The input side is isolated from the two output drivers by a 5.7kVRMS reinforced isolation barrier, with a minimum of 100V/ns common-mode transient immunity (CMTI). Internal functional isolation between the two secondary-side drivers allows a working voltage of up to 1500VDC.
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 25V. A wide input VCCI range from 3 to 18V 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.
Features
- 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
- Universal: Dual Low-Side, Dual High-Side or Half-Bridge Driver
- Operating Temperature Range -40 to +125°C
- Switching Parameters:
- 19ns Typical Propagation Delay
- 10ns Minimum Pulse Width
- 5ns Maximum Delay Matching
- 6ns Maximum Pulse-Width Distortion
- Common-Mode Transient Immunity (CMTI) Greater than 100V/ns
- Surge Immunity up to 12.8kV
- Isolation Barrier Life more than 40 Years
- 4A Peak Source, 6-A Peak Sink Output
- TTL and CMOS Compatible Inputs
- 3 to 18V Input VCCI Range to Interface with Both Digital and Analog Controllers
- Up to 25V VDD Output Drive Supply
- 5 and 8V 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:
- 8000VPK Reinforced Isolation per DIN V VDE V 0884-11:2017-01
- 5.7kVRMS 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
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