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dc2150af

DEMO MANUAL DC2150A

PCB LAYOUT

DC2150A is designed to withstand input voltages from

250V to –250V when the optional 150V bidirectional TVS

DP1 is removed. The maximum positive input voltage is

limited by the 300V BVDSS rating of the input MOSFET

(Q1 on DC2150A-A/DC2150A-B, and Q3 on DC2150A-C/

DC2150A-D). The negative input voltage is limited by the

series diode (D1 on DC2150A-A/DC2150A-B, and D4 on

DC2150A-C/DC2150A-D).

Upstream of the RIPCAP node, spacings and component

package sizes have been chosen to support the high

voltages that may be present. Traces and components

downstream of the RIPCAP node are limited to less than

67V by Q1/Q3 and the LTC4366. Negative voltages are

blocked from traces and components downstream of the

RIPCAP node by D1/D4.

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