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TPS923653

ACTIVE

65V, 2A boost or buck-boost LED driver with inductive fast dimming and spread spectrum

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Data sheet

TPS923653

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) 2 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) -40 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) 2 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) -40 to 125 Dimming method Analog, PWM, Hybrid, Flexible Number of channels 1 Rating Catalog
VSON (DMT) 14 13.5 mm² (4.5 mm × 3 mm) WSON (DRR) 12 9 mm² (3 mm × 3 mm) SOT-23-THN (DYY) 14 13.692 mm² (4.2 mm × 3.26 mm)
  • 4.5V to 65V wide input range
  • LED common cathode connection
  • Integrated 150mΩ MOSFET with typical 3A / 6.5A / 8.5A current limit
  • Optional switching frequency: 100kHz to 2.2MHz
  • Spread spectrum for TPS923653 and TPS923655
  • Advanced dimming options:
    • Analog dimming (256:1)
    • Fast PWM dimming (150ns pulse width)
    • Hybrid and flexible dimming (2,000:1 at 20kHz PWM, 10,000:1 at 4kHz PWM, 1,000,000:1 at 120Hz 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
  • 4.5V to 65V wide input range
  • LED common cathode connection
  • Integrated 150mΩ MOSFET with typical 3A / 6.5A / 8.5A current limit
  • Optional switching frequency: 100kHz to 2.2MHz
  • Spread spectrum for TPS923653 and TPS923655
  • Advanced dimming options:
    • Analog dimming (256:1)
    • Fast PWM dimming (150ns pulse width)
    • Hybrid and flexible dimming (2,000:1 at 20kHz PWM, 10,000:1 at 4kHz PWM, 1,000,000:1 at 120Hz 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 2A / 4A non-synchronous Boost / Buck-Boost LED driver with 4.5V to 65V 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 100kHz to 2.2MHz 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 2A / 4A non-synchronous Boost / Buck-Boost LED driver with 4.5V to 65V 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 100kHz to 2.2MHz 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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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet TPS92365x 65V 2A / 4A Boost / Buck-Boost LED Driver with Inductive Fast Dimming datasheet (Rev. B) PDF | HTML Feb 25, 2025
Application note Optimizing Illumination LED Driver Design for Best Dimming Performance with TPS92205x and TPS92365x PDF | HTML Jul 20, 2026
Certificate TPS923653DYYREVM EU RoHS Declaration of Conformity (DoC) Jan 10, 2023

Design & development

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

Evaluation board

TPS923653DYYREVM — TPS923653DYYR evaluation module for SOT-23-THN package

The TPS923653DYYR evaluation module (EVM) helps designers evaluate the operation and performance of the TPS92365x non-synchronous boost/buck-boost switching regulator designed for high-current and ultra-deep dimming ratio LED driver applications. The TPS92365x is a 2A/4A non-synchronous (...)
User guide: PDF | HTML
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Evaluation board

TPS923655DMTREVM — TPS923655DMTR evaluation module for VSON package

The TPS923655DMTR evaluation module (EVM) helps designers evaluate the operation and performance of the TPS92365x non-synchronous boost/buck-boost switching regulator designed for high-current and ultra-deep dimming ratio LED driver applications. The TPS92365x is a 2A/4A non-synchronous (...)
User guide: PDF | HTML
Supported products & hardware
In stock
Limit:
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Evaluation board

TPS923655DRRREVM — TPS923655DRRR evaluation module for WSON package

The TPS923655DRRR evaluation module (EVM) helps designers evaluate the operation and performance of the TPS92365x non-synchronous boost/buck-boost switching regulator designed for high-current and ultra-deep dimming ratio LED driver applications. The TPS92365x is a 2A/4A non-synchronous (...)
User guide: PDF | HTML
Supported products & hardware
In stock
Limit:
??asset.out-of-stock-ti_en_US??
Not available
Package Pins CAD symbols, footprints & 3D models
VSON (DMT) 14 Ultra Librarian
WSON (DRR) 12 Ultra Librarian
SOT-23-THN (DYY) 14 Ultra Librarian
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