Air Conditioner

Air Conditioner

Such as efficiency of motor driving, low power consumption and miniaturization are important in designing air conditioner. Toshiba provides information on a wide range of semiconductor products suitable for power sullpy units, motor driving units, control units, sensor signal input units, 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.

 MCU MCU Keys Keys Key Input Key Input Sensor Input Sensor Input TVS TVS M M M M M M Indoor Fan Indoor Fan Louvers Louvers Cleaning Unit Cleaning Unit LED LED Motor Controller Motor Controller IPD IPD Motor Driver Motor Driver Motor Driver Motor Driver MCU MCU M M M M Outdoor Fan Outdoor Fan Compressor Compressor IPD IPD Triac Triac 2Way Valve/ 4Way Valve 2Way Valve/4Way Valve Gate Driver Gate Driver Sensor Input Sensor Input Temp. sensor Temp.sensor Isolation Isolation LED Driver LED Driver Brushless Brushless Brushless / Stepping Brushless / Stepping Brushed / Stepping Brushed / Stepping Brushless Brushless Brushless Brushless Isolation Isolation Dust Sensor Dust Sensor Indoor Indoor Unit Unit Outdoor Outdoor Unit Unit MOSFET MOSFET Valve Control Valve Control Op-amp Op-amp Op-amp Op-amp Logic / Motor Power Logic / Motor Power AC-DC /PFC AC-DC/PFC Power Management Power Management Logic / Motor Power Logic / Motor Power AC-DC /PFC AC-DC/PFC Power Management Power Management Pyroelectric Infrared Sensor Pyroelectric Infrared Sensor Op-amp Op-amp Temperature Sensor Temperature Sensor Op-amp Op-amp Humidity Sensor HumiditySensor Op-amp Op-amp Ambient Light Sensor Ambient Light Sensor Op-amp Op-amp Power Management(Indoor Unit) Key input circuit Ambient light sensor circuit Humidity sensor circuit Temperature sensor circuit Human sensor circuit Dust sensor circuit Fan section (Indoor Unit) Louver section Cleaning section Isolation circuit(Between outdoor and indoor units)
Power Management (Indoor Unit)

Example of Flyback AC-DC converter circuit for indoor unit

Example of active type PFC circuit

Example of partical switching type PFC circuit

Fan section (Indoor Unit)

Examples of peripheral circuits for fans using HV-IPDs

Examples of peripheral circuits for fans using MCD (controller) + HV-IPD

Examples of peripheral circuits for fans using MCU (Three-phase motor controller) + HV-IPD

Cleaning section

Example of stepping motor drive circuit using MCD (controller)

Louver section

Example of brushed/stepping motor drive circuit using transistor array

Isolation circuit (Between outdoor and indoor units)

Example of a protection circuit using a photocoupler that protects against noise applied from a harness between board communication

Dust sensor circuit

Example of the circuit using operational amplifier for amplifying dust sensor signal

Human sensor circuit

Example of the circuit using operational amplifier for amplifying human sensor signal

Temperature sensor circuit

Example of the circuit using operational amplifier for amplifying temperature sensor signal

Humidity sensor circuit

Example of the circuit using operational amplifier for amplifying humidity sensor signal

Ambient light sensor circuit

Example of the circuit using operational amplifier for amplifying ambient light sensor signal

