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Product details

Parameters

Input voltage (type) DC/DC Vin (Min) (V) 4.5 Vin (Max) (V) 42 Iout (Max) (A) 2.5 Vout (Min) (V) 0.2 Vout (Max) (V) 40 Regulated outputs (#) 1 Topology Buck Dimming method Analog, PWM Power factor correction (Min) Features Adjustable Switch Frequency, Enable/Shutdown, Integrated Switch, Synchronization Pin, Thermal Shutdown Operating temperature range (C) -40 to 125 Switching frequency (Min) (kHz) 100 Switching frequency (Max) (kHz) 2000 Iq (Typ) (mA) 0.337 Vref (V) 0.2 open-in-new Find other General lighting LED drivers

Package | Pins | Size

HVSSOP (DGQ) 10 15 mm² 3 x 4.9 open-in-new Find other General lighting LED drivers

Features

  • 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
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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 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

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 7
Type Title Date
* Datasheet TPS92512 2.5A Buck LED Driver with Integrated Analog Current Adjust datasheet (Rev. B) Apr. 20, 2015
White papers Common LED Functions and LED Driver Design Considerations Sep. 21, 2020
Technical articles Here's how body electronics and lighting technology are changing the driving experience Sep. 26, 2016
Technical articles LED brightness adjustment: high-frequency PWM dimming Aug. 26, 2016
Technical articles Designing an IoT modular light – part 2 Jun. 24, 2016
Technical articles Designing an IoT modular light Jun. 17, 2016
User guides TPS92512EVM-001 High-Current Buck Regulator With Analog and PWM Dimming for Hi (Rev. A) Jul. 14, 2015

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
document-generic User guide
49
Description

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 (...)

Features
  •  High Current Buck LED Driver
  •  12V to 60V Nominal Input
  •  Analog Dimming
  •  PWM Dimming
  •  Small Form Factor

Design tools & simulation

SIMULATION MODELS Download
SLUM449.ZIP (104 KB) - PSpice Model
SIMULATION MODELS Download
SLVMBA2.TSC (1495 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SLVMBA3.ZIP (87 KB) - TINA-TI Spice Model
SIMULATION TOOLS Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

Reference designs

REFERENCE DESIGNS Download
4x 16-W LED driver reference design
PMP10222 The PMP10222 reference design provides a solution for 4 individual, synchronizable and dimmable LED Drivers, which convert an input voltage of 30V-40V to 1A output current with a maximum output voltage of 16V.
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
HVSSOP (DGQ) 10 View options

Ordering & quality

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