LTC4261 LINER [Linear Technology], LTC4261 Datasheet - Page 27

• Manufacturer Part Number: LTC4261
• Description: Negative Voltage Hot Swap Controllers with ADC and I2C Monitoring
• Manufacturer: LINER [Linear Technology]

APPLICATIONS INFORMATION
Table 1. LTC4261 Device Addressing
H = Tie to INV
Table 2. LTC4261 Register Address and Contents
REGISTER
ADDRESS*
00h
01h
02h
03h
04h
05h
06h
07h
08h
09h
*Register address MSBs b7-b4 are ignored. **Writable if bit D5 set.
Alert Response
DESCRIPTION
Mass Write
0
1
2
3
4
5
6
7
8
CC
; L = Tie to V
REGISTER
NAME
STATUS (A)
FAULT (B)
ALERT (C)
CONTROL (D)
SENSE (E)
SENSE (F)
ADIN2/OV (G)
ADIN2/OV (H)
ADIN (I)
ADIN (J)
HEX DEVICE
ADDRESS
EE
3E
19
20
22
24
26
28
2A
2C
2E
h
; NC = No connect, open; X = Don’t care
READ/WRITE
6
0
0
0
0
0
0
0
0
0
0
R/W**
R/W**
R/W**
R/W**
R/W**
R/W**
R/W
R/W
R/W
R
5
0
0
0
0
0
0
0
0
0
0
DESCRIPTION
System Status Information
Fault Log and PGIO Input
Controls Whether the ALERT Pin is Pulled Low After a Fault is Logged in the Fault Register
Controls Whether the Part Retries After Faults, Set the On/Off Switch State
ADC Current Sense Voltage Data (8 MSBs)
ADC Current Sense Voltage Data (2 LSBs)
ADC ADIN2/OV (SSOP/QFN) Voltage Data (8 MSBs)
ADC ADIN2/OV (SSOP/QFN) Voltage Data (2 LSBs)
ADC ADIN Voltage Data (8 MSBs)
ADC ADIN Voltage Data (2 LSBs)
Single-Wire Broadcast Mode
4
1
0
1
1
1
1
1
1
1
1
BINARY DEVICE ADDRESS
3
1
1
0
0
0
0
0
0
0
0
2
1
1
0
0
0
0
1
1
1
1
1
1
0
0
0
1
1
0
0
1
1
LTC4261/LTC4261-2
0
1
0
0
1
0
1
0
1
0
1
R/W
0
1
X
X
X
X
X
X
X
X
ADR1
ADDRESS PINS
NC
NC
NC
H
H
H
X
X
L
L
L
LTC4261
27
ADR0
NC
NC
NC
X
X
H
H
H
L
L
L
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