STLD40DPUR
ActiveLED DRIVER DC/DC, BOOST (STEP UP), NON ISOLATED, 3 V TO 5.5 V, 20 MA, 37 V,8 PINS, QFN-EP
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STLD40DPUR
ActiveLED DRIVER DC/DC, BOOST (STEP UP), NON ISOLATED, 3 V TO 5.5 V, 20 MA, 37 V,8 PINS, QFN-EP
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Technical Specifications
Parameters and characteristics for this part
| Specification | STLD40DPUR |
|---|---|
| Applications | Backlight |
| Current - Output / Channel | 20 mA |
| Dimming | PWM |
| Internal Switch(s) | True |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 85 C |
| Operating Temperature [Min] | -40 ¯C |
| Package / Case | 8-VDFN Exposed Pad |
| Supplier Device Package | 8-QFN (3x3) |
| Topology | Step-Up (Boost) |
| Type | DC DC Regulator |
| Voltage - Output | 37 V |
| Voltage - Supply (Max) [Max] | 5.5 V |
| Voltage - Supply (Min) [Min] | 3 V |
Pricing
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Description
General part information
STLD40D Series
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 TSWis 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 RLED. 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 RSETto the pin RSET.
Documents
Technical documentation and resources