KP253

KP253 INFINEON | Alldatasheet

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Digital Absolute Pressure Sensor KP253 dBAP Digital Barometric Air Pressure Sensor IC Sense & Control Data Sheet Revision 1.1, 2015-07-29

Data Sheet 2 Revision 1.1, 2015-07-29 KP253 Digital Absolute Pressure Sensor Table of Contents

Digital Absolute Pressure Sensor Data Sheet 3 Revision 1.1, 2015-07-29 List of Tables

Product Name Product Type Ordering Code Package Digital Absolute Pressure Sensor KP253 SP001399102 PG-DSOF-8-16 Data Sheet 5 Revision 1.1, 2015-07-29 KP253 Digital Absolute Pressure Sensor

1 Product Description

The KP253 is a miniaturized Digital Barometric Air Pressure Sensor IC based on a capacitive principle. It is surface micromachined with a monolithic integrated signal co nditioning circuit implemented in BiCMOS technology. The sensor converts a pressure into a 12-bit digital value and sends the information via the SPI interface. In addition, a temperature sensor is integrated on chip. Based on the received SPI command, the 12-bit temperature information will be transmitted via the SPI interface. A special reliability feature is the integrated diagnostic mode, which allows testing the sensor cells as well as the signal path. This diagnosis can be simply triggered with a SPI command. The chip is packaged in a “green” SMD housing. Th e sensor has been primarily developed for measuring barometric air pressure, but can also be used in other application fields. The high accuracy, high sensitivity and reliability features of the device makes it a perfect fit for advanced automotive applications as well as in industrial and consumer applications.

1.1 Features

The following features are supported by the KP253:

• High accuracy pressure sensing ( ± 1.0 kPa)
• 12-bit pressure resolution
• Integrated temperature sensor
• 12-bit temperature resolution
• Power-down mode for reduced power consumption
• Self diagnosis features
• “Green” 8 pin SMD housing
• Automotive qualified

1.2 Target Applications

The KP253 is designed for use in the following target applications:

• Automotive applications
• Industrial control
• Consumer applications
• Medical applications
• Weather stations, Altimeters

Data Sheet 6 Revision 1.1, 2015-07-29 KP253 Digital Absolute Pressure Sensor Functional Description

2 Functional Description

2.1 Pin Configuration

Figure 1 shows the pin configuration. Figure 1 Pin configuration (top view, figure not to scale)

2.2 Pin Description

Table 1 shows the pin description. Table 1 Pin description Pin No. Name Function Comment

1 NCS Not-Chip-Select (active-low) Commun ication is enabled when NCS is low

2 CLK Serial Clock External clock for serial communication

3 SDI Serial Data In Serial data input (e.g. from a controller)

4 SDO Serial Data Out Tri-state serial data output

5V DD Supply voltage – 6V PROG Programming Voltage Only required during E 2PROM programming

7 NC Not Connected Pin is not bonded

8G N D G r o u n d – GND NC V PROG VDD SDI NCS CLK SDO

Data Sheet 7 Revision 1.1, 2015-07-29 KP253 Digital Absolute Pressure Sensor Functional Description

2.3 Block Diagram

Figure 2 shows the functional block diagram. Figure 2 Functional block diagram

2.4 Transfer Function Pressure

The KP253 device is fully calibrated on delivery. The sensor has a linear transfer function between the applied pressure and the digital output signal. Figure 3 Pressure transfer function Temperature Sensor Pressure Cells ADC ADC Digital Signal Processing Normal Mode/ Diagnosis Mode Temperature Compensation Digital Core SPI Interface E²PROM Interface E²PROMVoltage Regulator digital analog Reset VDDA VDDD NCS CLK SDI SDO GND NC VPROG VDD pressure [kPa] 2048 4095 20 40 60 80 100 120 140 operating pressure range maximum input pressure range 160 180 200 output signal [LSB] Zoom

Data Sheet 8 Revision 1.1, 2015-07-29 KP253 Digital Absolute Pressure Sensor Functional Description