Key input circuit

Example of key input circuit using TVS diode for electrostatic protection

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

 MCU MCU Keys Keys Key Input Key Input Sensor Input Sensor Input TVS TVS M M M M M M Indoor Fan Indoor Fan Louvers Louvers Cleaning Unit Cleaning Unit LED LED Motor Controller Motor Controller IPD IPD Motor Driver Motor Driver Motor Driver Motor Driver MCU MCU M M M M Outdoor Fan Outdoor Fan Compressor Compressor IPD IPD Triac Triac 2Way Valve/ 4Way Valve 2Way Valve/4Way Valve Gate Driver Gate Driver Sensor Input Sensor Input Temp. sensor Temp.sensor Isolation Isolation LED Driver LED Driver Brushless Brushless Brushless / Stepping Brushless / Stepping Brushed / Stepping Brushed / Stepping Brushless Brushless Brushless Brushless Isolation Isolation Dust Sensor Dust Sensor Indoor Indoor Unit Unit Outdoor Outdoor Unit Unit MOSFET MOSFET Valve Control Valve Control Op-amp Op-amp Op-amp Op-amp Logic / Motor Power Logic / Motor Power 長方形 AC-DC /PFC AC-DC/PFC Power Management Power Management Logic / Motor Power Logic / Motor Power AC-DC /PFC AC-DC/PFC Power Management Power Management Pyroelectric Infrared Sensor Pyroelectric Infrared Sensor Op-amp Op-amp Temperature Sensor Temperature Sensor Op-amp Op-amp Humidity Sensor HumiditySensor Op-amp Op-amp Ambient Light Sensor Ambient Light Sensor Op-amp Op-amp Power Management (Outdoor Unit) Isolation circuit (Between outdoor and indoor units) Power control block(Outdoor Unit) Fan section(Outdoor Unit) Compressor section Valve control section
Power Management (Outdoor Unit)

Example of Flyback AC-DC converter circuit for outdoor unit

Example of active type PFC circuit

Example of partical switching type PFC circuit

Microcontroller section(Outdoor Unit)

Example of a power supply circuit for MCU using LDO

Fan section(Outdoor Unit)

Examples of peripheral circuits for fans using HV-IPDs

Examples of peripheral circuits for fans using MCD (controller) + HV-IPD

Examples of peripheral circuits for fans using MCU (Three-phase motor controller) + HV-IPD

Compressor section

Example of compressor drive circuits using MOSFETs

Valve control section

Example of valve control circuit using MCU

Isolation circuit (Between outdoor and indoor units)

Example of a protection circuit using a photocoupler that protects against noise applied from a harness between board communication

Sub block diagram

Power Management (Indoor Unit)
AC-DC converter circuit (Indoor unit)

Example of Flyback AC-DC converter circuit for indoor unit

Example of Flyback AC-DC converter circuit for indoor unit
π-MOSⅧ Series MOSFET
Part Number
Toshiba Package Name TO-220SIS TO-220SIS TO-3P(N)
VDSS (Max) [V] 800 800 900
ID (Max) [A] 6.0 10 9.0
RDS(ON) (Max) [Ω] @ |VGS| = 10.0 [V] 1.7 1.0 1.3
Polarity N-ch N-ch N-ch
Transistor output photocoupler
Part Number
Toshiba Package Name 4pin SO6L SO4 4pin SO6L
BVS (Min) [Vrms] @ t = 60 [s] 5000 3750 5000
VCEO (Max) [V] 80 80 80
Topr [°C] -55 to 125 -55 to 125 -55 to 110
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
PFC circuit (Active type)

Example of active type PFC circuit

Example of active type PFC circuit
TXZ+TM 4A Series M4K Group / TX04 Series M470 Group / TX03 Series M370 Group
DTMOSⅥ Series MOSFET
Part Number
Toshiba Package Name TOLL TO-247
VDSS (Max) [V] 650 650
ID (Max) [A] 38 57
RDS(ON) (Max) [Ω] @ |VGS| = 10.0 [V] 0.065 0.04
Polarity N-ch N-ch
Discrete IGBT
Part Number
Toshiba Package Name TO-3P(N) TO-3P(N) TO-3P(N) TO-3P(N)
VCES (Max) [V] 600 600 600 650
IC (Max) [A] 50 30 59 60
PFC circuit (Partical switching type)

Example of partical switching type PFC circuit

Example of partical switching type PFC circuit
TXZ+TM 4A Series M4K Group / TX04 Series M470 Group / TX03 Series M370 Group
Discrete IGBT
Part Number
Toshiba Package Name TO-3P(N) TO-3P(N) TO-3P(N) TO-3P(N)
VCES (Max) [V] 600 600 600 650
IC (Max) [A] 50 30 59 60
Fan section (Indoor Unit)
Fan section (indoor/outdoor units) High voltage IPD

