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Analog Devices LT8228 | Demoboard DC2351A
Bidirectional Synchronous 100V Buck/Boost Controller with Reverse Supply, Reverse Current and Fault Protection
Overview
| Topology | Buck Converter |
| Input voltage | 36-56 V |
| Switching frequency | 80-600 kHz |
| Output 1 | 12 V / 35 A |
| IC revision | Rev 0 |
Description
Demonstration circuit 2351A is a high voltage, high efficiency synchronous buck or boost DC/DC converter. It is designed to have 36V to 56V on one side and 8V to 14V on the other side. It can supply a 35A maximum output current in buck mode and delivers 7A of current in boost mode. The demo board features the LT8228EFE controller. This part can seamlessly transition from bucking to boosting. With built-in circuit breaker function and other protection features, the LT8228 is ideal for high reliability systems requiring N+1 redundancy or other protections in industrial, automotive, medical, military, and avionics applications. The DC2351A is designed to be paralleled with other DC2351A boards to increase the total output current. With adequate heatsinking or airflow, the output current can be increased.
Features
- Bidirectional Voltage or Current Regulation
- Bidirectional Reverse Current Protection
- Input and Output Negative Voltage Protection to –60V
- Bidirectional Inrush Current Limit and Boost Output Short Protection
- Switching MOSFET Short Detection and Protection
- 10V Gate Drive n Wide Input and Output Voltage Range Up to 100V n Feedback Voltage Tolerance: ±1.0% Over Temperature n Bidirectional Programmable Current Regulation and Monitoring
- Extensive Self-Test, Diagnostics and Fault Reporting
- Programmable Fixed or Synchronizable Switching Frequency: 80kHz to 600kHz n Programmable Soft-Start and Dynamic Current Limit n Masterless, Fault Tolerant Current Sharing
Typical applications
- High Power System Backup and Supply Stabilization / “N+1” Redundant, High Reliability Power Supplies / Power Interrupt Protection System
- Dual Battery Automotive and Industrial Systems
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | λDom typ.(nm) | Emitting Color | λPeak typ.(nm) | IV typ.(mcd) | VF typ.(V) | Chip Technology | 2θ50% typ.(°) | C | Tol. C | VR(V (DC)) | Size | Operating Temperature | DF(%) | RISO | Ceramic Type | L(mm) | W(mm) | H(mm) | Fl(mm) | Packaging | L(µH) | IR(A) | ISAT,30%(A) | fres(MHz) | Core Material | Technical Reference | VDC(V) | VBR(V) | IPeak(A) | PDiss(mW) | VClamp max.(V) | SamplesAvailability & Sample | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | SPECWL-SMCW SMT Mono-color Chip LED Waterclear, 525 nm, Green | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear | Dominant Wavelength [typ.]525 nm | Emitting ColorGreen | Peak Wavelength [typ.]515 nm | Luminous Intensity [typ.]450 mcd | Forward Voltage [typ.]3.2 V | Chip TechnologyInGaN | Viewing Angle Phi 0° [typ.]140 ° | – | – | – | Size1206 | Operating Temperature -40 °C up to +85 °C | – | – | – | Length3.2 mm | Width1.6 mm | Height0.68 mm | – | PackagingTape and Reel | – | – | – | – | – | – | – | – | – | Power Dissipation105 mW | – | –Check availability | |||
| SPECWL-SMCW SMT Mono-color Chip LED Waterclear, 625 nm, Red | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear | Dominant Wavelength [typ.]625 nm | Emitting ColorRed | Peak Wavelength [typ.]630 nm | Luminous Intensity [typ.]150 mcd | Forward Voltage [typ.]2 V | Chip TechnologyAlInGaP | Viewing Angle Phi 0° [typ.]140 ° | – | – | – | Size1206 | Operating Temperature -40 °C up to +85 °C | – | – | – | Length3.2 mm | Width1.6 mm | Height0.68 mm | – | PackagingTape and Reel | – | – | – | – | – | – | – | – | – | Power Dissipation72 mW | – | –Check availability | |||
SPECWCAP-CSGP MLCCs 10 V(DC), –, – | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 10 V(DC) | – | – | – | – | – | – | – | Capacitance470 pF | Capacitance±10% | Rated Voltage10 V (DC) | Size0603 | Operating Temperature -55 °C up to +125 °C | Dissipation Factor5 % | Insulation Resistance10 GΩ | Ceramic TypeX7R Class II | Length1.6 mm | Width0.8 mm | Height0.8 mm | Pad Dimension0.4 mm | Packaging7" Tape & Reel | – | – | – | – | – | Technical ReferenceX7R0603471K010DFCT10000 | – | – | – | – | – | –Check availability | ||||
 | SPECWE-TVSP Power TVS Diode, –, – | Simulation– | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-TVSP Power TVS Diode | – | – | – | – | – | – | – | – | – | – | SizeDO-214AC | Operating Temperature -65 °C up to +150 °C | – | – | – | Length4.24 mm | Width2.67 mm | Height2.25 mm | – | – | – | – | – | – | – | Technical ReferenceSMAJ60CA | DC Operating Voltage60 V | (Reverse) Breakdown Voltage70.2 V | (Reverse) Peak Pulse Current4.1 A | Power Dissipation400000 mW | Clamping Voltage [max.]96.8 V | –Check availability | ||
 | SPECWE-HCFT THT High Current Inductor, –, – | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-HCFT THT High Current Inductor | – | – | – | – | – | – | – | – | – | – | Size3540 | Operating Temperature -40 °C up to +125 °C | – | – | – | Length41 mm | Width36 mm | Height35 mm | – | – | Inductance10 µH | Rated Current56.7 A | Saturation Current @ 30%62 A | Self Resonant Frequency14 MHz | Core MaterialMnZn | – | – | – | – | – | – | –Check availability |
Availability Forecast
WE item number Packaging unitsLead time
––– weeks
| Expected Availability | Opening inventory | Quantity |
|---|---|---|
| Current Availability | – | – |
There is no forecast for this quantity request.
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