UCC25600

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8-pin high-performance resonant mode LLC controller

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Product details

Parameters

Topology Half-Bridge, Resonant LLC Control method Voltage VCC (Min) (V) 11 VCC (Max) (V) 18 Duty cycle (Max) (%) 50 Frequency (Max) (kHz) 350 Operating temperature range (C) -40 to 125 Gate drive (Typ) (A) 0.8 Features Thermal Shutdown Rating Catalog open-in-new Find other PWM controllers & resonant controllers

Package | Pins | Size

SOIC (D) 8 19 mm² 3.91 x 4.9 open-in-new Find other PWM controllers & resonant controllers

Features

  • Variable Switching Frequency Control
  • Programmable Minimum Switching Frequency
    With 4% Accuracy (3% Accuracy at Temperature
    Range: –20°C to 105°C)
  • Programmable Maximum Switching Frequency
  • Programmable Dead Time for Best Efficiency
  • Programmable Soft-Start Time
  • Easy ON and OFF Control
  • Overcurrent Protection
  • Overtemperature Protection
  • Bias Voltage UVLO and Overvoltage Protection
  • Integrated Gate Driver With 0.4-A Source and 0.8-
    A Sink Capability
  • Operating Temperature Range: –40°C to 125°C
  • SOIC 8-Pin Package
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Description

The UCC25600 high performance, resonant mode controller is designed for dc-to-dc applications using resonant topologies, especially the LLC half-bridge resonant converter. This highly integrated controller implements frequency modulation control and complete system functions in only an 8-pin package. Switching to the UCC25600 will greatly simplify the system design and layout, and improve time to market, all at a price point lower than competitive 16-pin device offerings.

The internal oscillator supports the switching frequencies from 40 kHz to 350 kHz. This high-accuracy oscillator realizes the minimum switching frequency limiting with 4% tolerance, allowing the designer to avoid over-design of the power stage and, thus, further reducing overall system cost. The programmable dead time enables zero-voltage switching with minimum magnetizing current. This maximizes system efficiency across a variety of applications. The programmable soft-start timer maximizes design flexibility demanded by the varied requirements of end equipment using a half-bridge topology. By incorporating a 0.4-A source and 0.8-A sink driving capability, a low cost, reliable gate driver transformer is a real option.

The UCC25600 delivers complete system protection functions including overcurrent, UVLO, bias supply OVP, and overtemperature protection.

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Technical documentation

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
$799.00
Description

The UCC25600 evaluation module, EVM (HPA341), is a 300 W LLC resonant half-bridge converter, providing a regulated output voltage nominally at 12 V at maximum 300 W of load power with reinforced isolation of AC-DC off-line application between the primary and the secondary, operating (...)

Features
  • 300 W Output Power Rating
  • High Efficiency 92% Peak and Over 91% at Full Load
  • Regulated Output Nominal of 12 V
  • Input DC Voltage of 390 V
  • Plenty of Test Points to Facilitate the Device Evaluation
  • Over-Current Protection
  • Output Over-Voltage Protection
  • Burst Operation at Light Load

Design tools & simulation

SIMULATION MODELS Download
SLUM401.ZIP (98 KB) - PSpice Model
SIMULATION MODELS Download
SLUM425.TSC (262 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SLUM426.ZIP (34 KB) - TINA-TI Spice Model
CALCULATION TOOLS Download
Free Tool: Design Calculation Tool for Converters using UCC25600
UCC25600-DESIGN-CALC The UCC25600 Design Tool is an Excel Spreadsheet based calculation sheet to help design an LLC half bridge converter using UCC25600. The tool helps design the power stage and program the IC setup parameters. The power stage design includes resonant tank, primary and secondary switches and magnetic (...)
CALCULATION TOOLS Download
SLUC146.ZIP (175 KB)