2.4.1 Pressure Transfer Function Characteristics

The following calibration is adjusted with the parameters Sp and offsp Note: The points p IN,1/LSBOUT,1 and pIN,2/LSBOUT,2 define the calibrated transfer function and not the operating range. The operating pressure range is defined by the parameter 2.8 “Ambient operating pressure range” on Page 22

2.4.2 Accuracy

Figure 4 Accuracy for pressure acquisition Table 2 Pressure transfer function characteristics Pressure Output Code Gain and Offset Symbol Values Unit Symbol Values Unit Symbol Value Unit p IN,1 60 kPa LSBOUT,1 0 LSB Sp 39 LSB/kPa pIN,2 165 kPa LSBOUT,2 4095 LSB offsp -2340 LSB p pp amb S offsoutp −= -40 0 85 125 error multiplier temperature [°C] absolute error [kPa] 0.0 0.5 1.5 1.0 2.0 2.5 1.5 2.5 2.0 1.0Pamb: 70kPa..130kPa Pamb: 60kPa..70kPa or 130kPa..165kPa -20 3.0 3.5 4.0 4.5 5.0 4.0 4.5

Data Sheet 9 Revision 1.1, 2015-07-29 KP253 Digital Absolute Pressure Sensor Functional Description

2.5 Transfer Function Temperature

Triggering the temperature command (see Section 2.7.1.4) the KP253 provides the ambient temperature. Figure 5 Temperature transfer function ( VDD = 5.0 V)

2.5.1 Temperature Transfer Function Characteristics

The following calibration is adjusted with the parameters ST and offsT: Note: The points T IN,1/LSBOUT,1 and TIN,2/LSBOUT,2 define the calibrated transfer function and not the operating range. The operating temperature range is defined by the parameter 2.7 “Operating temperature” on Page 22 Table 3 Temperature transfer function characteristics Temperature Output Code Gain and Offset Symbol Values Unit Symbol Values Unit Symbol Value Unit TIN,1_5.0 1) Valid for VDD = 5.0 V -40 °C LSBOUT,1 0 LSB ST 20.48 LSB/°C TIN,2_5.0 1) 160 °C LSBOUT,2 4095 LSB offsT_3.3 2) offsT_5.0 2) Valid for VDD = 3.3 V 839 819 LSB LSB -40 2048 4095 -20 0 20 40 60 80 100 operating temperaturerange 120 140 160 output signal [LSB] temperature [°C] Zoom T TT amb S offsoutT −=

Data Sheet 10 Revision 1.1, 2015-07-29 KP253 Digital Absolute Pressure Sensor Functional Description

2.6 Power-Down Mode

The KP253 has a special power saving feature called the Power-down mode. The sensor will enter a sleep mode where the power consumption is drastically reduced.

2.6.1 Entering Power-Down Mode

To enter the Power-down mode, the Trigger power-down command has to be sent to the sensor via the SPI interface. The sensor will enter the Power-down mode within some μs.

2.6.2 Exiting Power-Down Mode

To wake-up the sensor from the Power-down mode the NCS pin needs to be low during the rising edge of the CLK pin. To allow repowering of the sensor, the user needs to wait the time tstart-up before sending the first SPI command (e.g. Acquire pressure command). The response of the sensor during this first command must be ignored. With the next SPI command the pressure value from the previous acquire command will be returned.

2.7 Serial Interface

The communication and data transmission is based on a standard 16 bit serial peripheral interface (SPI). Figure 6 SPI timing

2.7.1 Commands

The following Commands are defined:

• A c q u i r e i d e n t i f i e r
• Acquire pressure (incl. E 2PROM check and last updated Diag1 & Diag2)
• Acquire temperature (incl. E 2PROM check and last updated Diag1 & Diag2)1)
• Trigger power-down mode (activates the power-down state)
• Trigger diagnosis (triggers Diag1 and Diag2)
• Trigger test mode (entry into test mode only occurs if this is the first command received after power up, in conjunction with a high voltage level (>10V) on pin VPROG) 1) Last updated diagnosis informat ion is only available if the Trigger diagnosis command was sent at any time before and the diagnostic reset is not active (Reset-bit C12 = ‘1‘, see Chapter 2.9.1). NCS SCLK SDO SDI tsclch thclcl tclh tcll MSB tpcld MSB tscld thcld LSB LSB tonncs tsclcl thclch tpchdz tcsdv

