Taiwan Semiconductor has introduced the TS19503, a single-channel continuous-conduction, hysteretic mode converter LED driver IC, catering to the demanding requirements of automotive, industrial, and medical sectors. This innovative product boasts impressive features, marking a significant advancement in LED driver technology.
The TS19503 distinguishes itself with a wide input voltage range of 4.5V to 75V, facilitating its use across diverse power supply systems in automotive, industrial, and medical equipment. With a 2A output capability, it delivers sufficient power for driving LED lighting solutions in these applications.
Moreover, the driver achieves up to 97% efficiency, crucial for reducing energy consumption and heat generation, thus enhancing overall system performance and longevity. Its 2% accuracy over a broad range of external conditions ensures consistent and reliable operation, vital for critical applications like automotive and medical lighting.
Additionally, the TS19503 has undergone AEC-Q100 qualification, ensuring robustness and reliability under stringent automotive industry standards. This qualification instills confidence in its performance and durability, especially in harsh environmental conditions and high-stress applications.
Another notable feature is its utilization of hysteretic (bang-bang) control technique, enhancing accuracy while reducing the count of external components needed for implementation. This simplification of the design streamlines the overall system architecture and contributes to cost savings, making the TS19503 an appealing solution for manufacturers and designers.
In conclusion, Taiwan Semiconductor's TS19503 LED driver represents a significant technological leap in LED driver ICs, offering high efficiency, a wide input voltage range, reliability, and precision control. Its application in automotive, industrial, and medical sectors holds great promise for driving innovation and performance in lighting systems within these industries.
4.5 V to 75 V input voltage, best-in-class; one device handles many applications
Wide operating temperature range: -40°C to +125°C
Hysteretic (bang-bang) control delivers exceptional accuracy with minimal external parts
Low RDS(on) internal MOSFET enables up to 97% efficiency
PWM and analog dimming; 1000:1 dimming range
Adjustable frequency to 1 MHz enables design optimization to meet EMI requirements
MSOP-10EP package: heatsink on package improves thermal performance
Internal fault status flag provides added protection against damaging faults
Medical lighting applications where SELV and line isolation considerations are a concern
DC input industrial lighting
Automotive LED lighting applications:
High- and low-beam headlights
Daytime running lights
Turn indicators
Position indicator lights
Fog lights
ATV and four-wheel drive high-brightness lamps
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