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Series/Type:
7
The following products presented in this data sheet are being withdrawn.
Ordering Code
Substitute Product
B73
%73
Date of Withdrawal
2013-10-11
Deadline Last
Orders
2013-01-31
Last Shipments
2013-04-30
For further information please contact your nearest EPCOS sales office, which will also support you in selecting a
suitable substitute. The addresses of our worldwide sales network are presented at www.epcos.com/sales.
EPCOS AG 2015. Reproduction, publication and dissemination of this publication, enclosures hereto and the information
contained therein without EPCOS' prior express consent is prohibited.
EPCOS AG is a TDK Group Company.
SAW Components
T5400
Digital barometric pressure sensor
Preliminary data
Applications
■
■
■
■
■
■
■
Barometers / weather forecast
Altimeters
GPS receivers
Mobile phones
Hard disk drives
Sensor nodes
Variometers / vertical velocity indication
bottom view
Features
■
■
■
■
■
■
■
■
■
■
■
■
■
Surface Mounted Technology (SMT)
Pressure range from 300 hPa to 1100 hPa
Supply voltage of 1.7 V to 3.6 V
Low current consumption
Very small size of 2.78 mm × 2.23 mm
Very low height of typically 0.67 mm
Pressure inlet port on the bottom side
Operating temperature range of –30 °C to +85 °C
High power supply rejection
I2C and SPI interface
16 bit ADC
Internal oscillator
RoHS compatible
side view
top view
Pin configuration
Pin
1
2
3
4
5
6
7
8
Name
VDD
SEL
GND
EOC
RST&SS
MISO
SDA/MOSI
SCL/SCLK
I/O
Supply
I
Supply
O
I
O
I/O
I
Function in I2C mode
Supply voltage
Interface protocol selection
Ground supply
End of conversion
Reset
High impedance
I2C data signal
I2C clock signal
Please read cautions and warnings and
important notes at the end of this document.
2
April 25, 2013
Function in SPI mode
Supply voltage
Interface protocol selection
Ground supply
End of conversion
Slave select
Master In Slave Out (MISO)
Master Out Slave In (MOSI)
SPI clock signal
SAW Components
T5400
Digital barometric pressure sensor
Preliminary data
General description
The T5400 is a fully calibrated digital pressure sensor. Based on the proven EPCOS piezoresistive
MEMS technology the sensor module provides high accuracy and long-term stability. The very small
size of only 2.78 mm × 2.23 mm and the low current consumption allows the integration into a multitude
of mobile and stationary applications like personal navigation devices, mobile phones, altimeters and
hard disk drives. Two high speed serial interfaces, I2C (3.4 MHz) and SPI (20 MHz), offer a high flexibility to connect the T5400 to almost every microcontroller platform.
After initialisation calibration coefficients need to be transferred from the sensor memory to the microcontroller. Afterwards the sensor transmits the raw pressure and temperature readings on request. The
user can select between four different operating modes from 5.1 Pa (0.42 m) to 2.7 Pa (0.22 m) RMS
noise. The calculation of the actual pressure and altitude is done by the microcontroller.
Electrical characteristics
Temperature range for specification
unless otherwise noted:
Ambient temperature of test conditions:
Supply voltage:
T
= –30 °C ... +85 °C
25 °C
TA =
VDD = 1.8 V
All voltages refer to ground.
Current consumption1)
Pressure range
Min.
Typ.
Max.
—
0.15
0.3
µA
–30 °C ... 25 °C
—
1
—
µA
25 °C ... 70 °C
—
3
—
µA
70 °C ... 85 °C
IPEAK_P
—
790
—
µA
during pressure
measurement 2)
IPEAK_T
—
500
—
µA
during temperature
measurement 2)
300
—
1100
hPa
—
2.9
—
Pa
–3
–1
+2
hPa
p = 300 hPa ... 1100 hPa
T = 0 °C ... 65 °C
–3
0
+5
hPa
p = 300 hPa ... 1100 hPa
T = –20 °C ... 0 °C
—
± 0.15
—
hPa
p = 950 hPa ... 1050 hPa
T = 25 °C
—
± 0.14
—
hPa
T = 25 °C ... 40 °C
pconst = 500 hPa ...1100 hPa4)
IIDLE
p
Resolution pressure
reading
Absolute accuracy
pressure sensor3)
Relative accuracy
pressure
sensor3)
∆p
∆p
Please read cautions and warnings and
important notes at the end of this document.
