User guide

DS1875

Table 02h, Register 8Dh: COMP RANGING

FACTORY DEFAULT 00h

READ ACCESS PW2

WRITE ACCESS PW2

MEMORY TYPE Nonvolatile (SEE)

8Dh RESERVED BIAS

BIAS

RESERVED APC

APC

BIT 7 BIT 0

The upper nibble of this byte controls the full-scale range of the quick-trip monitoring for BIAS. The lower nibble

of this byte controls the full-scale range for the quick-trip monitoring of the APC reference as well as the closed-

loop monitoring of APC.

BIT 7 RESERVED (Default = 0)

BITS 6:4

BIAS[2:0] BIAS Full-Scale Ranging. 3-bit value to select the FS comparison voltage for BIAS found

on MON1. Default is 000b and creates a FS of 1.25V.

BIAS[2:0] % OF 1.25V FS VOLTAGE (V)

000b 100.00 1.250

001b 80.04 1.001

010b 66.73 0.834

011b 50.10 0.626

100b 40.11 0.501

101b 33.45 0.418

110b 28.69 0.359

111b 25.12 0.314

BIT 3 RESERVED (Default = 0)

BITS 2:0

APC[2:0] APC Full-Scale Ranging. 3-bit value to select the FS comparison voltage for BMD with

the APC. Default is 000b and creates a FS of 2.5V.

APC[2:0] % OF 2.50V FS VOLTAGE (V)