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STMicroelectronics 1 Output Display Driver, 37V, 20mA PWM Inductor Switch Boost Controller STLD40DPUR
Specifications
| Country of Origin | India |
|---|---|
| Brand | STMicroelectronics |
| Model | STLD40DPUR |
| Mount Type | Surface |
| Series | STLD40D |
| Sub Type | Inductor Switch Boost Controller |
| Number of outputs | 1 |
| Terminal type | QFN8 |
| Input Voltage | 3, 5.5V |
| Output Voltage | 37V |
| Standards/Approvals | RoHS |
| Dimming Operation | PWM |
| Primary Type | Boost Converter |
| Driver Current | 20mA |
| LED Voltage | 37V |
Key Features
- Operates from 3.0 V to 5.5 V input voltage for flexible power options.
- Supports output voltage up to 37 V suitable for driving multiple white LEDs.
- Low shutdown current less than 1 μA for power-saving operation.
- Enables PWM dimming control through logic enable pin.
- Designed with over voltage protection and automatic restart features.
- Compact QFN8 package measuring 3 x 3 mm for space-constrained designs.
- High efficiency with pulse frequency modulation (PFM) inductor switch boost architecture.
- Adjustable peak inductor current programmable with an external resistor.
Product Description
STMicroelectronics STLD40DPUR is a high-efficiency 1 output display driver featuring a 37V output voltage capability and 20mA driver current. It operates as an inductor switch boost controller optimized for white LED backlighting applications in mobile phones, PDAs, and other handheld devices powered by 3.0 V to 5.5 V DC input. This boost converter incorporates pulse frequency modulation (PFM) control in discontinuous conduction mode (DCM) to maximize power efficiency and ensure stable LED current regulation through an external sensing resistor.
The device features a low shutdown current below 1 microampere enabling power conservation when LEDs are off. PWM dimming control is facilitated via the enable (EN) pin, allowing brightness adjustment without compromising efficiency. Over voltage protection with automatic restart safeguards the circuit against voltage spikes. Its peak inductor current can be fine-tuned using a resistor connected to the RSET pin, enhancing flexibility for various LED loads.
Housed in a compact 3 x 3 mm QFN8 package, the STLD40DPUR is suited for space-constrained industrial, consumer electronics, and mobile device applications. It complies with RoHS standards ensuring environmentally friendly usage. Typical use cases include white LED supply for LCD backlight systems in mobile phones, PDAs, handheld electronics, and any device requiring an efficient boost converter from low voltage power sources.
Operates from 3.0 V to 5.5 V input voltage. Delivers output voltage up to 37 V for driving series LEDs. Low shutdown current less than 1 μA reduces standby power consumption. PWM dimming performs LED brightness control effectively.
Over voltage protection with automatic restart enhances reliability. Compact QFN8 3 x 3 mm package simplifies PCB layout. RoHS compliant ensuring adherence to environmental regulations. Adjustable peak inductor current via external resistor RSET.
This STMicroelectronics STLD40DPUR LED driver is an ideal component for industrial and commercial electronic assemblies requiring efficient LED backlight solutions. Explore the Electronics Components > LED Drivers category on EnvMart for complementary products and solutions.
Explore more products in our Inductors category.
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Frequently Asked Questions
This model operates with an input voltage range of 3.0 V to 5.5 V.
It can deliver an output voltage of up to 37 V, suitable for driving multiple white LEDs.
The driver current for this unit is rated at 20 mA.
PWM dimming control is enabled through the logic enable pin, allowing for effective brightness adjustment of the LEDs.
It is housed in a compact QFN8 package measuring 3 x 3 mm, which is suitable for space-constrained designs.
Yes, it features over voltage protection with automatic restart to safeguard against voltage spikes.
The shutdown current is less than 1 μA, which helps in conserving power when the LEDs are off.
It is optimized for white LED backlighting applications in mobile phones, PDAs, and other handheld devices.
This model requires surface mounting for installation.
Yes, it complies with RoHS standards, ensuring environmentally friendly usage.
The peak inductor current can be adjusted using an external resistor connected to the RSET pin.
It uses pulse frequency modulation (PFM) control in discontinuous conduction mode (DCM) to maximize power efficiency.
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