View All

Please refer to the English Version as our Official Version.Return

Europe
France(Français) Germany(Deutsch) Italy(Italia) Russian(русский) Poland(polski) Czech(Čeština) Luxembourg(Lëtzebuergesch) Netherlands(Nederland) Iceland(íslenska) Hungarian(Magyarország) Spain(español) Portugal(Português) Turkey(Türk dili) Bulgaria(Български език) Ukraine(Україна) Greece(Ελλάδα) Israel(עִבְרִית) Sweden(Svenska) Finland(Svenska) Finland(Suomi) Romania(românesc) Moldova(românesc) Slovakia(Slovenská) Denmark(Dansk) Slovenia(Slovenija) Slovenia(Hrvatska) Croatia(Hrvatska) Serbia(Hrvatska) Montenegro(Hrvatska) Bosnia and Herzegovina(Hrvatska) Lithuania(lietuvių) Spain(Português) Switzerland(Deutsch) United Kingdom(English)
Asia/Pacific
Japan(日本語) Korea(한국의) Thailand(ภาษาไทย) Malaysia(Melayu) Singapore(Melayu) Vietnam(Tiếng Việt) Philippines(Pilipino)
Africa, India and Middle East
United Arab Emirates(العربية) Iran(فارسی) Tajikistan(فارسی) India(हिंदी) Madagascar(malaɡasʲ)
South America / Oceania
New Zealand(Maori) Brazil(Português) Angola(Português) Mozambique(Português)
North America
United States(English) Canada(English) Haiti(Ayiti) Mexico(español)
HomeProductsIntegrated Circuits (ICs)PMIC - LED DriversIS31FL3743B-QULS4-TR
IS31FL3743B-QULS4-TR Image
Image may be representation.
See specifications for product details.
EXPRESS OPTION
Payment method

IS31FL3743B-QULS4-TR - Lumissil Microsystems

Manufacturer Part Number
IS31FL3743B-QULS4-TR
Manufacturer
Lumissil Microsystems
Allelco Part Number
32D-IS31FL3743B-QULS4-TR
ECAD Model
Parts Description
IC LED DRV LIN PWM 34.5MA 40UQFN
Package
40-UFQFN Exposed Pad
Data sheet
IS31FL3743B.pdf
RoHs Status
ROHS3 Compliant
Our certification
In stock: 34069

Required fields are indicated by an asterisk (*)
Please send RFQ, we will respond immediately.

Quantity
EXPRESS OPTION
Payment method
Our certification

Specifications

IS31FL3743B-QULS4-TR Tech Specifications
Lumissil Microsystems - IS31FL3743B-QULS4-TR technical specifications, attributes, parameters and parts with similar specifications to Lumissil Microsystems - IS31FL3743B-QULS4-TR

Product Attribute Attribute Value  
Manufacturer Lumissil Microsystems  
Voltage - Supply (Min) 2.7V  
Voltage - Supply (Max) 5.5V  
Voltage - Output -  
Type Linear  
Topology -  
Supplier Device Package 40-UQFN (5x5)  
Series -  
Package / Case 40-UFQFN Exposed Pad  
Package Tape & Reel (TR)  
Product Attribute Attribute Value  
Operating Temperature -40°C ~ 125°C (TA)  
Number of Outputs 11  
Mounting Type Surface Mount  
Internal Switch(s) No  
Frequency 12MHz  
Dimming PWM  
Current - Output / Channel 34.5mA  
Base Product Number IS31FL3743  
Applications General Purpose  

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 3 (168 Hours)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Parts Introduction

Manufacturer Part Number

IS31FL3743B-QULS4-TR

Manufacturer

Lumissil

Introduction

IS31FL3743B-QULS4-TR is a linear type LED driver designed for power management applications, provided in tape & reel packaging for mass production feasibility.