Examples of peripheral circuits for fans using HV-IPDs

Examples of peripheral circuits for fans using HV-IPDs
TXZ+TM 4A Series M4K Group / TX04 Series M470 Group / TX03 Series M370 Group
TXZ+TM 3A Series M3H Group
High Voltage IPD
Part Number
Toshiba Package name HSSOP31
VBB (Max) [V] 600
VCC (Max) [V] 20
IO (Max) [A] 0.7
Fan section (indoor/outdoor units) MCD (controller) + high voltage IPD

Examples of peripheral circuits for fans using MCD (controller) + HV-IPD

Examples of peripheral circuits for fans using MCD (controller) + HV-IPD
TXZ+TM 4A Series M4K Group / TX04 Series M470 Group / TX03 Series M370 Group
TXZ+TM 3A Series M3H Group
Three-phase brushless DC motor controller
Part Number
Toshiba Package Name SSOP30-P-300-0.65 P-VQFN32-0505-0.50-005 SSOP30-P-300-0.65 SSOP30-P-300-0.65 SSOP30-P-300-0.65
VOUT (Max) [V] 18 18 18 18 18
IOUT (Max) [A] 0.002 0.002 0.002 0.002 0.002
VM [V] 6 to 16.5 6 to 16.5 6 to 16.5 6 to 16.5 6 to 16.5
RON (Typ.) [Ω]          
Three-phase brushless DC motor driver
Part Number
Toshiba Package Name P-HDIP30-1233-1.78-001 P-HSSOP34-0918-0.80-001
VOUT (Max) [V] 600 600
IOUT (Max) [A] 2 2
VM [V] 50 to 450 50 to 450
RON (Typ.) [Ω]    
High voltage IPD
Part Number
Toshiba Package name SSOP30 HSSOP31 HSSOP31 HDIP30 HDIP30
VBB (Max) [V] 600 600 600 600 600
VCC (Max) [V] 18 20 20 20 20
IO (Max) [A] 2.5 1 2 1 2
Fan section (indoor/outdoor units) MCU (Three-phase motor controller) + high voltage IPD

Examples of peripheral circuits for fans using MCU (Three-phase motor controller) + HV-IPD

Examples of peripheral circuits for fans using MCU (Three-phase motor controller) + HV-IPD
TXZ+TM 4A Series M4K Group / TX04 Series M470 Group / TX03 Series M370 Group
TXZ+TM 3A Series M3H Group
High voltage IPD
Part Number
Toshiba Package name SSOP30 HSSOP31 HSSOP31 HDIP30 HDIP30
VBB (Max) [V] 600 600 600 600 600
VCC (Max) [V] 18 20 20 20 20
IO (Max) [A] 2.5 1 2 1 2
Cleaning section
Cleaning section

Example of stepping motor drive circuit using MCD (controller)

Example of stepping motor drive circuit using MCD (controller)
Stepping motor
Part Number
Toshiba Package Name P-TSSOP16-0505-0.65-001
VOUT (Max) [V] 18
IOUT (Max) [A] 1.1
VM [V] 2.5 to 15
RON (Typ.) [Ω] 0.8
Brushed DC motor driver
Part Number
Toshiba Package Name P-TSSOP16-0505-0.65-001 P-VQFN16-0303-0.50-001
VOUT (Max) [V] 18 18
IOUT (Max) [A] 2.0 2.0
VM [V] 2.5 to 16 2.5 to 16
RON(Normal) (Typ.) [Ω] 0.48 0.48
RON(Large) (Typ.) [Ω]    
TXZ+TM 3A Series M3H Group
Transistor array
Part Number
Toshiba Package Name SOL16 SOP18-P-375-1.27 P-SSOP24-0613-1.00-001
Number of Circuits 7 8 4
IOUT (Max) [mA/ch] 500 500 1500
Louver section
Louver section

Example of brushed/stepping motor drive circuit using transistor array

Example of brushed/stepping motor drive circuit using transistor array
TXZ+TM 3A Series M3H Group
Transistor array
Part Number
Toshiba Package Name SOL16 SOP18-P-375-1.27 P-SSOP24-0613-1.00-001
Number of Circuits 7 8 4
IOUT (Max) [mA/ch] 500 500 1500
Isolation circuit (Between outdoor and indoor units)
Isolation circuit (Between outdoor and indoor units)

