UCC21520-Q1

• Qualified for automotive applications
• AEC-Q100 qualified with the following results
  • Device temperature grade 1
  • Device HBM ESD classification level H2
  • Device CDM ESD classification level C6
• Functional safety quality-managed
  • Documentation available to aid functional safety system design
• Operating temperature range –40 to +125°C
• Switching parameters:
  • 19-ns typical propagation delay
  • 10-ns minimum pulse width
  • 5-ns maximum delay matching
  • 6-ns maximum pulse-width distortion
• Common-mode transient immunity (CMTI) greater than 100 V/ns
• Surge immunity up to 12.8 kV
• Isolation barrier life >40 years
• 4-A peak source, 6-A peak sink output
• 3-V to 18-V input VCCI range to interface with both digital and analog controllers
• Up to 25-V VDD output drive supply
  • 5-V and 8-V VDD UVLO options
• Programmable overlap and dead time
• Rejects input pulses and noise transients shorter than 5 ns
• Fast disable for power sequencing
• Safety-related certifications:
  • 8000-V_PK reinforced Isolation per DIN V VDE V 0884-11:2017-01
  • 5.7-kV_RMS isolation for 1 minute per UL 1577
  • CSA certification per IEC 60950-1, IEC 62368-1, IEC 61010-1 and IEC 60601-1 end equipment standards
  • CQC certification per GB4943.1-2011

The UCC21520-Q1 is an isolated dual-channel gate drivers with 4-A source and 6-A sink peak current. It is designed to drive power MOSFETs, IGBTs, and SiC MOSFETs up to 5-MHz with best-in-class propagation delay and pulse-width distortion.

The input side is isolated from the two output drivers by a 5.7-kV_RMS reinforced isolation barrier, with a minimum of 100-V/ns common-mode transient immunity (CMTI). Internal functional isolation between the two secondary-side drivers allows a working voltage of up to 1500 V_DC.

Every driver can be configured as two low-side drivers, two high-side drivers, or a half-bridge driver with programmable dead time (DT). A disable pin shuts down both outputs simultaneously, and allows normal operation when left open or grounded. As a fail-safe measure, primary-side logic failures force both outputs low.

Each device accepts VDD supply voltages up to 25 V. A wide input VCCI range from 3 V to 18 V makes the driver suitable for interfacing with both analog and digital controllers. All supply voltage pins have under voltage lock-out (UVLO) protection.

With all these advanced features, the UCC21520-Q1 enables high efficiency, high power density, and robustness.