Data Sheet 11 Revision 1.1, 2015-07-29 KP253 Digital Absolute Pressure Sensor Functional Description

2.7.1.1 Command Behavior

The SPI command interpretation is based on following rules:

• The response to command N is the re sult of the previous command (N-1)
• The response to the first command is the identifier
• When a command (N) is sent and the processing of the previous command (N-1) has not finalized, the last command (N) will not interrupt the processing
• Max. one command is stacked (during processing a command a new received command is stacked; further received commands will overwrite the stack)
• If a command has finished, the sensor takes the next command from the stack; if no command is in the stack, the sensor goes into the pressure measurement mode
• The diagnosis command triggers the Diag1 and Diag2 measurement; during this time pressure values (including out of range information) will not be updated
• Pressure and temperature values can be updated continuously based on a parallel acquisition
• If the sensor is in the power-down state then the next command triggers the wake-up process (NCS must be low in combination with a rising SCLK edge)

2.7.1.2 Structure

The following structure is defined for an SPI command: Figure 7 SPI command structure Figure 8 SPI response structure 0123456789101112131415 \0\REQUEST RESET BIT ADDITIONAL REQUEST MSB LSB 0123456789101112131415 DATADIAGNOSIS PARIT Y MSB LSB

Data Sheet 12 Revision 1.1, 2015-07-29 KP253 Digital Absolute Pressure Sensor Functional Description Figure 9 SPI response structure for identifier

2.7.1.3 Parity

Except for the identifier response (see Section 2.7.1.6) every SPI response (including the Communication Error response, see Section 2.7.1.5) includes an odd parity (LSB, [0]). The number of bits with the value one in the 16 bit response is odd (including the parity bit).

2.7.1.4 Command Definition

Figure 10 Acquire pressure command Figure 11 Acquire temperature command Figure 12 Trigger power-down command Figure 13 Trigger diagnosis command 0123456789101112131415 ASIC NAMESUPPLIER MSB LSB SILICON VERSION METAL VERSION 0123456789101112131415 0 01X 000000000000 0123456789101112131415 0 10X 000000000000 0123456789101112131415 1 010 000000000000 0123456789101112131415 1 00X 000000000000

Data Sheet 13 Revision 1.1, 2015-07-29 KP253 Digital Absolute Pressure Sensor Functional Description Figure 14 Acquire identifier command Note: The Reset-bit (C12) determines how the diagnostic re set is handled. For details about the function of the Reset-bit refer to Chapter 2.9.1. The “trigger test mode” command is only for informat ion. The test mode is only for calibration and E 2PROM programming. Both are already done during the supplier’s back-end assembly. The information should serve to avoid command for unintentional test mode operation. Note: Additional safeguards are provided to prevent unintentional test mode operation. For test mode operation, the command must be the first command after power-up in combination with a high voltage level at pin VPROG. Figure 15 Trigger test mode command

2.7.1.5 Communication Error

In normal operation only the pressu re, temperature, diagnosis and iden tifier commands are valid. Every abnormality of these commands (e.g. unused command, ot her value of unused bits, number of clocks not equal to 16n with n = 1, 2, 3...) will result in a communication error. The response to a detected communication error is given below. Figure 16 Response after a communication error

2.7.1.6 Identifier Response Definition

The response to an Acquire identifier command is a fixed value as stated below. With this response, the KP253 sensor can be indentified when operated in a bus system with several different parts. Figure 17 Identifier response definition 0123456789101112131415 1 11X 000000000000 0123456789101112131415 0 000 110000000000 0123456789101112131415 0 000 000000000001 0123456789101112131415 0 101 000100110111

