TC72(2011) データシートの表示（PDF） - Microchip Technology

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TC72
(Rev.:2011)

Digital Temperature Sensor with SPI™ Interface

Microchip Technology 

TC72

1.0 ELECTRICAL

CHARACTERISTICS

1.1 Maximum Ratings†

VDD........................................................................ 6.0V

All inputs and outputs w.r.t. GND ...-0.3V to VDD +0.3V

Storage temperature .......................... -65°C to +150°C

Ambient temp. with power applied ..... -55°C to +125°C

Junction Temperature ........................................ 150°C

ESD protection on all pins:

Human Body Model (HBM)............................. > 4 kV

Man Machine Model (MM)............................. > 400V

Latch-Up Current at each pin ........................ ±200 mA

Maximum Power Dissipation........................... 250 mW

† Notice: Stresses above those listed under "Maximum

Ratings" may cause permanent damage to the device. This is

a stress rating only and functional operation of the device at

those or any other conditions above those indicated in the

operation listings of this specification is not implied. Exposure

to maximum rating conditions for extended periods may affect

device reliability.

DC CHARACTERISTICS

Electrical Specifications: Unless otherwise noted, all parameters apply at VDD = 2.65V to 5.5V,

TA = -55°C to +125°C.

Parameters

Sym Min Typ Max Units

Conditions

Power Supply

Operating Voltage Range

VDD

2.65 —

5.5

Operating Current:

IDD-CON

—

Normal Mode, ADC Active

250 400

V Note 1

µA Continuous Temperature Conversion

mode (Shutdown Bit = ‘0’)

Shut-Down Supply Current

ISHD

—

0.1 1.0

Temperature Sensor and Analog-to-Digital Converter

µA Shutdown mode (Shutdown Bit = ‘1’)

Temperature Accuracy

(Note 1)

Resolution

TACY

-2.0

— +2.0

°C -40°C < TA < +85°C

-3.0 — +3.0

-55°C < TA < +125°C

—

10

—

Bits Note 4

ADC Conversion Time

Digital Input / Output

tCONV

— 150 200 ms

High Level Input Voltage

VIH 0.7 VDD —

—

V

Low Level Input Voltage

VIL

—

— 0.2 VDD V

High Level Output Voltage

VOH 0.7 VDD —

—

V IOH = 1 mA

Low Level Output Voltage

VOL

—

— 0.2 VDD V IOL = 4 mA

Input Resistance

RIN

1.0

—

—

MΩ

Pin Capacitance

CIN

—

15

—

pF

COUT

—

50

—

Note 1: The TC72-2.8MXX, TC72-3.3MXX and TC72-5.0MXX will operate from a supply voltage of 2.65V to 5.5V.

However, the TC72-2.8MXX, TC72-3.3MXX and TC72-5.0MXX are tested and specified at the nominal

operating voltages of 2.8V, 3.3V and 5.0V respectively. As VDD varies from the nominal operating value,

the accuracy may be degraded. Refer to Figure 2-5 and Figure 2-6.

2: Measured with a load of CL = 50 pF on the SDO output pin of the TC72.

3: All time measurements are measured with respect to the 50% point of the signal, except for the SCK rise

and fall times. The rise and fall times are defined as the 10% to 90% transition time.

4: Resolution = Temperature Range/No. of Bits = (+127°C – -128°C) / (210) = 256/1024 = 0.25°C/Bit

© 2011 Microchip Technology Inc.

DS21743B-page 3

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