IoT Sensor

IoT Sensor

Such as low power consumption and miniaturization are important in designing IoT sensor. Toshiba provides information on a wide range of semiconductor products suitable for power supply units, sensor signal input units, control unit, display unit, etc., along with circuit configuration examples.

Overall block diagram

Click the area you want to check the details in the overall block diagram. Show links to our proposed sub-block diagram.

AC-DC converter circuit

Example of flyback type AC-DC converter circuit

Example of forward type AC-DC converter circuit

Gas detection circuit

Example of gas detection circuit for measuring degree of air pollution

Microphone amplifier circuit

Example of microphone circuit for voice recognition

Temperature detection circuit

Example of temperature detection circuit using an NTC thermistor

Humidity detection circuit

Example of humidity detection circuit using a resistive humidity sensor

Ambient light detection circuit

Example of the ambient light detection circuit using a photodiode

LED drive circuit

Example of LED drive circuit for operation status display

Main control section

Example of main control section

Sub block diagram

AC-DC converter circuit
AC-DC flyback power supply

Example of flyback type AC-DC converter circuit

Example of flyback type AC-DC converter circuit
MOSFET
Part Number
Toshiba Package Name TO-220SIS DPAK
VDSS (Max) [V] 500 500
ID (Max) [A] 18 11.5
RDS(ON) (Max) [Ω] @ |VGS| = 10.0 [V] 0.27 0.34
Polarity N-ch N-ch
SiC Schottky barrier diode
Part Number
Toshiba Package Name TO-220F-2L TO-247 TO-220-2L TO-220-2L DFN 8×8 DFN 8×8
IF(DC) (Max) [A] 12 24 2 12 4 12
VRRM (Max) [V] 650 650 650 650 650 650
VF (Max) [V] 1.6 1.6 1.35 1.35 1.35 1.35
IR (Max) [µA] @ VRRM (Max) 60 60 40 120 55 120
Bipolar transistor (Gate driver)
Part Number
Toshiba Package Name SOT-25 (SMV) SOT-25 (SMV)
VCEO (Q1) (Max) [V] -30 30
VCEO (Q2) (Max) [V] 30 -30
IC (Q1) (Max) [A] -1.0 2
IC (Q2) (Max) [A] 1.2 -1.8
Polarity (Q1) PNP NPN
Polarity (Q2) NPN PNP
IC output photocoupler
Part Number
Toshiba Package Name 5pin SO6 SO6L
BVS (Min) [Vrms] @ t = 60 [s] 3750 5000
VCC / VDD (Min) [V] 2.7  
VCC / VDD (Max) [V] 20  
ICC / IDD (Max) [mA] 0.001 0.001
Output Interface open-collector open-collector
AC-DC forward power supply

Example of forward type AC-DC converter circuit

Example of forward type AC-DC converter circuit
MOSFET
Part Number
Toshiba Package Name TO-220SIS DPAK
VDSS (Max) [V] 500 500
ID (Max) [A] 18 11.5
RDS(ON) (Max) [Ω] @ |VGS| = 10.0 [V] 0.27 0.34
Polarity N-ch N-ch
SiC Schottky barrier diode
Part Number
Toshiba Package Name TO-220F-2L TO-247 TO-220-2L TO-220-2L DFN 8×8 DFN 8×8
IF(DC) (Max) [A] 12 24 2 12 4 12
VRRM (Max) [V] 650 650 650 650 650 650
VF (Max) [V] 1.6 1.6 1.35 1.35 1.35 1.35
IR (Max) [µA] @ VRRM (Max) 60 60 40 120 55 120
Bipolar transistor (Gate driver)
Part Number
Toshiba Package Name SOT-25 (SMV) SOT-25 (SMV)
VCEO (Q1) (Max) [V] -30 30
VCEO (Q2) (Max) [V] 30 -30
IC (Q1) (Max) [A] -1.0 2
IC (Q2) (Max) [A] 1.2 -1.8
Polarity (Q1) PNP NPN
Polarity (Q2) NPN PNP
IC output photocoupler
Part Number
Toshiba Package Name 5pin SO6 SO6L
BVS (Min) [Vrms] @ t = 60 [s] 3750 5000
VCC / VDD (Min) [V] 2.7  
VCC / VDD (Max) [V] 20  
ICC / IDD (Max) [mA] 0.001 0.001
Output Interface open-collector open-collector
Gas detection circuit
Gas detection circuit

