The design options built-in motor driver, MOSFET expertise, and optimized PCB structure for faster circuit meeting, accelerating improvement and market entry for 100 W pumps.
An auxiliary water pump is important in automotive thermal administration programs for a number of causes. It offers supplemental cooling to the engine, battery, and different elements when the first water pump, which is often engine-driven, is off or when extra cooling is required. That is particularly vital in hybrid and electrical automobiles to take care of optimum temperatures for the battery and digital programs. In chilly climate, the auxiliary water pump can flow into coolant by way of the engine and heating system earlier than beginning the engine, aiding in faster warm-up and decreased emissions. For automobiles with turbocharged engines, it gives cooling to the turbocharger after the engine is shut off, stopping warmth soak and prolonging the turbocharger’s life. By guaranteeing all elements function inside their ultimate temperature ranges, the auxiliary water pump contributes to raised gas effectivity, engine efficiency, and total car longevity.
The REF_WATERPUMP100W is a reference design by Infineon Applied sciences developed particularly for 3-phase automotive auxiliary water pumps utilized in thermal administration programs. It options the TLE9879QXW40, which is a part of the Embedded Energy IC household. This single-chip 3-phase motor driver is a System-on-Chip (SoC) answer that integrates an industry-standard Arm® Cortex®-M3 core, LIN transceiver, bridge driver, and energy provide. This integration allows the implementation of superior motor management algorithms resembling sensorless field-oriented management (FOC).
One other key element of the reference design is the IAUC60N04S6N031H, a 40 V MOSFET in a 5×6 SSO8 bundle that makes use of Infineon’s main OptiMOS™-6 expertise. It gives value effectivity for low and mid-power drive functions and permits for a decreased PCB measurement on account of enhanced routing for bridge functions. Moreover, the design consists of the IPZ40N04S5-3R1, an OptiMOS 5 40 V element in an S3O8 Package deal. This element combines main energy MOSFET expertise with a compact 3.3 x 3.3 mm leadless energy bundle for strong automotive system options. Primarily based on Infineon’s newest silicon automotive PowerMOS expertise, it’s optimized to fulfill and exceed the power effectivity and energy density necessities of automotive BLDC and H-bridge functions. The strong S3O8 leadless bundle expertise allows very small and environment friendly system designs with minimal RDS(on) all the way down to 2.8 mΩ.
The reference design is optimized when it comes to electromagnetic compatibility (EMC) and thermal habits. The reference design is aimed toward accelerating the event course of and serving to builders go to market sooner with their 100 W auxiliary water pump options.
The design gives suggestions for elements and structure. It’s based mostly on a printed circuit board (PCB) design, which permits for faster meeting of a circuit in comparison with a leadframe answer.
Infineon has examined this reference design. It comes with a Invoice of Materials (BOM), schematics, and so on. You will discover extra information in regards to the reference design on the corporate’s web site. To learn extra about this reference design, click on right here.
