Renesas Electronics Announces New Automotive Intelligent Power Device

Renesas Electronics Corporation (TSE: 6723), a leading supplier of advanced semiconductor solutions, today announced a new automotive Intelligent Power Device (IPD) that safely and easily controls the distribution power distribution inside vehicles, meeting the requirements of next generation E/E ( electrical/electronic) architectures. The new RAJ2810024H12HPD is available in a small TO-252-7 package and reduces the mounting area by about 40% compared to the conventional TO-263 product package. In addition, the advanced functionality of the current analysis of the new device allows very accurate identification of abnormal currents such as excessive energy. Since the new IPD detects abnormal currents even at low loads, it allows engineers to design more secure and accurate power control systems that can detect even the smallest abnormalities.

“We are very pleased to launch a new generation of automotive IPDs featuring our new MOSFET power process,” said Akira Omichi, Vice President of Renesas’ Automotive Analog Application Specific Business Division. “Renesas will continue to develop IPDs that improve the safety and reliability of power supply systems and facilitate system development for our customers by offering system-level solutions with our microcontrollers.”

The new IPD was developed to meet the growing requirements as E/E architectures continue to evolve. In a typical distributed E/E architecture, the power supply from the battery is distributed to each Electronic Control Unit (ECU) via long, thick wires from a power box that consisting of mechanical relays and fuses. IPDs have a longer life and are maintenance free compared to mechanical relays, so they can be placed anywhere in the vehicle. As the automotive industry moves towards centralized or zone-oriented E/E architectures, IPDs become an ideal option for building efficient and flexible power supply networks because they use more short, thin wires. Renesas’ IPD in particular provides a more efficient, safer and smaller solution for power distribution control.

Key Features of the New IPD (RAJ2810024H12HPD)

• Single-channel high-side IPD
• Small TO-252-7 package (6.10 x 6.50 mm: excluding pins)
• Low on-resistance (Ron) of 2.3mΩ at 25°C (typ.)
• Very accurate current analysis at low loads
• Built-in charge pump
• Self-diagnostic feedback through load current sense
• Protection functions such as load short-circuit, overheat detection, output current sensing, and open GND protection
• Supports 3.3V/5V logic interface
• Low standby current
• Battery reverse connection protection with self-turn-on
• Complies with AEC-Q100 and RoHS automotive standards

“Power Distribution Box with E-fuse” Solution

Renesas offers Power Distribution Box with E-fuse solution using existing IPD. By replacing the usual fuses in the power supply box with small IPDs and programming the characteristics of the fuse into the microcontroller, developers can optimize the wiring harness and improve reliability through current monitor. This solution is part of Renesas’ Winning Combinations, which optimally combine mutually compatible Renesas devices that work together seamlessly to reduce user design risk and shorten time to market. Renesas offers more than 300 other Winning Combinations with many products from its portfolio.