Reference designs

REFERENCE DESIGNS Download
350W PSU with Universal AC Input and 28V Output - Reference Design
PMP9531 High efficiency, high power factor and reliable power supply are the main focus of the PMP9531 design for motor driver applications.  Transition mode (TM) power factor correction (PFC) with UCC28051 and LLC series resonant converter (SRC) with UCC25600 are applied in PMP9531.  In addition (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
High Efficiency 400W AC/DC Power Supply Reference Design
PMP11064 PMP11064 is a high-efficiency AC/DC power supply reference design with universal AC input and 20V/20A output. Interleaved transition mode PFC and LLC series resonant converter is applied for 20V/20A main power. A PSR Flyback with MOSFET integrated controller is applied as the auxiliary supply. 91.2 (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
85VAC-265VAC Input 24V/240W Output 90% Efficient PFC + LLC
PMP5141 — The PMP5141 reference design provides a 24V/10A output with power factor correction from a universal AC input voltage range. This design uses the UCC28051 to control the front end PFC boost stage. The output of the PFC is followed by a UCC25600 LLC resonant half-bridge. The total efficieny, from (...)
REFERENCE DESIGNS Download
High Efficiency 180W AC/DC Power Supply Reference Design
PMP20694 — PMP20694 is high-efficiency AC/DC power supply reference design with 85VAC-300VAC input and 36V/5A output. Transition mode PFC is applied with UCC28051 to prove high power factor and boost input voltage to 450VDC.  LLC resonant converter with UCC25600 is applied to step down the 450V to 36V (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
High Efficiency Dual Output 710W LLC Series Resonant Converter Reference Design
PMP10950 PMP10950 is a high-efficiency LLC power supply reference design converting from 380VDC input to 85V/7A and 12V/9.5A outputs. Over 94% efficiency is achieved at 710W full load and over 93% efficiency at half load.
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
High Efficiency 410W AC/DC Power Supply Reference Design
PMP11282 PMP11282 is a high-efficiency AC/DC power supply reference design with universal AC input and 24V/17A output. Interleaved transition mode PFC and LLC series resonant converter is applied for 24V/17A main power. A PSR Flyback with MOSFET integrated controller is applied as the auxiliary supply (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Universal AC DLP Power Supply (10V @ 6A)
PMP5500 — This reference design provides 400W of power from a universal AC input with power factor correction. The UCC28019A controls a PFC boost front end, while the UCC25600 LLC resonant-half bridge converts the PFC output to isolated 40V, 33V, and 27V outputs. The total system efficiency is over 89% with a (...)
REFERENCE DESIGNS Download
Multi-Transformer 2x25V (50V@700mA)
PMP5660 — From universal input to two strings LED @ 700mA, 50V maximum per string, this PMP5660 offers high efficiency even with a two stage solution: PFC TM Boost and multi-transformer LLC resonant. A TLC555 provides a internal PWM dimming function.
Design files
REFERENCE DESIGNS Download
High Efficiency 200V/520W LLC Series Resonant Converter Reference Design
PMP10949 PMP10949 is a high-efficiency LLC power supply reference design converting from 380VDC input to 200V/2.6A output. 96.7% efficiency is achieved at full load and over 95% efficiency at 150W load.
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
400VDC Input to 28V/9A Output Compact, High Efficiency CLL Resonant Converter Reference Design
PMP9750 PMP9750 is a CLL resonant converter reference design with 400VDC input and 28V/9A ouput. Unlike LLC series resonant converter, CLL resonant converter used in PMP9750 utilizes its output inductor to minimize the size of the resonant tank. With resonant controller UCC25600 and bridge driver UCC27714 (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
High-Eff 2Stage Univ Input Pwr Supply Using Trans Mode PFC/LLC Resonant Conv Reference Design
PMP8920 — Low EMI, high efficiency, high power factor and reliable power supply are main focus of the PMP8920 design for telecom applications. Transient mode (TM) power factor correction (PFC) with UCC28051 and LLC series resonant converter (SRC) with UCC25600 are applied in PMP8911. In addition, synchronous (...)
REFERENCE DESIGNS Download
335W Single Stage LLC-SRC Converter Reference Design
PMP10375 The PMP10375 reference design is a single stage LLC series resonant converter (SRC), producing up to a 335W output using UCC25600 resonant controller. With the use of single stage LLC-SRC, the converter efficiency goes up to 90% at 335W full output power with 120VAC input.
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
250W Single Stage LLC-SRC Converter Reference Design
