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Home » NEWEST Products » New by Manufacturer » Texas Instruments » TPS92550 / TPS92551 450mA LED Drivers - TI
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National Products from Texas Instruments TPS92550 / TPS92551 450mA Constant Current Buck LED Drivers

TI TPS92550 / TPS92551
450mA Constant Current Buck LED Drivers

National Products from Texas Instruments TPS92550 / TPS92551 450mA Constant Current Buck LED Drivers

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Texas Instruments TPS92550 Constant Current Buck LED Driver Micro-Module drives maximum 450mA LED current up to 10 LEDs in a single string (maximum 14W). It integrates all the power components including the power inductor. TI TPS92550 provides a full turn-key, highly efficient solution for a wide range of single string LED lighting applications with up to 95% power efficiency. It accepts an input voltage ranging from 4.5V to 36V and delivers a 350mA LED current as default. The LED current is adjustable from 300mA to 450mA by charging a single external resistor. The module operates at constant switching frequency (400kHz) with low EMI, complying with EN55015 standard. This module has fast control loop to realize fine LED current pulse, yielding 256-step PWM dimming resolution at 240Hz for general lighting.


TPS92550 Features
  • Integrated all power components including the power inductor
  • Wide input voltage range: 4.5V - 36V
  • Constant switching frequency at 400kHz
  • High contrast ratio (Minimum dimming current pulse width <16µs)
  • Drives up to 10 LEDs in series at 36V input
  • ±3.6% typical LED current accuracy
  • LED current adjustable from 300mA to 450mA
  • Up to 96% efficiency
  • Input Under-Voltage Lock-Out (UVLO)
  • Compatible with ceramic and low ESR capacitors
  • Low Electro Magnetic Interference(EMI) complies with EN55015 standard
  • LED open and short circuit protections
  • -40˚C to +125˚C junction temperature range
Applications
  • General Lighting
    • Desk Lamps
    • Cabinet Lamps
    • Decorative Lamps
    • Street Lamps
  • Architecture Lighting
    • Recess Lights
    • Spot Lights
    • Underwater Lights

TPS92550 Block Diagram
TPS92550 Block Diagram
National Products from Texas Instruments TPS92550 / TPS92551 450mA Constant Current Buck LED Drivers

View Product List

Additional Resources

TPS92551 Constant Current Buck LED Driver Micro-Module drives maximum 450mA LED current up to 16 LEDs in a single string (maximum 23W). It integrates all the power components including the power inductor. TI TPS92551 provides a full turn-key, highly efficient solution for a wide range of single string LED lighting applications with up to 95% power efficiency. It accepts an input voltage ranging from 4.5V to 60V and delivers a 350mA LED current as default. The LED current is adjustable from 300mA to 450mA by charging a single external resistor. The module operates at constant switching frequency (800kHz) with low EMI, complying with EN55015 standard. This module has fast control loop to realize fine LED current pulse, yielding 256-step PWM dimming resolution at 240Hz for general lighting.


TPS92551 Features
  • Integrated all power components including the power inductor
  • Wide input voltage range: 4.5V - 60V
  • Constant switching frequency at 800kHz
  • High contrast ratio (Minimum dimming current pulse width <16µs)
  • Drives up to 16 LEDs in series at 60V input
  • ±3.5% typical LED current accuracy
  • LED current adjustable from 300mA to 450mA
  • Up to 95% efficiency
  • Input Under-Voltage Lock-Out (UVLO)
  • Compatible with ceramic and low ESR capacitors
  • Low Electro Magnetic Interference (EMI) complies with EN55015 standard
  • LED open and short circuit protections
  • -40˚C to +125˚C junction temperature range
Applications
  • General Lighting
    • Desk Lamps
    • Cabinet Lamps
    • Decorative Lamps
    • Street Lamps
  • Architecture Lighting
    • Recess Lights
    • Spot Lights
    • Underwater Lights

TPS92551 Block Diagram
TPS92551 Block Diagram
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  • Lighting
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