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LT3478IFE-1#PBF The Analog Devices LT3478IFE-1#PBF is a monolithic LED driver IC designed for high power applications. It features a wide input voltage range and PWM dimming capabilities.
Mfr Part #:

LT3478IFE-1#PBF

Available from 1 distributors
Mfr Name: Analog Devices / Maxim Integrated
Analog Devices / Maxim Integrated
The Analog Devices LT3478IFE-1#PBF is a monolithic LED driver IC designed for high power applications. It features a wide input voltage range and PWM dimming capabilities.
✓ Total Stock: 374 pcs
$ Price Range: $0.17

LT3478IFE-1#PBF Available from 1 distributor

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✓ Non-Authorised
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Braun Electronic Components ✓
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374 pcs
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LT3478IFE-1#PBF Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Current
Dimming
Frequency
Internal Switch(s)
Mounting Type
Number of Outputs
Operating Temperature
Operating Voltage
Supplier Device Package
Supplier Package
Topology
Type
Voltage
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LT3478IFE-1#PBF Description

Short technical summary and product information.

The LT3478IFE-1#PBF from Analog Devices is a 4.5A monolithic step-up DC/DC converter designed to drive LEDs with constant current. It operates over a wide input voltage range of 2.8V to 36V and features true color PWM dimming for precise control.

 

This LED driver IC supports fixed frequency operation from 200kHz to 2.25MHz and includes an integrated 4.5A, 60mΩ internal switch. It can drive LEDs in boost, buck-boost, or buck modes. The device offers programmable LED current control and de-rating versus temperature, along with inrush current protection and programmable soft-start.

 

The LT3478IFE-1#PBF is housed in a 16-pin thermally enhanced TSSOP package with exposed pad, suitable for surface mount applications. Its design makes it ideal for automotive lighting, automotive TFT LCD backlights, and other high power LED driver applications requiring uniform brightness and accurate color.

 

Key electrical specifications include a switch current of 4.5A, output voltage up to 42V, and programmable LED current from 100mA to 1050mA. The operating temperature range is -40°C to 125°C (TJ).

LT3478IFE-1#PBF Quick Information

Product Type: LED Driver
Series: LT3478
Canonical Name: LT3478IFE-1#PBF LED Driver
Subcategory: LED Drivers

LT3478IFE-1#PBF Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

LT3478IFE-1#PBF Estimated Pricing

Qty Low High
1+ $0.17 $0.17

Estimated market price range - modelled values for guidance only, not live distributor offers.

LT3478IFE-1#PBF Features

  • Drives LEDs with constant current.
  • Wide 2.8V to 36V input voltage range.
  • True Color PWM dimming up to 3000:1.
  • Integrated 4.5A, 60mΩ switch.
  • 16-pin thermally enhanced TSSOP package.

LT3478IFE-1#PBF Applications

  • Automotive lighting applications.
  • Automotive TFT LCD backlights.
  • High power LED driver circuits.
  • Uniform brightness LED arrays.

LT3478IFE-1#PBF FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range of the LT3478IFE-1#PBF?

2.8V to 36V.

What package is the LT3478IFE-1#PBF available in?

16-TSSOP-EP (16-lead TSSOP with exposed pad).

What is the operating temperature range of the LT3478IFE-1#PBF?

-40°C to 125°C (junction temperature).

Does the LT3478IFE-1#PBF support dimming?

Yes, it supports PWM dimming.

What is the switching frequency range of the LT3478IFE-1#PBF?

200kHz to 2.25MHz.

What LED current range can the LT3478IFE-1#PBF drive?

Up to 1.05A (LT3478-1 version) or programmed via external sense resistor.

What topologies does the LT3478IFE-1#PBF support?

Step-down (buck) and step-up (boost).

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