MAX4428CSA+

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MAX4428CSA+ is a Voltage Mode, With Level Shifting, PWM Gate Driver from Maxim Integrated Products. It includes an integrated 6000pF fast-switching power MOSFET driving two low-side gate drivers and a low-side level shifter that is capable of generating high- to low-side gate drive voltages up to 24V. The parts incorporate an internal fail-safe circuit that provides a shutoff function during a fault condition, reducing system risk and providing a low on-state resistance (RDSON) for excellent power delivery. It is a highly robust circuit, offering protection against over-voltage, over-current, thermal-overload, short-circuit, and unlock (false trip).

MAX4428CSA+ is an excellent choice for driving high-speed, high-voltage power MOSFET devices. The wide input voltage range of 6V to 24V enables direct operation from high-current battery stacks or an external DC power supply. It is well suited for applications such as dc-dc converters, motor control circuits, and LED lighting applications.

The MAX4428CSA+ has an operational range of -40°C to +105°C, making it suitable for applications in harsh operating environments. Its low supply current of 15mA enables very high efficiency designs and is suitable for battery-operated applications.

The MAX4428CSA+ combines fast MOSFET switching with a low RDSON performance. The speed at which it switches MOSFETs and its low RDSON combine to create low switching losses and improve system efficiency. The operating frequency range is from 100 kHz to 1 MHz and the PWM duty cycle from 0% to 100%.

The MAX4428CSA+ uses an optimized reverse-blocking design to minimize the tail current, reduce the noise, and minimize the parasitic capacitance. It is capable of driving MOSFETs at 1.5A per channel, allowing for high switching speeds and excellent control of power losses associated with high-current gate operation.

The MAX4428CSA+ includes a dedicated dead band delay circuit that can be used to control the timing of the device’s active regions. This feature minimizes current-carrying losses during the disabled period, improving system efficiency and reducing system heat dissipation by reducing the power dissipation associated with the active power switching. The dead-band delay can be adjusted up to 1μs.

The MAX4428CSA+ is designed to provide superior EMI performance. The low-current level shifter circuitry is capable of generating low-side gate drive voltages up to 24V and may be used to reduce the noise produced by the power components, while keeping the overall circuit loop small. Its low electrical noise and superior system protection features make it an ideal choice for systems that require reliable, low noise levels.

The MAX4428CSA+ is available in an 8-pin TDFN package for applications where space is at a premium. It is also available in a compact DIP package for designs where flexibility is preferred. The parts are RoHS compliant and have been tested for compliance with ANSI standard UL, CSA, EN, F-M, and IEC standards.

The MAX4428CSA+ is an excellent choice for driving MOSFETs in challenging applications such as dc-dc converters, motor control circuits, and LED lighting. Its robust feature set, wide input voltage range, and low power dissipation make it an attractive option for designers seeking low-cost, high-efficiency gate driver solutions.

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