Infineon Technologies : new 80 V DC-DC buck LED driver IC offers excellent dimming performance
July 03, 2019 at 04:13 am EDT
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Munich, Germany - 3 July 2019 - Infineon Technologies AG (FSE: IFX / OTCQX: IFNNY) introduces the new LED driver IC ILD8150/E. It features an innovative hybrid dimming mode technology for achieving 0.5 percent of the target current. With its supply voltage range from 8 V DC up to 80 V DC, the driver IC provides a high safety voltage margin for applications operating close to safe extra-low voltage (SELV) limits. The driver IC is ideally suited for general and professional LED lighting applications with high dimming requirements.
The ILD8150/E offers a deep dimming performance without flicker and prevents audible noise. A PWM input signal between 250 Hz and 20 kHz controls the LED current in analog dimming output mode from 100 to 12.5 percent and from 12.5 to 0.5 percent in hybrid dimming mode, with a flicker-free modulation frequency of 3.4 kHz. The digital PWM dimming detection with high resolution and the low power shutdown perfectly match the ILD8150/E to microcontrollers. The device also has a dim-to-off function and a pull-down transistor to avoid LED glowing in dim-to-off mode.
Infineon's new ILD8150/E drives up to 1.5 A using a high-side integrated switch. The latter one with a low R DS(on) of 290 mΩ (ILD8150) enables high power designs with an efficiency of more than 95 percent. It incorporates a soft-start function to protect the primary stage from abrupt current requests and a shunt resistor for adjustable maximum output current. Precise output current accuracy of typical 3 percent from one device to another under all load and input voltage conditions makes the IC perfect for e.g., tunable white and flat panel designs where current must be identical. Additionally, under voltage lockout (UVLO) for the bootstrap voltage and over temperature protection functions provide an ideal fit for professional LED lighting solutions.
Availability
The LED driver IC is packaged in a DSO-8 housing which enables wave soldering. Higher thermal performance can be achieved with the ILD8150E in a DSO-8 package with an exposed pad. Both variants can be ordered now. More information is available at www.infineon.com/ild8150 and www.infineon.com/ild8150e.
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Infineon Technologies AG published this content on 03 July 2019 and is solely responsible for the information contained therein. Distributed by Public, unedited and unaltered, on 03 July 2019 08:12:09 UTC
Infineon Technologies AG is one of the world's leading manufacturers of semiconductors. The group's products include power semiconductors, sensors, microcontrollers, digital, mixed-signal and analog ICs, discrete semiconductor modules, switches, interface ICs, motor-controlling ICs, RF power transistors, voltage regulators, and electronic safety components. Net sales break down by area of activity as follows:
- automotive (50.5%): semiconductor products used in the automotive industry, and memory products for specific applications for automotive, industrial, information technologies, telecommunications and consumer electronics.
- power & sensor systems (23.3%): semiconductors for energy-efficient power supplies, mobile devices, mobile phone network infrastructures, human-machine interaction as well as applications with special demands on their robustness and reliability.
- industrial power control (13.5%): semiconductor products for the conversion of electrical energy for small, medium and high-power applications, used in the manufacturing, the low-loss transmission, the storage and the efficient use of electrical energy;
- connected secure systems (12.6%): semiconductors for networked devices, card-based applications, and government documents; microcontrollers for industrial, entertainment, and household applications, components for connectivity systems, various customer support systems;
- other (0.1%).
Net sales are distributed geographically as follows: Germany (12.4%), Europe/Middle East/Africa (14.4%), China/Hong Kong/Taiwan (32.3%), Japan (10.5%), Asia/Pacific (15.9%), the United States (12.1%) and Americas (2.4%).