Description:SOIC-16 less pins 12 & 13 with 3.3 mm spacing between channels; 4.5-A Peak Source, 9-A Peak Sink Output Current Capability; Output Supply Voltage from 6.5 V to 30 V with 5-V, 8-V, and 17-V UVLO threshold.; Propagation Delay Typical 36 ns with 8 ns Max Delay Matching per channel; User Programmable Input Logic for Single or Dual-input modes via ANB; Common Mode Transient Immunity CMTI > 200 V/ns; 5 kVrms Galvanic Isolation from input to each output & 1850 V peak differential voltage between output channels; E
The recommended PCB layout for optimal thermal performance involves placing the device on a 2-layer or 4-layer board with a solid ground plane on the bottom layer, and using thermal vias to connect the exposed pad to the ground plane. Additionally, keeping the copper traces wide and short can help to reduce thermal resistance.
To ensure reliable operation in high-temperature environments, it is recommended to follow proper thermal design and layout guidelines, use a heat sink if necessary, and ensure that the device is operated within its specified temperature range. Additionally, using a thermistor or thermal sensor to monitor the device temperature can help to prevent overheating.
Using a different inductor value than recommended can affect the performance and efficiency of the device. A smaller inductor value can result in higher ripple current and reduced efficiency, while a larger inductor value can result in lower ripple current but increased size and cost. It is recommended to use the inductor value specified in the datasheet or to consult with an applications engineer for guidance.
To troubleshoot issues with the device not switching properly, check the input voltage, output voltage, and switching frequency to ensure they are within the specified ranges. Also, verify that the device is properly configured and that the input and output capacitors are of sufficient value and type. If the issue persists, consult the datasheet or contact an applications engineer for further assistance.
The NCP51563CADWR2G is designed to meet CISPR 25 Class 5 EMI standards, but additional EMI and EMC considerations may be necessary depending on the specific application and environment. It is recommended to follow proper PCB layout and design guidelines, use shielding and filtering as necessary, and consult with an EMI/EMC expert if necessary.
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NCP51563CADWR2G Overview
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