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What is TMP05?

This electronic component, produced by the manufacturer "Analog Devices", performs the same function as "0.5C Accurate PWM Temperature Sensor in 5-Lead SC-70".


TMP05 Datasheet PDF - Analog Devices

Part Number TMP05
Description 0.5C Accurate PWM Temperature Sensor in 5-Lead SC-70
Manufacturers Analog Devices 
Logo Analog Devices Logo 


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±0.5°C Accurate PWM
Temperature Sensor in 5-Lead SC-70
TMP05/TMP06
FEATURES
Modulated serial digital output, proportional to
temperature
±0.5°C accuracy at 25°C
±1.0°C accuracy from 25°C to 70°C
Two grades available
Operation from −40°C to +150°C
Operation from 3 V to 5.5 V
Power consumption 70 µW maximum at 3.3 V
CMOS/TTL-compatible output on TMP05
Flexible open-drain output on TMP06
Small, low cost 5-lead SC-70 and SOT-23 packages
APPLICATIONS
Isolated sensors
Environmental control systems
Computer thermal monitoring
Thermal protection
Industrial process control
Power-system monitors
GENERAL DESCRIPTION
The TMP05/TMP06 are monolithic temperature sensors that
generate a modulated serial digital output (PWM), which varies
in direct proportion to the temperature of the devices. The high
period (TH) of the PWM remains static over all temperatures,
while the low period (TL) varies. The B Grade version offers a
higher temperature accuracy of ±1°C from 0°C to 70°C with
excellent transducer linearity. The digital output of the TMP05/
TMP06 is CMOS/TTL compatible, and is easily interfaced to
the serial inputs of most popular microprocessors. The flexible
open-drain output of the TMP06 is capable of sinking 5 mA.
The TMP05/TMP06 are specified for operation at supply
voltages from 3 V to 5.5 V. Operating at 3.3 V, the supply current
is typically 370 µA. The TMP05/TMP06 are rated for operation
over the –40°C to +150°C temperature range. It is not recom-
mended to operate these devices at temperatures above 125°C
for more than a total of 5% (5,000 hours) of the lifetime of the
devices. They are packaged in low cost, low area SC-70 and
SOT-23 packages.
FUNCTIONAL BLOCK DIAGRAM
VDD
5
TMP05/TMP06
TEMPERATURE
SENSOR
REFERENCE
Σ-
CORE
AVERAGING
BLOCK /
COUNTER
1 OUT
CONV/IN 2
CLK AND
TIMING
GENERATION
OUTPUT
CONTROL
3 FUNC
4
GND
Figure 1.
The TMP05/TMP06 have three modes of operation: continu-
ously converting mode, daisy-chain mode, and one shot mode.
A three-state FUNC input determines the mode in which the
TMP05/TMP06 operate.
The CONV/IN input pin is used to determine the rate with
which the TMP05/TMP06 measure temperature in continu-
ously converting mode and one shot mode. In daisy-chain
mode, the CONV/IN pin operates as the input to the daisy
chain.
PRODUCT HIGHLIGHTS
1. The TMP05/TMP06 have an on-chip temperature sensor
that allows an accurate measurement of the ambient
temperature. The measurable temperature range is –40°C
to +150°C.
2. Supply voltage is 3.0 V to 5.5 V.
3. Space-saving 5-lead SOT-23 and SC-70 packages.
4. Temperature accuracy is typically ±0.5°C. The part needs a
decoupling capacitor to achieve this accuracy.
5. 0.025°C temperature resolution.
6. The TMP05/TMP06 feature a one shot mode that reduces
the average power consumption to 102 µW at 1 SPS.
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable.
However, no responsibility is assumed by Analog Devices for its use, nor for any
infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.326.8703 © 2004 Analog Devices, Inc. All rights reserved.

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TMP05 equivalent
TMP05/TMP06
TMP05B/TMP06B SPECIFICATIONS
All B Grade specifications apply for –40°C to +150°C; VDD decoupling capacitor is a 0.1 µF multilayer ceramic; TA = TMIN to TMAX, VDD =
3.0 V to 5.5 V, unless otherwise noted.
Table 2.
Parameter
TEMPERATURE SENSOR AND ADC
Nominal Conversion Rate (One Shot Mode)
Accuracy1 @ VDD = 3.3 V (3.0 V – 3.6 V)
Min
Accuracy @ VDD = 5.0 V (4.5 V – 5.5 V)
Temperature Resolution
TH Pulse Width
TL Pulse Width
Quarter Period Conversion Rate
(All Operating Modes)
Accuracy @ VDD = 3.3 V (3.0 V – 3.6 V)
Accuracy @ VDD = 5.0 V (4.5 V – 5.5 V)
Temperature Resolution
TH Pulse Width
TL Pulse Width
Double High/Quarter Low Conversion Rate
(All Operating Modes)
Accuracy @ VDD = 3.3 V (3.0 V – 3.6 V)
Accuracy @ VDD = 5 V (4.5 V – 5.5 V)
Temperature Resolution
TH Pulse Width
TL Pulse Width
Long Term Drift
SUPPLIES
Supply Voltage
Supply Current
Normal Mode3 @ 3.3 V
Normal Mode3 @ 5.0 V
Quiescent3 @ 3.3 V
Quiescent3 @ 5.0 V
One Shot Mode @ 1 SPS
3
Power Dissipation
1 SPS
Typ Max
±0.5
1.5
0.025
40
76
±1
±1.25
±1.5
±2
±2.5
±32
±1.5
±1.5
0.1
10
19
±1.5
±1.5
0.1
80
19
0.081
5.5
370 550
425 650
36
5.5 10
30.9
37.38
803.33
101.9
186.9
Unit Test Conditions/Comments
°C
°C
°C
°C
°C
°C
°C
°C/5 µs
ms
ms
°C
°C
°C/5 µs
ms
ms
°C
°C
°C/5 µs
ms
ms
°C
See Table 7
TA = 25°C to 70°C, VDD = 3.0 V − 3.6 V
TA = 0°C to 70°C, VDD = 3.0 V − 3.6 V
TA = –40°C to +70°C, VDD = 3.0 V − 3.6 V
TA = –40°C to +100°C, VDD = 3.0 V − 3.6 V
TA = –40°C to +125°C, VDD = 3.0 V − 3.6 V
TA = –40°C to +150°C, VDD = 3.0 V − 3.6 V
TA = 0°C to 125°C, VDD = 4.5 V − 5.5 V
Step size for every 5 µs on TL
TA = 25°C, nominal conversion rate
TA = 25°C, nominal conversion rate
See Table 7
TA = –40°C to +150°C
TA = 0°C to 125°C
Step size for every 5 µs on TL
TA = 25°C, QP conversion rate
TA = 25°C, QP conversion rate
See Table 7
TA = –40°C to +150°C
TA = 0°C to 125°C
Step size for every 5 µs on TL
TA = 25°C, DH/QL conversion rate
TA = 25°C, DH/QL conversion rate
Drift over 10 years, if part is operated at
55°C
V
µA Nominal conversion rate
µA Nominal conversion rate
µA Device not converting, output is high
µA Device not converting, output is high
µA Average current @ VDD = 3.3 V, nominal
conversion rate @ 25°C
µA Average current @ VDD = 5.0 V, nominal
conversion rate @ 25°C
µW VDD = 3.3 V, continuously converting at
nominal conversion rates @ 25°C
µW Average power dissipated for VDD = 3.3 V,
one shot mode @ 25°C
µW Average power dissipated for VDD = 5.0 V,
one shot mode @ 25°C
Rev. 0 | Page 5 of 28


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