LTC2945 Datasheet, PDF (22/32 Pages) Linear Technology – Wide Range I2C Power Monitor Rail-to-Rail Input Range: 0V to 80V

LTC2945
APPLICATIONS INFORMATION
Table 3. CONTROL Register A (00h) - Read/Write
BIT NAME
OPERATION
A7 ADC Snapshot Mode Enable
Enables ADC Snapshot Mode; 1 = Snapshot Mode Enabled. Only channel selected by A6 and A5 is
measured by the ADC. After the conversion, the BUSY bit is reset and the ADC is halted.
0 = Snapshot Mode Disabled (Continuous Scan Mode. Default)
A6 ADC Channel Label for Snapshot Mode ADC Channel Label for Snapshot Mode
A6
A5 ADC Channel
A5
0
0 ΔSENSE (Default)
0
1 V_IN
1
0 ADIN
A4 Test Mode Enable
A3 ADC Busy in Snapshot Mode
A2 V_IN Monitor
A1 Shutdown Enable
A0 Multiplier Select
Test Mode Halts ADC Operation and Enables Writes to Internal ADC/LOGIC Registers;
1 = Enable Test Mode, 0 = Disable Test Mode (Default)
ADC Current Status; 1 = ADC Converting, 0 = ADC Conversion Completed (Default), Not Writable
Enables V_DD or SENSE⁺ Voltage Monitoring; 1 = Monitor SENSE⁺ Voltage (Default),
0 = Monitor V_DD Voltage
Enables Low-I_Q / Shutdown Mode; 1 = Enable Shutdown, 0 = Normal Operation (Default)
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Table 4. ALERT Register B (01h) - Read/Write
BIT NAME
OPERATION
B7 Maximum POWER Alert
Enables Alert When POWER Calculation Data is > Maximum Power Threshold;
1 = Enable Alert,
0 = Disable Alert (Default)
B6 Minimum POWER Alert
Enables Alert When POWER Calculation Data is < Minimum Power Threshold;
1 = Enable Alert,
0 = Disable Alert (Default)
B5 Maximum ΔSENSE Alert
Enables Alert When ADC ΔSENSE Measurement Data is > Maximum ΔSENSE Threshold;
1 = Enable Alert,
0 = Disable Alert (Default)
B4 Minimum ΔSENSE Alert
Enables Alert When ADC ΔSENSE Measurement Data is < Minimum ΔSENSE Threshold;
1 = Enable Alert,
0 = Disable Alert (Default)
B3 Maximum V_IN Alert
Enables Alert When ADC V_IN Measurement Data is > Maximum V_IN Threshold;
1 = Enable Alert,
0 = Disable Alert (Default)
B2 Minimum V_IN Alert
Enables Alert When ADC V_IN Measurement Data is < Minimum V_IN Threshold;
1 = Enable Alert,
0 = Disable Alert (Default)
B1 Maximum ADIN Alert
Enables Alert When ADC ADIN Measurement Data is > Maximum ADIN Threshold;
1 = Enable Alert,
0 = Disable Alert (Default)
B0 Minimum ADIN Alert
Enables Alert When ADC ADIN Measurement Data is < Minimum ADIN Threshold;
1 = Enable Alert,
0 = Disable Alert (Default)
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