The Function and Working Principle of BTN8982TA

This BTN8982TA integrated high-current half-bridge driver, a perfect combination of N-type and P-type MOSFETs selected for their minimal on-resistance and swift switching capabilities, is engineered to confront voltages as high as 40V and currents up to 25A. Its design proves its robustness and adaptability. Yet, it’s the marriage of safety and efficiency within its circuitry that sets the BTN8982TA apart; it's a chip where diagnostic tools and protective measures coalesce, making it the optimal selection for critical applications ranging from electric parking brakes to HVAC control modules, each demanding uncompromised safety.

Situated within the innovative echelons of the NovalithIC™ family, the BTN8982TA represents the fusion of three discrete chips into a singular, cohesive package. This synthesis, a product of avant-garde chip-on-chip and chip-by-chip technologies, births a high-current half-bridge of unmatched efficiency. The amalgamation of a p-channel high side, an n-channel low-side MOSFET, and a driver IC abolishes the need for a charge pump, curtailing electromagnetic interference in one fell swoop. With logic-level inputs fine-tuning the interface with microcontrollers, the BTN8982TA not only simplifies operation but also enhances safety protection against electrical accidents.

• Manufacturer: Infineon

• Supply Voltage: 8V to 18V

• Operating Temperature: -40°C to 150°C

• Mounting Type: SMD or SMT

• Package: TO-263-7, Tape & Reel (TR)

• Dimensions: 10 mm x 10.3 mm x 4.4 mm

At the heart of the BTN8982TA is precision component symbiosis: the perfect interplay between P-channel high-side MOSFETs, N-channel low-side MOSFETs, and precision integrated driver ICs, coordinating precise control of various loads, with the motor becoming the focus of attention. This precise coordination between components ensures the adept manipulation of the MOSFET states—energizing the motor coil's upper side to the positive power supply terminal through the engagement of the P-channel MOSFET and disengagement of its N-channel counterpart propels the motor forward, while a reversal in this engagement sequence catalyzes the motor to spin in the opposite direction. The dynamics are as follows:

• P-channel high-side MOSFET: ON

• N-channel low-side MOSFET: OFF

The BTN8982TA's engineering does not stop at performance alone; it extends to robust protection mechanisms against over-temperature, under-voltage, over-current, and short-circuits, thereby ensuring its operation remains steadfast across a myriad of conditions. Moreover, its design, eschewing the need for a charge pump by leveraging the P-channel high-side switch, significantly mitigates electromagnetic interference, underscoring the device's engineering precision.

Delving into the BTN8982TA's symbol, footprint, and pin configuration, we encounter an 8-pin characterized by:

• Pin 1 (GND): Ground

• Pin 2 (IN): Input, the switch activator for high or low side

• Pin 3 (INH): Inhibit, the harbinger of sleep mode

• Pins 4 & 8 (OUT): The conduits of power output for the bridge

• Pin 5 (SR): Slew rate, adjustable with a resistor to ground

• Pin 6 (IS): A dual-purpose pin for current sensing and diagnostics

• Pin 7 (VS): The supply pin

Advancing to the BTN8982TA's feature set, it emerges as a dual-channel, low-voltage side switch, capable of managing two loads in concert. Its compatibility with both 12V and 24V automotive systems, alongside a low quiescent current, highlights an energy-efficient design ethos. Safety and reliability are not merely buzzwords but are actualized through the device's over-current and over-temperature protection features, all while minimizing system energy consumption with its low-power design philosophy.

BTN8982TA is mainly used in the following fields:

The BTN8982TA emerges as a linchpin for automation and smart manufacturing. It brings to the table capabilities that cater to high-speed, high-voltage, and high-current demands, making it an impeccable choice for motor drivers, DC-DC converters, and switch controllers. This component not only facilitates seamless operations but also integrates advanced technological solutions, thereby enhancing productivity and efficiency.

Transitioning to consumer electronics, the BTN8982TA stands out with its high density, performance, and reliability. It offers exceptional power control solutions, especially in smart home applications, focusing on energy management and security enhancements. Moreover, household appliances, introduce a new dimension of energy conservation and performance optimization, underscoring the importance of technological integration in everyday life.

Within the automotive industry, the BTN8982TA addresses challenges related to high-voltage and high-current loads with unparalleled efficacy. Its application in vehicle electronics spans controllers, power locks, and converters, showcasing its adaptability and robustness. In electric and hybrid vehicles, it ensures motor drive efficiency, stability, and energy conservation. Furthermore, it underpins various vehicle control systems, including air conditioning, lighting, and entertainment, highlighting its integral role in enhancing automotive functionalities.

Our half-bridge drivers, embodying the integration of both a high-side and a low-side driver, not only diminish switching losses but also excel in handling noisy environments, thereby significantly enhancing the overall system efficiency.

The BTN8982TA stands as a fully integrated high-current half-bridge, specifically engineered for motor drive applications, and it finds frequent utilization within the automotive industry for the purpose of driving DC motors, showcasing its versatility and critical importance.

In the event of seeking a substitute for BTN8982TA, several alternatives present themselves: BTN8960TA, BTN8960TAAUMA1, BTN8962TAA, BTN8962TAAUMA1, BTN7970SAKSA1, and, interestingly, another variant of BTN8982TA itself, offering a spectrum of options tailored to meet various application needs.

Indeed, the BTN8982TA is a distinguished member of the NovalithIC™ family, which is noteworthy for encapsulating three distinct chips within a singular package: a p-channel high-side MOSFET, an n-channel low-side MOSFET, and a driver IC. This amalgamation forms a robust integrated high-current half-bridge, illustrating the component's innovation and integration prowess.