3
Unit
April 25, 2013
Note or condition
SAW Components
T5400
Digital barometric pressure sensor
Preliminary data
Resolution temperature
reading
Absolute accuracy
temperature sensor3)
∆T
Solder drift3)
Min.
Typ.
Max.
Unit
Note or condition
—
0.01
—
K
–1.5
± 0.5
+1.5
K
T = 25°C
–2
±1
+2
K
T = 0°C ... 70 °C
–1
—
+3
hPa
after one week
1) Ensured
by design.
interface activity.
3) Specified during qualification. Given values are ± 3σ values for new parts; solder drift is shown separately.
4) Relative accuracy over temperature at constant pressure in the range of 500 hPa ... 1100 hPa
2) Without
Power supply rejection1)
Min.
Typ.
Max.
Unit
Note or condition
—
1.4
—
hPa
Normal operation
VDD = 1.7 V ... 3.6 V
—
8.7
—
Pa
100 mVP-P, 217 Hz square
wave plus 100 mV random
noise in 10 MHz bandwidth
Start-up time
tS
—
—
10
ms
Delay between power on and
first serial communication
Wake-up time
tWU
—
2
2.5
ms
Wake up time from idle mode
to start of first measurement
1) Ensured
by design.
Operation modes
typ. RMS
noise1) (Pa)
typ. RMS
noise (m)
Avg. current
Typ. ConverMax. Conver@ 1SPS2) (µA) sion time (ms)3) sion time (ms)3)
Temperature
1.6
1.4
2
Low
5.1
0.42
2.6
1.4
2
Standard
3.5
0.29
7.2
7.3
8
High
3.2
0.27
13.3
15.2
16
Ultra high4)
2.7
0.22
51.3
63.8
66
1) The
noise data is derived from the standard deviation of ten successive samples.
per second, typical conversion times, including wake-up phase.
3) excluding wake-up time.
4) Requires the average of two temperature measurements: one before and one after the pressure measurement.
2) Samples
Please read cautions and warnings and
important notes at the end of this document.
4
April 25, 2013
SAW Components
T5400
Digital barometric pressure sensor
Preliminary data
Absolute maximum ratings
Min.
Max.
Unit
Operable temperature range
T
–30
+85
°C
Storage temperature range
TSTG
–40
+85
°C
Storage temperature range
TSTGT
0
+60
°C
Operable power supply voltage VDD
1.7
3.6
V
Power supply voltage
VDD
–0.3
4.25
V
Voltage at any digital pad
Vpad
Overpressure
pMAX
6000
hPa
ESD voltage
VESD_MM
200
V
ESD voltage
VESD_HBM
Latch-up
1) According
2) According
VSS-0.3 VDD+0.3 V
Note or condition
stored in tape
VDD,min already includes influence of ripples and noise
below T = 25 °C the minimum
supply voltage is VDD = –0.4 V
The voltage must stay within
the above specified VDD range
machine model1)
human body model2)
V
2000
tested according to JESD78 at VDD,max and T = 25 °C
to JESD22-A115A.
to JESD22-A114E.
Please read cautions and warnings and
important notes at the end of this document.
5
April 25, 2013
SAW Components
T5400
Digital barometric pressure sensor
Preliminary data
Electrical interface characteristics
Min.
Typ.
Max.
Unit
External capacitance
between VDD and GND
CVDD
90
—
—
nF
Capacitances of I/O pins
CIO
—
—
10
pF
Voltage input low level
VIL
—
0
Voltage input high level
VIH
0.7 ⋅ VDD
VDD
Voltage output low level
VOL
—
0
Voltage output high level
VOH
0.8 ⋅ VDD
VDD
Comment
0.3 ⋅ VDD V
—
V
0.2 ⋅ VDD V
—
V
IOL = 1mA
IOH = 1mA
The T5400 can be operated either in I2C or SPI slave mode. Depending on the logic level of the SEL
pad, the I2C mode (SEL=high) or the SPI mode (SEL=low) is selected.
