LTC4151-1 View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LTC4151-1' PDF : 16 Pages View PDF
LTC4151/LTC4151-1
APPLICATIONS INFORMATION
Table 2. LTC4151/LTC4151-1 Register Address and Contents
REGISTER ADDRESS* REGISTER NAME
READ/WRITE
00h
SENSE (A)
R/W**
01h
SENSE (B)
R/W**
02h
VIN (C)
R/W**
03h
VIN (D)
R/W**
04h
ADIN (E)
R/W**
05h
ADIN (F)
R/W**
06h
CONTROL (G)
R/W
07h
Reserved
*Register address MSBs b7-b3 are ignored. **Writable if bit G4 is set.
DESCRIPTION
ADC Current Sense Voltage Data (8 MSBs)
ADC Current Sense Voltage Data (4 LSBs)
ADC VIN Voltage Data (8 MSBs)
ADC VIN Voltage Data (4 LSBs)
ADC ADIN Voltage Data (8 MSBs)
ADC ADIN Voltage Data (4 LSBs)
Controls ADC Operation Mode and Test Mode
Table 3. SENSE Registers A (00h) and B (O1h)—Read/Write
BIT
NAME
OPERATION
A7:0, B7:4 SENSE Voltage Data
12-Bit Data of Current Sense Voltage with 20μV LSB and 81.92mV Full-Scale
B3
ADC Busy in Snapshot Mode
1 = SENSE Being Converted; 0 = SENSE Conversion Completed. Not Writable
B2:0
Reserved
Always Returns 0. Not Writable
Table 4. VIN Registers C (02h) and D (O3h)—Read/Write
BIT
NAME
OPERATION
C7:0, D7:4 VIN Voltage Data
12-Bit Data of VIN Voltage with 25mV LSB and 102.4V Full-Scale
D3
ADC Busy in Snapshot Mode
1 = VIN Being Converted; 0 = VIN Conversion Completed. Not Writable
D2:0
Reserved
Always Returns 0, Not Writable
Table 5. ADIN Registers E (04h) and F (O5h)—Read/Write
BIT
NAME
OPERATION
E7:0, F7:4 ADIN Voltage Data
12-Bit Data of Current Sense Voltage with 500μV LSB and 2.048V Full-Scale
F3
ADC Busy in Snapshot Mode
1 = ADIN Being Converted; 0 = ADIN Conversion Completed. Not Writable
F2:0
Reserved
Always Returns 0, Not Writable
Table 6. CONTROL Register G (06h)—Read/Write
BIT
NAME
OPERATION
G7
ADC Snapshot Mode
Enables ADC Snapshot Mode; 1 = Snapshot Mode Enabled. Only the channel selected by G6 and G5 is
Enable
measured by the ADC. After the conversion, the channel busy bit is reset and the ADC is halted.
0 = Snapshot Mode Disabled (ADC free running, Default).
G6
ADC Channel Label for ADC Channel Label for Snapshot Mode
Snapshot Mode
G6 G5
ADC CHANNEL
G5
ADC Channel Label for
0
0
SENSE (Default)
Snapshot Mode
0
1
VIN
1
0
ADIN
G4
G3
G2
G1:0
12
Test Mode Enable
Page Read/Write Enable
Stuck-Bus Timer Enable
Reserved
Test Mode Halts ADC Operation and Enables Writes to ADC Registers; 1 = Enable Test Mode,
0 = Disable Test Mode (Default)
Enables Page Read/Write; 1 = Enable I2C Page Read/Write (Default), 0 = Disable I2C Page Read/Write
Enables I2C Stuck-Bus Reset Timer; 1 = Enable Stuck-Bus Timer (Default), 0 = Disable Stuck-Bus Timer
Always Returns 0, Not Writable
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