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TMP235A2DBZ on a board, in 3D

TMP235A2DBZ

Texas Instruments

-40℃~+150℃ 2.3V~5.5V ±1.2℃ SOT-23 Temperature Sensors ROHS

Extended
DatasheetJLCPCBLCSCti/TMP235A2DBZ
Category
Temperature Sensors
Package
SOT-23
Pins
3

Overview

The TMP235A2DBZ is a temperature Sensor made by Texas Instruments in a SOT-23 package with 3 pins. -40℃~+150℃ 2.3V~5.5V ±1.2℃ SOT-23 Temperature Sensors ROHS.

PCBKit's library has its KiCad symbol (tinkerforge:TMP235, from Tinkerforge) and its footprint (Package_TO_SOT_SMD:SOT-23, from KiCad's library), ready for a KiCad board. 8,090 are in stock at JLCPCB (part C2868808). 1 open-source board in 1 repository on GitHub use it.

Symbol

VDD1VOUT2GND3
tinkerforge:TMP235From Tinkerforge

Footprint

123
Package_TO_SOT_SMD:SOT-23From KiCad's library

From the datasheet

11
Supply, least
2.3 V · VDD, recommended operating min · p. 4
Supply, most
5.5 V · VDD, recommended operating max · p. 4
Supply, absolute maximum
6 V · VDD, absolute max · p. 4
Works from
-40 °C · Operating free-air temperature min · p. 4
Works up to
150 °C · Operating free-air temperature max · p. 4
Junction, hottest
150 °C · Junction temperature absolute max · p. 4
Takes working
9 µA · VDD operating current typical, TA = 25℃, VDD = 2.3 V · p. 5
Takes at most
17 µA · VDD operating current max, TA = 150℃ · p. 5
Junction to air (DBZ (SOT-23))
167 K/W · Junction-to-ambient thermal resistance · p. 4
Junction to case (DBZ (SOT-23))
90 K/W · Junction-to-case top thermal resistance · p. 4
Junction to board (DBZ (SOT-23))
146 K/W · Junction-to-board thermal resistance · p. 4

What it is and has

4
Accuracy grade
A2: ±0.5°C typical · p. 1
Sensor gain and offset
10mV/°C, 500mV at 0°C · p. 1
Protection
Output short-circuit protection · p. 1
Package
3-pin SOT-23 (DBZ), surface mount · p. 1

Around it

3
cap 680 pF
between ADC input and GND; CFILTER example for ADC sampling; keep total load capacitance within 1000 pF and place close to the ADC input. · p. 11
cap 0.1 μF
between VDD and GND; Supply bypass capacitor used with a 100-Ω series resistor in noisy environments. · p. 12
res 100 Ω
between external supply and VDD; Series supply filter resistor used with a 0.1-uF bypass capacitor in noisy environments. · p. 12