Example of a protection circuit using a photocoupler that protects against noise applied from a harness between board communication

Example of a protection circuit using a photocoupler that protects against noise applied from a harness between board communication
TXZ+TM 4A Series M4K Group / TX04 Series M470 Group / TX03 Series M370 Group
TXZ+TM 3A Series M3H Group
Transistor output photocoupler
Part Number
Toshiba Package Name 4pin SO6L SO4 4pin SO6L
BVS (Min) [Vrms] @ t = 60 [s] 5000 3750 5000
VCEO (Max) [V] 80 80 80
Topr [°C] -55 to 125 -55 to 125 -55 to 110
Dust sensor circuit
Dust sensor circuit

Example of the circuit using operational amplifier for amplifying dust sensor signal

Example of the circuit using operational amplifier for amplifying dust sensor signal
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
Human sensor circuit
Human sensor circuit

Example of the circuit using operational amplifier for amplifying human sensor signal

Example of the circuit using operational amplifier for amplifying human sensor signal
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 sensor circuit
Temperature sensor circuit

Example of the circuit using operational amplifier for amplifying temperature sensor signal

Example of the circuit using operational amplifier for amplifying temperature sensor signal
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 sensor circuit
Humidity sensor circuit

Example of the circuit using operational amplifier for amplifying humidity sensor signal

Example of the circuit using operational amplifier for amplifying humidity sensor signal
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 sensor circuit
Ambient light sensor circuit

Example of the circuit using operational amplifier for amplifying ambient light sensor signal

Example of the circuit using operational amplifier for amplifying ambient light sensor signal
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
Key input circuit
Key input circuit

Example of key input circuit using TVS diode for electrostatic protection

Example of key input circuit using TVS diode for electrostatic protection
TXZ+TM 3A Series M3H Group
TVS diode
Part Number
Toshiba Package Name SOD-962 (SL2) SOD-962 (SL2) SOD-962 (SL2)
VESD (Max) [kV] +/-30 +/-20 +/-20
IR (Max) [µA] 0.1 0.1 0.1
Rdyn (Typ.) [Ω] 0.2 0.5 0.5
CT (Typ.) [pF] @ VR = 0 [V], f = 1 [MHz] 12 0.2 0.2
Power Management (Outdoor Unit)
AC-DC converter circuit (Outdoor unit)

Example of Flyback AC-DC converter circuit for outdoor unit

Example of Flyback AC-DC converter circuit for outdoor unit
π-MOSⅧ Series MOSFET
Part Number
Toshiba Package Name TO-220SIS TO-220SIS TO-3P(N)
VDSS (Max) [V] 800 800 900
ID (Max) [A] 6.0 10 9.0
RDS(ON) (Max) [Ω] @ |VGS| = 10.0 [V] 1.7 1.0 1.3
Polarity N-ch N-ch N-ch
Transistor output photocoupler
Part Number
Toshiba Package Name 4pin SO6L SO4 4pin SO6L
BVS (Min) [Vrms] @ t = 60 [s] 5000 3750 5000
VCEO (Max) [V] 80 80 80
Topr [°C] -55 to 125 -55 to 125 -55 to 110
PFC circuit (Active type)

Example of active type PFC circuit

Example of active type PFC circuit
TXZ+TM 4A Series M4K Group / TX04 Series M470 Group / TX03 Series M370 Group
DTMOSⅥ Series MOSFET
Part Number
Toshiba Package Name TOLL TO-247
VDSS (Max) [V] 650 650
ID (Max) [A] 38 57
RDS(ON) (Max) [Ω] @ |VGS| = 10.0 [V] 0.065 0.04
Polarity N-ch N-ch
Discrete IGBT
Part Number
Toshiba Package Name TO-3P(N) TO-3P(N) TO-3P(N) TO-3P(N)
VCES (Max) [V] 600 600 600 650
IC (Max) [A] 50 30 59 60
PFC circuit (Partical switching type)

Example of partical switching type PFC circuit

Example of partical switching type PFC circuit
TXZ+TM 4A Series M4K Group / TX04 Series M470 Group / TX03 Series M370 Group
Discrete IGBT