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TPS923655

ACTIVE

65-V, 4-A boost or buck-boost LED driver with inductive fast dimming and spread spectrum

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Data sheet

TPS923655

ACTIVE
Data sheet Order now

Product details

Input voltage type DC/DC Topology Boost, Buck-Boost Vin (min) (V) 4.5 Vin (max) (V) 65 Vout (max) (V) 65 Vout (min) (V) 5.5 Iout (max) (A) 4 Iq (typ) (mA) 2 Features Cycle-by-cycle over-current protection, Fault output, Integrated Switching FET, LED Open Detection, LED Short Detection, Programable Switching Frequency, Spread Spectrum, Thermal Foldback, Thermal shutdown Operating temperature range (°C) -55 to 125 Dimming method Analog, PWM, Hybrid, Flexible Number of channels 1 Rating Catalog
Input voltage type DC/DC Topology Boost, Buck-Boost Vin (min) (V) 4.5 Vin (max) (V) 65 Vout (max) (V) 65 Vout (min) (V) 5.5 Iout (max) (A) 4 Iq (typ) (mA) 2 Features Cycle-by-cycle over-current protection, Fault output, Integrated Switching FET, LED Open Detection, LED Short Detection, Programable Switching Frequency, Spread Spectrum, Thermal Foldback, Thermal shutdown Operating temperature range (°C) -55 to 125 Dimming method Analog, PWM, Hybrid, Flexible Number of channels 1 Rating Catalog
VSON (DMT) 14 13.5 mm² 4.5 x 3 WSON (DRR) 12 9 mm² 3 x 3
  • 4.5-V to 65-V wide input range
  • LED common cathode connection
  • Integrated 150-mΩ MOSFET with typical 3-A / 6.5-A current limit
  • Optional switching frequency: 100 kHz to 2.2 MHz
  • Spread spectrum for TPS923653 and TPS923655
  • Advanced dimming options:
    • Analog dimming (256:1)
    • Fast PWM dimming (150-ns pulse width)
    • Hybrid and flexible dimming (2,000:1 at 20-kHz PWM, 10,000:1 at 4-kHz PWM, 1,000,000:1 at 120-Hz PWM)
  • CC / CV charging mode
  • Full protection features:
    • LED open and short protection
    • Switching FET open and short protection
    • External component failure protection
    • Cycle-by-cycle current limit
    • Thermal shutdown
    • Fault output (open drain)
  • Configurable thermal foldback curve
  • VSON, WSON and SOT23 package options
  • 4.5-V to 65-V wide input range
  • LED common cathode connection
  • Integrated 150-mΩ MOSFET with typical 3-A / 6.5-A current limit
  • Optional switching frequency: 100 kHz to 2.2 MHz
  • Spread spectrum for TPS923653 and TPS923655
  • Advanced dimming options:
    • Analog dimming (256:1)
    • Fast PWM dimming (150-ns pulse width)
    • Hybrid and flexible dimming (2,000:1 at 20-kHz PWM, 10,000:1 at 4-kHz PWM, 1,000,000:1 at 120-Hz PWM)
  • CC / CV charging mode
  • Full protection features:
    • LED open and short protection
    • Switching FET open and short protection
    • External component failure protection
    • Cycle-by-cycle current limit
    • Thermal shutdown
    • Fault output (open drain)
  • Configurable thermal foldback curve
  • VSON, WSON and SOT23 package options

The TPS92365x family is a 2-A / 4-A non-synchronous Boost / Buck-Boost LED driver with 4.5-V to 65-V wide input range. By integrating the low-side NMOS switch, the device is capable of driving LEDs as well as charging batteries with high power density and high efficiency. The family also supports common cathode connection and single layer PCB design. The switching frequency is configurable from 100 kHz to 2.2 MHz with optional spread spectrum feature for better EMI performance.

The TPS92365x family supports four dimming options, including analog, PWM, hybrid and flexible dimming. Each dimming method can be configured through the PWM and ADIM input pins by means of simple high and low signals. The family adopts an adaptive off-time current mode control along with smart and accurate sampling to enable inductive fast dimming (IFD) and achieve high dimming accuracy.

The TPS92365x family also provides multiple systematic protections, including LED open and short, sense resistor open and short , configurable thermal foldback and thermal shutdown. A Fault output sends out acknowledge signals as soon as any fault condition is detected.

The TPS92365x family is a 2-A / 4-A non-synchronous Boost / Buck-Boost LED driver with 4.5-V to 65-V wide input range. By integrating the low-side NMOS switch, the device is capable of driving LEDs as well as charging batteries with high power density and high efficiency. The family also supports common cathode connection and single layer PCB design. The switching frequency is configurable from 100 kHz to 2.2 MHz with optional spread spectrum feature for better EMI performance.

The TPS92365x family supports four dimming options, including analog, PWM, hybrid and flexible dimming. Each dimming method can be configured through the PWM and ADIM input pins by means of simple high and low signals. The family adopts an adaptive off-time current mode control along with smart and accurate sampling to enable inductive fast dimming (IFD) and achieve high dimming accuracy.

The TPS92365x family also provides multiple systematic protections, including LED open and short, sense resistor open and short , configurable thermal foldback and thermal shutdown. A Fault output sends out acknowledge signals as soon as any fault condition is detected.
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TPS923654 ACTIVE 65-V, 4-A boost or buck-boost LED driver with inductive fast dimming 4-A output current

Technical documentation

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Type Title Date
* Data sheet TPS92365x 65-V 2-A / 4-A Boost / Buck-Boost LED Driver with Inductive Fast Dimming datasheet (Rev. A) PDF | HTML 26 Sep 2023
EVM User's guide TPS92365xEVM 65-V, 2-A/4-A Boost/Buck-Boost LED Driver Evaluation Module (Rev. A) PDF | HTML 05 Jun 2023
Certificate TPS923655DMTREVM EU RoHS Declaration of Conformity (DoC) 10 Jan 2023
Certificate TPS923655DRRREVM EU RoHS Declaration of Conformity (DoC) 10 Jan 2023

Design & development

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Evaluation board

TPS923655DMTREVM — TPS923655 evaluation module for 65-V, 4-A boost/buck-boost LED driver in VSON package

The TPS923655DMTREVM helps the user evaluate the features of the boost/buck-boost LED driver TPS923655 in VSON package. The TPS923655 is a 4-A non-synchronous boost/buck-boost LED driver with 4.5-V to 65-V wide-input voltage range, inductive fast dimming (IFD) and spread spectrum.
User guide: PDF | HTML
Not available on TI.com
Evaluation board

TPS923655DRRREVM — TPS923655 evaluation module for 65-V, 4-A boost/buck-boost LED driver in WSON package

The TPS923655DRRREVM helps the user evaluate the features of the boost/buck-boost LED driver TPS923655 in WSON package. The TPS923655 is a 4-A non-synchronous boost/buck-boost LED driver with 4.5-V to 65-V wide input voltage range, inductive fast dimming (IFD) and spread spectrum.

User guide: PDF | HTML
Not available on TI.com
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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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VSON (DMT) 14 Ultra Librarian
WSON (DRR) 12 Ultra Librarian
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