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Onsemi NCV3064MNTXG | Demoboard SECO-LVDCDC3064-SIC-GEVB
Inverting Converter, Switching Regulator - Buck Boost, ON/OFF Function
Overview
| Topology | Flyback Converter |
| Input voltage | 6-18 V |
| Output 1 | 5 V / 0.05 A |
| Output 2 | -5 V / 0.05 A |
| Output 3 | 20 V / 0.05 A |
| IC revision | 2 |
Description
The SECO-LVDCDC3064-SIC-GEVB is an isolated supply for SiC drivers, providing the necessary stable voltage rails -5 V / 20 V for an efficient switching — as well as an additional 5 V rail — over a wide input voltage range (6 Vdc to 18 Vdc). The converter is implemented as a primary side regulated flyback, with the feedback loop signal (1.25 V) realized via an auxiliary winding regulated at 5V and a voltage divider. The design leverages the several merits of the NCV3064 regulator, enabling a low component count, compact and robust design. Among the features of this converter stand out - eg an internal temperature compensated reference, a controlled duty cycle oscillator with an active current limit circuit, driver and high current output switch.The board is realized with automotive qualified parts and is pin compatible with commercial SiC DC / DC supplies, provisioning a ready to use plug-in solutions for power applications.
Features
- Core Part − NCV3064 (Automotive) / NCP3064 (Industrial)
- Switching Frequency 150 kHz
- Input Voltage 6−18 VDC
- Output Voltage −5 V / 5 V / 20 V
- Operation Mode DCM and CCM
- Output Current 50 mA (for each Branch)
- Efficiency at Full Load 67%
- Size 26.24 x 16.38 x 16.06 mm
Typical applications
- Isolated SIC Driver Supply, Automotive Powertrain Systems, Automotive Auxiliary Power
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | VIN(V) | VOut1(V) | VOut2(V) | VOut3(V) | Vaux(V) | PO(W) | CWW 1(pF) | L(µH) | ISAT(A) | fswitch(kHz) | n | Version | IC Reference | Pins | Type | Mount | L(mm) | H(mm) | IR(A) | Working Voltage(V (AC)) | Operating Temperature | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-AGDT Auxiliary Gate Drive Transformer, 6 - 18, 20 V | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-AGDT Auxiliary Gate Drive Transformer | Input Voltage 6 - 18 | Output Voltage 120 V | Output Voltage 25 V | Output Voltage 35 V | Auxiliary Voltage5 V | Total Output Power1.5 W | Interwinding Capacitance6.4 pF | Inductance42 µH | Saturation Current1.2 A | Switching Frequency 150 | Turns Ratio1.56:3.89:1:1:1 | VersionFlyback | IC ReferenceNCV(P)3064 | – | – | – | Length11.3 mm | Height11.94 mm | – | – | Operating Temperature -40 °C up to +130 °C | ||||
 | Simulation– | Downloads7 files | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Single | – | – | – | – | – | – | – | – | – | – | – | – | – | Pins2 | TypeAngled | MountTHT | Length5.08 mm | – | Rated Current3 A | Working Voltage250 V (AC) | Operating Temperature -40 °C up to +105 °C | |||
 | Simulation– | Downloads7 files | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Single | – | – | – | – | – | – | – | – | – | – | – | – | – | Pins4 | TypeAngled | MountTHT | Length10.16 mm | – | Rated Current3 A | Working Voltage250 V (AC) | Operating Temperature -40 °C up to +105 °C |