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reference designSTNRG599 | Demoboard EVL599IND-250W

STMicroelectronics STNRG599 | Demoboard EVL599IND-250W

Overview

TopologyLLC Resonant Converter
Input voltage90-265 V
Output 124 V
IC revision1.0

Description

The EVL599IND-250W demonstration board is a 250 W-24 V AC-DC converter dedicated to any kind of industrial application where minimum size and high efficiency are required. The architecture is based on a two-stage approach: a front end transition mode PFC preregulator and a downstream LLC resonant half bridge converter. At secondary, the synchronous rectification allows an overall efficiency improvement with a very low external component count. The converter consists of a motherboard with a power factor correction stage and an LLC resonant tank stage, and three daughterboards. Two daughterboards are at the primary side: one with the active bridge and one with the PFC power MOSFET. The third daughterboard, on the secondary side, is for the SRK2001A and its synchronous rectification MOSFETs.The power factor correction stage is based on the L6462A, a new transition mode power factor controller, without input voltage sensing. The LLC resonant tank stage is based on STNRG599A, a novel resonant controller based on a proprietary phase shift methodology. The board has not heat sink on the primary side and has a very reduced dimension. The high efficiency and small size make the board very suitable when available space is limited.The main features of L6462A are a minimal component count, a simple design, high efficiency, and very low input current distortion (THD) under all operating conditions. It includes a set of protections to ensure a high level of reliability: output overvoltage, overcurrent, inductor saturation detection, and feedback failure detection.The STNRG599A integrated HV startup allows powering both ICs from AC mains for proper power-up, without the need of auxiliary standby supplies. It includes a set of protections and functions: overcurrent and short-circuit, an input voltage monitor that allows LLC converter startup with correct sequencing (DC brown-in), prevention of operation with too low input voltage (DC brown-out), hard switching prevention and anti-capacitive protection, safe start procedure, and adaptive dead time.

Features

High-efficiency solution for AC-DC conversion using L6462A, STNRG599A, and SRK2001A controllers ICsInput voltage: 90 ÷ 265 Vac / 45 ÷ 65 HzOutput voltage: 24 VMaximum output power: 250 WMax. peak output power: 300 WEfficiency (at 25, 50, 75, 100% of full load): > 90% at 115/230 VacOpen load input power: < 140 mW at 115/230 VacMains harmonics: meets EN-61000-3-2 Class-D and JEITA-MITI Class-DEMI: according to EN55022 Class-BBoard size: 165 mm x 65 mm (W x L). Max. height: 30 mm.

Typical applications

  • Consumer SMPS, Adapters
  • Industrial AC-DC applications

More information

Products

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DF(%)
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W(mm)
H(mm)
Fl(mm)
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dV/dt(V/µs)
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SamplesAvailability & Sample
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8853522130151
SPECWCAP-CSSA Interference Suppression, 2.2 nF, ±10%
Simu­lation
Availability
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Downloads7 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWCAP-CSSA Interference Suppression
Capacitance2.2 nF
Capacitance±10% 
Rated Voltage250 V (AC)
Size2211 
Operating Temperature -55 °C up to +125 °C
Safety ClassX1 / Y2 
Impulse Voltage5000 V (DC)
Dissipation Factor2.5 %
Insulation Resistance10 GΩ
Ceramic TypeX7R Class II 
Length5.7 mm
Width2.8 mm
Height2.5 mm
Pad Dimension0.6 mm
Packaging7" Tape & Reel 
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890324026014
SPECWCAP-FTX2 Film Capacitors, 470 nF, ±10%
Simu­lation
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Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWCAP-FTX2 Film Capacitors
Capacitance470 nF
Capacitance±10% 
Rated Voltage275 V (AC)
SizePitch: 22.5 mm 
Operating Temperature -40 °C up to +105 °C
Safety ClassX2 
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Insulation Resistance21.28 GΩ
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Length26 mm
Width7 mm
Height14.5 mm
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PackagingBulk 
ApplicationAcross the mains 
Rate of Voltage Rise150 V/µs
Dissipation Factor0.1 %
Pitch22.5 mm
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860040674004
SPECWCAP-ATUL Aluminum Electrolytic Capacitors, 100 µF, ±20%
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Availability
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Downloads8 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWCAP-ATUL Aluminum Electrolytic Capacitors
Capacitance100 µF
Capacitance±20% 
Rated Voltage50 V (AC)
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Dissipation Factor10 %
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Length11.5 mm
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PackagingAmmopack 
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Pitch3.5 mm
Endurance 7000
Ripple Current680 mA
Leakage Current50 µA
Diameter8 mm
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7447070
SPECWE-FI Leaded Toroidal Line Choke, –, –
Simu­lation–
Availability
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Downloads8 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-FI Leaded Toroidal Line Choke
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Operating Temperature -40 °C up to +105 °C
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Length25 mm
Width11.5 mm
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Inductance100 µH
Rated Current6 A
DC Resistance0.035 Ω
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