Product Features and Performance

Linear LED driver

Supports 11 outputs for multiple LED configurations

PWM dimming capability for variable light control

High frequency operation at 12MHz

Capable of driving 34.5mA per output channel

Operational within a wide supply voltage range of 2.7V to 5.5V

Suitable for operating in a broad temperature range from -40°C to 125°C

Product Advantages

No internal switch reduces external component requirement

Surface mount technology for compact board design

Extended operational temperature range for use in harsh environments

Efficient PWM dimming for energy savings and precise brightness control

Key Technical Parameters

Number of Outputs: 11

Voltage - Supply (Min): 2.7V

Voltage - Supply (Max): 5.5V

Current - Output/Channel: 34.5mA

Frequency: 12MHz

Operating Temperature: -40°C to 125°C

Quality and Safety Features

Built to operate reliably in temperatures ranging from -40°C to 125°C

Quality construction for stable performance in various applications

Compatibility

Compatible with general-purpose LED driving applications

Mounting Type: Surface Mount

Package / Case: 40-UFQFN Exposed Pad

Supplier Device Package: 40-UQFN (5x5)

Application Areas

Suitable for a diverse range of general-purpose LED driving applications

Product Lifecycle

Product Status: Active

Not flagged for discontinuation, potential for continued supply and support

Replacements or upgrades may be available based on Lumissil's future product roadmap

Several Key Reasons to Choose This Product

High reliability and stability over a broad operating temperature range

Flexibility in design with 11 output channels

High-frequency PWM dimming provides precise brightness control

Ease of manufacturing with surface mount technology and tape & reel packaging

Energy-efficient operation with linear output regulation

Overall a versatile and efficient solution for managing LED arrays in various electronic products

Parts with Similar Specifications

The three parts on the right have similar specifications to Lumissil Microsystems IS31FL3743B-QULS4-TR

Product Attribute IS31FL3743B-QULS4-TR IS31FL3738-QFLS4-TR IS31FL3743A-QULS4-TR IS31LT3505-SLS2-TR
Part Number IS31FL3743B-QULS4-TR IS31FL3738-QFLS4-TR IS31FL3743A-QULS4-TR IS31LT3505-SLS2-TR
Manufacturer Lumissil Microsystems Lumissil Microsystems Lumissil Microsystems Lumissil Microsystems
Supplier Device Package 40-UQFN (5x5) 28-QFN (5x5) 40-UQFN (5x5) 10-MSOP
Operating Temperature -40°C ~ 125°C (TA) -40°C ~ 125°C -40°C ~ 125°C (TA) -40°C ~ 85°C (TA)
Voltage - Output - - - 35V
Dimming PWM PWM PWM PWM
Package / Case 40-UFQFN Exposed Pad 28-WFQFN Exposed Pad 40-UFQFN Exposed Pad 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad
Base Product Number IS31FL3743 IS31FL3738 IS31FL3743 IS31LT3505
Number of Outputs 11 8 11 1
Type Linear Linear Linear DC DC Regulator
Applications General Purpose Lighting General Purpose Backlight
Series - - - -
Voltage - Supply (Max) 5.5V 5.5V 5.5V 30V
Package Tape & Reel (TR) Tape & Reel (TR) Tape & Reel (TR) Tape & Reel (TR)
Topology - - - Step-Up (Boost)
Current - Output / Channel 34.5mA 84mA 34.5mA 2.4A (Switch)
Internal Switch(s) No No No Yes
Voltage - Supply (Min) 2.7V 2.7V 2.7V 6V
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Frequency 12MHz 1MHz 24kHz 1MHz

IS31FL3743B-QULS4-TR Datasheet PDF

Download IS31FL3743B-QULS4-TR pdf datasheets and Lumissil Microsystems documentation for IS31FL3743B-QULS4-TR - Lumissil Microsystems.

Datasheets
IS31FL3743B.pdf

Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.

Your Faithful Supply Chain Partner -

Contact us if you have any questions.

  1. Phone
    +00852 9146 4856

Certifications & Memberships

View More
IS31FL3743B-QULS4-TR Image

IS31FL3743B-QULS4-TR

Lumissil Microsystems
32D-IS31FL3743B-QULS4-TR

Want a better price? Please Add to Cart, we'll contact you immediately.

0 RFQ
Shopping cart (0 Items)
It is empty.
Compare List (0 Items)
It is empty.
Feedback

Your feedback matters! At Allelco, we value the user experience and strive to improve it constantly.
Please share your comments with us via our feedback form, and we'll respond promptly.
Thank you for choosing Allelco.

Subject
E-mail
Comments
Captcha
Drag or click to upload file
Upload File
types: .xls, .xlsx, .doc, .docx, .jpg, .png and .pdf.
Max file size: 10MB