STMicroelectronics has introduced its latest technological feat: the ACEPACK 1DMT-32 series of silicon carbide (SiC) power modules. Designed meticulously in a 32-pin, dual-inline, molded, through-hole layout, these modules are set to revolutionize automotive applications, specifically targeting on-board chargers (OBC), DC/DC converters, fluid pumps, and air conditioning systems.
The game-changing ACEPACK 1DMT-32 family offers unparalleled advantages such as superior power density, a streamlined design, and straightforward assembly. Adding to the array of benefits, the modules come in a versatile range of configurations: four-pack, six-pack, and the totem-pole.
A cornerstone of this innovation is the integration of 1200V SiC power switches, enriched by ST’s cutting-edge second and third-generation SiC MOSFET technology. This assures impressively low RDS(on) values. Additionally, these devices showcase efficient switching capabilities with an incredibly limited temperature dependency, paving the way for heightened efficiency and reliability at the converter system level.
Further enhancing the value proposition, STMicroelectronics has ingeniously integrated its tried-and-tested ACEPACK technology into these modules, translating into significant savings in system and design development expenditures without compromising on reliability. The packaging technique features a high-caliber aluminum nitride (AlN) insulated substrate, ensuring optimal thermal performance. An added layer of innovation is the embedded NTC sensor, which offers precise temperature monitoring, safeguarding against potential thermal anomalies.
The inaugural product under the ACEPACK DMT-32 umbrella, aptly named M1F45M12W2-1LA, made its debut today, with plans for mass production commencing in Q4’23. Other promising contenders in the series, including M1F80M12W2-1LA, M1TP80M12W2-2LA, M1P45M12W2-1LA, M1P80M12W2-1LA, and M1P30M12W3-1LA, are currently in the sampling phase, gearing up for large-scale production starting Q1’24. The pricing structure will be contingent upon the specific configuration.
In essence, the ACEPACK 1DMT-32 series by STMicroelectronics stands as a testament to the company’s relentless pursuit of excellence, poised to set new benchmarks in the realm of automotive technology.
What are on-board chargers
On-board chargers (OBCs) are crucial components in electric vehicles (EVs) and plug-in hybrid electric vehicles (PHEVs). They are responsible for converting alternating current (AC) from the power grid (usually from a wall outlet or a dedicated EV charging station) into direct current (DC) to charge the vehicle’s battery pack.Here’s a more detailed breakdown:
Functionality: When you plug your EV or PHEV into a standard electrical outlet or a Level 1 or Level 2 charging station, the electricity from the grid is in AC form. However, the vehicle’s batteries store and utilize power in DC form. The OBC steps in to rectify this mismatch by converting the AC power to DC power, suitable for charging the battery.Placement: As the name suggests, on-board chargers are integrated within the vehicle itself, as opposed to off-board chargers that are external, like the fast-charging stations you might see at service stations.Charging Speed and Capacity: The capacity and efficiency of an OBC, often measured in kilowatts (kW), dictate how fast it can charge the battery. For example, a car with a 6.6 kW OBC will charge faster than one with a 3.3 kW OBC, given the same power source.Compatibility: While all OBCs handle AC to DC conversion, their compatibility with various charging levels can differ. Most OBCs can handle Level 1 (standard wall outlet) and Level 2 (dedicated EV charging station) charging. However, Level 3 or DC fast charging typically bypasses the OBC, as it provides direct current straight to the vehicle’s battery, enabling much faster charging times.