Data Sheet 14 Revision 1.1, 2015-07-29 KP253 Digital Absolute Pressure Sensor Functional Description

2.7.2 Single Device Operation

Figure 18 shows an example on how to connect a singe device to a microcontroller. After NCS is pulled to low, the request command is sent to the sensor with the next 16 cycles of the CLK. The response of the sensor for the previous request command is returned at the same time. The SPI signal timing is shown in Figure 19. Figure 18 Example for single device operation Figure 19 Example for single device signal timing µC MDO MDI CLK KP25x SDO SDI CLK NCS NCS low for 16 CLK pulses NCS NCS CLK MDI MDO COMMAND_n ANSWER_n-1 time

16 CLK cycles

... COMMAND_n+1 ANSWER_n ...

Data Sheet 15 Revision 1.1, 2015-07-29 KP253 Digital Absolute Pressure Sensor Functional Description

2.7.3 Daisy Chain Operation

The sensors can be connected to one SPI connection in daisy chain operation to save microcontroller pins. The number of sensors connected in daisy chain operation is unlimited. Figure 20 Example for daisy chain operation Figure 20 shows an example of a combination of daisy chain mode and parallel operation. Note: Not all five sensors in this example could be a ddressed at once. Only one branch can be addressed at once (e.g. the KP25x_2.x branch). Finally only one NCS line can be low at the same time (NCS_S1, NCS_S2 or NCS_S3). The responding NCS line for the a ddressed sensor group must be low during the complete communication. During this time the provided number of clock pulses must be the multiplication result of 16 times the number of sensors in a daisy chain (e.g. 32 clock pulses for the KP25x_2.x branch in Figure 20) Figure 21 shows the whole signal diagram. It is important that NCS_S2.1 and NCS_S2.2 stay at the low level during the complete transmission. Therewith the sensor is able after receiving more than 16 clock pulses without a change in the NCS signal to switch automatically in daisy chain mode (in this example the first received 16 bit input data by the sensor S2.1 will be clocked to the output of sensor S2.1 with the last 16 clock pulses). µC MDO MDI CLK NCS_S1 NCS_S2 NCS_S3 KP25x_1.1 SDOSDI CLK NCS_S1 KP25x_2.1 SDOSDI CLK NCS_S2 KP25x_2.2 SDOSDI CLK NCS_S2 KP25x_3.2 SDOSDI CLK NCS_S3 KP25x_3.3 SDOSDI CLK NCS_S3 KP25x_3.1 SDOSDI CLK NCS_S3 NCS_S1 low for 16 CLK pulses NCS_S2 low for 32 CLK pulses NCS_S3 low for 48 CLK pulses

Data Sheet 16 Revision 1.1, 2015-07-29 KP253 Digital Absolute Pressure Sensor Functional Description Figure 21 Example for daisy chain signal diagram It is important that the nu mber of clock pulses is a multiple of 16. Otherwise all commands for a daisy chain branch will be identified as invalid commands and the response of all sensors on this branch will be 01H.

2.8 Start-up Behavior

During the start-up phase (tstart-up), there is no response on any commands.

2.9 Diagnosis

The sensor is able to detect automatically the following malfunctions:

• Signal path check (Diag1)
• Sensor cell check (Diag2)
• E 2PROM check If a malfunction is detected, the responding diagnosis code is sent with the next response. Note: The Diag1 and Diag2 test can only be triggered by a separate SPI command. If more than one test fails, only that diagnosis code with the highest priority will be sent. Table 4 Diagnosis codes Failure Priority Diagnosis Code E2PROM: FEC error 1 1 0 0 Acquisition chain failure: Diag1 1) Note: This diagnosis code is not valid until a self diagnosis is triggered by sending the Trigger diagnosis command. 2 010 Sensor cell failure: Diag21) 3 001 N o e r r o r 011 NCS_S2.1 CLK_S2.1 SDO_S2.1 SDI_S2.1 COMMAND_S2.2_n ANSWER_S2.1_n-1 ANSWER_S2.1_n-1 ANSWER_S2.2_n-1 NCS_S2.2 CLK_S2.2 SDO_S2.2 SDI_S2.2 COMMAND_S2.1_n COMMAND_S2.2_n COMMAND_S2.2_n ANSWER_S2.1_n-1 time

