LTC2974 View Datasheet(PDF) - Linear Technology

Part Name

Description

MFG CO.

LTC2974

Wide Range I²C Power Monitor

Linear Technology

'LTC2974' PDF : 32 Pages View PDF

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LTC2945
APPLICATIONS INFORMATION
Table 1. LTC2945 Device Addressing
DESCRIPTION
HEX
DEVICE
ADDRESS
BINARY DEVICE ADDRESS
h
a6
a5
a4
a3
a2
a1
Mass Write
CC
1
1
0
0
1
1
Alert Response
19
0
0
0
1
1
0
0
CE
1
1
0
0
1
1
1
D0
1
1
0
1
0
0
2
D2
1
1
0
1
0
0
3
D4
1
1
0
1
0
1
4
D6
1
1
0
1
0
1
5
D8
1
1
0
1
1
0
6
DA
1
1
0
1
1
0
7
DC
1
1
0
1
1
1
8
DE
1
1
0
1
1
1
LTC2945
ADDRESS
PINS
a0
R/W ADR1 ADR0
0
0
X
X
0
1
X
X
1
X
H
L
0
X
NC
H
1
X
H
H
0
X
NC
NC
1
X
NC
L
0
X
L
H
1
X
H
NC
0
X
L
NC
1
X
L
L
Table 2. LTC2945 Register Addresses and Contents
REGISTER
ADDRESS
REGISTER NAME
00h
CONTROL (A)
01h
ALERT (B)
02h
STATUS (C)
03h
FAULT (D)
04h
FAULT CoR (E)
05h
POWER MSB2
06h
POWER MSB1
07h
POWER LSB
08h
MAX POWER MSB2
09h
MAX POWER MSB1
0Ah
MAX POWER LSB
0Bh
MIN POWER MSB2
0Ch
MIN POWER MSB1
0Dh
MIN POWER LSB
0Eh
MAX POWER THRESHOLD MSB2
0Fh
MAX POWER THRESHOLD MSB1
10h
MAX POWER THRESHOLD LSB
11h
MIN POWER THRESHOLD MSB2
12h
MIN POWER THRESHOLD MSB1
13h
MIN POWER THRESHOLD LSB
14h
ΔSENSE MSB
15h
ΔSENSE LSB
16h
MAX ΔSENSE MSB
READ/WRITE
DESCRIPTION
R/W Controls ADC Operation Mode and Test Mode
R/W Selects Which Faults Generate Alerts
R
System Status Information
R/W Fault Log
CoR Same Data as Register D, D Content Cleared on Read
R/W** Power MSB2 Data
R/W** Power MSB1 Data
R/W** Power LSB Data
R/W** Maximum Power MSB2 Data
R/W** Maximum Power MSB1 Data
R/W** Maximum Power LSB Data
R/W** Minimum Power MSB2 Data
R/W** Minimum Power MSB1 Data
R/W** Minimum Power LSB Data
R/W Maximum Power Threshold MSB2 to Generate Alert
R/W Maximum Power Threshold MSB1 to Generate Alert
R/W Maximum Power Threshold LSB to Generate Alert
R/W Minimum Power Threshold MSB2 to Generate Alert
R/W Minimum Power Threshold MSB1 to Generate Alert
R/W Minimum Power Threshold LSB to Generate Alert
R/W** ΔSENSE MSB Data
R/W** ΔSENSE LSB Data
R/W** Maximum ΔSENSE MSB Data
20
DEFAULT
05h
00h
00h
00h
00h
XXh
XXh
XXh
00h
00h
00h
FFh
FFh
FFh
FFh
FFh
FFh
00h
00h
00h
XXh
X0h
00h
2945f

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