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News
Analog Devices’ Small Isolated Gate Drivers Deliver Solutions for Next Generation Power Switch Technology
2017-05-22 | ReturnWhile legacy alternatives such as optocouplers or pulse transformers struggle to deliver shorter delay and maintain CMTI performance, the robust ADuM4120 and ADuM4121 are purposely designed to enable the higher switching speeds of the new inverter architectures. In systems requiring multiple power switches, these small SOIC packaged isolated gate drivers minimize PCB layout space subsequently reducing cooling requirements. Additionally, their small size allows the gate drivers to be located close to the power switches to reduce the parasitic inductance between the driver and the switch. Operating over a high temperature range and high working voltages, the ADuM4120 and ADuM4121 are ideal for improving the energy efficiency and timing performance stability of solar inverters, motor controllers, and industrial inverter applications.
View product page and download data sheet:
Learn more about ADI’s interface and iCoupler® digital isolator products: http://www.analog.com/en/products/interface-isolation/isolation/isolated-gate-drivers.html
Connect with engineers and ADI product experts on EngineerZone®, an online technical support community: https://ez.analog.com/community/interface-isolation
All four devices in the new series are 2 A output, single-channel gate drivers that provide 5 kV rms isolation with low propagation delay and CMTI performance of >150 kV/μs. Operating with an input supply ranging from 2.5 V to 6.5 V, these isolated gate drivers provide compatibility with lower voltage systems with the benefit of true galvanic isolation between the input and the output. The ADuM4120 and ADuM4120-1 provide thermal shutdown for over temperature protection. The ADuM4120 with input glitch filter reduces system noise on the input pin that could trigger a false output, while the ADuM4120-1 without glitch filter supports low 33ns typical propagation delay. The ADuM4121 and ADuM4121-1 are available with an internal Miller clamp for added protection. The ADuM4121 device is also available with the thermal shutdown. By offering gate drivers in a small package and retaining key performance specifications, ADI provides designers with the flexibility needed to successfully architect next generation power conversion systems.
Pricing and Availability
Product |
Isolated Gate Driver |
Full Production |
1K Price |
Package |
ADuM4120 |
Enabled Glitch Filter |
Now |
$1.58 |
6 lead SOIC |
ADuM4120-1 |
Disabled Glitch Filter |
Now |
$1.58 |
6 lead SOIC |
ADuM4121 |
Internal Miller Clamp with Thermal Shutdown |
Now |
$1.87 |
8 lead SOIC |
ADuM4121-1 |
Internal Miller Clamp without Thermal Shutdown |
Now |
$1.87 |
8 lead SOIC |
Source:http://www.analog.com/