The part number "UCC21530QDWKRQ1" corresponds to a product from Texas Instruments. It is a dual-channel gate driver used primarily for driving MOSFETs and IGBTs in power conversion applications.
Package Type:
The UCC21530QDWKRQ1 comes in a WQFN-20 package, which means it has 20 pins. Below is the detailed description of all 20 pins and their functions:
Pin Function List:
Pin Number Pin Name Pin Function Description 1 VDD Positive supply voltage for the device. Supplies power to the internal circuitry. 2 VSS Ground reference for the device, typically connected to the system ground. 3 IN1 Input signal for channel 1. This pin is used to control the gate of the high-side MOSFET or IGBT in channel 1. 4 IN2 Input signal for channel 2. Similar to IN1, it controls the gate of the high-side MOSFET or IGBT in channel 2. 5 EN1 Enable pin for channel 1. When low, this pin disables the gate driver for channel 1. 6 EN2 Enable pin for channel 2. When low, this pin disables the gate driver for channel 2. 7 L1 Logic output for channel 1. Drives the gate of the low-side MOSFET or IGBT in channel 1. 8 L2 Logic output for channel 2. Drives the gate of the low-side MOSFET or IGBT in channel 2. 9 COM1 Common pin for channel 1. Used for the low-side gate drive return and logic ground for channel 1. 10 COM2 Common pin for channel 2. Used for the low-side gate drive return and logic ground for channel 2. 11 VDD1 Positive supply voltage for channel 1. Supplies power to the high-side gate driver for channel 1. 12 VDD2 Positive supply voltage for channel 2. Supplies power to the high-side gate driver for channel 2. 13 LO1 Logic output for channel 1. Drives the low-side MOSFET or IGBT in channel 1. 14 LO2 Logic output for channel 2. Drives the low-side MOSFET or IGBT in channel 2. 15 HI1 High-side gate driver output for channel 1. Connects to the gate of the high-side MOSFET or IGBT in channel 1. 16 HI2 High-side gate driver output for channel 2. Connects to the gate of the high-side MOSFET or IGBT in channel 2. 17 UVLO1 Undervoltage lockout pin for channel 1. This pin prevents the driver from turning on if the supply voltage is too low. 18 UVLO2 Undervoltage lockout pin for channel 2. Similar to UVLO1, this pin ensures safe operation by disabling the driver if the supply voltage is too low. 19 SD1 Shutdown pin for channel 1. When this pin is low, it disables the gate driver for channel 1. 20 SD2 Shutdown pin for channel 2. When this pin is low, it disables the gate driver for channel 2.Circuit Principle:
The UCC21530QDWKRQ1 is designed to drive both high-side and low-side MOSFETs or IGBTs in a half-bridge or full-bridge configuration for power conversion systems. It features a dual-channel configuration, meaning it can drive two separate switches in the system. The device is controlled via two input pins (IN1 and IN2) and features independent enable and shutdown pins for each channel.
The outputs, HI1 and HI2, are designed to drive the gates of high-side transistor s, and LO1 and LO2 control the gates of low-side transistors. The VDD and VSS pins are used for the power supply of the internal circuits, while VDD1 and VDD2 are specific for powering the high-side drivers.
The undervoltage lockout (UVLO1 and UVLO2) ensures that the device only operates when the supply voltage is within safe levels. COM1 and COM2 provide the return paths for the low-side drivers.
FAQ (20 Common Questions & Answers)
Q: What is the UCC21530QDWKRQ1 used for? A: The UCC21530QDWKRQ1 is a dual-channel gate driver used to control the switching of MOSFETs and IGBTs in power conversion systems.
Q: How many pins does the UCC21530QDWKRQ1 have? A: The UCC21530QDWKRQ1 comes in a WQFN-20 package, which has 20 pins.
Q: What is the voltage range for the VDD pins on the UCC21530QDWKRQ1? A: The VDD pins (pins 1 and 2) require a voltage in the range of 4.5V to 18V.
Q: What is the function of the HI1 and HI2 pins? A: HI1 and HI2 are the high-side driver outputs for channels 1 and 2, respectively. They drive the gates of the high-side MOSFET or IGBT.
Q: How does the UVLO function in the UCC21530QDWKRQ1 work? A: The UVLO1 and UVLO2 pins prevent the gate driver from turning on if the supply voltage is too low, ensuring safe operation.
Q: Can the UCC21530QDWKRQ1 be used for driving only one channel? A: Yes, the device can be used for driving just one channel by disabling the other channel via the enable pins (EN1, EN2).
Q: What is the purpose of the SD1 and SD2 pins? A: The SD1 and SD2 pins are shutdown pins that disable the gate driver for their respective channels when pulled low.
Q: How do the COM1 and COM2 pins function? A: The COM1 and COM2 pins serve as the ground reference for the low-side gate driver of channels 1 and 2.
Q: Is there any protection against overvoltage in the UCC21530QDWKRQ1? A: The device has built-in undervoltage lockout (UVLO) protection but does not have explicit overvoltage protection.
Q: What is the pin configuration of the UCC21530QDWKRQ1? A: The UCC21530QDWKRQ1 comes in a WQFN-20 package with 20 pins, including logic inputs, gate driver outputs, enable, shutdown, and supply pins.
Q: How is the high-side gate driver powered? A: The high-side gate drivers (HI1, HI2) are powered through the VDD1 and VDD2 pins.
Q: How does the UCC21530QDWKRQ1 manage gate drive signal isolation? A: The device uses a transformer-based approach to ensure proper isolation between the high-side and low-side drivers.
Q: What is the logic level requirement for the input pins (IN1, IN2)? A: The input pins (IN1, IN2) require a logic-level signal (0V for logic low, VDD for logic high).
Q: Can the UCC21530QDWKRQ1 be used in automotive applications? A: Yes, the UCC21530QDWKRQ1 is AEC-Q100 qualified and can be used in automotive applications.
Q: How much current can the UCC21530QDWKRQ1 drive? A: The device can drive gate currents up to 5A for the low-side and 3A for the high-side.
Q: What is the maximum operating temperature for the UCC21530QDWKRQ1? A: The device has an operating temperature range of -40°C to 125°C.
Q: What type of package does the UCC21530QDWKRQ1 come in? A: The UCC21530QDWKRQ1 comes in a WQFN-20 package.
Q: How is the UCC21530QDWKRQ1 mounted on a PCB? A: The device is surface-mountable and requires appropriate pad layout for a WQFN package.
Q: What are the logic threshold levels for IN1 and IN2? A: The logic high threshold is typically 2V, and the logic low threshold is typically 0.8V.
Q: Is the UCC21530QDWKRQ1 suitable for high-frequency switching? A: Yes, the device is capable of driving high-frequency switching applications, making it suitable for fast switching power supplies and inverters.
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