White LED driver for mid-size LCD display backlight

Download datasheet

Order from our eStore and our distributors

Buy now
Overview
Tools & Software
Resources
Solutions
Quality & Reliability
Sales Briefcase
eDesignSuite
Get Started
Sample & Buy
Partner products
  • The STLD41 is a boost converter that operates from 3.0 V to 21 V and can provide an output voltage as high as 38 V. It can drive up to 40 white LEDs connected in 4 strings of 10 LEDs in series. The total output current capability is 120 mA at an output voltage of 38 V. Regulation is performed by the internal error amplifier which works with the feedback voltage from the sensing resistor. The device can be turned ON/OFF by way of the logic signal connected to the EN pin. The LEDs can be dimmed by applying a PWM signal to the PWM pin.

    Key Features

    • Boost DC-DC converter
    • Drives up to 40 LEDs (4 strings of 10) with a total current up to 120 mA
    • Input voltage range: 3.0 V to 21 V
    • Output current control
    • 1.4 MHz fixed frequency PWM control
    • PWM input for output current dimming with frequency range 25 kHz - 50 kHz
    • 2 A integrated switch
    • Overvoltage protection
    • Chip overtemperature detection and protection
    • Less than 1 μA standby current
    • Soft-start function
    • Package DFN8 (3 x 3) 0.65 mm pitch

Sample & Buy

Part Number
Marketing Status
Quantity
Budgetary Price (US$)*
Package
Packing Type
Temperature (°C) ECCN (US)
More info
Order from Distributors
Order from ST
min
max
STLD41PUR
Active
10000 0.739 VFDFPN 8 3x3x1.0 Tape And Reel -40 85 EAR99
MORE INFO

Country of Origin:

MALAYSIA

Check Availability

Distributor availability ofSTLD41PUR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 6684 1 Order Now
RS COMPONENTS EUROPE 3000 1 Order Now
FUTURE WORLDWIDE 12000 3000 Order Now
ARROW EUROPE 6000 0 Order Now
MOUSER WORLDWIDE 1225 1 Order Now
Farnell Element14 EUROPE 2277 1 Order Now

Distributor reported inventory date: 2019-12-08

Distributor Name

DIGIKEY

Stock

6684

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

3000

Min.Order

1

Region

EUROPE Order Now

FUTURE

Stock

12000

Min.Order

3000

Region

WORLDWIDE Order Now

ARROW

Stock

6000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

1225

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2277

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-12-08

Buy now

STLD41PUR

Marketing Status

Active

Quantity

10000

Unit Price (US$)

0.739*

Distributor availability ofSTLD41PUR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 6684 1 Order Now
RS COMPONENTS EUROPE 3000 1 Order Now
FUTURE WORLDWIDE 12000 3000 Order Now
ARROW EUROPE 6000 0 Order Now
MOUSER WORLDWIDE 1225 1 Order Now
Farnell Element14 EUROPE 2277 1 Order Now

Distributor reported inventory date: 2019-12-08

Distributor Name

DIGIKEY

Stock

6684

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

3000

Min.Order

1

Region

EUROPE Order Now

FUTURE

Stock

12000

Min.Order

3000

Region

WORLDWIDE Order Now

ARROW

Stock

6000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

1225

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2277

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-12-08

Unit Price (US$)

0.739

Package

VFDFPN 8 3x3x1.0

Packing Type

Tape And Reel

Operating Temperature (°C)

(min)

-40

(max)

85

ECCN (US)

EAR99

Country of Origin

MALAYSIA

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

Recommended for you

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS8675
      White LED driver for mid-size LCD display backlight
      5.0
      782.33 KB
      PDF
      DS8675

      White LED driver for mid-size LCD display backlight

    • Description Version Size Action
      AN4140
      STLD41 output power capability
      1.3
      1.43 MB
      PDF
      AN4140

      STLD41 output power capability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STLD41PUR
Active
VFDFPN 8 3x3x1.0 Industrial Ecopack2

STLD41PUR

Package:

VFDFPN 8 3x3x1.0

Material Declaration**:

Marketing Status

Active

Package

VFDFPN 8 3x3x1.0

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

Support & Feedback