Data Sheet 17 Revision 1.1, 2015-07-29 KP253 Digital Absolute Pressure Sensor Functional Description

2.9.1 Diagnostic Reset

The Reset-bit (C12) of a SPI command allows using different reset strategies:

• C12 = ‘0‘: All detected failures will be reset (with the exeption of FEC error
• C12 = ‘1‘: A detected failure will not be reset Reset of FEC error is not possible. Once FEC error is detected and transmitted it remains until supply reset.

2.9.1.1 Reset-bit C12 = ‘0‘

A detected failure is only transmitted by the responding diagnosis code as long as the failure is present. The diagnosis code will be reset after once transmitted. Only if the failure is detected again, the diagnosis code will be transmitted again with the next response. Figure 22 Example for reset strategy Reset-bit C12 = ‘0‘

2.9.1.2 Reset-bit C12 = ‘1‘

Once a failure is detected the responding diagnosis code will be transmitted as long as:

• A failure with a higher priority is not detected
• The sensor is not reset (power down)
• Independent of the presence of the failure Figure 23 Example for reset strategy Reset-bit C12 = ‘1‘ time failure presence command diagnosis code response 011 100 100 011 e.g. E²PROM FEC error pressure sampling time failure presence command diagnosis code response 011 100 100 100 e.g. E²PROM FEC error pressure sampling

Data Sheet 18 Revision 1.1, 2015-07-29 KP253 Digital Absolute Pressure Sensor Functional Description

2.9.2 Pressure out of Range

If the pressure value falls below the lower limit or exceeds the higher limit the pressure value will be clipped. The limits are defined in Table 10 “Transfer function” on Page 25.

2.9.3 Diag1

The Diag1 test checks the functional ity of the signal path. Therefore th e inputs of the sigma delta ADC are shorted. Afterwards, the system response is compared with the expected range (~ 50% of full scale range). If the system response is out of range, the diagnosis code is set. Figure 24 Diag1 functionality

2.9.4 Diag2

The Diag2 test checks the functionality of the pressu re sensor cells. Therefore a malfunction (e.g. broken membrane) can be detected. The KP 253 pressure sensing el ement is made of 2 measuring cells and 2 reference cells. In the normal mode these four cells ar e connected in a Wheatstone bridge configuration. In the Diag2 mode, the connection of the cells is modified as shown in Figure 25. Figure 25 Diag2 functionality ΣΔ ADC Decimation Filter U = f (p) p p Normal Operation U = f (p) pp Diag2 Mode

Data Sheet 19 Revision 1.1, 2015-07-29 KP253 Digital Absolute Pressure Sensor Functional Description

2.9.5 E 2PROM Check

During the initialization phase, and after receiving a SPI command, the content of the E2PROM cells is copied into the corresponding E2PROM registers. Thereby, a parity check is done based on the parity row and column. A one bit error is corrected by the forward error correcti on. Any additional bit error results in an FECerror. In that case the diagnosis code 1 will be transmitted with the next response

Data Sheet 20 Revision 1.1, 2015-07-29 KP253 Digital Absolute Pressure Sensor Specification

3 Specification

3.1 Application Circuit Example

Figure 26 Application circuit example Table 5 Component values Component Symbol Values Unit Min. Typ. Max. Supply Blocking Capacitor1) 1) The use of a blocking capacitor with a nominal value of 100nF is mandatory; any drift or tolerances in capacity of standard capacitors are already considered. To avoid any measurement inaccuracy the supply blocking capacitor has to be placed as close as possible to the VDD pin, at least the distance must be less than 10 mm. C1 302) 2) The minimum capacity including any variations or drift over lifetime must not undershoot this value. 100 – nF Microcontroller SPI Interface CS CLK MOSI MISO NCS CLK SDI SDO GND NC V PROG VDD KP25x 3.3/5.0V 100nF

