LTC4261/LTC4261-2

27

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Table 1. LTC4261 Device Addressing

DESCRIPTION

HEX DEVICE

ADDRESS

BINARY DEVICE ADDRESS

LTC4261

ADDRESS PINS

h

6543210

R/W

ADR1

ADR0

Mass Write

3E

00111110

X

X

Alert Response

19

00011001

X

X

0

20

0010000

X

L

L

1

22

0010001

X

L

NC

2

24

0010010

X

H

NC

3

26

0010011

X

L

H

4

28

0010100

X

NC

L

5

2A

0010101

X

NC

NC

6

2C

0010110

X

H

H

7

2E

0010111

X

NC

H

8

Single-Wire Broadcast Mode

H

L

Table 2. LTC4261 Register Address and Contents

REGISTER

ADDRESS*

REGISTER

NAME

READ/WRITE

DESCRIPTION

00h

STATUS (A)

R

System Status Information

01h

FAULT (B)

R/W

Fault Log and PGIO Input

02h

ALERT (C)

R/W

Controls Whether the ALERT Pin is Pulled Low After a Fault is Logged in the Fault Register

03h

CONTROL (D)

R/W

Controls Whether the Part Retries After Faults, Set the On/Off Switch State

04h

SENSE (E)

R/W**

ADC Current Sense Voltage Data (8 MSBs)

05h

SENSE (F)

R/W**

ADC Current Sense Voltage Data (2 LSBs)

06h

ADIN2/OV (G)

R/W**

ADC ADIN2/OV (SSOP/QFN) Voltage Data (8 MSBs)

07h

ADIN2/OV (H)

R/W**

ADC ADIN2/OV (SSOP/QFN) Voltage Data (2 LSBs)

08h

ADIN (I)

R/W**

ADC ADIN Voltage Data (8 MSBs)

09h

ADIN (J)

R/W**

ADC ADIN Voltage Data (2 LSBs)

*Register address MSBs b7-b4 are ignored. **Writable if bit D5 set.

APPLICATIONS INFORMATION