PS9553L3-E3-AX Isolators

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PS9553L3-E3-AX is a three-channel, optically isolated gate driver IC for driving IGBTs, MOSFETs, multichip systems and power ICs. It is developed using the latest design technology to give high voltage rail to rail input/output (RRIO) circuits that are both easy to use and proven reliable.

Application fields

The PS9553L3-E3-AX is typically used in power management, motion control and industrial automation. Applications include UPS systems, motor drives, inverters, power supplies, robots, vertical integration systems and motor controllers. Its advanced gate driver technology and isolation solutions help reduce the cost of ownership.

The device is also suitable for use in energy-saving application and smart grids. The three-channel gate driver can drive twelve IGBTs or twelve power transistors, enabling it to operate in the AC-DC switching power supplies and three-phase motor drives found in smart grid systems. By providing galvanic isolation between the power circuit and the control circuit, the PS9553L3-E3-AX can satisfy the power safety requirements of smart grids.

Working principle

The PS9553L3-E3-AX has a three-channel controller and an optically isolated voltage level shifter. When an input signal is applied to the input pins, the optically isolated voltage level shifter senses the logic levels and converts the input signal to an appropriate level for the output pins. The three output channels are separately controlled by a power PMOSFET and two NMOSFETs. The output channels are capable of driving three IGBTs and three power transistors, allowing for power circuit control with a minimum number of components.

The device offers options to select the drive voltage or speed. The turn-on or turn-off speed of the output can be adjusted from 0.3micro-seconds to 10micro-seconds. The operating frequency can be set by adjusting the internal circuitry. In addition, the PS9553L3-E3-AX features an over-temperature and over-voltage protection function to prevents device damage and breakdown caused by unexpected events such as voltage surges or heat dissipation.

The PS9553L3-E3-AX also has a wide operating temperature range, making it ideal for use in a wide range of temperature environments. The device also features built-in short-circuit protection, which keeps it from malfunctioning even if the IGBT is short circuited. This feature makes the PS9553L3-E3-AX the best choice for mission critical applications, where reliability and safety are essential.

The PS9553L3-E3-AX is a highly-integrated, three-channel, optically isolated gate driver IC for driving IGBTs, MOSFETs, multichip systems, and power ICs. Its wide range of features, coupled with the highest quality design and manufacturing techniques, make the PS9553L3-E3-AX the best choice for applications where high voltage rail to rail input/output, power circuit protection, and isolation solutions are required.

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