Automotive On-board Charger

Overall block diagram

Single phase power supply
Three-phase power supply

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12 V DC-DC converter (Isolated type)

Example of 12 V isolated step down DC-DC converter

Power supply ON/OFF control and reverse connection protection circuit

Example of ON/OFF control and reverse connection protecting circuit using N-ch MOSFET for 12 V power lines

Control circuit

Example of control circuit for on-board charger

Mechanical relay control circuit

Example of mechanical relay control circuit for on-board charger

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

12 V DC-DC converter (Isolated type)

Example of 12 V isolated step down DC-DC converter

Power supply ON/OFF control and reverse connection protection circuit

Example of ON/OFF control and reverse connection protecting circuit using N-ch MOSFET for 12 V power lines

Control circuit

Example of control circuit for on-board charger

Mechanical relay control circuit

Example of mechanical relay control circuit for on-board charger

Sub block diagram

12 V DC-DC converter (Isolated type)

Example of 12 V isolated step down DC-DC converter

U-MOS Series 40 V / 80 V / 100 V N-ch MOSFET
Transistor output photocoupler
TVS diode (for CAN communication)
General purpose small signal MOSFET
General purpose small signal bipolar transistor
Small signal bias resistor built-in transistor (BRT)

U-MOS Series 40 V / 80 V / 100 V N-ch MOSFET

Part Number	XPQ1R004PB	XPQR3004PB	XPQR8308QB	XPQ1R00AQB
Toshiba Package Name	L-TOGL	L-TOGL	L-TOGL	L-TOGL
V_DSS (Max) [V]	40	40	80	100
I_D (Max) [A]	200	400	350	300
R_DS(ON) (Max) [Ω] @ \|V_GS\| = 10.0 [V]	0.0010	0.00030	0.00083	0.00103
Polarity	N-ch	N-ch	N-ch	N-ch

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Transistor output photocoupler

Part Number	TLX9291A	TLX9185A	TLX9000	TLX9300	TLX9188
Toshiba Package Name	SO4	4pin SO6	SO4	4pin SO6	4pin SO6
BV_S (Min) [V_rms] @ t = 60 [s]	3750	3750	3750	3750	3750
V_CEO (Max) [V]	80	80	40	40	200
T_opr [°C]	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 125

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TVS diode (for CAN communication)

Part Number	DF3D18FU	DF3D29FU	DF3D36FU
Toshiba Package Name	SOT-323 (USM)	SOT-323 (USM)	SOT-323 (USM)
V_ESD (Max) [kV]	+/-30	+/-25	+/-20
I_R (Max) [µA]	0.1	0.1	0.1
R_dyn (Typ.) [Ω]	0.8	1.1	1.5
C_T (Typ.) [pF] @ V_R = 0 [V], f = 1 [MHz]	9	9	6.5

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General purpose small signal MOSFET

Part Number	SSM3K7002KF	SSM3J168F	SSM3J66MFV
Toshiba Package Name	SOT-346 (S-Mini)	SOT-346 (S-Mini)	SOT-723 (VESM)
V_DSS (Max) [V]	60	-60	-20
I_D (Max) [A]	0.4	-0.4	-0.8
R_DS(ON) (Max) [Ω] @ \|V_GS\| = 4.5 [V]	1.75	1.9	0.39
Polarity	N-ch	P-ch	P-ch

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General purpose small signal bipolar transistor

Part Number	2SA1832	2SC4738	2SC4116	2SA1586	2SC2712	2SA1162
Toshiba Package Name	SOT-416 (SSM)	SOT-416 (SSM)	SOT-323 (USM)	SOT-323 (USM)	SOT-346 (S-Mini)	SOT-346 (S-Mini)
V_CEO (Max) [V]	-50	50	50	-50	50	-50
I_C (Max) [A]	-0.15	0.15	0.15	-0.15	0.15	-0.15
Polarity	PNP	NPN	NPN	PNP	NPN	PNP

