LM3643YFFR

$0.65

Description：IC LED DRVR RGLTR I2C 12DSBGA
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:c3a889a6e2a5 Category: LED Drivers IC Brand: Texas Instruments

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Product introduction

LM3643YFFR is listed in the LED Driver IC range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is IC LED DRVR RGLTR I2C 12DSBGA. Review the specifications below when checking this part for your BOM.

LED Driver IC specifications for LM3643YFFR

Description：IC LED DRVR RGLTR I2C 12DSBGA
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)
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
Voltage - Output：-
Current - Output / Channel：750mA
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
Grade：-
Qualification：-

LED Driver IC datasheet and documents for LM3643YFFR

LM3643YFFR

LED Driver IC Overview

The LM3643YFFR is a dual-channel LED flash driver from Texas Instruments, designed for mobile camera applications. It utilizes a boost topology to drive two independent LED channels with a maximum output current of 1.5 A per channel. The device operates on an input voltage range of 2.5 V to 5.5 V and supports adjustable output voltages. Key electrical specifications include selectable switching frequencies of 2 MHz and 4 MHz. It features I2C control for configuration and includes an IR mode for infrared illumination support. The component is housed in a DSBGA-12 package and functions within a temperature range of -40°C to +85°C.

LED Driver IC Feature Summary

Dual-channel architecture supporting independent LED flash outputs
I2C interface for digital control and configuration
Integrated infrared (IR) mode capability
Adjustable switching frequency selection

LED Driver IC Applications

Mobile phone camera flash systems
Tablet device illumination modules
Infrared lighting for low-light imaging

LED Driver IC Procurement Notes

Verify the specific suffix 'YFFR' against the manufacturer's official datasheet to confirm pinout and packaging details. Ensure compatibility with the target PCB footprint for the DSBGA-12 package. Confirm that the design supports the required I2C communication lines and inductor selection for the specified boost topology.

LED Driver IC Selection Notes

Select this component when a compact dual-channel solution is required for high-current LED flashing. The choice depends on the need for I2C programmability and the specific space constraints offered by the DSBGA-12 package. Consider the 2 MHz and 4 MHz frequency options based on external component size requirements and EMI sensitivity.

LED Driver IC Part Context

This part belongs to the LM3643 series of LED drivers from Texas Instruments. It is distinct from single-channel variants like the LM3648 and higher-power multi-channel drivers such as the LM3646. The series focuses on providing efficient power management for portable consumer electronics requiring reliable flash performance.