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ST STLD40DPUR product image
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ST STLD40DPURRoHS

Manufacturer
ST
MPN
STLD40DPUR
LCSC Part #
C2969763
Packaging
QFN-8-EP(3x3)
Customer #
Key Attributes
White LED power supply for large display backlight
Datasheetpdf iconST STLD40DPUR

Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/LED Drivers ICs
ManufacturerST
PackagingQFN-8-EP(3x3)
Output Voltage3V~37V
FeaturesOver Voltage Protection
Frequency - Switching-
Switch Tube (Built-In/External)Built-in
Voltage - Input(AC)-
Operating temperature-40℃~+85℃
Number of Channels1
TopologyBoost
Type-
Output Current20mA
Constant Current Accuracy-
Voltage - Input(DC)3V~5.5V
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging3000
Sales UnitPiece

Introduction

AI Translation

STLD40D is a boost converter that operates from 3.0 V to 5.5 V. It can provide an output voltage as high as 37 V and can drive up to 10 white LEDs in series. The converter is a PFM (pulse frequency modulation) inductor switch that can work in discontinuous (DCM) mode operation. A minimum OFF time of the embedded boost switch TSW is fixed internally and allows limiting the switching frequency. The output current capability is 20 mA with an output voltage of 37 V. The regulation is done by sensing the LED current through the resistor R_LED. The device can be turned ON/OFF through the logic enable signal pin EN. By applying a low frequency PWM signal the LEDs can be dimmed. The maximum peak inductor current can be programmed by connected a resistor RSET to the pin RSET.

Features

AI Translation
  • Inductor switches boost controller
  • PFM mode control High efficiency over wide range of input voltage from 3.0 V to 5.5 V
  • Over voltage protection with automatic restart
  • Adjustable peak current limit Enable pin with possibility of PWM dimming control
  • Low shutdown current <1 μA
  • Small external component
  • Good load and line regulation
  • QFN8 3 x 3 mm

Applications

AI Translation
  • White LED supply for LCD backlight
  • Mobile phone
  • PDA and organizers Any handsets powered form 3.0 V to 5.5 V
In-Stock: 101
101 In stock, ships now
Add to BOM List
QtyUnit PriceTotal Amount
1+$ 1.0612$ 1.06
10+$ 0.8674$ 8.67
30+$ 0.7608$ 22.82
100+$ 0.6412$ 64.12
500+$ 0.5879$ 293.95
1,000+$ 0.5637$ 563.70
Standard Packaging3000/Full Reel
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