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STMicroelectronics L6986ITR | Demoboard STDES-SICGP4
38 V, 5 W synchronous iso-buck converter for isolated applications
Details
| Topologie | Gegentaktwandler (Halbbrücken) |
| Eingangsspannung | 4-38 V |
| Ausgang 1 | 20 A |
| IC-Revision | 1 |
Beschreibung
The STDES-SICGP4 reference design is based on SiC MOSFETs.The platform contains a half-bridge structure that supports HiP247-4 (TO247-4) packages. Gate driver and isolated auxiliary supply are also assembled. The external connection of a digital signal to the gate drivers inputs allows controlling MOSFETs by switching to a half-bridge structure. For instance, this kit allows testing the switching performance of the MOSFETs, using the double-pulse test method (DPT).This document shows an example of a switching energies test, using DPT, as well as measured waveforms and results calculated from them.The main board specification and the input/output connection are detailed in UM3044. Read this user manual before testing the platform.
Eigenschaften
- Designed for iso-buck topology
- 4 V to 38 V operating input voltage
- Primary output voltage regulation / no optocoupler required
- 1.9 A typical sink peak primary current capability
- Peak current mode architecture in forced PWM operation
- 300 ns blanking time
- 8 µA IQ-SHTDWN
- Adjustable fSW and synchronization
- Embedded primary output voltage supervisor - Adjustable soft-start time
- Internal primary current limiting
- Overvoltage protection
- RDS(on) HS = 180 mΩ, RDS(on) LS = 150 mΩ
- Thermal shutdown
Typische Anwendungen
- Isolated power supply for SiC MOSFET and IGBT drivers, Isolated power supply for isolated interfaces (RS232, I2C, SPI, etc.), UPS
- Solar converters
- Motor drivers, Automation
Weiterführende Informationen
Artikeldaten
Artikel Nr. | Datenblatt | Simulation | Downloads | Status | Produktserie | PCB/Kabel/Panel | Modularity | Typ | Wire Section | Vin(V) | VOut1(V) | VOut2(V) | PO(W) | CWW 1(pF) | L(µH) | ISAT(A) | fswitch(kHz) | n | Version | IC-Referenz | Schutzart | f | Montageart | Mittelkontakt | Betriebstemperatur | B(mm) | H(mm) | Ti | Tl(mm) | Pins | Muster | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WR-TBL Series 213 - 5.00 mm Horiz.l Entry Modular, Käfigzugklemme, PCB | Simulation– | Downloads6 Dateien | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | PCB/Kabel/PanelPCB | ModularityJa | TypHorizontal | Wire Section 26 to 16 (AWG) 0.5 to 1.5 (mm²) | – | – | – | – | – | – | – | – | – | – | – | – | – | MontageartTHT | – | Betriebstemperatur -40 °C up to +105 °C | – | – | – | – | Pins2 | |||
 | WP-THRBU REDCUBE THR with internal through-hole thread, –, – | Simulation– | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | MontageartTHR | – | Betriebstemperatur -55 °C up to +150 °C | Breite10 mm | Höhe3.5 mm | InnengewindeM4 | Gewindelänge3 mm | Pins8 | ||||
 | WR-SMA PCB THT/THR/SMT, –, PCB | Simulation– | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWR-SMA PCB THT/THR/SMT | PCB/Kabel/PanelPCB | – | – | – | – | – | – | – | – | – | – | – | – | – | – | SchutzartNone | FrequenzbereichDC~6 GHz | MontageartTHT | MittelkontaktØ 1.27 | Betriebstemperatur -65 °C up to +165 °C | – | – | – | – | – | |||
 | WE-AGDT Auxiliary Gate Drive Transformer, –, – | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-AGDT Auxiliary Gate Drive Transformer | – | – | – | – | Input Voltage 9 - 18 | Ausgangsspannung 115 V | Ausgangsspannung 2-4 V | Totale Ausgangsleistung3 W | Koppelkapazität7 pF | Induktivität18 µH | Sättigungsstrom1.6 A | Switching Frequency 350 | Übersetzungsverhältnis2.25:3.5:1 | VersionFlyback | IC-ReferenzLM5180 | – | – | MontageartSMT | – | Betriebstemperatur -40 °C up to +130 °C | Breite10.95 mm | Höhe11.94 mm | – | – | – |