuit manufacturing professional leading drain to source resistance (Rdson) effect (for example: 60V NLDMOS for a specific element, when BV>80V, Rdson 72mohm-mm2) and its high current driving ability can be optimized by the size of the element to improve power efficiency; reliable safe operating area the (SOA) can also let the power switch and drive circuit is more ideal; more detailed analysis can be used as a useful reference to IC design can achieve the chip size and the best design budget.

On the COMS side, the 5 V operating voltage can support duty cycle pulse width modulation (PulseWidthModulationcontroller) design, while the 2.5 V and 1.8 V logic core, the general use of the higher level of digital integration. In addition, the memory options that are compatible with logical lines, single - write, and multi - write can also be used to enhance the use of digital programming.

TSMC electronic industrial development department director Liu Xinsheng pointed out that the driving device integration, the new LED driver BCD IC technology is very sophisticated technology, the related process design kit (PDKs) on SPICE model with high accuracy and precision, provide more convenient single chip design. In addition, MismatchingModEL can help improve the accuracy of the current design of multi-channel LED driver.