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描述
The UCC21225A is an isolated dual-channel gate driver with 4-A source and 6-A sink peak current in a space-saving 5 mm x 5 mm LGA-13 package. 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, in applications requiring the highest power density.
The input side is isolated from the two output drivers by a 2.5-kVRMSreinforced 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 700-VDC.
This 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 when it is set high, and allows normal operation when left open or grounded. As a fail-safe measure, primary-side logic failures force both outputs low.
The 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 the supply voltage pins have under voltage lock-out (UVLO) protection.
With all these advanced features, the UCC21225A enables high power density, high efficiency, and robustness in a wide variety of power applications.
特性
Universal: Dual Low-Side, Dual High-Side or Half-Bridge Driver
5 x 5 mm, Space-Saving LGA-13 Package
Operating Temperature Range –40°C 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 4600-V
4-A Peak Source, 6-A Peak Sink Output
TTL and CMOS Compatible Inputs
3-V to 18-V Input VCCI Range to Interface with Both Digital and Analog Controllers
Up to 25-V VDD Output Drive Supply with 5-V UVLO
Programmable Dead Time
Rejects Input Pulses and Noise Transients Shorter than 5-ns
Fast Disable for Power Sequencing
Safety-Related and Regulatory Approvals:
3535-VPK Isolation per DIN V VDE V 0884-10 and DIN EN 61010-1 (Planned)
2500-VRMS Isolation for 1 Minute per UL 1577 (Planned)
CSA Component Acceptance Notice 5A, IEC 60950-1 IEC 61010-1 End Equipment Standards (Planned)
CQC Certification per GB4943.1-2011 (Planned)
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