TPS92551 Series
450mA 23W constant current buck LED driver micro-module
Manufacturer: Texas Instruments
Catalog
450mA 23W constant current buck LED driver micro-module
Key Features
• Integrated All Power Components Including the Power InductorWide Input Voltage Range : 4.5V - 60VConstant Switching Frequency at 800kHzHigh Contrast Ratio (Minimum Dimming Current Pulse width < 16µs)Drives up to 16 LEDs in series at 60V input±3.5% Typical LED Current AccuracyLED Current Adjustable from 300mA to 450mAUp to 95% EfficiencyTPS92551 Modules can be Connected in Parallel for Higher Current OperationInput Under-Voltage Lock-Out (UVLO)Compatible with Ceramic and Low ESR CapacitorsLow Electro Magnetic Interference (EMI) Complies with EN55015 Standard EN55015, refer to andLED Open and Short Circuit ProtectionsThermal Shutdown and RoHS Compliant-40˚C to +125˚C Junction Temperature RangePackage Highlights7-Lead Easy-to-Use Package (Similar to TO-263)Single Exposed Die Attach Pad for Enhanced Thermal Performance10.2 x 13.8 x 4.6 mm PackageAll trademarks are the property of their respective owners.Integrated All Power Components Including the Power InductorWide Input Voltage Range : 4.5V - 60VConstant Switching Frequency at 800kHzHigh Contrast Ratio (Minimum Dimming Current Pulse width < 16µs)Drives up to 16 LEDs in series at 60V input±3.5% Typical LED Current AccuracyLED Current Adjustable from 300mA to 450mAUp to 95% EfficiencyTPS92551 Modules can be Connected in Parallel for Higher Current OperationInput Under-Voltage Lock-Out (UVLO)Compatible with Ceramic and Low ESR CapacitorsLow Electro Magnetic Interference (EMI) Complies with EN55015 Standard EN55015, refer to andLED Open and Short Circuit ProtectionsThermal Shutdown and RoHS Compliant-40˚C to +125˚C Junction Temperature RangePackage Highlights7-Lead Easy-to-Use Package (Similar to TO-263)Single Exposed Die Attach Pad for Enhanced Thermal Performance10.2 x 13.8 x 4.6 mm PackageAll trademarks are the property of their respective owners.
Description
AI
The 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. The TPS92551 provides a full turn-key, highly efficient solution for 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 Electro Magnetic Interference(EMI) complying with EN55015 standard. The module has fast control loop to realize fine LED current pulse yielding 256–step PWM dimming resolution at 240Hz for general lighting. Protection features include thermal shutdown, input under-voltage lockout, LED open-circuit and short-circuit protections. The TPS92551 Micro-Module is available in 7-pin PFM power package.
The 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. The TPS92551 provides a full turn-key, highly efficient solution for 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 Electro Magnetic Interference(EMI) complying with EN55015 standard. The module has fast control loop to realize fine LED current pulse yielding 256–step PWM dimming resolution at 240Hz for general lighting. Protection features include thermal shutdown, input under-voltage lockout, LED open-circuit and short-circuit protections. The TPS92551 Micro-Module is available in 7-pin PFM power package.
