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TPS923651
  • TPS923651
  • TPS923651
  • TPS923651

TPS923651

ACTIVE

65V, 2A boost or buck-boost LED driver with analog or PWM dimming options

Texas Instruments TPS923651 Product Info

1 April 2026 3

Parameters

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

Features

Cycle-by-cycle over-current protection, Fast load transient support, Integrated Switching FET, LED Open Detection, LED Short Detection, Thermal shutdown

Operating temperature range (°C)

-40 to 85

Dimming method

Analog

Number of channels

1

Rating

Catalog

Package

HVSSOP (DGN)-8-14.7 mm² 3 x 4.9

Features

  • 4.5V to 65V wide input range
  • LED common cathode connection
  • Integrated 300mΩ MOSFET:
    • Typical current limit (1.6A / 3.2A)
    • Switching frequency (400kHz / 1MHz)
  • Advanced dimming options:
    • Analog dimming (200:1)
    • Fast PWM dimming (50ns pulse width)
  • 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
  • Package: WSON-8, HVSSOP-8, SOT583
  • 4.5V to 65V wide input range
  • LED common cathode connection
  • Integrated 300mΩ MOSFET:
    • Typical current limit (1.6A / 3.2A)
    • Switching frequency (400kHz / 1MHz)
  • Advanced dimming options:
    • Analog dimming (200:1)
    • Fast PWM dimming (50ns pulse width)
  • 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
  • Package: WSON-8, HVSSOP-8, SOT583

Description

The TPS92365x family is a 1A / 2A non-synchronous Buck LED driver with 4.5V to 65V wide input range. By integrating the low-side NMOS, the device is capable of driving LEDs with high power density and high efficiency. The device also supports common cathodeconnection and single layer PCB. The switching frequency is set at 400kHz or 1MHz.

The TPS92365x family support PWM dimming by configuring through the DIM input pins by means of simple high and low signals. The TPS92365x family support analog dimming by configuring through the DIM input pins by means of analog voltage signals. The device adopts an adaptive off-time current mode control along with smart and accurate sampling to enable fast PWM dimming and achieve high dimming ratio.

The TPS92365x family also provides multiple systematic protections, including LED open and short, switching FET open and short, sense resistor open and short, and thermal shutdown.

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