TPS92512/13 Buck Current Regulator

Step-down (buck) current regulator LED driver with integrated analog current adjust from Texas Instruments

Image of TI's TPS92512 Buck Current RegulatorTexas Instruments' TPS92512/HV (2.5 A) and TPS92513/HV (1.5 A) are 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 TPS92512/13 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 current setpoint is adjustable from 0 V to 300 mV using the IADJ input with an external 0 V to 1.8 V signal.

For multi-string applications using two or more TPS92512/3 LED drivers, the internal oscillator can be overdriven by an external clock ensuring all of the converters operate at a common frequency thereby reducing the potential for beat frequencies and simplifying system EMI filtering. An adjustable input under-voltage lockout (UVLO) with hysteresis provides flexibility in setting start/stop voltages based upon supply voltage conditions.

TI Design Link: Proximity Sensing of up to 30CM Range with >15dB SNR and Robust Capacitive Touch Reference Design

TPS92512/13 Buck Current Regulator

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
IC LED CNV CONST CUR 2.5A 10MSOPTPS92512DGQRIC LED CNV CONST CUR 2.5A 10MSOP0View Details
IC LED DRIVER RGLTR DIM 10MSOPTPS92512DGQTIC LED DRIVER RGLTR DIM 10MSOP0View Details
IC LED DRIVER RGLTR DIM 10MSOPTPS92512HVDGQTIC LED DRIVER RGLTR DIM 10MSOP0View Details
IC LED CNV CONST CUR 2.5A 10MSOPTPS92512HVDGQRIC LED CNV CONST CUR 2.5A 10MSOP0View Details
IC LED DRIVER RGLTR DIMTPS92512EVM-001IC LED DRIVER RGLTR DIM8 - ImmediateView Details
IC LED DRIVER 1.5A 10MSOPTPS92513DGQTIC LED DRIVER 1.5A 10MSOP0View Details
IC LED DRIVER 1.5A 10MSOPTPS92513HVDGQTIC LED DRIVER 1.5A 10MSOP0View Details

Eval Board

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
EVAL BOARD FOR TPS92513TPS92513EVM-001EVAL BOARD FOR TPS925131 - ImmediateView Details
IC LED DRIVER RGLTR DIMTPS92512EVM-001IC LED DRIVER RGLTR DIM8 - ImmediateView Details
Published: 2015-09-30