Data Sheet 21 Revision 1.1, 2015-07-29 KP253 Digital Absolute Pressure Sensor Specification

3.2 Absolute Maximum Ratings

Attention: Stresses above the max. values listed in Table 6 “Absolute maximum ratings” may cause permanent damage to the device. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Maximum ratings are absolute ratings; exceeding only one of these values may cause irreversible damage to the integrated circuit. Table 6 Absolute maximum ratings Parameter Symbol Values Unit Note or Test Condition Number Min. Typ. Max. Voltage on any pin Vmax -0.3 – 5.5 6.0 V V Limited time: Max. 300 s 1.1 Voltage at output pins Vmax_out -0.3 – VDD + 0.3 V – 1.2 Storage temperature TS -40 – 125 °C – 1.3 Thermal resistance Rthj-pin – – 180 K/W Thermal resistance between the die and the pins 1.4 Maximum input pressure pamb_max 10 – 200 600 kPa kPa Limited time: Max. 300 s 1.5

Data Sheet 22 Revision 1.1, 2015-07-29 KP253 Digital Absolute Pressure Sensor Specification

3.3 Operating Range

The following operating conditions must not be exceeded in order to ensu re correct operation of the device. All parameters specified in the following sections refer to these operating conditions, unless noted otherwise. Table 7 Operating range Parameter Symbol Values Unit Note or Test Condition Number Min. Typ. Max. Supply voltage VDD3.3 VDD5.0 3.135 4.75 3.475 5.25 V V 2.1 Supply voltage power up/power down gradient Vgrad 1E-5 – 1E4 V/ms 2.2 Input voltage for low level at pins NCS, CLK & SDI V low_in -0.3 – 0.8 V 2.3 Input voltage for high level at pins NCS, CLK & SDI Vhigh_in 2.0 – 5.5 V Even with the supply voltage of VDD3.3_min the max. input voltage Vhigh_in is allowed; back biasing will not happen 2.4 Output voltage for low level at pin SDO Vlow_out ––0 . 4 V T e s t c u r r e n t a t p i n SDO is 2.0mA 2.5 Output voltage for high level at pin SDO Vhigh_out VDDx.x - 0.4 – VDDx.x V Test current at pin SDO is 1.5mA 2.6 Operating temperature Ta -40 – +125 °C 2.7 Ambient operating pressure range pamb 60 – 165 kPa 2.8 Lifetime1) 1) The life time shall be considered as anticipation with re gard to the product that shall not extend the agreed warranty period. tlive 15 – – years 2.9

Data Sheet 23 Revision 1.1, 2015-07-29 KP253 Digital Absolute Pressure Sensor Specification

3.4 Characteristics

Product characteristic s involve the spread of valu es guaranteed within the specified voltage and ambient temperature range. Typical characteristics are the median of the production. Table 8 Electrical characteristics Parameter Symbol Values Unit Note or Test Condition Number Min. Typ. Max. Supply current into VDD IVDD – – 10.0 mA 3.1a Supply current into VDD during Power- down mode IVDD_PD – – 12.0 µA 3.1b Internal pressure update rate fupdate 150 – – kHz 3.2 Pressure signal path settling time tpath_pres ––5m s 3 . 3 a Temperature signal path settling time tpath_pres – – 15 ms 3.3b Start-up time tstart-up ––5m s n o r e s p o n s e o n S P I commands during the start-up time 3.4 Resolution of pressure transmission n Resolution of temperature transmission Capacitive load at pins NCS, CLK & SDI Cload_in – – 14 pF 3.7 Capacitive load at pin SDO Cload_out – – 19 pF 3.8 Tri state leakage current ISDO -5 – 5 µA NCS = high VDD = 5V 3.9 Hysteresis of input voltage at pins NCS, CLK & SDI V SPI_Hys 200 – – mV 3.10 Current sink for NCS, CLK & SDI (each pin) ISPI_in -100 µA µA @ Vlow_in = 0 V @ Vhigh_in = 5 V no back biasing 3.11