PMP9739 The PMP9739 is a single stage LLC series resonant converter (SRC), producing up to a 250W output using UCC25600 resonant controller. With the use of single stage LLC-SRC, the converter efficiency goes up to 89% at 250W full output power.
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Low Profile, Low Noise DC/DC Converter Reference Design
PMP7038 This design is low profile, low noise, works at 5Vdc input voltage and provides 5V/1.5A regulated. TIs UCC25600 resonant controller enables high efficiency even at high switching frequency.
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Slim 150 Watt LED TV Power Reference Design
PMP6251 — PMP6251 is a reference design for 150W LCD TV power by using the UCC28051 to construct PFC, UCC25600 to construct LED driver LLC converter, UCC24610 to construct SR circuit and UCC28610 to construct standby flyback converter. This driver provides 4 outputs including LED driver, 12V 3A, 5V 4A and 5V (...)
REFERENCE DESIGNS Download
Using UCC25710 to design cost effective LED Power
PMP6252 — PMP6252 is a reference design for 90W LCD TV power by using the UCC28051 to construct PFC, UCC25710 to construct LED driver LLC converter, UCC25600 to construct 5V and 12V converter and UCC28610 to construct standby flyback converter. This driver provides 4 outputs including LED driver, 12.7V 3A, 5V (...)
REFERENCE DESIGNS Download
310W PSU Using Transition Mode Bridgeless PFC and LLC-SRC - Reference Design
PMP9640 High efficiency, high power factor and reliable power supply are the main focus of the PMP9640 design for motor driver applications.  Low cost analog transition mode (TM) PFC controller UCC28051 has been used for bridgeless PFC as the first conversion stage of the PMP9640.  LLC series (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Single Stage 200W AC-DC LLC Series Resonant Conv for 120VAC & 230VAC Input Reference Design
PMP10283 The PMP10283 reference design provides 30V/100W and -30V/100W outputs from AC line voltage to a single LLC resonant converter stage. This design is featured with its low circuit cost and high efficiency (over 90% @ 120VAC full load and ~92% @ 240VAC full load). This design uses the UCC25600 resonant (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
High Eff 2Stage Univ Input Power Supply-Transition Mode PFC LLC Resonant Conv Reference Design
PMP8911 — Low EMI, high efficiency, high power factor and reliable power supply are main focus of the PMP8911 design for telecom applications. Transient mode (TM) power factor correction (PFC) with UCC28051 and LLC series resonant converter (SRC) with UCC25600 are applied in PMP8911. Low EMI is expected with (...)
REFERENCE DESIGNS Download
PFC, Resonant Half-Bridge, Buck (PFC, 42V@6A) for Digital Audio
PMP5327 — The PMP5327 reference design provides a 42V/6A output with power factor correction from a universal AC input voltage range. This design uses the UCC28019A to control the front end PFC boost stage. The output of the PFC is followed by a UCC25600 LLC resonant half-bridge. The total efficieny, from (...)
REFERENCE DESIGNS Download
Low-Line Wide Input LLC Resonant Conv for Consumer Electronics (12V@10A) Reference Design
PMP8762 The PMP8762 reference design provides a 12V/10A output from a low line-input voltage (100Vac to 132Vac) with a single LLC resonant converter stage. This design is featured with its low circuit cost, low electromagnetic interference (both conduction and radiation), and high efficiency (over 87 (...)
REFERENCE DESIGNS Download
400VDCin, 12V@460W, LLC with Synchronous Rectifiers
PMP5967 — The PMP5967 reference design provides a 12V/38A output with over 94% efficiency from a 380VDC input. This design uses the UCC25600 to control the resonant LLC converter. The UCC24610 synchronous rectifier controller is used to control two banks of CSD18501Q5A MOSFETs, eliminating the need for heat (...)
REFERENCE DESIGNS Download
5V80A Low Profile High Efficiency Power Supply
PMP4332 — This reference design demonstrates a high efficiency, low profile (<1") power supply using PFC+S.R. LLC solution. The overall efficiency is up to 88% with 5V80A output.
Design files
REFERENCE DESIGNS Download
PFC Boost LLC Resonant Half-bridge 24V@3.5A
PMP5761 PMP5761 is designed for hybrid filber/coax system with nominal 40VAC-90VAC input and generate a 24V/3.5A output. A cascade PFC and LLC-SRC two stage system is applied in this design to guarantee high power factor is achieved in nominal input range. Transition mode PFC controller UCC28051 and (...)
Design files
REFERENCE DESIGNS Download
Direct Type/ Local Dimming (Conventional TV power + Boost + LED driver)
PMP4298 — In this topology, the UCC28051 is a boost transition mode (TM) power factor corrector (PFC), which can rectify an AC input line voltage to 380V DC; the resonant LLC stage UCC25600 regulates the output to 24V/2A for an audio amplifier with feedback to the LLC controller, and 48V for the LED driver (...)
Design files
REFERENCE DESIGNS Download
Design files

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