Example of gas detection circuit for measuring degree of air pollution

Example of gas detection circuit for measuring degree of air pollution
Small surface mount LDO regulator(1)
Part Number
Toshiba Package Name WCSP6F WCSP6F DFN5B DFN5B
IOUT (Max) [mA] 1500 1300 800 500
VOUT [V] 0.6 to 3.6 0.55 to 3.6 0.8 to 3.6 0.8 to 3.6
Small surface mount LDO regulator(2)
Part Number
Toshiba Package Name WCSP4F DFN4F WCSP4F SOT-553 (ESV) SOT-25 (SMV)
IOUT (Max) [mA] 500 300 300 200 200
VOUT [V] 0.9 to 5.0 0.9 to 4.5 0.8 to 5.0 0.8 to 3.6 1.5 to 5.0
Low current consumption op-amp / Low noise op-amp
Part Number
Toshiba Package Name SOT-25 (SMV) SOT-353F (UFV)
VCC (Max) [V] 5.5 5.5
VCC, VEE (Max) [V] +/-2.75 +/-2.75
Microphone amplifier circuit
Microphone amplifier circuit

Example of microphone circuit for voice recognition

Example of microphone circuit for voice recognition
Small surface mount LDO regulator(1)
Part Number
Toshiba Package Name WCSP6F WCSP6F DFN5B DFN5B
IOUT (Max) [mA] 1500 1300 800 500
VOUT [V] 0.6 to 3.6 0.55 to 3.6 0.8 to 3.6 0.8 to 3.6
Small surface mount LDO regulator(2)
Part Number
Toshiba Package Name WCSP4F DFN4F WCSP4F SOT-553 (ESV) SOT-25 (SMV)
IOUT (Max) [mA] 500 300 300 200 200
VOUT [V] 0.9 to 5.0 0.9 to 4.5 0.8 to 5.0 0.8 to 3.6 1.5 to 5.0
Low current consumption op-amp / Low noise op-amp
Part Number
Toshiba Package Name SOT-25 (SMV) SOT-353F (UFV)
VCC (Max) [V] 5.5 5.5
VCC, VEE (Max) [V] +/-2.75 +/-2.75
Temperature detection circuit
Temperature detection circuit

Example of temperature detection circuit using an NTC thermistor

Example of temperature detection circuit using an NTC thermistor
Small surface mount LDO regulator(1)
Part Number
Toshiba Package Name WCSP6F WCSP6F DFN5B DFN5B
IOUT (Max) [mA] 1500 1300 800 500
VOUT [V] 0.6 to 3.6 0.55 to 3.6 0.8 to 3.6 0.8 to 3.6
Small surface mount LDO regulator(2)
Part Number
Toshiba Package Name WCSP4F DFN4F WCSP4F SOT-553 (ESV) SOT-25 (SMV)
IOUT (Max) [mA] 500 300 300 200 200
VOUT [V] 0.9 to 5.0 0.9 to 4.5 0.8 to 5.0 0.8 to 3.6 1.5 to 5.0
Low current consumption op-amp / Low noise op-amp
Part Number
Toshiba Package Name SOT-25 (SMV) SOT-353F (UFV)
VCC (Max) [V] 5.5 5.5
VCC, VEE (Max) [V] +/-2.75 +/-2.75
Humidity detection circuit
Humidity detection circuit

Example of humidity detection circuit using a resistive humidity sensor

Example of humidity detection circuit using a resistive humidity sensor
Small surface mount LDO regulator(1)
Part Number
Toshiba Package Name WCSP6F WCSP6F DFN5B DFN5B
IOUT (Max) [mA] 1500 1300 800 500
VOUT [V] 0.6 to 3.6 0.55 to 3.6 0.8 to 3.6 0.8 to 3.6
Small surface mount LDO regulator(2)
Part Number
Toshiba Package Name WCSP4F DFN4F WCSP4F SOT-553 (ESV) SOT-25 (SMV)
IOUT (Max) [mA] 500 300 300 200 200
VOUT [V] 0.9 to 5.0 0.9 to 4.5 0.8 to 5.0 0.8 to 3.6 1.5 to 5.0
Low current consumption op-amp / Low noise op-amp
Part Number
Toshiba Package Name SOT-25 (SMV) SOT-353F (UFV)
VCC (Max) [V] 5.5 5.5
VCC, VEE (Max) [V] +/-2.75 +/-2.75
Ambient light detection circuit
Ambient light detection circuit

