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UCC27284

ACTIVE

3-A, 120-V half bridge gate driver with 5-V UVLO and enable

Product details

Bus voltage (max) (V) 120 Power switch MOSFET Input VCC (min) (V) 5.5 Input VCC (max) (V) 16 Peak output current (A) 3.5 Operating temperature range (°C) -40 to 125 Undervoltage lockout (typ) (V) 5 Rating Catalog Propagation delay time (µs) 0.016 Rise time (ns) 12 Fall time (ns) 10 Iq (mA) 0.002 Input threshold TTL Channel input logic TTL Negative voltage handling at HS pin (V) -14 Features Enable Driver configuration Dual inputs
Bus voltage (max) (V) 120 Power switch MOSFET Input VCC (min) (V) 5.5 Input VCC (max) (V) 16 Peak output current (A) 3.5 Operating temperature range (°C) -40 to 125 Undervoltage lockout (typ) (V) 5 Rating Catalog Propagation delay time (µs) 0.016 Rise time (ns) 12 Fall time (ns) 10 Iq (mA) 0.002 Input threshold TTL Channel input logic TTL Negative voltage handling at HS pin (V) -14 Features Enable Driver configuration Dual inputs
VSON (DRC) 10 9 mm² 3 x 3 VSON (DRM) 8 16 mm² 4 x 4
  • Drives two N-channel MOSFETs in high-side low-side configuration
  • 5-V typical undervoltage lockout
  • Enable/disable functionality in DRC package
  • 16-ns typical propagation delay
  • 12-ns rise, 10-ns fall time with 1.8-nF load
  • 1-ns typical delay matching
  • 5-V negative voltage handling on inputs
  • 14-V negative voltage handling on HS
  • ±3-A peak output current
  • Absolute maximum boot voltage 120 V
  • Low current (7-µA) consumption when disabled
  • Integrated bootstrap diode
  • Specified from –40°C to 140°C junction temperature
  • Drives two N-channel MOSFETs in high-side low-side configuration
  • 5-V typical undervoltage lockout
  • Enable/disable functionality in DRC package
  • 16-ns typical propagation delay
  • 12-ns rise, 10-ns fall time with 1.8-nF load
  • 1-ns typical delay matching
  • 5-V negative voltage handling on inputs
  • 14-V negative voltage handling on HS
  • ±3-A peak output current
  • Absolute maximum boot voltage 120 V
  • Low current (7-µA) consumption when disabled
  • Integrated bootstrap diode
  • Specified from –40°C to 140°C junction temperature

The UCC27284 is a robust N-channel MOSFET driver with a maximum switch node (HS) voltage rating of 100 V. It allows for two N-channel MOSFETs to be controlled in half-bridge or synchronous buck configuration-based topologies. Its 3-A peak source and sink current along with low pull-up and pull-down resistance allows the UCC27284 to drive large power MOSFETs with minimum switching losses during the transition of the MOSFET Miller plateau. Since the inputs are independent of the supply voltage, UCC27284 can be used in conjunction with both analog and digital controllers. Two inputs, and therefore outputs, can be overlapped, if needed, in applications such as secondary side full-bridge synchronous rectification.

The input pins as well as the HS pin are able to tolerate significant negative voltage, which improves system robustness. The enable and disable functionality provides additional system flexibility by reducing the gate driver power consumption and quickly responds to fault events within the system. 5-V UVLO allows systems to operate at lower bias voltages, which is necessary in many high frequency applications and improves system efficiency in certain operating modes. Small propagation delay and delay matching specifications minimize the dead-time requirement which further improves efficiency.

Undervoltage lockout (UVLO) is provided for both the high-side and low-side driver stages forcing the outputs low if the VDD voltage is below the specified threshold. An integrated bootstrap diode eliminates the need for an external discrete diode in many applications, which saves board space and reduces system cost. UCC27284 is offered in a small package enabling high density designs.

The UCC27284 is a robust N-channel MOSFET driver with a maximum switch node (HS) voltage rating of 100 V. It allows for two N-channel MOSFETs to be controlled in half-bridge or synchronous buck configuration-based topologies. Its 3-A peak source and sink current along with low pull-up and pull-down resistance allows the UCC27284 to drive large power MOSFETs with minimum switching losses during the transition of the MOSFET Miller plateau. Since the inputs are independent of the supply voltage, UCC27284 can be used in conjunction with both analog and digital controllers. Two inputs, and therefore outputs, can be overlapped, if needed, in applications such as secondary side full-bridge synchronous rectification.

