TMP461-EP datasheet(5/38 Pages) TI2

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TMP461

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SBOS722B – JUNE 2015 – REVISED AUGUST 2016

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7.5 Electrical Characteristics

At TA = –40°C to 125°C and V+ = 1.7 V to 3.6 V, unless otherwise noted.

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNIT

TEMPERATURE MEASUREMENT

TALOCAL

Local temperature sensor accuracy

TA = –10°C to 100°C, V+ = 1.7 V to 3.6 V

-1

±0.125

°C

TA = –40°C to 125°C, V+ = 1.7 V to 3.6 V

-1.25

±0.5

+1.25

TAREMOTE

Remote temperature sensor accuracy

TA = 0°C to 100°C, TD = –55°C to 150°C,

V+ = 1.7 V to 3.6 V

-0.75

±0.125

+ 0.75

°C

TA = –40°C to 125°C, TD = –55°C to 150°C,

V+ = 1.7 V to 3.6 V

-1.5

±0.5

+1.5

Temperature sensor error versus supply

(local or remote)

V+ = 1.7 V to 3.6 V

-0.25

±0.1

+0.25

°C/V

Temperature resolution

(local and remote)

0.0625

°C

ADC conversion time

One-shot mode, per channel (local or remote)

ADC resolution

Bits

Remote sensor

source current

High

Series resistance 1 k

Ω (max)

120

152

µA

Medium

Low

5.5

7.5

9.5

Remote transistor ideality factor

TMP461 optimized ideality factor

1.008

SERIAL INTERFACE

VIH

High-level input voltage

1.4

VIL

Low-level input voltage

0.45

Hysteresis

200

SDA output-low sink current

VOL

Low-level output voltage

IO = –6 mA

0.15

0.4

Serial bus input leakage current

0 V

≤ VIN ≤ 3.6 V

–1

μA

Serial bus input capacitance

SCL

SDA

4.6

Serial bus clock frequency

0.001

2.17

MHz

Serial bus timeout

DIGITAL INPUTS (A0, A1)

VIH

High-level input voltage

0.9(V+)

(V+) + 0.3

VIL

Low-level input voltage

–0.3

0.1(V+)

Input leakage current

0 V

≤ VIN ≤ 3.6 V

–1

μA

Input capacitance

2.5

DIGITAL OUTPUTS (THERM, ALERT/THERM2)

Output-low sink current

VOL

Low-level output voltage

IO = –6 mA

0.15

0.4

IOH

High-level output leakage current

VO = V+

μA

POWER SUPPLY

V+

Specified supply voltage range

1.7

3.6

Quiescent current

Active conversion, local sensor

240

375

µA

Active conversion, remote sensor

400

600

Standby mode (between conversions)

Shutdown mode, serial bus inactive

Shutdown mode, serial bus active, fS = 400 kHz

Shutdown mode, serial bus active, fS = 2.17 MHz

350

POR

Power-on reset threshold

Rising edge

1.2

1.55

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