Control Logic

One Shot

Register

Remote Offset

Registers

Local/Remote

Temperature

Registers

HIGH

Limit

Registers

LOW

Limit

Registers

T_CRIT Limit

& Hysteresis

Registers

Configuration

and Status

Registers

Conversion

Rate

Registers

Two-Wire Serial

Interface

Local/Remote

Diode Selector

Temperature

Sensor

Circuitry

10-Bit Plus Sign

'-6

Converter

Programable

Level

Filter

Fault

Queue

Fault

Queue

Fault

Queue

S

R

3.0V-3.6V

D+

D-

T_Crit_A

ALERT

SMBData

SMBClock

Q

LM86

SNIS114E – DECEMBER 2001 – REVISED MARCH 2013

www.ti.com

Simplified Block Diagram

Connection Diagram

VSSOP-8 or SOIC-8

(TOP VIEW)

Pin Description

Label

Pin No.

Function

Typical Connection

1

Positive Supply Voltage Input

DC Voltage from 3.0 V to 3.6 V

Diode Current Source

To Diode Anode. Connected to remote discrete diode connected

D+

2

transistor junction or to the diode connected transistor junction on a

remote IC whose die temperature is being sensed.

D

−

3

Diode Return Current Sink

To Diode Cathode.

T_CRIT Alarm Output, Open-Drain, Pull-Up Resistor, Controller Interrupt or Power Supply Shutdown Control

T_CRIT_A

4

Active-Low

GND

5

Power Supply Ground

Ground

Interrupt Output, Open-Drain,

Pull-Up Resistor, Controller Interrupt or Alert Line

ALERT

6

Active-Low

SMBus Bi-Directional Data Line,

From and to Controller, Pull-Up Resistor

SMBData

7

Open-Drain Output

SMBCLK

8

SMBus Input

From Controller, Pull-Up Resistor

2

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