I2C mode
The I2C interface is compatible to NXP specification UM10204, Rev. 03, June 19, 2007. Standard, fast,
fast plus and high-speed modes are supported.
Min.
Typ.
Max.
3.4
Unit
SCL clock frequency
fSCL
—
—
Voltage output low level
VOL
—
0
Pull-up resistor on SDA
and SCL
RPU
1
4.7
—
kΩ
—
—
100
pF
Capacitive load for each
bus line
Please read cautions and warnings and
important notes at the end of this document.
6
MHz
0.2 ⋅ VDD V
April 25, 2013
Comment
Standard, fast, fast-plus
and Hs-mode
IOL = 3 mA
SAW Components
T5400
Digital barometric pressure sensor
Preliminary data
SPI mode
Min.
Typ.
Max.
Unit
SCLK clock frequency
fSCL
—
—
20
MHz
SS activation time
tSSA
21
—
—
ns
SCLK clock low time
tCKL
21
—
—
ns
SCLK clock high time
tCKH
21
—
—
ns
SS deactivation time
tSSD
21
—
—
ns
MOSI setup time
tDSO
6
—
—
ns
MISO setup time
tQS
10
—
—
ns
MOSI hold time
tDO
6
—
—
ns
MISO hold time
tQH
0
—
—
ns
Maximum capacitive load
CMAX
—
251)
—
pF
1) Typically
at fSCL = 20 MHz.
Please read cautions and warnings and
important notes at the end of this document.
7
April 25, 2013
SAW Components
T5400
Digital barometric pressure sensor
Preliminary data
Function
The T5400 is a fully calibrated digital pressure sensor module. It consists of a piezoresistive MEMS
pressure sensor element and an ASIC with integrated temperature sensor, analog to digital converter
ADC, memory and digital circuitry. The analog bridge voltage of the pressure sensor and the output
voltage of the temperature sensor are routed through a multiplexer and a gain stage to the ADC. The
logic-core controls the different function blocks.
After initialisation the calibration parameters stored in the memory will be transmitted to the MCU (microcontroller unit). Afterwards only the raw pressure and temperature values are transmitted. After a
request from the MCU a pressure or/and a temperature measurement is performed. Depending on the
accuracy, time and power consumption requirements one out of four different operation modes can be
selected before a measurement is executed.
The end of a measurement is indicated on the EOC (end of conversion) pin. Then the MCU can request
the raw measurement values and calculate the actual pressure and temperature values using the
calibration data. To optimize power consumption the T5400 enters the idle mode between two measurements. Further details and source code examples are available in an application note.
Typical application
T5400
Please read cautions and warnings and
important notes at the end of this document.
8
April 25, 2013
SAW Components
T5400
Digital barometric pressure sensor
Preliminary data
Assembly conditions
Solder reflow profile
According to EPCOS specification S_6001
Max. number of reflows
3
Max. peak temperature
260 °C
Moisture sensitivity level
MSL 3
Cautions and warnings
■ Immersion of the sensor in liquids e.g. a flux cleaning process is not possible.
■ For optimum performance avoid direct light exposure.
■ Media compatibility with the pressure sensor must be ensured. Do not expose the sensor to corrosive
or explosive gases.
Pressure conversion table
Unit
bar
mbar
Pa
hPa
kPa
mmHg
psi
1 bar
1
1000
100000
1000
100
750.063
14.504
0.001
1
100
1
0.1
0.750
0.0145
1 Pa
0.00001
0.01
1
0.01
0.001
0.0075
0.000145
1 hPa
0.001
1
100
1
0.1
0.750
0.0145
1 kPa
0.01
10
1000
10
1
7.5006
0.145
0.00133
1.3332
133.322
1.3332
0.13332
1
0.01933
0.0689476
68.9476
6894.76
68.9476
6.89476
51.7151
1
1 mbar
1 mmHg
1 psi
Annotations
■
■
■
■
■
bar
Pa
hPa
mmHg
psi
Bar
Pascal (≡ 1 N/m2)
Hecto-Pascal (≡ 1 mbar)
mm column of mercury (≡ 1 Torr)
Pounds per square inch (≡ 1 lbf/in2)
Please read cautions and warnings and
important notes at the end of this document.
