L4981AD
STMicroelectronics
STMicroelectronics
IC PFC CTR AVER CURR 100KHZ 20SO
$4.78
Available to order
Reference Price (USD)
1+
$3.24000
40+
$2.74950
120+
$2.38292
520+
$2.02852
1,000+
$1.71080
Exquisite packaging
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STMicroelectronics's L4981AD represents the next generation of Power Factor Correction ICs, offering unparalleled performance in AC/DC power conversion systems. This PMIC integrates critical PFC functionality with intelligent control algorithms to achieve power factors exceeding 0.99. The device features adaptive switching frequency control that automatically optimizes efficiency across varying load conditions. With its compact design and minimal external component requirements, the L4981AD simplifies power supply design while reducing overall system costs. Primary applications include telecom power systems, medical equipment power supplies, and industrial automation controllers. The IC's robust design makes it ideal for harsh environments like oil field equipment and railway power systems.
Specifications
- Product Status: Active
- Mode: Average Current
- Frequency - Switching: 100kHz
- Current - Startup: 100 µA
- Voltage - Supply: 14.5V ~ 19.5V
- Operating Temperature: -40°C ~ 125°C
- Mounting Type: Surface Mount
- Package / Case: 20-SOIC (0.295", 7.50mm Width)
- Supplier Device Package: 20-SO
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