Diodes Incorporated AP64203/303Q | Demoboard DDB103R3

Beschreibung

The DDB103R3 Demo Board showcases the AP66x00Q/AP64x03Q 3A DC-DC buck converter, the AP74700Q ideal diode controller, and an EMI input filter. It demonstrates a system-level solution with reverse voltage protection, ISO 7637-2 transient pulse protection (using a suitable TVS), EMI filtering that passes CISPR 25 Class 5, and the DC-DC buck converter. The input filter (as shown in figure 3 within the red square) contains a common mode choke with capacitors on either side in a Pi configuration. This is connected in series with an LC low pass filter containing an inductor and a capacitor. This combination makes the board CISPR 25 class 5 compliant. The AP66x00Q/AP64x03Q (highlighted in yellow) are adjustable switching frequency, internally compensated, synchronous DC-DC buck converter families. The AP66x00Q family has a VIN range of 3.8V-60V, and the AP64x03Q family has a VIN of 3.8V-40V. The AP66x00Q/AP64x03Q device families fully integrate a high-side power MOSFET and low-side power MOSFET to provide high-efficiency step-down DC-DC conversion. The AP66x00Q/AP64x03Q enables continuous load currents of up to 2A/3A, with efficiency as high as 95%. It features current mode control operation, which enables easy loop stabilization supporting a wide range of capacitive loads. The AP66x00Q/AP64x03Q simplifies board layout with its high level of integration and minimal external components. The AP66x00Q/AP64x03Q is available in the U-QFN4040-16/SWP package.

Eigenschaften

Qualified for Automotive ApplicationsAEC-Q100 Qualified with the Following ResultsDevice Temperature Grade 1: -40°C to +125°C TA▪ Device HBM ESD Classification Level H1C▪ Device CDM ESD Classification Level C3BVIN 8V to 40V2A Continuous Output CurrentVOUT Adjustable from 0.8V to 36VEnhanced Efficiency Mode with BiasAdjustable Switching Frequency. 500kHz Default FrequencyStartup with Pre-Biased OutputExternal Soft-Start with Tracking – Sequential, Ratiometric, or Absolute. Default Internal Soft-Start of 1.7msEnable Pin with 5% ToleranceSoft Discharge±5% Power Good Detection with Internal Pullup ResistorOvercurrent Protection (OCP) with HiccupThermal ProtectionTotally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)Halogen and Antimony Free. “Green” Device (Note 3)The AP64203Q is suitable for automotive applications requiring specific change control; this part is AEC-Q100 qualified, PPAP capable, and manufactured in IATF 16949 certified facilities. https://www.diodes.com/quality/product-definitions/

Typische Anwendungen

Weiterführende Informationen

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