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Overview
| Topology | Buck-Boost Converter |
| Input voltage | 8-18 V |
| Output 1 | 20 V / 2 A |
Description
The Four-Switch Buck-Boost Development Board (4SW-BB) is a generic development board for this topology that supports rapid prototyping and code development based on dsPIC33 devices.The board provides organized building blocks that include an input filter, power stage, AUX supply, mating socket for Microchip’s newest Digital Power Plug-In Modules (DP-PIMs), Human Machine Interface (HMI) and test points. The electrical characteristics are applicable to automotive requirements and can be used for these applications as well.For example, input power can be a standard 12V vehicle power rail and operate within the automotive ambient temperature range. A mating socket for dsPIC33 Plug-In Modules allows the system to be evaluated with different controllers.The pinout is compatible for EP,CK and CH dsPIC® DSC DP PIMs.
Features
- DC Input Connectors:
- 4 mm banana plugs
- 2 mm power barrel jack
- Input filter, overvoltage protection.
- Four-switch power converter with gate drivers:
- Left Leg-Buck, Right Leg-Boost
- Output filter.
- Output connector.
- Auxiliary power supply.
- Output current shunt amplifier.
- Test points for outer loop measurements.
- HMI interface (push buttons and two LEDs).
- dsPIC33-DSC DP-PIM socket with test points at the edge of the board.
- AUX connector.
- GND surface for ground clips connection
Typical applications
- Medical and Health Care
- Set-Top Boxes, Consumer
- SLA Battery Powered Devices
- Automotive
- PIC MCU/dsPIC DSC Microcontroller Bias Supply, Distributed Power Supplies, AC-DC Digital Control Power Source,
- 48V,24V and 12V Industrial Input DC-DC Conversion, DSL Cable Modems, AC.DC Adapters, Power Meters
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IRP,40K(A) | ISAT(A) | fres(MHz) | Size | Version | C | VR(V (DC)) | Endurance(h) | IRIPPLE(mA) | RESR(mΩ) | ILeak(µA) | DF(%) | Ø D(mm) | L(mm) | Packaging | Pins | Center pin Ø (Value)(mm) | Plug OD(mm) | IR(A) | Working Voltage(V (DC)) | H(mm) | Operation Force(g) | Electrical Life(Cycles) | Actuator Color | Z @ 100 MHz(Ω) | Zmax(Ω) | Test Condition Zmax | IR 2(mA) | RDC max.(mΩ) | Type | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-PD SMT Power Inductor, 10 µH, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PD SMT Power Inductor | Inductance10 µH | – | Saturation Current7.8 A | Self Resonant Frequency17.6 MHz | Size1260 | VersionPerformance | – | – | – | – | – | – | – | – | Length12 mm | – | – | – | – | Rated Current5.8 A | – | Height6 mm | – | – | – | – | – | – | – | DC Resistance20 mΩ | – | ||||
| WE-PD SMT Power Inductor, 22 µH, 2.1 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PD SMT Power Inductor | Inductance22 µH | Performance Rated Current2.1 A | Saturation Current1.3 A | Self Resonant Frequency15 MHz | Size6050 | VersionRobust | – | – | – | – | – | – | – | – | Length5.9 mm | – | Pins2 | – | – | – | – | Height5 mm | – | – | – | – | – | – | – | DC Resistance115 mΩ | – | ||||
 | WE-CBF SMT EMI Suppression Ferrite Bead, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CBF SMT EMI Suppression Ferrite Bead | – | – | – | – | Size1206 | VersionSMT | – | – | – | – | – | – | – | – | Length3.2 mm | – | – | – | – | Rated Current1.8 A | – | Height1.1 mm | – | – | – | Impedance @ 100 MHz500 Ω | Maximum Impedance610 Ω | Maximum Impedance150 MHz | Rated Current 22500 mA | DC Resistance60 mΩ | TypeHigh Current | ||||
 | WR-DC Power Jacks, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-DC Power Jacks | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | PackagingBag | – | Center pin Ø2 mm | Recommended Plug outer Ø5.5 mm | Rated Current5 A | Working Voltage30 V (DC) | – | – | – | – | – | – | – | – | – | TypeRight Angled | |||
 | WCAP-PSLC Aluminum Polymer Capacitors, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-PSLC Aluminum Polymer Capacitors | – | – | – | – | Size10.0 x 12.4 | – | Capacitance270 µF | Rated Voltage35 V (DC) | Endurance 2000 | Ripple Current4400 mA | ESR20 mΩ | Leakage Current1890 µA | Dissipation Factor12 % | Diameter10 mm | Length12.4 mm | Packaging15" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | ||||
 | WS-TASV J-Bend SMT Tact Switch 4.2x3.2 mm, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWS-TASV J-Bend SMT Tact Switch 4.2x3.2 mm | – | – | – | – | – | – | – | Rated Voltage16 V (DC) | – | – | – | – | – | – | – | PackagingTape and Reel | – | – | – | Rated Current0.05 A | – | Height2.5 mm | Operation Force260 g | Electrical Life50000 Cycles | Actuator ColorWhite | – | – | – | – | – | – |