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Product details

Parameters

Number of channels (#) 2 Isolation rating (Vrms) 2500 Power switch MOSFET, GaNFET Peak output current (A) 6 DIN V VDE V 0884-10 transient overvoltage rating (Vpk) 3535 DIN V VDE V 0884-10 working voltage (Vpk) 792 Enable/disable function Disable Output VCC/VDD (Max) (V) 25 Output VCC/VDD (Min) (V) 6.5 Input VCC (Min) (V) 3 Input VCC (Max) (V) 18 Prop delay (ns) 19 Operating temperature range (C) -40 to 125 open-in-new Find other Isolated gate drivers

Package | Pins | Size

VLGA (NPL) 13 25 mm² 5 x 5 open-in-new Find other Isolated gate drivers

Features

  • Universal: Dual Low-Side, Dual High-Side or Half-Bridge Driver
  • 5 x 5 mm, Space-Saving LGA-13 Package
  • Switching Parameters:
    • 19-ns Typical Propagation Delay
    • 5-ns Maximum Delay Matching
    • 6-ns Maximum Pulse-Width Distortion
  • CMTI Greater than 100-V/ns
  • 4-A Peak Source, 6-A Peak Sink Output
  • TTL and CMOS Compatible Inputs
  • 3-V to 18-V Input VCCI Range
  • Up to 25-V VDD with 5-V UVLO
  • Programmable Overlap and Dead Time
  • Rejects Input Transients Shorter than 5-ns
  • Fast Disable for Power Sequencing
  • Safety-Related Certifications:
    • 3535-VPK Isolation per DIN V VDE V 0884-11:2017-01
    • 2500-VRMS Isolation for 1 Minute per UL 1577
    • CQC per GB4943.1-2011 (Planned)

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Description

The UCC21225A is an isolated dual-channel gate driver with 4-A source and 6-A sink peak current in a 5-mm x 5-mm LGA-13 package. It is designed to drive power transistors 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 2.5-kVRMS isolation barrier, with 100-V/ns minimum common-mode transient immunity (CMTI). Internal functional isolation between the two secondary side drivers allows working voltage up to 700-VDC.

This driver can be configured as two low-side, two high-side, 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.

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.

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Technical documentation

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Type Title Date
* Datasheet UCC21225A 4-A, 6-A, 2.5-kVRMS Isolated Dual-Channel Gate Driver in LGA datasheet (Rev. A) Feb. 07, 2018
Application notes External Gate Resistor Selection Guide (Rev. A) Feb. 28, 2020
Application notes Understanding Peak IOH and IOL Currents (Rev. A) Feb. 28, 2020
More literature VDE certificate for basic isolation for DIN VDE V 0884-11:2017-01 (Rev. Q) Sep. 20, 2019
Application notes How to Drive High Voltage GaN FETs with UCC21220A Mar. 06, 2019
Technical articles How to achieve higher system robustness in DC drives, part 3: minimum input pulse Sep. 19, 2018
More literature UL Certification E181974 Vol 4. Sec 8 (Rev. A) Jul. 23, 2018
Technical articles How to achieve higher system robustness in DC drives, part 2: interlock and deadtime May 30, 2018
Technical articles Boosting efficiency for your solar inverter designs May 24, 2018
Technical articles How to achieve higher system robustness in DC drives, part 1: negative voltage Apr. 17, 2018
More literature CQC Product Certificate 2 Feb. 07, 2018
User guides Using the UCC21225AEVM-365 Mar. 14, 2017

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
document-generic User guide
49
Description
UCC21225AEVM-365 is designed for evaluating UCC21225ANPL, which is an isolated dual-channel gate driver with 4-A source and 6-A sink peak current capability in a 5x5 LGA package. This EVM can be used as a reference design for driving power MOSFETs, IGBTs, and SiC MOSFETs with UCC21225A pin function (...)
Features
  • High Performance Isolated Driver
  • Ability to test almost all low voltage datasheet parameters

Design tools & simulation

SIMULATION MODELS Download
SLUM574.ZIP (55 KB) - PSpice Model
SIMULATION MODELS Download
SLUM575.ZIP (4 KB) - PSpice Model
SIMULATION TOOLS Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

Reference designs

REFERENCE DESIGNS Download
Inverting buck-boost reference design
PMP20587 — This reference design uses UCD3138064A as a digital controller to control two-phase two-rail inverting buck-boost. This non-isolated converter is used for wireless radio power. The input voltage is from -35 V to -60 V. There are two outputs. The default output voltage of rail 1 is 32 V and max (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
48-V / 25-A negative-to-positive synchronous buck-boost reference design for power amplifiers
PMP21943 — This reference design is a negative-to-positive synchronous buck-boost converter for power amplifier applications. The circuit is powered from the nominal -48-V system source to provide an output voltage of +48 V at 25 A. The design uses two dual synchronous boost controllers for 4-phase operation (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
VLGA (NPL) 13 View options

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