Reference Design Of A 48V Buck Converter for Automotive Techniques

A 48V DC/DC step down converter for harsh automotive purposes.

Reference Design Of A 48V Buck Converter for Automotive Techniques

Autos are getting extra superior and are available featured packed. As we speak’s automobile presents larger security, higher infotainment system and better consolation. All these options require a better quantity of energy. Subsequently, the brand new automotive designs are adopting 48V energy programs to cut back the burden and energy loss within the automobile’s cable harnesses.

The MPQ2908 from Monolithic energy is a 48V to 12V buck converter, able to delivering 15A of present and complying with CISPR-25 Class 5 EMC requirements. The automotive buck converter has an effectivity of as much as 95%. It employs a twin N-channel MOSFET driver. The reference design is AEC-Q100 certified and has a large 4V to 60V working enter vary. The DC/DC converter has a programmable gentle begin and options a number of security options together with output over-voltage safety (OVP), over-current safety (OCP), exterior enter over-voltage safety (OVP), exterior reverse-polarity safety (RPP), and so forth.

This reference design has been examined by MCP. It comes with all of the important assets such because the BoM, schematics, check outcomes, and so forth to ease designing. You could find extra knowledge concerning the reference design on the corporate’s web site. To learn extra about this reference design click on right here.

Options of MPQ2908:
• Twin N-Channel MOSFET Driver
• 0.8V Voltage Reference with ±1.5% Accuracy Over Temperature
• Low Dropout Operation: Most Responsibility Cycle at 99.5%
• Programmable Frequency Vary: 100kHz – 1000kHz
• Exterior Sync Clock Vary: 100kHz – 1000kHz
• 180º Out-of-Section SYNCO Pin
• Programmable Mushy Begin (SS)
• Energy Good (PG) Output Voltage Monitor
• Selectable Cycle-by-Cycle Present Restrict
• Output Over-Voltage Safety (OVP)
• Over-Present Safety (OCP)
• Inside LDO with Exterior Energy Provide Choice
• Programmable Compelled CCM and AAM
• Obtainable in TSSOP20-EP and QFN-20 (3mmx4mm) Packages
• Obtainable in a Wettable Flank Package deal
• Exterior Frequency Unfold-Spectrum modulation (FSS)
• Exterior Enter Over-Voltage Safety (OVP)
• Exterior Reverse-Polarity Safety (RPP)

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