THMC50

REMOTE/LOCAL TEMPERATURE MONITOR AND

FAN CONTROLLER WITH SMBus INTERFACE

SLIS090 – JULY 1999

4

POST OFFICE BOX 655303

–0.3 V to 5.75 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.5 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . .

–5 mA to 5 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–20 mA to 20 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–0.3 V to 0.8 V

. . . . . . . . . . . . . . . . . . . . . .

–1 mA to 1 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

±2 kV

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

330 mW

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–40

°C to 125°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–65

°C to 165°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

150

°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

300

°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTES:

1. All voltages are measured with respect to GND, unless otherwise specified.

2. The 20-mA maximum package input current rating limits the number of terminals that can safely exceed the power supplies with

an input current of 5 mA to four terminals.

3. The maximum power dissipation must be derated at elevated temperatures and is dictated by TJmax, θJA and the ambient

temperature, TA. The maximum allowable power dissipation at any temperature is PD = (TJmax – TA)/θJA.

4. Solder accordingly to IPC standards.

power supply

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

V(VCC3AUX RST)

VCC3AUX reset generator

supply voltage

Voltage on VCC3AUX needed to guarantee

RST and AUXRST to stay valid

1

3.8

V

V(VCC3AUX_RST)

VCC3AUX supply voltage

Normal operating supply voltage for all other

THMC50 circuits

3

3.3

3.8

V

I(VCC3AUX)

Supply current

(interface inactive)

Exclude D/A converter source/sink current

1

2

mA

I(VCC3AUX_STANDBY) Standby mode

500

µA

voltage supervisors

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

VTHAUXRST

Threshold voltage on VCC3AUX for

AUXRST active

Reduce VCC3AUX from 3.8 V until AUXRST

is low.

2.88

3

V

VTHRST

Threshold voltage on VCC3 for RST

active

Reduce VCC3 from 3.8 V until RST is low

with VCC3AUX = 3.3 V

2.88

3

V

temperature-to-digital converter

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

T(ACC)

Measured temperature accuracy

–40

°C ≤TA < 60°C and

100

°C <TA ≤ 125°C

–5

5

°C

(ACC)

y

60

°C ≤TA ≤ 100°C

–3

3

T(RES)

Temperature resolution

Design parameter – not tested

1

°C

V(THRESH)

Remote_Diode+ open fault threshold

2.4

V