TS19503 2 A LED Driver

Taiwan Semiconductor's TS19503 is a single-channel continuous-conduction, hysteretic mode converter LED driver IC. Featuring best-in-class 4.5 V to 75 V input and 2 A output, the TS19503 offers up to 97% efficiency and 2% accuracy over a wide range of external conditions. AEC-Q100 qualification assures high reliability while the hysteretic (bang-bang) control technique provides high accuracy and reduced external parts count.

Features

• 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 R_DS(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

Applications

• 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
• Medical lighting applications where SELV and line isolation considerations are a concern
• DC input industrial lighting