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LED Driver 2700uA Supply Current 28-Pin QFN EP T/R

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LT3932HUFD-1#TRPBF General Description

The LT3932 , featuring the Silent Switcher®architectureto minimize EMI/EMC emissions, utilizes fixed-frequency,peak current control and provides PWM dimming for astring of LEDs. The LED current is programmed by an analogvoltage or the duty cycle of pulses at the CTRL pin. Anoutput voltage limit can be set with a resistor divider tothe FB pin.

The switching frequency is programmable from 200kHz to2MHz by an external resistor at the RT pin or by an externalclock at the SYNC/SPRD pin. With the optional spreadspectrum frequency modulation enabled, the frequencyvaries from 100% to 125% to reduce EMI. The LT3932also includes a driver for an external, high side PMOS forPWM dimming and an internal PWM signal generator foranalog control of PWM dimming when an external signal isnot available. The LT3932-1 permits higher dimming ratios.

Additional features include an LED current monitor, anaccurate EN/UVLO pin threshold, open-drain fault reportingfor open-circuit and short-circuit load conditions, andthermal shutdown.

Analog Devices, Inc Inventory

Key Features

  • 5000:1/10000+:1 PWM Dimming at 100Hz (LT3932/LT3932-1)
  • 128:1 Internal PWM Dimming
  • Spread-Spectrum Frequency Modulation
  • Silent Switcher® Architecture for Low EMI
  • 3.6V to 36V Input Voltage Range
  • 0V to 36V LED String Voltage
  • 200kHz to 2MHz with SYNC Function
  • 99.9% Maximum Duty Cycle
  • 20:1 Analog or Duty Cycle LED Current Control
  • Open/Short LED Protection and Fault Indication
  • Accurate LED Current Sense with Monitor Output
  • Programmable UVLO
  • Thermally Enhanced 28-Pin (4mm × 5mm) QFN
Analog Devices, Inc Original Stock


  • Automotive Lighting
  • Industrial and General Purpose Lighting
  • Machine Vision Systems
Analog Devices, Inc Inventory


model LT3932HUFD-1#TRPBF package 28-Lead QFN (4mm x 5mm x 0.75mm w/ EP)
packingQty Reel,2500 packingOption Reel
packageType 05-08-1712 rohs roHSY
lifeCycle production tempRange -40 to 150C
Manufacturer Analog Devices Inc. Product Category LED Lighting Drivers
RoHS Details Series LT3932
Mounting Style SMD/SMT Package / Case QFN-28
Number of Outputs 1 Output Output Current 2 A
Input Voltage, Min 3.6 V Input Voltage, Max 36 V
Topology Buck Operating Frequency 200 kHz to 2 MHz
Minimum Operating Temperature - 40 C Maximum Operating Temperature + 150 C
Brand Analog Devices Input Voltage 3.6 V to 36 V
Number of Channels 1 Channel Product LED Drivers
Product Type LED Lighting Drivers Factory Pack Quantity 2500
Subcategory Driver ICs Supply Current - Max 2.7 mA
Type Synchronous Step Down LED Driver


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The delivery time is usually within 2-7 days, depending on the logistics provider and the area of delivery.

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Our policies and procedures are designed to ensure compliance with various quality specifications and to quickly resolve quality-related issues.

We promise to provide 365 days quality assurance service for all our products.

If you have any dissatisfaction with the quality of the product you received, you can contact us for a refund or exchange, as long as the product is kept in its original condition.


AVAQ determines and packages all devices based on electrostatic discharge (ESD) and moisture sensitivity level (MSL) protection requirements.
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LT3932HUFD-1#TRPBF Datasheet PDF

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Buying Guide

  • What is the lifespan of LT3932HUFD-1#TRPBF?

    The lifespan of LT3932HUFD-1#TRPBF depends on various factors such as the quality of materials used, operating conditions, and the manufacturer's recommended usage time. The datasheet provided by the manufacturer specifies the expected lifespan of the product.

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