SMB380 Jennic, SMB380 Datasheet
SMB380
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SMB380 Summary of contents
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... SMB380 Triaxial acceleration sensor Data Sheet (preliminary) SMB380 Data sheet (preliminary) Order code Package type Data sheet version Release date Rev. 1.3 Notes © Bosch Sensortec GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such copying and passing on to third parties. BOSCH and the symbol are registered trademarks of Robert Bosch GmbH, Germany. ...
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... Advanced system power management for mobile applications • Shock Detection General description The SMB380 is a triaxial, low-g acceleration sensor IC with digital output for consumer market applications. It allows measurements of acceleration in perpendicular axes as well as absolute temperature measurement. An evaluation circuitry converts the output of a three-channel micromechanical acceleration- sensing structure that works according to the differential capacitance principle ...
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... Bosch Sensortec GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such copying and passing on to third parties. BOSCH and the symbol are registered trademarks of Robert Bosch GmbH, Germany. . Specifications are subject to change without notice. 7211RB11 Preliminary Data Sheet SMB380 Triaxial acceleration sensor Page 3 Bosch Sensortec 18-September-2007 ...
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... Bosch Sensortec GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such copying and passing on to third parties. BOSCH and the symbol are registered trademarks of Robert Bosch GmbH, Germany. . Specifications are subject to change without notice. 7211RB11 Preliminary Data Sheet SMB380 Triaxial acceleration sensor ............................................................................................... 40 ..................................................................................... 41 .............................................................................................................. 45 ...
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... For many applications it is beneficial to re-calibrate the offset after PCB assembly (see application note ANA016 “In-line offset re-calibration”). ** For more details on the SMB380’s current consumption during wake-up mode, please refer to chapter 7.3 Rev. 1.3 © Bosch Sensortec GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such copying and passing on to third parties ...
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... Bosch Sensortec GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such copying and passing on to third parties. BOSCH and the symbol are registered trademarks of Robert Bosch GmbH, Germany. . Specifications are subject to change without notice. 7211RB11 Preliminary Data Sheet SMB380 Triaxial acceleration sensor Condition Min nd ...
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... Maximum ratings Table 2: Maximum ratings specified for the SMB380 Parameter Supply Voltage Storage Temperature range EEPROM write cycles EEPROM retention Mechanical Shock ESD Stress above these limits may cause damage to the device. Exceeding the specified electrical limits may affect the device reliability or cause malfunction. ...
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... Internal trimming registers Reserved Registers The memory of SMB380 is realized in diverse physical architectures. Basically SMB380 uses volatile memory registers to operate. The volatile part of the memory can be changed and read quickly. Part of the volatile memory (“image” copy of the non-volatile memory (EEPROM). ...
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... Figure 1: Global memory map of SMB380 Rev. 1.3 © Bosch Sensortec GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such copying and passing on to third parties. BOSCH and the symbol are registered trademarks of Robert Bosch GmbH, Germany. ...
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... Bosch Sensortec GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such copying and passing on to third parties. BOSCH and the symbol are registered trademarks of Robert Bosch GmbH, Germany. . Specifications are subject to change without notice. 7211RB11 Preliminary Data Sheet SMB380 Triaxial acceleration sensor Page 10 Bosch Sensortec 18-September-2007 ...
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... BOSCH and the symbol are registered trademarks of Robert Bosch GmbH, Germany. . Specifications are subject to change without notice. 7211RB11 Preliminary Data Sheet SMB380 Triaxial acceleration sensor to correct value (SPI4=0 for SPI three-wire, Full scale acceleration range ...
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... Wake_up This bit (addre ss 15h, bit 0) makes SMB380 automatically switching from sleep mode to normal mode after the delay defined by wake_up_pause (section 3.1.5). When the sensor IC goes from sleep to normal mode, it starts acceleration acquisition and performs interrupt verificatio (section 3.2). The sensor IC automatically switches back from normal to sleep mode aga f ulfilment of programmed interrupt criteria has been detected ...
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... Shadow_dis SMB380 provides the possibility to block the update of data MSB while LSB are read out. This avoids a potential mixing of LSB and MSB of successive conversion cycles. When this bit (address 15h, bit the blocking procedure for MSB is not realized and MSB only re ading is possible ...
