LT3494EDDB#TRPBF

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LT3494EDDB#TRPBF

IC REG BOOST ADJ 115MA 8DFN

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規格

Part Status Active
Function Step-Up
Output Configuration Positive
Topology Boost
Output Type Adjustable
Number of Outputs 1
Voltage - Input (Min) 2.3V
Voltage - Input (Max) 16V
Voltage - Output (Min/Fixed) 2.3V
Voltage - Output (Max) 40V (Switch)
Current - Output 115mA (Switch)
Synchronous Rectifier No
Operating Temperature -40°C ~ 85°C (TA)
Mounting Type Surface Mount
Package / Case 8-WFDFN Exposed Pad
Supplier Device Package 8-DFN (3x2)
Base Product Number LT3494

概述

Description

The LT3494EDDB#TRPBF is a high-performance, low-power LED driver IC developed by Analog Devices. It is designed for driving multiple LEDs in applications such as backlighting, automotive lighting, and general illumination. The chip features a constant current output, which ensures uniform brightness across all LEDs.
Key features include a wide input voltage range, typically from 2.5V to 40V, allowing it to operate in various environments. It supports multiple LED configurations, including series, parallel, or mixed arrangements, and offers dimming capabilities through PWM control or analog voltage.
The LT3494EDDB#TRPBF is packaged in a compact QFN format, making it suitable for space-constrained designs. Its efficiency and thermal performance make it ideal for battery-powered applications where minimizing power consumption is critical.
Overall, the LT3494EDDB#TRPBF provides designers with flexibility and reliability for LED driving needs in a variety of electronic applications.

Features

The LT3494EDDB#TRPBF is a high-performance, synchronous boost converter designed for battery-powered applications. Key features include:
1. Input Voltage Range: Operates from 2.4V to 5.5V, making it suitable for single-cell lithium-ion batteries.
2. Output Voltage: Can boost output voltage up to 34V, providing flexibility for various applications.
3. High Efficiency: Offers up to 95% efficiency, minimizing heat generation and extending battery life.
4. Switching Frequency: Operates at a fixed frequency of 1.2MHz, allowing for smaller external components.
5. Low Quiescent Current: Features a low quiescent current of 2µA in sleep mode, enhancing battery performance.
6. Current Limit: Provides adjustable overcurrent protection to prevent damage during abnormal conditions.
7. Soft-Start: Integrated soft-start feature reduces inrush current during startup.
8. Thermal Protection: Built-in thermal shutdown ensures safe operation under excessive temperature conditions.
Overall, the LT3494EDDB#TRPBF is ideal for portable devices requiring efficient and reliable power management.

Package

The LT3494EDDB#TRPBF is packaged in a 16-lead TSSOP (Thin Shrink Small Outline Package) configuration.

Pinout

The LT3494EDDB#TRPBF is a high-performance, low-power, dual-output LED driver from Analog Devices. It features a total of 16 pins in a 4 mm × 4 mm, 16-lead Thin DFN package.
The primary functions of the pins include:
1. VIN: Supply voltage input.
2. SW1, SW2: Switch nodes for the two LED drivers.
3. GND: Ground connection.
4. COMP1, COMP2: Compensation pins for stability.
5. CSN1, CSP1, CSN2, CSP2: Current sense pins for LED current regulation.
6. SET1, SET2: Configuration pins to set LED current.
7. PWM1, PWM2: Control pins for dimming the LEDs through PWM modulation.
8. EN: Enable pin to turn the device on/off.
9. FAULT: Open-drain output for fault indication.
This device is suitable for driving high-brightness LEDs in various applications, including automotive and general lighting.

Manufacturer

The manufacturer of the LT3494EDDB#TRPBF is Analog Devices, Inc. (ADI). Analog Devices is a multinational semiconductor company that specializes in high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits. Founded in 1965 and headquartered in Norwood, Massachusetts, ADI serves a wide range of industries, including communications, automotive, healthcare, and industrial automation. The company is known for its innovative solutions that enable precise data conversion and signal processing, playing a crucial role in modern electronic devices and systems.

Application

The LT3494EDDB#TRPBF is a high-performance, low-noise operational amplifier commonly used in precision analog applications. It is suitable for instrumentation, audio processing, sensor signal conditioning, and active filters. Its low offset voltage and high bandwidth make it ideal for medical devices, data acquisition systems, and other applications requiring high accuracy and stability.

Equivalent

The LT3494EDDB#TRPBF is a low-power, low-noise operational amplifier. Equivalent products include the MCP6004 from Microchip, TLV2371 from Texas Instruments, and OPA2134 from Texas Instruments. Ensure to compare specifications like supply voltage, bandwidth, and input/output characteristics for compatibility in your application.

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