Example of the ambient light detection circuit using a photodiode

Example of the ambient light detection circuit using a photodiode
Small surface mount LDO regulator(1)
Part Number
Toshiba Package Name WCSP6F WCSP6F DFN5B DFN5B
IOUT (Max) [mA] 1500 1300 800 500
VOUT [V] 0.6 to 3.6 0.55 to 3.6 0.8 to 3.6 0.8 to 3.6
Small surface mount LDO regulator(2)
Part Number
Toshiba Package Name WCSP4F DFN4F WCSP4F SOT-553 (ESV) SOT-25 (SMV)
IOUT (Max) [mA] 500 300 300 200 200
VOUT [V] 0.9 to 5.0 0.9 to 4.5 0.8 to 5.0 0.8 to 3.6 1.5 to 5.0
Low current consumption op-amp / Low noise op-amp
Part Number
Toshiba Package Name SOT-25 (SMV) SOT-353F (UFV)
VCC (Max) [V] 5.5 5.5
VCC, VEE (Max) [V] +/-2.75 +/-2.75
LED drive circuit
LED drive circuit

Example of LED drive circuit for operation status display

Example of LED drive circuit for operation status display
Bipolar transistor
Part Number
Toshiba Package Name SOT-346 (S-Mini)
VCEO (Max) [V] -50
IC (Max) [A] -0.5
Polarity PNP
Main control section
Main control section

Example of main control section

Example of main control section

Solution Proposal

These documents explain the key points of recommended semiconductor products and their features. Please use them for product selection.

Reference Design

PCB photo example of Power multiplexer circuit
Power multiplexer circuit
In this reference design, a Power multiplexer circuit with 2 input and 1 output is implemented on a small PCB. MOSFET gate driver ICs, eFuse ICs, zener diodes and small package MOSFETs selected from Toshiba's diverse lineup are used create ideal diode like characteristics with BBM and MBB switching.
Power multiplexer circuit / 2 input and 1 output
Power supply circuit example of LDO regulator TCR3UG series application for power supply of IoT devices.
LDO Regulator TCR3UG Series Application for Power Supply of IoT Devices
This reference design provides document with low consumption current, PSRR, and dynamic response.The LDO has small package, low consumed power, and fast load transient response.
LDO Regulator / TCR3UG
Power supply circuit example of LDO regulator TCR15AG (fixed output voltage type) application & circuit.
LDO Regulator TCR15AG (fixed output voltage type) Application & Circuit
This reference design provides document with PSRR, dynamic response and controlling output voltage.The LDO has very small package and fixed output voltage for consumer application.
LDORegulator / TCR15AG
Power supply circuit example of LDO regulator TCR15AGADJ application & circuit.
LDO Regulator TCR15AGADJ Application & Circuit
This reference design provides document with PSRR, dynamic response and controlling output voltage. The LDO has very small package and adjustable output for consumer application.
LDO Regulator / Design / Support / Reference Design Center

Documents

Video

Design & Development

Switched Mode Power Supply Library

you can select and download various basic topologies of a power supply unit based on your actual requirements in order to verify the behavior of MOSFETs with your simulation environment.

Motor Control and Driver Circuit Library

you can select and download various basic topologies of motor driver such as three-phase inverter circuit based on your actual requirements in order to verify the behavior of MOSFETs and another devices for your simulation environment.

EDA/CAD Model Library

We provide simulation data, 3D models of packages, and land pattern models (2D models) used when developing product boards.

MCU Motor Studio

MCU Motor Studio features a PC Tool and motor control firmware dedicated to the TXZ+TM Family Advanced Class microcontrollers from Toshiba.

Contacts

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Frequently Asked Questions

FAQs
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