E-L4981AD013TR STMicroelectronics Integrated Circuit (Small Outline Packages) In Stock
STMicroelectronics E-L4981AD013TR is a current-mode PWM power factor correction controller IC in a 20-pin SOIC package, operating from 11 V to 19.5 V supply and sourcing up to 2 A gate drive for efficient AC-DC boost PFC stages.
- Manufacturer
- STMicroelectronics
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- OBSOLETE
- Datasheet
- E-L4981AD013TR Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of E-L4981AD013TR?
- Current-mode PWM control architecture enabling precise peak current limiting and inherent cycle-by-cycle protection in PFC boost converters
- 2 A maximum output gate drive current supporting fast switching of medium to large MOSFET transistors in PFC stages
- 11 V to 19.5 V operating supply range compatible with standard VCC rails derived from auxiliary windings in off-line converters
- 20-pin SOIC package with low-profile SMT footprint for compact AC-DC power supply board layouts
What is E-L4981AD013TR used for?
The E-L4981AD013TR targets AC-DC power supply designs requiring active power factor correction to meet IEC 61000-3-2 harmonic current emission standards. It is commonly used in the PFC boost stage of PC power supplies, LED driver ballasts, and industrial SMPS units rated from 75 W to several hundred watts. The current-mode PWM control ensures the input current waveform tracks the line voltage sinusoid, pushing power factor above 0.99 in properly designed boost PFC circuits.
What are the specifications of E-L4981AD013TR?
| YTEOL | 0 |
| Analog IC - Other Type | POWER FACTOR CONTROLLER |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 19.5V |
| Input Voltage-Min | 11V |
| Input Voltage-Nom | 18V |
| JESD-30 Code | R-PDSO-G20 |
| Number of Functions | 1 |
| Output Current-Max | 2A |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Switcher Configuration | SINGLE |
| Switching Frequency-Max | 115kHz |
| Technology | BCDMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the E-L4981AD013TR datasheet?
E-L4981AD013TR Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for E-L4981AD013TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What control mode and gate drive capability does the E-L4981AD013TR provide for PFC boost converter designs?
The E-L4981AD013TR uses current-mode PWM control and delivers up to 2 A peak gate drive current, enabling fast turn-on and turn-off of power MOSFETs in boost PFC stages. This combination allows the converter to shape input current to follow the AC line voltage, achieving power factors above 0.99 in 75 W to 300 W off-line power supplies.
Which off-line power supply applications benefit from the E-L4981AD013TR power factor correction controller?
PC ATX power supplies, LED driver modules, and industrial SMPS units must comply with IEC 61000-3-2 Class C or D harmonic current limits, which requires active PFC. The E-L4981AD013TR provides the PWM control loop for a boost PFC stage operating from 11 V to 19.5 V VCC, fitting neatly into auxiliary-wound offline converter topologies powering loads from 75 W upward.
How does the E-L4981AD013TR 20-pin SOIC package compare to a DIP package option for high-density PSU PCB layouts?
The 20-pin SOIC package of the E-L4981AD013TR has a body width of approximately 7.5 mm and a pin pitch of 1.27 mm, occupying roughly 60% less PCB area than a 20-pin DIP equivalent. This size reduction is significant in compact AC-DC power supplies where the PFC controller must fit alongside large boost inductors and bulk capacitors within a constrained PCB boundary.
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About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
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