Linear Technology LTC1155CN8 Dual High-Side Micropower MOSFET Driver

The LTC1155CN8 is a high-performance dual high-side MOSFET driver designed by Linear Technology, now part of Analog Devices, to provide efficient and reliable control of N-channel power MOSFETs. This integrated circuit is particularly suitable for applications requiring high-side switching of heavy loads with minimal power consumption and heat dissipation.

Key Features

• High-Side Drive: The LTC1155CN8 is capable of driving N-channel MOSFETs in a high-side configuration, which allows for the switching of positive supply voltages without the need for a bootstrap capacitor.
• Micropower Operation: With its low quiescent current, the device is optimized for battery-powered and power-sensitive applications, ensuring minimal drain on power sources.
• Independent Channels: The device features two independent driver channels, which can be controlled separately, providing flexibility for various circuit designs.
• Wide Supply Voltage Range: It operates over a wide supply voltage range of 4.5V to 18V, accommodating a broad spectrum of power systems and load requirements.
• Robust Output Drive: Each channel can source up to 300mA and sink up to 350mA, making it suitable for driving large gate capacitance MOSFETs with fast switching times.
• Protection Features: The LTC1155CN8 includes built-in protection features such as automatic turn-off when a fault condition is detected, thereby safeguarding the MOSFETs and the load.

Applications

The LTC1155CN8 is versatile and can be used in a wide array of applications, including:

• Automotive electronic controls
• Computer power supplies
• Battery-powered equipment
• High-side power switches
• Industrial control systems

Package and Quality

The LTC1155CN8 comes in an 8-pin PDIP package, which is easy to handle and integrate into printed circuit boards. Linear Technology ensures high-quality standards, providing reliable performance for critical and demanding applications.

With its combination of low power consumption, robust drive capability, and built-in protection features, the LTC1155CN8 is an excellent choice for designers looking to implement efficient and reliable high-side power control in their systems.