TPS92512

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS92512, TPS92512HV SLVSCT1B – FEBRUARY 2015 – REVISED APRIL 2015 TPS92512 2.5A Buck LED Driver with Integrated Analog Current Adjust 1 Features 1 Integrated 200-mΩ High-Side MOSFET 4.5-V to 42-V Input Voltage Range (4.5 V to 60 V for the TPS92512HV) 0 V to 300 mV Adjustable Voltage Reference ±5% LED Current Accuracy 100-kHz to 2-MHz Switching Frequency Range Dedicated PWM Dimming Input Adjustable Undervoltage-Lock-Out Overcurrent Protection Overtemperature Protection MSOP-10 Package with PowerPAD™ 2 Applications Street Lighting Emergency/Exit Lighting General Industrial and Commercial Illumination Retail Lighting Appliance Lighting Transportation Lighting Channel Letters Light Bars 3 Description The TPS92512/HV are 2.5A step-down (buck) current regulators with an integrated MOSFET to drive high current LEDs. Available with 42 V and 60 V (HV) input ranges, these LED drivers operate at a user selected fixed-frequency with peak-current mode control and deliver excellent line and load regulation. The TPS92512/HV LED drivers feature separate inputs for analog and pulse width modulation (PWM) dimming for no compromise brightness control achieving contrast ratios of greater than 10:1 and greater than 100:1, respectively. The PWM input is compatible with low-voltage logic standards for easy interface to a broad range of microcontrollers. The analog LED curr...