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... This bit can be masked by enable_ adv_INT, the value of this bit is ignored when enable_adv_INT=0 (section 3.2.3). 3 .2.5 Alert: If this bit (address 0Bh, bit the any_motion criterion will set SMB380 into alert mode (s ection 3.2.9). This bit can be masked by enable_adv_INT, the value of this bit is ignored when enable_adv_INT=0 (section 3.2.3). Rev. 1.3 © ...
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... If this bit (address 15h, bit interrupts are latched. The INT pad stays high until microprocessor detects it and writes reset_INT control bit to 1 (section 3.3.1). When this bit interrupts are set and reset directly by SMB380 according to programmable criteria (sections 3.2.7 and 3.2.8). ...
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... Bosch Sensortec GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such copying and passing on to third parties. BOSCH and the symbol are registered trademarks of Robert Bosch GmbH, Germany. . Specifications are subject to change without notice. 7211RB11 Preliminary Data Sheet SMB380 Triaxial acceleration sensor r interrupt generation when absolute value of |acc_x | HG_thres / 255 * range ...
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... Any_motion_dur is used to filter the motion profile and also to define a minimum interrupt duration because the reset condition is also filtered. A ny_motion_thres can be used to generate an any_motion interrupt or to put SMB380 in alert m ode to preload the low-g or high-g threshold logic (enables reduction of reaction time in tumbling mode); this is selected by alert bit (section 3.2.5). These two modes (any_motion and alert) can not be turned on simultaneously ...
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... Bosch Sensortec GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such copying and passing on to third parties. BOSCH and the symbol are registered trademarks of Robert Bosch GmbH, Germany. . Specifications are subject to change without notice. 7211RB11 Preliminary Data Sheet SMB380 Triaxial acceleration sensor Page 18 Bosch Sensortec 18-September-2007 ...
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... New_data_int If this bit (address 15h, bit 5) is set interrupt will be generated when all three axes acceleration values are new, i.e. SMB380 updated all acceleration values after latest serial read-out. Interrupt generated from new data detection is a latched one; microcontroller has to write reset_INT at 1 after interrupt has been detected high (section 3.3.1). This interrupt is also reset by any acceleration byte read procedure (read access to address 02h to 07h) ...
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... SMB380 sets acknowledge. The SMB380 sets acknowledge for both unprotected and protected registers. The SMB380 sets acknowledge for both unprotected and protected resisters; no write is done for protected register. acknowledge is set by master; no error detection is possible; SDI is set to Hi-Z for protected register (0xFF is ...
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... MB380 is reset each time this bit (address 0Ah p ower-on reset. Control, status and image registers are reset to values stored in the EEPROM. After soft_res et or power-on reset SMB380 comes up in normal mode or wake-up mode possible t o boot SMB380 to sleep mode. ...
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... Alert_phase This status bit (address 09h, bit 4) is set when SMB380 has been set to alert mode (section 3.2.5) and an any motion criterion has been detected. During alert phase, HG_dur and LG_dur variables are decreased to have a smaller reaction time when HG_thres and LG_thres t hresholds are crossed ...
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... Data registers 3.5.1 Temp A thermometer (address 08h, bit 7-0) is embedded in SMB380. Temperature resolution is 0.5°C/LSB. Code 00h stands for lowest temperature which is -30°C. This minimum value can be corrected by trimming of the offset of the temperature sensor IC (not described in this datasheet). 3.5.2 Acc_x, acc_y, acc_z Acceleration values are stored in the following registers to be read out through serial interface. ...
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... BOSCH and the symbol are registered trademarks of Robert Bosch GmbH, Germany. . Specifications are subject to change without notice. 7211RB11 Preliminary Data Sheet SMB380 Triaxial acceleration sensor _y, new_data_z by customer to be able to recognize SMB380. This code is Page 24 Bosch Sensortec 18-September-2007 ...
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... The 4-wire SPI interface uses SCK (serial clock), CSB (chip select), SDI (serial data in) and SDO (serial data out). CSB is active low. Data on SDI is latched by SMB380 at SCK rising edge and SDO is changed at SCK falling edge (SPI mode 3). Communication starts when CSB goes to low and stops when CSB goes to high ...
