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MCP19111 датащи(PDF) 40 Page - Microchip Technology |
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MCP19111 датащи(HTML) 40 Page - Microchip Technology |
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40 / 222 page ![]() MCP19111 DS22331A-page 40 2013 Microchip Technology Inc. 6.5 Voltage for Zero Current In multi-phase systems it may be necessary to provide some offset to the sensed inductor current. The VZCCON register can be used to provide a positive or negative offset in the sensed current. Typically, the VZCCON will be set to 0x80h, which corresponds to the sensed inductor current centered around 1.45V. However, by adjusting the VZCCON register, this centered voltage can be shifted up or down by approximately 3.28 mV per step. REGISTER 6-5: VZCCON: VOLTAGE FOR ZERO CURRENT CONTROL REGISTER R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x VZC7 VZC6 VZC5 VZC4 VZC3 VZC2 VZC1 VZC0 bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ -n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown bit 7-0 VZC<7:0>: Voltage for Zero Current Setting bits 00000000 = -420.00 mV Offset 00000001 = -416.72 mV Offset • • • 10000000 = 0 mV Offset • • • 11111110 = +413.12 mV Offset 11111111 = +416.40 mV Offset |
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