EMF17T2R

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The EMF17T2R is an integrated circuit technology from STMicroelectronics, a global semiconductor leader, that belongs to the transistors - bipolar (BJT) - arrays, pre-biased category. As such, it is an efficient and reliable solution for demanding applications such as automotive and industrial, offering higher power ratings and enhanced performance in various operating conditions. This article explores the EMF17T2R application field and working principle in more detail.

Application Field

The EMF17T2R is specially designed for medium-power applications, specifically those requiring ruggedness, higher current capabilities and higher operating frequencies. It is suitable for on-board automotive and industrial systems, providing maximum efficiencies at high-temperature and medium load conditions. On-board automotive systems benefit especially from the EMF17T2R due to its robustness and long-term performance. The EMF17T2R is highly reliable in powering on-board systems such as sensors, controllers, and signal conditioning circuitry.

It is also suitable for applications such as home appliances, consumer applications, and green energy. Its design is capable of delivering superior performance in medium to high power applications for switch-mode power supplies, motor drivers, and other power-converter stages. It can also be a valuable attempt to reduce the remaining charge in dc-link capacitors in low power converter designs.

Working Principle

The EMF17T2R is a current-mode square-wave core driver designed to drive high-current MOSFETs, IGBTs and even BJTs. It works in half-bridge configurations as four pre-biased drivers integrated in a single package. The circuit operates with a high side and low side which switches ON the complementary pairs of the MOSFETs or IGBTs. This increases power efficiency and reduces the conduction losses.

The model operates in current mode, where the output current is monitored and then compared to the reference current that is set and monitored via a feedback. When the current becomes larger than the reference current, the device turns off the low side power switch to keep the average current at the reference level. At this time, the high side power switch is turned on to continue the output current.

The EMF17T2R also offers a wide range of features, such as: Built-in gate driver, which can withstand up to 600V for MOSFETs and even 900V for IGBTs; fault monitoring; and an adjustable frequency range, from 10 kHz to 800 kHz, which can be monitored by the over-temperature detectors. Moreover, it operates under a wide temperature range, up to 125 °C, making it capable of handling overloads and short circuits at high temperatures.

The EMF17T2R is highly recommended due to its high performance, reliability and ease of use. Its wide range of features and long-term performance makes it an ideal solution for most medium-power applications. The model can be used for an array of applications, including automotive and industrial, home appliances, and green energy.

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