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... Bosch Sensortec GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such copying and passing on to third parties. BOSCH and the symbol are registered trademarks of Robert Bosch GmbH, Germany. . Specifications are subject to change without notice. 7211RB11 Preliminary Data Sheet SMB380 Triaxial acceleration sensor T_low_sck_4 T_high_sck_4 T_hold_sdi_4 ...
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... Bosch Sensortec GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such copying and passing on to third parties. BOSCH and the symbol are registered trademarks of Robert Bosch GmbH, Germany. . Specifications are subject to change without notice. 7211RB11 Preliminary Data Sheet SMB380 Triaxial acceleration sensor Conditions Vddio=1.62V to 3.6V Vddio=1.62V to 3.6V ...
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... Bosch Sensortec GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such copying and passing on to third parties. BOSCH and the symbol are registered trademarks of Robert Bosch GmbH, Germany. . Specifications are subject to change without notice. 7211RB11 Preliminary Data Sheet SMB380 Triaxial acceleration sensor Data byte Control byte Data register - adress 1Eh ...
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... Bosch Sensortec GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such copying and passing on to third parties. BOSCH and the symbol are registered trademarks of Robert Bosch GmbH, Germany. . Specifications are subject to change without notice. 7211RB11 Preliminary Data Sheet SMB380 Triaxial acceleration sensor T_delay_sdi_3 T_setup_sdi_3 Xtra ...
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... Bosch Sensortec GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such copying and passing on to third parties. BOSCH and the symbol are registered trademarks of Robert Bosch GmbH, Germany. . Specifications are subject to change without notice. 7211RB11 Preliminary Data Sheet SMB380 Triaxial acceleration sensor Conditions Vddio=1.62V to 3.6V Vddio=1.62V to 3.6V 0.7*Vddio Vddio=1 ...
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... Bosch Sensortec GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such copying and passing on to third parties. BOSCH and the symbol are registered trademarks of Robert Bosch GmbH, Germany. . Specifications are subject to change without notice. 7211RB11 Preliminary Data Sheet SMB380 Triaxial acceleration sensor AD3 AD 2 ...
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... I²C interface The SMB380 automatically detects I this document. The I²C bus uses SCK (serial clock) and SDA (=SDI, serial data input/output). SDA is bidirectional with pull down open drain; it must be externally connected to VDDIO via a pull up resistor. CSB is not used and must be connected to VDDIO. ...
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... Bosch Sensortec GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such copying and passing on to third parties. BOSCH and the symbol are registered trademarks of Robert Bosch GmbH, Germany. . Specifications are subject to change without notice. 7211RB11 Preliminary Data Sheet SMB380 Triaxial acceleration sensor Conditions Vddio=1.62V to 3.6V Vddio=1.62V to 3.6V ...
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... K puls e (see Acknowledge: After start condition each data transfer is followed b transmitter let the SDA line high (no pull down) and generates a high SCK pulse. If SMB380 has been addressed transfe pull down). Then SDA line is let free enabling the next transfer (see figure 14). ...
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... Bosch Sensortec GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such copying and passing on to third parties. BOSCH and the symbol are registered trademarks of Robert Bosch GmbH, Germany. . Specifications are subject to change without notice. 7211RB11 Preliminary Data Sheet SMB380 Triaxial acceleration sensor Data line Change of stable, data ...
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... After slave address and RW bit, the master sends 1 control byte: the 7-bit register address and one dummy bit. When SMB380 is accessed in write mode, sequences of 2 bytes (= 1 control byte to define which address will be written and 1 data byte) must be sent: Figure 15: I²C multiple write protocol ...
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... Figure 16: I²C multiple read protocol. Address register is first written to SMB380, the RW=0 (lowest acceleration data located at address 02h). I²C transfer is stopped and restarted with RW=1, address is automatically incremented and the 6 bytes can be sequentially read out. ...
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... Package 5.1 Outline dimensions The SMB380 is packaged in a 3mm x 3mm x 0.9mm mold package following JEDEC MO-229. P ackage outline geometry is based on: Mold package footprint Height No. of leads Lead pitch Please note: In addition to QFN package th codenamed “BMA150”. The QFN and LGA packages are 100% pin compatible. ...
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... Axes orientation The following diagram describes the orientation of the package with respect to the axes of acceleration measuremen t. Figure 18: Axes orientation of the SMB380 + Rev. 1.3 © Bosch Sensortec GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such copying and passing on to third parties ...