Data Sheet 24 Revision 1.1, 2015-07-29 KP253 Digital Absolute Pressure Sensor Specification Table 9 SPI timing Parameter Symbol Values Unit Note or Test Condition Number Min. Typ. Max. Clock frequency of SPI interface fSPI 0.1 – 5 MHz No limitation with lower frequencies, but not subject to production test 4.1 Transmission speed at SDO (20% - 80%) tSDO_trans 5 ns ns VSDO = 5V & Cload = 50pF VSDO = 5V & Cload = 150pF 4.2 Clock high time tclh 75 – – ns 4.3 Clock low time tcll 75 – – ns 4.4 NCS filter time1) tfNCS 10 – 60 ns Pulses below the NCS filter time will be ignored 4.5 Delay between NCS falling edge and SDO changing from tri- state to low t csdv – – 75 ns 4.6 Delay between CLK rising edge and start SDO data tpcld ––5 0 n s i n c l . tSDO_trans 4.7 Delay between CLK low and start NCS low tsclch 75 – – ns 4.8 Delay between NCS low and rising edge 1st CLK pulse thclcl 75 – – ns 4.9 Time between start SDI data and falling edge CLK t scld 15 – – ns 4.10 Time between falling edge CLK and end SDI data thcld 15 – – ns 4.11 Delay between falling edge lst CLK pulse and rising edge NCS tsclcl 100 – – ns 4.12 Delay between rising edge NCS and rising edge CLK pulse thclch 100 – – ns 4.13

Data Sheet 25 Revision 1.1, 2015-07-29 KP253 Digital Absolute Pressure Sensor Specification Delay between rising edge NCS and end SDO data tpchdz – – 75 ns 4.14 Time between rising edge NCS and falling edge next NCS t onncs 300 – – ns 4.15 1) not subject to production test - verified by characterization/design Table 10 Transfer function Parameter Symbol Values Unit Note or Test Condition Number Min. Typ. Max. Sensitivity pressure Sp – 39 – LSB /kPa 5.1 Offset pressure of fsp – -2340 – LSB 5.2 Sensitivity temperature ST – 20.48 – LSB /°C 5.3 Offset temperature offsT_3.3 offsT_5.0 839 819 LSB LSB VDD = 3.3 V V DD = 5.0 V 5.4 Accuracy pressure central temperature range accp_Tmid -1.0 -1.5 1.0 1.5 kPa kPa 0°C - 85°C Pamb: 70 ... 130 kPa Pamb: 60 ... 70 kPa or 130 ... 165 kPa 5.5a Accuracy pressure low temperature range accp_Tlow -1.5 -2.0 1.5 2.0 kPa kPa @-20°C Pamb: 70 ... 130 kPa Pamb: 60 ... 70 kPa or 130 ... 165 kPa 5.5b Accuracy pressure high temperature range accp_Thigh -2.0 -2.5 2.0 2.5 kPa kPa @125°C Pamb: 70 ... 130 kPa Pamb: 60 ... 70 kPa or 130 ... 165 kPa 5.5c Accuracy temperature accuracy is referenced to the ambient temperature 5.6 Pressure out of range: Low p low plow_d kPa LSB Accuracy not considered 5.7 Pressure out of range: High p high phigh_d 165 4095d kPa LSB Accuracy not considered 5.8 Table 9 SPI timing (cont’d) Parameter Symbol Values Unit Note or Test Condition Number Min. Typ. Max.

Data Sheet 26 Revision 1.1, 2015-07-29 KP253 Digital Absolute Pressure Sensor

Package Information

4 Package Information

For passivation the sensor is covered with a transparent gel.