Specifications

32
ParameterConditionsAs printedPage
Supply voltage, VDD VDDOver operating free-air temperature rangemax 6 V4
Output voltage, VOUT VOUTOver operating free-air temperature range; maximum is (VDD + 0.3) Vmin -0.3 V4
Output currentOver operating free-air temperature rangemin -30 · max 30 mA4
Latch-up current, each pinOver operating free-air temperature rangemin -200 · max 200 mA4
Junction temperature (TJ) TJmax 150 °C4
Storage temperature (Tstg) Tstgmin -65 · max 150 °C4
Electrostatic discharge V(ESD)Human-body model (HBM) per JESD22-A114 (1); ±4000 Vmax 4000 V4
Electrostatic discharge V(ESD)Charged-device model (CDM), per JEDEC specification JESD22-C101 (2); ±1000 Vmax 1000 V4
Input voltage (TMP235) VDDTMP235min 2.3 · max 5.5 V4
Operating free-air temperature TAmin -40 · max 150 °C4
Junction-to-ambient thermal resistance RθJATMP235, DBZ (SOT-23)typ 167 °C/W4
Junction-to-case (top) thermal resistance RθJC(top)TMP235, DBZ (SOT-23)typ 90 °C/W4
Junction-to-board thermal resistance RθJBTMP235, DBZ (SOT-23)typ 146 °C/W4
Junction-to-top characterization parameter ΨJTTMP235, DBZ (SOT-23)typ 35 °C/W4
Junction-to-board characterization parameter ΨJBTMP235, DBZ (SOT-23)typ 146 °C/W4
Operating current IDDTA = 25℃, VDD = 2.3 V, TMP235, no loadtyp 9 uA5
Operating current IDDTA = –40℃ to +125℃, TMP235, VDD = 2.3 V to 5.5 V, no loadmax 14.5 uA5
Operating current IDDTA = 150℃, TMP235, VDD = 2.3 V to 5.5 V, no loadmax 17 uA5
Line regulation Δ℃/ΔVDDTMP235: VDD = 2.3 V to 5.5 V, TA = –40°C to +125°C, no loadmin -0.1 · typ 0.02 · max 0.1 ℃/V5
Temperature accuracy (1) TACYTMP235A2, TA = 25°C; typical accuracy ±0.5℃typ 0.5 ℃5
Temperature accuracy (1) TACYTMP235A2, TA = 0°C to +70°C (SOT-23 Package); typical accuracy ±0.5℃min -1.2 · typ 0.5 · max 1.2 ℃5
Temperature accuracy (1) TACYTA = –40°C to +125°C (TMP235A2); typical accuracy ±0.5℃min -2 · typ 0.5 · max 2 ℃5
Temperature accuracy (1) TACYTA = –40°C to +150°C (TMP235A2); typical accuracy ±0.5℃min -2 · typ 0.5 · max 2 ℃5
Output voltage offset at 0 °C V0℃TMP235typ 500 mV5
Temperature coefficient (sensor gain) TCTMP235typ 10 mV/℃5
Output nonlinearity (1) VONLTA = 0 °C to 70 °C, no load; typical nonlinearity ±0.5℃typ 0.5 ℃5
Output current IOUTmax 500 uA5
Output impedance ZOUTIOUT = 100 uA, f = 100 Hztyp 20 Ω5
Output impedance ZOUTIOUT = 100 uA, f = 500 Hztyp 50 Ω5
Output load regulationTA = 0°C to 70°C, IOUT = 100 uA, ΔVOUT / ΔIOUTtyp 1 Ω5
Turn on time tONTime to reach accuracy within ±0.5°Ctyp 800 us5
Typical load capacitance CLOADmax 1000 pF5

Pins, by the datasheet

3
1 VDD
Positive supply input. · p. 3
2 VOUT
Outputs voltage proportional to temperature. · p. 3
3 GND
Power supply ground. · p. 3

Ordering codes, by the datasheet

2
TMP235A2DBZR
SOT-23 (DBZ) · Package quantity 3000; operating temperature -40 to 150°C. · p. 15
TMP235A2DBZT
SOT-23 (DBZ) · Package quantity 250; operating temperature -40 to 150°C. · p. 15

Parameters

11
Current - Supply
9uA
Current - Supply(Max)
17uA
Detection Temperature Range
-40℃~+150℃
Junction Temperature(Max)
150℃
Operating Temperature
-40℃~+150℃
Thermal Resistance(Junction to Ambient)
167℃/W
Thermal Resistance(Junction to Board)
146℃/W
Thermal Resistance(Junction to Case)
90℃/W
Tolerance
±1.2℃
Voltage - Supply
2.3V~5.5V
Voltage - Supply(Absolute Max)
6V

Order codes

2

Pinout

3
The pins of the TMP235A2DBZ
PinNameType
1VDDInput
2VOUTInput
3GNDInput

Open-source boards using it

All 1
  • 2 layers46.5 × 88.5 mmTempspike, the printed circuit board in 3D

    Tempspike

    JustinPead/tempspike

    The Tempspike board was designed to be a conductivity sensor for multiple pads in the event that some of them fail due to corrosion or seperation.

    53 parts

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Questions

Is there a KiCad symbol and footprint for the TMP235A2DBZ?

Yes. The symbol is tinkerforge:TMP235 and the footprint Package_TO_SOT_SMD:SOT-23, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the TMP235A2DBZ?

SOT-23, with 3 pins. Its footprint is drawn on this page.

Where is the TMP235A2DBZ datasheet?

Texas Instruments publishes it: the Datasheet link on this page opens it.

Where can I order the TMP235A2DBZ?

JLCPCB lists it as part C2868808, with 8,090 in stock; the sellers' links on this page open their listings.

What can replace the TMP235A2DBZ?

Parts like it in the library: the MCP9700A-E/TT by Microchip Technology, the TMP235A4DBZ by Texas Instruments, the TC1047AVNBTR by Microchip Technology and the LM50CIM3X by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the TMP235A2DBZ?

1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.

Parts like it

8