LNK6778K-TL Allicdata Electronics
Allicdata Part #:

LNK6778K-TL-ND

Manufacturer Part#:

LNK6778K-TL

Price: $ 0.00
Product Category:

Integrated Circuits (ICs)

Manufacturer: Power Integrations
Short Description: IC LINKSWITCH 48W 68W 12ESOP
More Detail: Converter Offline Flyback Topology 120kHz ~ 136kHz...
DataSheet: LNK6778K-TL datasheetLNK6778K-TL Datasheet/PDF
Quantity: 1000
Stock 1000Can Ship Immediately
Specifications
Duty Cycle: 64%
Mounting Type: Surface Mount
Supplier Device Package: 12-ESOP
Package / Case: 12-BESOP (0.350", 8.89mm Width), 11 Leads, Exposed Pad
Operating Temperature: -40°C ~ 150°C (TJ)
Control Features: --
Fault Protection: Current Limiting, Over Load, Over Temperature, Over Voltage, Short Circuit
Power (Watts): 68W
Frequency - Switching: 120kHz ~ 136kHz
Series: LinkSwitch™-HP
Voltage - Supply (Vcc/Vdd): --
Topology: Flyback
Voltage - Breakdown: 725V
Internal Switch(s): Yes
Output Isolation: Isolated
Part Status: Active
Packaging: Tape & Reel (TR) 
Description

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The LNK6778K-TL line of PMICs (Power Management Integrated Circuits) from Texas Instruments is specially designed for use in AC/DC Conversion, Offline Switching, and other low-power applications. This line of PMICs is an excellent choice for everything from high-end digital systems to low-power analog systems. Its features include a wide input voltage range, a wide output voltage range, and a range of power analog features including programmable slew rate, soft start, and programmable overvoltage protection. Along with these features, the LNK6778K-TL also has an integrated current Mode PWM Controller with an adjustable frequency. Lets take a deeper dive into what the LNK6778K-TL has got to offer and understand its working principle.

The LNK6778K-TL is a single-chip PWM (Pulse Width Modulation) controller designed to deliver high efficiency and precision power conversion in AC/DC and offline switching applications. It is an integrated PMIC (Power Management Integrated Circuit) which is composed of four main components – an Energy Saver Mode (ESM), a Pulse Width Modulated (PWM) controller, a frequency converter and a low EMI substrate.The PWM controller is responsible for producing PWM signals which the ESM and frequency converter use to generate a 480KHz switching frequency, addressing energy-efficiency requirements for high-efficiency applications. The low EMI substrate eliminates the need for complicated measures to address EMI issues.

The LNK6778K-TL’s wide input voltage range allows it to work in a variety of applications from 6V up to 60V input voltage. It also has a wide operating temperature range of -40℃ to +85℃ and can support peak output currents up to 500mA. In applications where current ripple is an issue, the integrated PWM controller can be programmed to produce low-frequency, high-resolution PWM signals which result in low ripple current. The PWM controller has an adjustable switching frequency of up to 1MHz and also has an adjustable PWM duty cycle range of 10% to 90%. In addition, the LNK6778K-TL supports a variety of soft start and overvoltage protection features to help maintain the performance of the converter and protect it during operation.

The LNK6778K-TL also has a programmable slew rate feature that helps protect the converter from high inrush current while keeping the output voltage stable. The LNK6778K-TL’s slew rate can be adjusted from 0.22V/µs to 6.2V/µs in 2mV/µs increments. This feature is especially useful in applications which require a slow rise time for the output voltage such as battery chargers and power supplies for AC/DC converters. The LNK6778K-TL also supports an adjustable overvoltage protection feature which can be set from 6V to 60V.

In conclusion, the LNK6778K-TL from Texas Instruments is an ideal choice for low-power analog and digital systems. With its wide input and output voltage range, programmable PWM controller, adjustable frequency, soft-start, and overvoltage protection features, this PMIC is designed to deliver precision and power conversion in AC/DC and offline switching applications. The LNK6778K-TL is flexible, reliable, and easy to use, making it the perfect choice for designers looking for a power management IC for their next design project.

The specific data is subject to PDF, and the above content is for reference

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