Model No: UCC21750QDWRQ1
Texas Instruments UCC21750QDWRQ1
Manufacturer: Texas Instruments
SEMICON NO.: UCC21750QDWRQ1
Package: 16-SOIC
Stock: In stock
Description: Gate Driver Capacitive Coupling 10A 5700Vrms
SEMICON NO.: UCC21750QDWRQ1
Package: 16-SOIC
Stock: In stock
Description: Gate Driver Capacitive Coupling 10A 5700Vrms
Quantity :
| Mfr | Texas Instruments |
| Device Type | Reinforced Isolated Single Channel Gate Driver |
| Isolation Technology | Capacitive Coupling |
| Withstand Isolation Voltage | 5700 V |
| Working Isolation Voltage | 2121 V |
| Transient Isolation Voltage | 8000 V |
| Common Mode Transient Immunity (CMTI) | 150 kV/µs (Min) |
| Creepage / Clearance (Min) | > 8.0 mm |
| Number of Channels | 1 |
| Output Configuration | High-Side or Low-Side |
| Peak Output Current (Source/Sink) | ±10 A |
| Output Drive Voltage (VDD – VEE) | 13 V to 33 V |
| Input Supply Voltage (VCC) | 3 V to 5.5 V |
| Operating Temperature | -40°C to +150°C |
| Package | 16-SOIC |
| Mounting Type | Surface Mount |
| Compliance | RoHS Compliant |
The UCC21750QDWRQ1 is a single-channel, reinforced isolated gate driver from Texas Instruments, designed for driving SiC MOSFETs and IGBTs in high-power, high-voltage automotive and industrial applications. Qualified to AEC-Q100 Grade 1 standards, it integrates advanced protection features and isolated analog sensing, all while offering high reliability with a 5.7 kVrms isolation rating. It is delivered in a wide-body SOIC (DWR) package with a wettable flank option for enhanced solder joint inspection.
Key Features and Highlights:
● Reinforced Galvanic Isolation: Provides 5.7 kVrms basic isolation and 1500 Vrms working voltage for 1 minute, ensuring safe and reliable operation in high-voltage systems by separating the low-voltage control side from the high-voltage power stage.
● High Peak Output Current: Delivers a peak source/sink current of 10 A, enabling fast switching of power transistors to minimize switching losses and improve efficiency in high-frequency applications.
● Integrated Active Protection: Features desaturation (DESAT) detection for short-circuit protection, an active Miller clamp to prevent parasitic turn-on, and soft turn-off (STO) during faults, enhancing system robustness and safety.
● Isolated Analog Sensing: Incorporates an isolated analog-to-PWM sensor interface that allows the driver to transmit an analog signal (e.g., collector-emitter voltage) across the isolation barrier as a PWM signal, enabling real-time monitoring without additional isolators.
● High Common-Mode Transient Immunity (CMTI): Offers a minimum CMTI of 100 kV/µs, ensuring stable operation in noisy switching environments and preventing false triggering of the output stage.
Frequently Asked Questions (FAQ):
Q1: What is the purpose of the active Miller clamp feature?
A: The active Miller clamp prevents the power switch from turning on unintentionally due to high dv/dt (voltage slew rate) during switching, which can induce a current through the Miller capacitance. It actively clamps the gate to the source/emitter voltage during off-states, enhancing switching reliability.
Q2: How does the DESAT protection work?
A: The DESAT (Desaturation) protection monitors the collector-emitter voltage of the IGBT or drain-source voltage of the MOSFET during the on-state. If this voltage exceeds a programmed threshold (indicating a short-circuit or overcurrent), the driver initiates a controlled soft turn-off to protect the power device.
Compatible Alternative automotive gate driver List
● UCC21750DW: The industrial-grade, non-AEC-Q100 version of the same driver, suitable for applications not requiring automotive qualification.
● ADuM4135: A single-channel, isolated IGBT gate driver from Analog Devices with similar peak current (4.5 A) and integrated DESAT protection, offering a cross-vendor alternative.
● Si8239x: A family of isolated gate drivers from Skyworks (formerly Silicon Labs) with high CMTI and integrated protection features, available in various channel configurations and current ratings.
● 1ED38x0MC12N: A single-channel, reinforced isolated gate driver from Infineon with high output current (up to 10 A) and active clamping, designed for SiC and IGBT applications.
● Reinforced Galvanic Isolation: Provides 5.7 kVrms basic isolation and 1500 Vrms working voltage for 1 minute, ensuring safe and reliable operation in high-voltage systems by separating the low-voltage control side from the high-voltage power stage.
● High Peak Output Current: Delivers a peak source/sink current of 10 A, enabling fast switching of power transistors to minimize switching losses and improve efficiency in high-frequency applications.
● Integrated Active Protection: Features desaturation (DESAT) detection for short-circuit protection, an active Miller clamp to prevent parasitic turn-on, and soft turn-off (STO) during faults, enhancing system robustness and safety.
● Isolated Analog Sensing: Incorporates an isolated analog-to-PWM sensor interface that allows the driver to transmit an analog signal (e.g., collector-emitter voltage) across the isolation barrier as a PWM signal, enabling real-time monitoring without additional isolators.
● High Common-Mode Transient Immunity (CMTI): Offers a minimum CMTI of 100 kV/µs, ensuring stable operation in noisy switching environments and preventing false triggering of the output stage.
Frequently Asked Questions (FAQ):
Q1: What is the purpose of the active Miller clamp feature?
A: The active Miller clamp prevents the power switch from turning on unintentionally due to high dv/dt (voltage slew rate) during switching, which can induce a current through the Miller capacitance. It actively clamps the gate to the source/emitter voltage during off-states, enhancing switching reliability.
Q2: How does the DESAT protection work?
A: The DESAT (Desaturation) protection monitors the collector-emitter voltage of the IGBT or drain-source voltage of the MOSFET during the on-state. If this voltage exceeds a programmed threshold (indicating a short-circuit or overcurrent), the driver initiates a controlled soft turn-off to protect the power device.
Compatible Alternative automotive gate driver List
● UCC21750DW: The industrial-grade, non-AEC-Q100 version of the same driver, suitable for applications not requiring automotive qualification.
● ADuM4135: A single-channel, isolated IGBT gate driver from Analog Devices with similar peak current (4.5 A) and integrated DESAT protection, offering a cross-vendor alternative.
● Si8239x: A family of isolated gate drivers from Skyworks (formerly Silicon Labs) with high CMTI and integrated protection features, available in various channel configurations and current ratings.
● 1ED38x0MC12N: A single-channel, reinforced isolated gate driver from Infineon with high output current (up to 10 A) and active clamping, designed for SiC and IGBT applications.
