Product details

Input voltage (type) DC/DC Topology Buck Vin (Min) (V) 4.5 Vin (Max) (V) 60 Iout (Max) (A) 2.5 Iq (Typ) (mA) 0.337 Features Adjustable Switch Frequency, Enable/Shutdown, Integrated Switch, Synchronization Pin, Thermal Shutdown Operating temperature range (C) -40 to 125 Dimming method Analog, PWM
Input voltage (type) DC/DC Topology Buck Vin (Min) (V) 4.5 Vin (Max) (V) 60 Iout (Max) (A) 2.5 Iq (Typ) (mA) 0.337 Features Adjustable Switch Frequency, Enable/Shutdown, Integrated Switch, Synchronization Pin, Thermal Shutdown Operating temperature range (C) -40 to 125 Dimming method Analog, PWM
HVSSOP (DGQ) 10 9 mm² 3 x 3
  • 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
  • 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

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 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/HV 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.

The TPS92512 includes cycle-by-cycle overcurrent protection and thermal shutdown protection. It is available in a 10-pin HVSSOP PowerPAD™ package.

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 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/HV 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.

The TPS92512 includes cycle-by-cycle overcurrent protection and thermal shutdown protection. It is available in a 10-pin HVSSOP PowerPAD™ package.

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Technical documentation

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Type Title Date
* Data sheet TPS92512 2.5A Buck LED Driver with Integrated Analog Current Adjust datasheet (Rev. B) PDF | HTML 20 Apr 2015
Technical article Here's how body electronics and lighting technology are changing the driving experience 26 Sep 2016
Technical article LED brightness adjustment: high-frequency PWM dimming 26 Aug 2016
Technical article Driving LEDs in battery-powered portable projectors 25 Aug 2015
EVM User's guide TPS92512EVM-001 High-Current Buck Regulator With Analog and PWM Dimming for Hi (Rev. A) 14 Jul 2015
Technical article Take better selfies with innovative LED flashes 18 Nov 2014

Design & development

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Evaluation board

TPS92512EVM-001 — TPS92512 Buck Regulator with Analog and PWM Dimming

The TPS92512EVM is designed to accept an input voltage range of 12V to 60V and drive high current LED stacks at up to 1.5A while providing a small form factor. The LED stack can be between 9V and 24V depending on the input voltage range. The circuit can be dimmed using an analog current adjust (...)

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Simulation model

TPS92512 and TPS92512HV PSpice Transient Model TPS92512 and TPS92512HV PSpice Transient Model

Simulation model

TPS92512 TINA-TI Reference Design TPS92512 TINA-TI Reference Design

Simulation model

TPS92512 TINA-TI Transient Spice Model TPS92512 TINA-TI Transient Spice Model

Simulation tool

PSPICE-FOR-TI PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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