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... Landing pattern recommendations As for the design of the landing p Note: this information is valid for QFN (SMB380) as well as LGA packages (BMA150) F igure 19: Landing patterns for the SMB380 Dimensions in Figure 20: Perspective view of the SMB380 relative to the PCB landing pattern. Rev. 1.3 © Bosch Sensortec GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such copying and passing on to third parties ...
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... Moisture sensitivity level and soldering The moisture sensitivity level of the SMB380 sensor IC corresponds to JEDEC Level 1 IPC/JEDEC J-STD-020C - Classification for Non-hermetic Solid State Surface Mount Devices" IPC/JEDEC J-STD-033A "Joint Industry Standard: Handling, Packing, Shipping and Use of - Moisture/Reflow Sensitive Surface Mount Devices". The sensor IC fulfils the lead-free soldering requirements of the above-mentioned IPC/JEDEC standard, i.e. reflow soldering with a peak temperature up to 260° ...
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... Pin-out out and connection diagrams Figure 21: Pin-out of the SMB380 (top view); Note: The pin-out of the SMB380 in QFN and SMB380 in LGA package (=BMA150) are ide ntical Table 12: Pin-out descriptio n of the SMB380 ...
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... Bosch Sensortec GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such copying and passing on to third parties. BOSCH and the symbol are registered trademarks of Robert Bosch GmbH, Germany. . Specifications are subject to change without notice. 7211RB11 Preliminary Data Sheet SMB380 Triaxial acceleration sensor ith 3-w ire S PI interf ...
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... Bosch Sensortec GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such copying and passing on to third parties. BOSCH and the symbol are registered trademarks of Robert Bosch GmbH, Germany. . Specifications are subject to change without notice. 7211RB11 Preliminary Data Sheet SMB380 Triaxial acceleration sensor Page 44 Bosch Sensortec 18-September-2007 ...
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... EEPROM values can be read and changed. In parallel to normal operation the user has the option to activate several internal logic paths and set criteria to trigger the interrupt pin. SMB380 is designed to enable low current consumption of 200µA in operational mode. ...
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... The following table shows values calculated for the current consumption during wake-up mode of the SMB380. The power consumption in wake-up mode is dependent on the duration of the in terrupt algorithm. Thus, bandwidth and duration settings (any motion duration, low-g and high- g duration) have to be taken in ...
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... BOSCH and the symbol are registered trademarks of Robert Bosch GmbH, Germany. . Specifications are subject to change without notice. . Specifications are subject to change without notice. 7211RB11 7211RB11 Preliminary Data Sheet Preliminary Data Sheet SMB380 SMB380 Triaxial acceleration sensor Triaxial acceleration sensor na log filter at 1.5kHz. Ad ...
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... Bosch Sensortec GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such copying and passing on to third parties. BOSCH and the symbol are registered trademarks of Robert Bosch GmbH, Germany. . Specifications are subject to change without notice. 7211RB11 Preliminary Data Sheet SMB380 Triaxial acceleration sensor Page 48 Bosch Sensortec 18-September-2007 ...
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... Bosch Sensortec GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such copying and passing on to third parties. BOSCH and the symbol are registered trademarks of Robert Bosch GmbH, Germany. . Specifications are subject to change without notice. 7211RB11 Preliminary Data Sheet SMB380 Triaxial acceleration sensor Page 49 Bosch Sensortec 18-September-2007 ...
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... high bandwidth and a fast response MEMS device SMB380 is capable to detect shock situations. The “any motion interrupt” high-g criterion setting can be used to give a shock alert. The phase shift between onset of mechanical shock and interrupt output is defined by the mechanical transfer function of the chassis and internal mounting interfaces (e ...
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... BOSCH and the symbol are registered trademarks of Robert Bosch GmbH, Germany. . Specifications are subject to change without notice. 7211RB11 Preliminary Data Sheet SMB380 Triaxial acceleration sensor Sensortec from all third party claims arising from any Page 51 ...
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... Specification update Inserted reference to ANA016 application note 31-Aug-07 Added current consumption values during wake-up mode Mechanical shock Using overlapping pins for optical inspection Halogen content of SMB380 Extension of global memory map (figure 1) Table 12, pin 1 and 10 Default SPI interface is 4-wire Page 52 Bosch Sensortec ...