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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.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
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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