± ±0.5°C AAcuratCꢀPW
TtmpturacutCStnsouCinC.-LtrdCS°-7±
C
TWꢀ±./TWꢀ±6
FUNCTIONAL BLOCK DIAGRAM
FEATURES
Modulated serial digital output, proportional to
temperature
V
DD
5
TMP05/TMP06
0.ꢀ5C accuracy at 2ꢀ5C
1.05C accuracy from 2ꢀ5C to 705C
Two grades available
Operation from −405C to +1ꢀ05C
Operation from 3 V to ꢀ.ꢀ V
TEMPERATURE
SENSOR
AVERAGING
BLOCK /
COUNTER
Σ-∆
CORE
1
OUT
REFERENCE
Power consumption 70 µW maximum at 3.3 V
CMOS/TTL-compatible output on TMP0ꢀ
Flexible open-drain output on TMP06
Small, low cost ꢀ-lead SC-70 and SOT-23 packages
OUTPUT
CONTROL
CLK AND
TIMING
GENERATION
CONV/IN
2
3
FUNC
4
APPLICATIONS
GND
Isolated sensors
Figure 1.
Environmental control systems
Computer thermal monitoring
Thermal protection
Industrial process control
Power-system monitors
The TMP05/TMP06 have three modes of operation: continu-
ously converting mode, daisy-chain mode, and one shot mode.
A three-state FUN° input determines the mode in which the
TMP05/TMP06 operate.
The °ONV/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 °ONV/IN pin operates as the input to the daisy
chain.
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° from 01° to 701° with
excellent transducer linearity. The digital output of the TMP05/
TMP06 is °MOS/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.
PRODUCT HIGHLIGHTS
±. The TMP05/TMP06 have an on-chip temperature sensor
that allows an accurate measurement of the ambient
temperature. The measurable temperature range is –401°
to +±501°.
2. Supply voltage is 3.0 V to 5.5 V.
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 –401° to +±501° temperature range. It is not recom-
mended to operate these devices at temperatures above ±251°
for more than a total of 5% (5,000 hours) of the lifetime of the
devices. They are packaged in low cost, low area S°-70 and
SOT-23 packages.
3. Space-saving 5-lead SOT-23 and S°-70 packages.
4. Temperature accuracy is typically ±0.51°. The part needs a
decoupling capacitor to achieve this accuracy.
5. 0.0251° temperature resolution.
6. The TMP05/TMP06 feature a one shot mode that reduces
the average power consumption to ±02 µW at ± SPS.
Rev. 0
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