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TPS923610

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24.5V, 1.8A synchronous boost LED driver with 0.1% ratio PWM-controlled analog dimming

Product details

Topology Boost Vin (min) (V) 2.5 Vin (max) (V) 5.5 Vout (max) (V) 24.5 Vout (min) (V) 5 Iq (typ) (mA) 0.26 Features OVP, Over Current Protection, PWM control, Synchronous, Thermal shutdown, Under voltage lock out Operating temperature range (°C) -40 to 125 Dimming method Analog Number of channels 1 Rating Catalog
Topology Boost Vin (min) (V) 2.5 Vin (max) (V) 5.5 Vout (max) (V) 24.5 Vout (min) (V) 5 Iq (typ) (mA) 0.26 Features OVP, Over Current Protection, PWM control, Synchronous, Thermal shutdown, Under voltage lock out Operating temperature range (°C) -40 to 125 Dimming method Analog Number of channels 1 Rating Catalog
SOT-5X3 (DRL) 6 2.56 mm2 1.6 x 1.6
  • 2.5V to 5.5V input voltage
  • Integrated 280mΩ/600mΩ LS/HS switch FETs
  • Up to 95% efficiency
  • 130nA ultra-low shutdown current
  • High-accuracy PWM controlled analog dimming down to 0.1% dimming ratio
  • Drives LED string up to
    • 24.5V for TPS923610
    • 30V for TPS923611 and TPS923612
  • Switch current limit
    • 1.8A for TPS923610 and TPS923611
    • 2.25A for TPS923612
  • FCCM with 1.1MHz/400KHz switching frequency options
  • 200mV feedback voltage
  • Internal compensation
  • Protection Features
    • Over-voltage protection
    • Over-current protection
    • Under-voltage lockout protection
    • Thermal shutdown
  • 2.5V to 5.5V input voltage
  • Integrated 280mΩ/600mΩ LS/HS switch FETs
  • Up to 95% efficiency
  • 130nA ultra-low shutdown current
  • High-accuracy PWM controlled analog dimming down to 0.1% dimming ratio
  • Drives LED string up to
    • 24.5V for TPS923610
    • 30V for TPS923611 and TPS923612
  • Switch current limit
    • 1.8A for TPS923610 and TPS923611
    • 2.25A for TPS923612
  • FCCM with 1.1MHz/400KHz switching frequency options
  • 200mV feedback voltage
  • Internal compensation
  • Protection Features
    • Over-voltage protection
    • Over-current protection
    • Under-voltage lockout protection
    • Thermal shutdown

The TPS923610/1/2 is a synchronous boost LED driver that integrates both low-side and high-side switch FETs. It features an ultra-low 130nA shutdown current. The TPS923610/1/2 can drive single or parallel LED strings for LCD back lighting and general illumination.

The feedback voltage is regulated to 200mV and the output current is set by an external sensor resistor, RSET, as shown in the Simplified Schematic. During operation, a PWM signal applied to ADIM pin adjusts the feedback voltage proportionally to the PWM duty cycle, enabling precise analog dimming. The TPS923610/1/2 supports PWM controlled analog dimming with ratio as low as 0.1%, along with FCCM operation, avoiding audible noises at the output since current modulation remains purely analog.

The TPS923610/1/2 integrates over-voltage protection that disables the power stage to prevent the output voltage from exceeding the absolute maximum voltage rating during LED open conditions. The TPS923610/1/2 also provides over-current protection, under-voltage lockout protection and thermal shutdown protection.

The TPS923610/1/2 is a synchronous boost LED driver that integrates both low-side and high-side switch FETs. It features an ultra-low 130nA shutdown current. The TPS923610/1/2 can drive single or parallel LED strings for LCD back lighting and general illumination.

The feedback voltage is regulated to 200mV and the output current is set by an external sensor resistor, RSET, as shown in the Simplified Schematic. During operation, a PWM signal applied to ADIM pin adjusts the feedback voltage proportionally to the PWM duty cycle, enabling precise analog dimming. The TPS923610/1/2 supports PWM controlled analog dimming with ratio as low as 0.1%, along with FCCM operation, avoiding audible noises at the output since current modulation remains purely analog.

The TPS923610/1/2 integrates over-voltage protection that disables the power stage to prevent the output voltage from exceeding the absolute maximum voltage rating during LED open conditions. The TPS923610/1/2 also provides over-current protection, under-voltage lockout protection and thermal shutdown protection.
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* Data sheet TPS923610/1/2 30V Synchronous Boost LED Driver with Ultra-low Shutdown Current and 0.1%-ratio PWM Controlled Analog Dimming datasheet (Rev. A) PDF | HTML 28 Oct 2025
EVM User's guide TPS923610 LED Driver Evaluation Module PDF | HTML 16 Oct 2025
Certificate TPS923610EVM EU Declaration of Conformity (DoC) 10 Oct 2025

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Evaluation board

TPS923610EVM — TPS923610 evaluation module

The Texas Instruments TPS923610EVM evaluation module (EVM) helps designers evaluate the operation and performance of the synchronous boost LED (light emitting diode) driver TPS923610. The TPS923610EVM operates from 2.5V to 5.5V input, 3.6V nominal, and provides default 60mA constant current to (...)
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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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SOT-5X3 (DRL) 6 Ultra Librarian

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