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See Technical Specifications

L4981AD

Power Factor Controller L4981AD

Manufacturer:

Stmicroelectronics
Mfr.Part #:

L4981AD
Datasheet:

L4981AD Datasheet (PDF)
ECCN US:

EAR99
ECCN EU:

NEC
Packing Type:

Tube
Grade:

Industrial

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L4981AD General Description

The L4981AD is a high voltage, high-speed switching regulator designed for use in power supply applications. It operates at a fixed frequency of 100kHz and has a voltage range of 8V to 60V, making it suitable for a wide range of input voltages. This switching regulator features a built-in overload and short-circuit protection circuit, ensuring the safety of the device and any connected components. It also has a low power standby mode, reducing power consumption during idle periods.The L4981AD has a maximum output current of 1.5A and provides an output voltage that is adjustable from 5V to 50V. It also includes a soft-start function to prevent high inrush currents during start-up.In addition, the L4981AD has a thermal shutdown feature to protect against overheating and comes in a compact, thermally efficient package.

Key Features

The L4981AD is a voltage regulator IC that features a wide input voltage range, adjustable output voltage, and high efficiency

It also includes protection features such as overcurrent, overvoltage, and thermal shutdown to ensure safe operation

Application

The L4981AD is typically used in low-power offline flyback converters, such as power adapters, chargers, LED lighting, and small appliances

It can also be used in auxiliary power supplies, industrial controls, and standby power supplies due to its high efficiency, low standby power consumption, and wide input voltage range capabilities