ADT7461A

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2

Figure 1. Functional Block Diagram

A−TO−D

CONVERTER

RUN/STANDBY

BUSY

REMOTE OFFSET

REGISTER

STATUS REGISTER

INTERRUPT

MASKING

REMOTE TEMPERATURE

VALUE REGISTER

LOCAL TEMPERATURE

VALUE REGISTER

ON−CHIP

TEMPERATURE

SENSOR

ANALOG

MUX

EXTERNAL DIODE OPEN−CIRCUIT

SMBus INTERFACE

ADT7461A

3

2

8

4

1

57

GND

SDATA

SCLK

THERM

6

D+

D–

ALERT/THERM2

CONFIGURATION

REGISTERS

EXTERNAL THERM LIMIT

REGISTERS

LOCAL THERM LIMIT

REGISTERS

REMOTE TEMPERATURE

HIGH−LIMIT REGISTER

REMOTE TEMPERATURE

LOW−LIMIT REGISTER

LOCAL TEMPERATURE

HIGH−LIMIT REGISTER

LOCAL TEMPERATURE

LOW−LIMIT REGISTER

CONVERSION RATE

REGISTER

ADDRESS POINTER

REGISTER

ABSOLUTE MAXIMUM RATINGS

Parameter

Rating

Unit

−0.3, +3.6

V

D+

V

D− to GND

−0.3 to +0.6

V

SCLK, SDATA, ALERT, THERM

−0.3 to +3.6

V

Input Current, SDATA, THERM

−1, +50

mA

Input Current, D−

±1

mA

ESD Rating, All Pins (Human Body Model)

1500

V

150

°C

Storage Temperature Range

−65 to +150

°C

Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the

Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect

device reliability.

NOTE: This device is ESD sensitive. Use standard ESD precautions when handling.

THERMAL CHARACTERISTICS

Package Type

Unit

8−Lead MSOP

142

43.74

°C/W