OPTION_REG datasheet(40/222 Pages) MICROCHIP

Il numero della parte	OPTION_REG

Spiegazioni elettronici	Digitally Enhanced Power Analog Controller with Integrated Synchronous Driver

PDF	222 Pages

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Produttore elettronici	MICROCHIP [Microchip Technology]

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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.

VZCCON: VOLTAGE FOR ZERO CURRENT CONTROL REGISTER

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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