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STLD41 - White LED driver

Description

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.

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.

📥 Download Datasheet

Datasheet preview – STLD41

Datasheet Details

Part number STLD41
Manufacturer STMicroelectronics
File Size 452.17 KB
Description White LED driver
Datasheet download datasheet STLD41 Datasheet
Additional preview pages of the STLD41 datasheet.

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Full PDF Text Transcription

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STLD41 White LED driver for mid-size LCD display backlight Datasheet − production data 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 DFN8 (3 x 3 mm) signal connected to the EN pin. The LEDs can be dimmed by applying a PWM signal to the PWM pin.
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