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Pin description – Rainbow Electronics LM82 User Manual

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Pin Description

Label

Pin #

Function

Typical Connection

NC

1, 5

floating, unconnected

Left floating. PC board traces may be routed
through the pads for these pins. No restrictions
applied.

V

CC

2

Positive Supply Voltage
Input

DC Voltage from 3.0 V to 3.6 V

D+

3

Diode Current Source

To Diode Anode. Connected to remote discrete
diode junction or to the diode junction on a remote
IC whose die temperature is being sensed. When
not used they should be left floating.

D−

4

Diode Return Current
Sink

To Diode Cathode. Must float when not used.

ADD0–ADD1

10, 6

User-Set SMBus (I

2

C)

Address Inputs

Ground (Low, “0”), V

CC

(High, “1”) or open

(“TRI-LEVEL”)

GND

7, 8

Power Supply Ground

Ground

NC

9, 13, 15

Manufacturing test pins.

Left floating. PC board traces may be routed
through the pads for these pins, although the
components that drive these traces should share
the same supply as the LM82 so that the Absolute
Maximum Rating, Voltage at Any Pin, is not
violated.

INT

11

Interrupt Output,
open-drain

Pull Up Resistor, Controller Interrupt or Alert Line

SMBData

12

SMBus (I

2

C) Serial

Bi-Directional Data Line,
open-drain output

From and to Controller, Pull-Up Resistor

SMBCLK

14

SMBus (I

2

C) Clock Input

From Controller, Pull-Up Resistor

T_CRIT_A

16

Critical Temperature
Alarm, open-drain output

Pull Up Resistor, Controller Interrupt Line or
System Shutdown

LM82

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