IR1167ASTRPBF

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The IR1167ASTRPBF is an integrated circuit that belongs to the PMIC – Gate Drives family. It is an isolated high and low side driver integrated circuit that is designed to generate an isolated ground voltage for driving high current power MOSFETs and IGBTs. The IR1167ASTRPBF has a high current capability, a wide common mode range and a low propagation delay time. It can be used for driving high voltage, high power applications such as switched-mode power supply (SMPS), uninterruptable power supply (UPS) and AC/DC converters.

The IR1167ASTRPBF device is configured with a high-side and a low-side output channel. Each channel has an individual power MOSFET output and is driven by a dedicated control input connected to an open-drain P-channel MOSFET. The low-side output voltage is clamped to ground and the high-side output voltage is clamped to the inverting input. The IR1167ASTRPBF is designed to be powered with a single 5V supply, and it can tolerate supply voltages up to 10V and down to 4V.

The external bias voltage and current sensing circuits of the IR1167ASTRPBF enable the device to develop the gate drive voltage required by the power MOSFETs. This allows the device to operate even at low input voltage levels resulting in low power dissipation and increased efficiency. Additionally, the external bias resistor can be adjusted to set the off-time for the control register and the speed of switching for the high-side MOSFET. The IR1167ASTRPBF also includes an indication output (LED) which is used to indicate when the device is turned on. This is useful for monitoring the status of the power circuitry.

The application field for the IR1167ASTRPBF includes automotive, industrial, and commercial applications. For example, it can be used in motor control, power conversion, and power supplies. The device is also used in AC/DC converters, DC/DC converters, uninterruptible power supplies, telecommunications systems, and medical application. The device can also be used in automotive systems such as engine control, body control, and lighting control. Additionally, it can be used in brushless DC motor drive, lighting control, wiring harness control, and industrial motor drive.

The IR1167ASTRPBF is compatible with various integrated circuits such as microcontrollers and digital signal controllers. The operating temperature range is -40°C to +125°C, making it suitable for a wide range of applications. In addition, the device is available in a variety of package types such as DIP, SOIC, SSOP, and TSSOP, making the device easier to use with other discrete components. By combining the IR1167ASTRPBF with other components, designers can build reliable and efficient systems.

The working principle of the IR1167ASTRPBF is quite straightforward. The device takes the control signal at the input and amplifies it to drive the MOSFETs. The power MOSFET at the output is activated to a high level when the control signal at the input is high and it is turned off when the control signal is low. The current sensing circuits of the device sense the current of the load and adjust the voltage of the power MOSFET accordingly. The device also includes an internal voltage regulator to ensure reliable operation of the device.

The IR1167ASTRPBF is an integrated device that offers several advantages to designers. It simplifies the design significantly by reducing the components and board space required for the circuit. Additionally, the device dissipates very low power, increasing the efficiency of the circuit. Additionally, the device has a wide range of operating voltage, temperature, and package types. All of these features make the IR1167ASTRPBF an ideal choice for many applications.

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