IR2104STRPBF Detailed explanation of pin function specifications and circuit principle instructions
The part number "IR2104STRPBF" corresponds to an IR (International Rectifier) component. It is a high- and low-side driver IC, often used for driving MOSFETs or IGBTs in various power conversion applications such as motor control, power supplies, and inverters.
Package:
The IR2104 typically comes in a SOIC-8 (Small Outline Integrated Circuit) package. This means it has 8 pins.Pin Function Specifications:
Here is a detailed explanation of the pin functions for the IR2104 in the SOIC-8 package.
Pin Number Pin Name Pin Description 1 VSS Ground Pin: Connects to the ground of the system. This pin is used as a reference for the logic circuit of the IC. 2 VDD Positive Supply Voltage Pin: This pin supplies power to the logic section of the driver, typically between 10V to 20V depending on the application. 3 HIN High-Side Input: This is the control input for the high-side driver. A logic signal applied here will turn on the high-side MOSFET or IGBT. 4 LIN Low-Side Input: This is the control input for the low-side driver. A logic signal applied here will turn on the low-side MOSFET or IGBT. 5 COM Common Pin: It is connected to the source of the low-side MOSFET or IGBT and is the reference for the low-side driver. 6 HO High-Side Output: This pin provides the output signal to drive the gate of the high-side MOSFET or IGBT. It is connected to the gate of the high-side transistor . 7 LO Low-Side Output: This pin provides the output signal to drive the gate of the low-side MOSFET or IGBT. It is connected to the gate of the low-side transistor. 8 VB Bootstrap Pin: This pin is used to power the high-side driver. A bootstrap capacitor is connected between this pin and the COM pin to allow proper high-side operation.Circuit Principle and Usage:
VDD Pin (Pin 2) powers the internal logic and must be provided with a supply voltage, typically between 10V to 20V. The VSS Pin (Pin 1) is connected to the system ground, serving as a reference point for both logic and drive signals. HIN Pin (Pin 3) and LIN Pin (Pin 4) receive control signals. These are typically PWM signals that control the MOSFETs or IGBTs. The HO Pin (Pin 6) and LO Pin (Pin 7) are the outputs that provide gate drive signals to the high- and low-side MOSFETs or IGBTs. COM Pin (Pin 5) is the common ground for the low-side driver and the source of the low-side MOSFET or IGBT. The VB Pin (Pin 8) is used to supply voltage to the high-side driver, ensuring the high-side MOSFET can be fully switched on.20 FAQ for the IR2104STRPBF
Q: What is the IR2104STRPBF? A: The IR2104STRPBF is a high- and low-side MOSFET and IGBT driver IC, commonly used in motor control, power supply, and inverter applications. Q: What is the operating voltage range for the IR2104? A: The operating voltage range for the IR2104 is typically 10V to 20V for the VDD pin. Q: How many pins does the IR2104 have? A: The IR2104 comes in an 8-pin SOIC package. Q: What are the function pins of the IR2104? A: The IR2104 has the following pins: VSS, VDD, HIN, LIN, COM, HO, LO, and VB. Q: What is the purpose of the VB pin on the IR2104? A: The VB pin is used to power the high-side driver and requires a bootstrap capacitor to function properly. Q: How do the HIN and LIN pins work? A: The HIN and LIN pins receive the PWM signals that control the high- and low-side MOSFETs or IGBTs. Q: What is the COM pin used for in the IR2104? A: The COM pin is the common reference for the low-side driver and is connected to the source of the low-side MOSFET or IGBT. Q: How is the high-side MOSFET controlled? A: The high-side MOSFET is controlled by applying a logic signal to the HIN pin, and the gate drive signal is output at the HO pin. Q: How is the low-side MOSFET controlled? A: The low-side MOSFET is controlled by applying a logic signal to the LIN pin, and the gate drive signal is output at the LO pin.Q: What is the minimum voltage required for the IR2104 to operate?
A: The minimum voltage for the IR2104 to operate is around 10V on the VDD pin.Q: Can the IR2104 drive both MOSFETs and IGBTs?
A: Yes, the IR2104 is designed to drive both MOSFETs and IGBTs in high- and low-side configurations.Q: What is the function of the VDD pin?
A: The VDD pin supplies power to the internal logic of the IR2104.Q: Is there a specific way to connect the IR2104 to the MOSFETs?
A: Yes, the IR2104 must be connected in a manner where the HO pin drives the high-side MOSFET and the LO pin drives the low-side MOSFET, with proper connections to the VDD, VSS, and COM pins.Q: How does the IR2104 manage the gate voltage for the high-side MOSFET?
A: The IR2104 uses a bootstrap capacitor connected between the VB and COM pins to ensure the high-side MOSFET is driven with the required voltage.Q: What is the current driving capability of the IR2104?
A: The IR2104 can typically drive up to 2A of peak current on the HO and LO outputs.Q: Can the IR2104 be used for both single-phase and three-phase applications?
A: Yes, the IR2104 can be used in both single-phase and three-phase applications where high-side and low-side MOSFETs or IGBTs are required.Q: What is the role of the HIN and LIN pins in PWM control?
A: The HIN and LIN pins receive the PWM signals that control the switching of the MOSFETs or IGBTs, enabling efficient power conversion.Q: What type of capacitor is needed for the bootstrap circuit?
A: A small ceramic capacitor, typically in the range of 0.1µF to 1µF, is used for the bootstrap circuit between the VB and COM pins.Q: Can the IR2104 be used for high-power applications?
A: Yes, the IR2104 is capable of driving high-power MOSFETs or IGBTs, but the overall power capability will depend on the specific MOSFET or IGBT chosen.Q: What are the temperature limits of the IR2104?
A: The IR2104 has a typical operating temperature range of -40°C to +125°C.This explanation provides a detailed overview of the IR2104's pin functions, packaging, and usage. If you need further details or explanations, feel free to ask!