LM3644YFFR

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LM3644YFFR

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IC LED DRV RGLTR I2C 12DSBGA

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  • メーカー品番 #LM3644YFFR

  • 在庫状況5596

365 日間品質保証

7*24 日間の品質保証

90-時間単位のサービス保証

1日間のアフターサービス保証

仕様

属性 値
Part Status Active
Type DC DC Regulator
Topology Step-Up (Boost)
Internal Switch(s) Yes
Number of Outputs 2
Voltage - Supply (Min) 2.5V
Voltage - Supply (Max) 5.5V
Current - Output / Channel 1.5A
Frequency 2MHz, 4MHz
Dimming I2C
Applications Camera Flash
Operating Temperature -40°C ~ 85°C (TA)
Mounting Type Surface Mount
Package / Case 12-UFBGA, DSBGA
Supplier Device Package 12-DSBGA
Base Product Number LM3644

概要

Description

The LM3644YFFR is a high-efficiency, multi-functional LED driver IC from Texas Instruments. It is designed to manage high-power white LEDs, typically used in flash and lighting applications for mobile devices such as smartphones and tablets. The device operates with a high current output, supporting flash currents up to 1.5A and torch currents up to 328mA, making it suitable for various lighting needs.
Key features of the LM3644YFFR include a flexible I²C-compatible interface for easy control, programmable current settings, and the ability to operate in flash, torch, and indicator modes. It incorporates a synchronous boost converter, ensuring efficient power delivery while minimizing heat generation in small, compact applications. The device also includes safety features such as over-voltage protection, LED short protection, and thermal shutdown to ensure reliable operation.
Its small footprint and high integration level make the LM3644YFFR ideal for designers seeking compact, efficient solutions in portable electronic devices. The device comes in a small YFF (DSBGA) package, enhancing its suitability for space-constrained applications.

Equivalent

Equivalent products to the LM3644YFFR LED flash driver include the MAX77693 from Maxim Integrated, the NCP5680 from ON Semiconductor, the AAT3170 from Skyworks Solutions, and the TPS61050 from Texas Instruments. Compatibility will depend on the specific application requirements such as output current, voltage, and package size, so it's important to review the specifications to ensure they meet the criteria for your project.

Features

The LM3644YFFR is a highly integrated LED flash driver from Texas Instruments, designed for camera flash applications in smartphones and portable devices. Key features include:
1. High Output Current: It provides up to 1.5A current for flash mode and 400mA for torch mode, ensuring bright and efficient illumination.
2. Flexible Control: The driver supports I²C-compatible interface for easy programmability and control.
3. Efficiency: It uses a high-efficiency synchronous boost converter, enhancing battery life by minimizing power loss.
4. LED Fault Detection: The LM3644YFFR includes protection features like LED short-circuit detection and over-temperature protection.
5. Small Package Size: Offered in a compact YFF (DSBGA) package, it is ideal for space-constrained applications.
6. Safety Features: It includes a safety timer and adjustable flash timeout feature to prevent overheating.
7. Wide Input Voltage Range: It operates over a wide input voltage range, providing flexibility in various battery configurations.
These features make the LM3644YFFR a robust solution for enhancing the performance of camera flash systems in portable electronics.

Pinout

The LM3644YFFR is a high-power, high-efficiency LED flash driver. It is typically used in mobile devices to drive camera flash LEDs. The device comes in a small form factor package, specifically a 16-bump DSBGA (Die-Size Ball Grid Array) package.
This package has 16 contact points but is often referred to by the general description of having 16 pins. The LM3644YFFR provides several key functions, including adjustable output current, programmable flash timing, and torch mode for continuous lighting. It features I²C-compatible control, which allows for precise management of the flash functions and current settings. The device also includes safety features such as LED fault detection and a thermal shutdown capability to prevent overheating.
Overall, the LM3644YFFR is designed to deliver efficient performance in a compact footprint, making it suitable for space-constrained applications like smartphones and tablets.

Manufacturer

The LM3644YFFR is a product manufactured by Texas Instruments. Texas Instruments, often abbreviated as TI, is a global technology company based in Dallas, Texas. TI is renowned for designing and producing a wide range of semiconductor products, including integrated circuits (ICs), processors, amplifiers, and other electronic components. The company serves diverse industries, including consumer electronics, automotive, industrial, and communications sectors. Texas Instruments is widely recognized for its innovation in analog and embedded processing technologies, which are integral to the development of electronic devices and systems.

Application

The LM3644YFFR is a high-current LED flash driver commonly used in portable electronic devices. Its primary application areas include smartphones and tablets, where it provides flash illumination for cameras. The device is designed to deliver high-efficiency lighting with minimal power consumption, making it ideal for enhancing photo quality in low-light conditions. Additionally, it can be used in other portable imaging systems or any application requiring high-intensity, short-duration lighting. Its compact size and efficient performance make it suitable for space-constrained designs in consumer electronics.

Package

The LM3644YFFR is a Texas Instruments device typically housed in a small, wafer-level chip-scale package (WLCSP) suitable for compact applications. It is designed for high-efficiency, high-current LED flash driver applications. The YFFR suffix indicates the specific package version, often a 1.225mm x 1.625mm x 0.525mm, 25-bump WLCSP.

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