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TS19371CX6 Datasheet(PDF) 1 Page - Taiwan Semiconductor Company, Ltd |
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TS19371CX6 Datasheet(HTML) 1 Page - Taiwan Semiconductor Company, Ltd |
1 / 8 page TS19371CX6 Taiwan Semiconductor 1 Version: J1708 Boost (Step-up) WLED Driver with OVP DESCRIPTION The TS19371 is a step-up DC/DC converter specifically designed to drive white LEDs with a constant current. The device can drive up to 126 LEDs (9S14P) from a 12V supply. The output capacitor can be as small as 4.7µF, saving space versus alternative solutions. A low 95mV feedback voltage minimizes power loss for better efficiency. Additional feature include over output voltage limiting when LEDs are disconnected. The TS19371 switches at a fixed frequency of 1.2MHz, allowing the use of tiny, low profile inductors and capacitors to minimize footprint and cost in space consideration applications for cellular phone backlighting or other hand held equipment. FEATURES ● Inherently Matched LED Current ● High Efficiency: 89% Typical ● Drives Up to 9 LEDs Series @ Vin 9~15V ● Drives Up to 126 LEDs (9S14P) @ Vin 12~15V ● Drives Up to 6 (1W) LEDs Series @ Vin 12V ● Over Output Voltage Protection 30V ● Fast 1.2MHz Switching Frequency ● Requires Only 4.7µF Output Capacitor ● PWM Dimming Control 1kHz to 10kHz ● Analog Dimming Control ● Compliant to RoHS Directive 2011/65/EU and in accordance to WEEE 2002/96/EC. ● Halogen-Free according to IEC 61249-2-21 APPLICATION ● Cellular Phones ● Portable Electronics Devices PDA, GPS ● LCD Display Module ● White LED Backlighting ● MR-16 Lighting SOT-26 Pin Definition: 1. SW 2. GND 3. FB 4. CTRL 5. OVP 6. VIN Notes: MSL 1 (Moisture Sensitivity Level) per J-STD-020 TYPICAL APPLICATION CIRCUIT |
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