9
April 25, 2013
SAW Components
T5400
Digital barometric pressure sensor
Preliminary data
References
Type
T5400
Ordering code
B39000T5400P810
Marking and package
C61157-A13-A1
Packaging
F61074-V8261-Z000
Date codes
L_1126
Soldering profile
S_6001
Qualification test procedure
S_0360
RoHS compatible
RoHS-compatible means that products are compatible with the requirements according to Art. 4 (substance restrictions) of Directive
2011/65/EU of the European Parliament and of the Council of June
8th, 2011, on the restriction of the use of certain hazardous substances in electrical and electronic equipment ("Directive") with due
regard to the application of exemptions as per Annex III of the Directive in certain cases.
For further information please contact your local EPCOS sales office or visit our webpage at
www.epcos.com .
Published by EPCOS AG
Systems, Acoustics, Waves Business Group
P.O. Box 80 17 09, 81617 Munich, GERMANY
EPCOS AG 2013. This brochure replaces the previous edition.
For questions on technology, prices and delivery please contact the Sales Offices of EPCOS AG or the
international Representatives.
Due to technical requirements components may contain dangerous substances. For information on the
type in question please also contact one of our Sales Offices.
Please read cautions and warnings and
important notes at the end of this document.
10
April 25, 2013
Important notes
The following applies to all products named in this publication:
1.
Some parts of this publication contain statements about the suitability of our products for
certain areas of application. These statements are based on our knowledge of typical
requirements that are often placed on our products in the areas of application concerned. We
nevertheless expressly point out that such statements cannot be regarded as binding
statements about the suitability of our products for a particular customer application. As
a rule, EPCOS is either unfamiliar with individual customer applications or less familiar with
them than the customers themselves. For these reasons, it is always ultimately incumbent on
the customer to check and decide whether an EPCOS product with the properties described in
the product specification is suita le for use in a particular customer application.
2.
We also point out that in individual cases, a malfunction of electronic components or
failure before the end of their usual service life cannot be completely ruled out in the
current state of the art, even if they are operated as specified. In customer applications
requiring a very high level of operational safety and especially in customer applications in which
the malfunction or failure of an electronic component could endanger human life or health (e.g.
in accident prevention or life-saving systems), it must therefore be ensured by means of
suitable design of the customer application or other action taken by the customer (e.g. installation of protective circuitry or redundancy) that no injury or damage is sustained by third
parties in the event of malfunction or failure of an electronic component.
3.
The warnings, cautions and product-specific notes must be observed.
4.
In order to satisfy certain technical requirements, some of the products described in this
publication may contain substances subject to restrictions in certain jurisdictions (e.g.
because they are classed as hazardous). Useful information on this will be found in our
Material Data Sheets on the Internet (www.epcos.com/material). Should you have any more
detailed questions, please contact our sales office .
5.
We constantly strive to improve our products. Consequently, the products described in this
publication may change from time to time. The same is true of the corresponding product
specifications. Please check therefore to what extent product descriptions and specifications
contained in this publication are still applicable before or when you place an order.
We also reserve the right to discontinue production and delivery of products. Consequently, we cannot guarantee that all products named in this publication will always be
available. The aforementioned does not apply in the case of individual agreements deviating
from the foregoing for customer-specific product .
6.
Unless otherwise agreed in individual contracts, all orders are subject to the current version
of the “General Terms of Delivery for Products and Services in the Electrical Industry”
published by the German Electrical and Electronics Industry Association (ZVEI).
7.
The trade names EPCOS, BAOKE, Alu-X, CeraDiode, CeraLink, CSMP, CSSP, CTVS,
DeltaCap, DigiSiMic, DSSP, FilterCap, FormFit, MiniBlue, MiniCell, MKD, MKK, MLSC,
MotorCap, PCC, PhaseCap, PhaseCube, PhaseMod, PhiCap, SIFERRIT, SIFI, SIKOREL,
SilverCap, SIMDAD, SiMic, SIMID, SineFormer, SIOV, SIP5D, SIP5K, ThermoFuse, WindCap
are trademarks registered or pending in Europe and in other countries. Further information
will be found on the Internet at www.epcos.com/trademarks.
11
April 25, 2013