IC manufacturers Texas Instruments

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Texas Instruments UCC256302 | Demoboard PMP21683

48-V/550-W resonant converter reference design

Overview

TopologyLLC Resonant Converter
Input voltage380-420 V
Switching frequency35-1000 kHz
Output 148 V / 11.45 A
IC revisionB

Description

This resonant converter reference design takes a 380-V to 420-V DC input and generates a 48-V up to 550-W output. With the UCC256302 driver-integrated resonant converter controller and UCC24624, a two-channel synchronous rectifier (SR) driver, this design can achieve 97.95% peak efficiency.

Features

  • Integrated High Voltage Startup– Eliminates Need for External Bias Supply
  • Best-in-Class Transient Response
  • Hybrid Hysteretic Control (HHC)– Best-in-Class Transient Response– Easy Compensation Design
  • Optimized Low Power Features Enable 75 mW Standby Power Design with PFC on– Advanced Burst Mode
  • Opto-Coupler Low Power Operation– Helps Enable Compliance to CoC Tier II Standard
  • Fast Exit from Burst Mode
  • Improved Capacitive Region Avoidance Scheme
  • Adaptive Dead-Time
  • Internal High-Side Gate Drivers (0.6-A and 1.2-A Capability)
  • Robust Soft Start with No Hard Switching
  • Over Temperature, Output Over Voltage, Input Over and Under Voltage Protection with Three Levels of Over Current Protections
  • Wide Operating Frequency Range (35 kHz to 1 MHz)

Typical applications

  • AC-DC Adapter / Merchant DC-to-DC / DIN Rail Power Supply
  • Multi-Functional Printers / Projectors / ATX Power Supply
  • Multi-Axis Servo
  • High Power Battery Charging
  • Digital TV SMPS / Appliances
  • LED Lighting Applications
  • Industrial AC-DC

More information

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesCVR
(V (DC))
dV/dt
(V/µs)
DF @ 1 kHz
(%)
RISOOperating TemperaturePitch
(mm)
L
(mm)
W
(mm)
H
(mm)
PackagingTol. CSizeOperating TemperatureDF
(%)
Ceramic TypeFl
(mm)
Endurance
(h)
IRIPPLE
(mA)
ILeak
(µA)
Ø D
(mm)
Samples
885012206040SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 16 V(DC)10 nF 1610 GΩ 1.6 0.8 0.8 7" Tape & Reel ±10% 0603 -55 °C up to +125 °C 3.5 X7R Class II 0.4
890303325004CSSPEC

PCN pending

Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff.

8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-FTBP Film Capacitors68 nF 630 240 0.130000 MΩ -40 °C up to +105 °C 15 18 6 12 Carton ±5% Pitch 15 mm
885012106018SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 16 V(DC)2.2 µF 160.05 GΩ 1.6 0.8 0.8 7" Tape & Reel ±20% 0603 -55 °C up to +85 °C 10 X5R Class II 0.4
860241480001SPEC
6 files Active i| Production is active. Expected lifetime: >10 years.WCAP-AT1H Aluminum Electrolytic Capacitors100 µF 450 -25 °C up to +105 °C 7.5 35.5 Ammopack ±20% 16.0 x 35.5 17 5000 610 1900 16
860080575012SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WCAP-ATLI Aluminum Electrolytic Capacitors220 µF 35 -55 °C up to +105 °C 5 12.5 Ammopack ±20% 9 5000 1060 77 10
860040575012SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WCAP-ATUL Aluminum Electrolytic Capacitors680 µF 35 -40 °C up to +105 °C 5 30 Ammopack ±20% 12 7000 2000 238 10
Order Code Data­sheet Simu­lation
885012206040SPEC
890303325004CSSPEC

PCN pending

Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff.

885012106018SPEC
860241480001SPEC
860080575012SPEC
860040575012SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesCVR
(V (DC))
dV/dt
(V/µs)
DF @ 1 kHz
(%)
RISOOperating TemperaturePitch
(mm)
L
(mm)
W
(mm)
H
(mm)
PackagingTol. CSizeOperating TemperatureDF
(%)
Ceramic TypeFl
(mm)
Endurance
(h)
IRIPPLE
(mA)
ILeak
(µA)
Ø D
(mm)
Samples