4.1 PG-DSOF-8-16 Outline

OUTER DIMENSIONS DOES NOT INCLUDE PROTUSION OR INTRUSION OF 0.2 MAX. PER SIDE 1) VALID FOR THE WHOLE SEATING PLANE INCLUDED TIE BAR AREA

Data Sheet 27 Revision 1.1, 2015-07-29 KP253 Digital Absolute Pressure Sensor Green Product (RoHS compliant) To meet the world-wide customer requirements for en vironmentally friendly pro ducts and to be compliant with government regulations the device is available as a green product. Green products are RoHS-Compliant (i.e Pb-free finish on leads and suitable for Pb-free soldering according to IPC/JEDEC J-STD-020).

4.2 Identification Code

The identification code is provided in a machine readable format. The date and sales code are provided in human readable format. Figure 28 Identification code The identification code for the KP253 is on the same side of the package as pin 8 (GND). For further information on alternative packages, please visit our website: http://www.infineon.com/packages. Dimensions in mm Data Matrix Code 8 x 18 Dots Dot Size: 0.15 mm x 0.15 mm Date Code Sales Code BYYW KP 253 W B: BE Location ´M´ = Malacca ´R´ = Regensburg YY: Year WW: Week IP

Data Sheet 28 Revision 1.1 2015-07-29 KP253 Digital Absolute Pressure Sensor

Revision History

5 Revision History

KP253 Digital Absolute Pressure Sensor Revision History: 2015-07-29, Revision 1.1 Previous Revision: Revision 1.0 Page Subjects (major changes since last revision) Design improvement, new ordering code and marking

Trademarks of Infineon Technologies AG AURIX™, C166™, CanPAK™, CIPOS™, CIPURSE™, CoolMOS™, CoolSET™, CORE CONTROL™, CROSSAVE™, DAVE™, DI -POL™, EasyPIM™, EconoBRIDGE™, EconoDUAL™, EconoPIM™, EconoPAC K™, EiceDRIVER™, eupec™, FCOS ™, HITFET™, HybridPACK™, I 2RF™, ISOFACE™, IsoPACK™, MIPAQ™, ModSTACK™, my- d™, NovalithIC™, OptiMOS™, ORIGA™, POWERCODE™, PRIMARION™, PrimeP ACK™, PrimeSTACK™, PRO-SIL™, PROFET™, RASIC™, ReverSave™, SatR IC™, SIEGET™, SINDRION™, SIPMOS™, SmartLEWIS™, SPOC™, SO LID FLASH™, TEMPFET™, thinQ! ™, TRENCHSTOP™, TriCore™. Other Trademarks Advance Design System™ (ADS) of Agilent Technologies, AMBA™, ARM™, MULTI-ICE™, KEIL™, PRIMECELL™, REALVIEW™, THUMB™, µVision™ o f ARM Limited, UK. AUTOSAR™ is licensed by AUTOSAR development partnership. Blue tooth™ of Bluetooth SIG Inc. CA T-iq™ of DECT Fo rum. COLOSSUS™, FirstGPS™ of Consortium. HYPERTERMINAL™ of Hil graeve Incorporated. IEC™ of Commission Electrot echnique Internationale. IrDA™ of Infrared Dat a Association Corporation. ISO™ of INTERNATIONAL ORGANIZATION FOR STANDARDIZATIO N. MATLAB™ of MathWorks, Inc. MAXIM™ of Maxim Integrated Prod ucts, Inc. MICROTEC™, NUCLEUS™ of Mentor Graphics Corporation. MIPI™ of MI PI Alliance, Inc. MIPS™ of MIPS Technologies, Inc., USA. muRata™ of MURATA MANUFACTURING CO., MICROWAVE OFFICE™ (MWO) of Applied Wave Research Inc., Om niVision™ of OmniVision Technologies, Inc. Openwave ™ Openwave TOKO™ of TOKO KABUSHIKI KAISHA TA. UNIX™ of X/Open Company Limited. VERILOG™, PALLADIUM ™ of Cadence Design Systems, Inc. VLYNQ™ of Texas Instruments Incorporated. VXWORKS™, WIND RIVER™ of WIND RIVER SYSTEMS, INC. ZETEX™ of Diodes Zetex Limited. Last Trademarks Update 2011-11-11 Edition 2015-07-29 Published by Infineon Technologies AG

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