The input pins as well as the HS pin are able to tolerate significant negative voltage, which improves system robustness. The enable and disable functionality provides additional system flexibility by reducing the gate driver power consumption and quickly responds to fault events within the system. 5-V UVLO allows systems to operate at lower bias voltages, which is necessary in many high frequency applications and improves system efficiency in certain operating modes. Small propagation delay and delay matching specifications minimize the dead-time requirement which further improves efficiency.

Undervoltage lockout (UVLO) is provided for both the high-side and low-side driver stages forcing the outputs low if the VDD voltage is below the specified threshold. An integrated bootstrap diode eliminates the need for an external discrete diode in many applications, which saves board space and reduces system cost. UCC27284 is offered in a small package enabling high density designs.

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Technical documentation

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Type Title Date
* Data sheet UCC27284 3-A 120-V Half-Bridge Driver with Negative Voltage Handling and Low Switching Losses datasheet (Rev. B) PDF | HTML 25 Jan 2022
Application note Understanding and comparing peak current capability of gate drivers PDF | HTML 30 Mar 2021
More literature Troubleshooting gate drive circuits in automotive and industrial applications 23 Mar 2021
Application note Implementing High-Side Switches Using Half-Bridge Gate Drivers for 48-V Battery. 12 May 2020

Design & development

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

Evaluation board

UCC27282EVM-335 — UCC27282 120-V, 3-A, 5-V UVLO high-side low-side gate driver evaluation module

UCC27282EVM-335 is designed for evaluating UCC27282DRC, which is a 120V half bridge gate driver with high source and sink peak current capability. This EVM could be served to evaluate the driver IC against its datasheet. The EVM can also be used as Driver IC component selection guide. The EVM can (...)
User guide: PDF
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Simulation model

UCC27284 PSpice Transient Model

SLUM721.ZIP (5 KB) - PSpice Model
Calculation tool

SLURB12 UCC272xx Schematic Review Template

Supported products & hardware

Supported products & hardware

Products
Half-bridge drivers
UCC27200 3-A, 120-V half bridge gate driver with 8-V UVLO and CMOS inputs UCC27200-Q1 Automotive 3-A, 120-V half bridge gate driver with 8-V UVLO and CMOS inputs UCC27200A 3-A, 120-V half bridge gate driver with 8-V UVLO, negative voltage handling and CMOS inputs UCC27201 3-A, 120-V half bridge gate driver with 8-V UVLO and TTL inputs UCC27201A 3-A, 120-V half bridge gate driver with 8-V UVLO and negative voltage handling UCC27201A-DIE 120V Boot, 3-A Peak, High Frequency, High-Side/Low-Side Driver UCC27201A-Q1 Automotive 3-A, 120-V half bridge gate driver with 8-V UVLO and negative voltage handling UCC27210 4-A, 120-V half bridge gate driver with 8-V UVLO and CMOS inputs UCC27211 4-A, 120-V half bridge gate driver with 8-V UVLO and TTL inputs UCC27211A 4-A, 120-V half bridge gate driver with 8-V UVLO and negative voltage handling UCC27211A-Q1 Automotive 4-A, 120-V half bridge gate driver with 8-V UVLO and negative voltage handling UCC27212 4-A, 120-V half bridge gate driver with 5-V UVLO and negative voltage handling UCC27212A-Q1 Automotive, 4-A , 120-V half bridge gate driver with 5-V UVLO UCC27282 3-A, 120-V half-bridge gate driver with 5-V UVLO, interlock and enable UCC27282-Q1 Automotive 3-A, 120-V half bridge driver with 5-V UVLO, interlock and enable UCC27284 3-A, 120-V half bridge gate driver with 5-V UVLO and enable UCC27284-Q1 Automotive 3-A, 120-V half bridge gate driver with 5-V UVLO UCC27288 2.5-A to 3.5-A 120-V half-bridge driver with 8-V UVLO and no internal bootstrap diode UCC27289 2.5-A to 3.5-A, 120-V half bridge gate driver with 8-V UVLO and enable
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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 (...)
Reference designs

TIDA-050022 — Power stage reference design for <100-VIN DC/DC converters

This reference design implements a high frequency power stage design based on the UCC27282 120-V half-bridge MOSFET driver and CSD19531 100-V power MOSFETs. With efficient switches and flexible VGS operating range, this design can reduce overall gate drive and conduction losses to achieve (...)
Design guide: PDF
Schematic: PDF
Reference designs

PMP4320A — 600W Half Brick DC/DC Converter with Digital Control for Telecom Applications Reference Design

The PMP4320A reference design is a single output DC-DC converter with standard half-brick dimensions and full digital control configuration based on the UCD3138.  It is capable of delivering 50A output current with an output voltage of 12V.  The converter provides high efficiency and good (...)
Test report: PDF
Schematic: PDF
Package Pins Download
VSON (DRC) 10 View options
VSON (DRM) 8 View options

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