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Small signal bias resistor built-in transistor (BRT)

Part Number	RN1907FE	RN2907FE	RN1901	RN2901
Toshiba Package Name	SOT-563 (ES6)	SOT-563 (ES6)	SOT-363 (US6)	SOT-363 (US6)
V_CEO (Q1) (Max) [V]	50	-50	50	-50
V_CEO (Q2) (Max) [V]	50	-50	50	-50
I_C (Q1) (Max) [A]	0.1	-0.1	0.1	-0.1
I_C (Q2) (Max) [A]	0.1	-0.1	0.1	-0.1
Polarity (Q1)	NPN	PNP	NPN	PNP
Polarity (Q2)	NPN	PNP	NPN	PNP

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Power supply ON/OFF control and reverse connection protection circuit

Example of ON/OFF control and reverse connection protecting circuit using N-ch MOSFET for 12 V power lines

U-MOS Series 40 V / 80 V / 100 V N-ch MOSFET
TVS diode (for CAN communication)
General purpose small signal MOSFET
General purpose small signal bipolar transistor
Small signal bias resistor built-in transistor (BRT)
Gate driver (for switch)

U-MOS Series 40 V / 80 V / 100 V N-ch MOSFET

Part Number	XPQ1R004PB	XPQR3004PB	XPQR8308QB	XPQ1R00AQB
Toshiba Package Name	L-TOGL	L-TOGL	L-TOGL	L-TOGL
V_DSS (Max) [V]	40	40	80	100
I_D (Max) [A]	200	400	350	300
R_DS(ON) (Max) [Ω] @ \|V_GS\| = 10.0 [V]	0.0010	0.00030	0.00083	0.00103
Polarity	N-ch	N-ch	N-ch	N-ch

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TVS diode (for CAN communication)

Part Number	DF3D18FU	DF3D29FU	DF3D36FU
Toshiba Package Name	SOT-323 (USM)	SOT-323 (USM)	SOT-323 (USM)
V_ESD (Max) [kV]	+/-30	+/-25	+/-20
I_R (Max) [µA]	0.1	0.1	0.1
R_dyn (Typ.) [Ω]	0.8	1.1	1.5
C_T (Typ.) [pF] @ V_R = 0 [V], f = 1 [MHz]	9	9	6.5

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General purpose small signal MOSFET

Part Number	SSM3K7002KF	SSM3J168F	SSM3J66MFV
Toshiba Package Name	SOT-346 (S-Mini)	SOT-346 (S-Mini)	SOT-723 (VESM)
V_DSS (Max) [V]	60	-60	-20
I_D (Max) [A]	0.4	-0.4	-0.8
R_DS(ON) (Max) [Ω] @ \|V_GS\| = 4.5 [V]	1.75	1.9	0.39
Polarity	N-ch	P-ch	P-ch

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General purpose small signal bipolar transistor

Part Number	2SA1832	2SC4738	2SC4116	2SA1586	2SC2712	2SA1162
Toshiba Package Name	SOT-416 (SSM)	SOT-416 (SSM)	SOT-323 (USM)	SOT-323 (USM)	SOT-346 (S-Mini)	SOT-346 (S-Mini)
V_CEO (Max) [V]	-50	50	50	-50	50	-50
I_C (Max) [A]	-0.15	0.15	0.15	-0.15	0.15	-0.15
Polarity	PNP	NPN	NPN	PNP	NPN	PNP

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Small signal bias resistor built-in transistor (BRT)

Part Number	RN1907FE	RN2907FE	RN1901	RN2901
Toshiba Package Name	SOT-563 (ES6)	SOT-563 (ES6)	SOT-363 (US6)	SOT-363 (US6)
V_CEO (Q1) (Max) [V]	50	-50	50	-50
V_CEO (Q2) (Max) [V]	50	-50	50	-50
I_C (Q1) (Max) [A]	0.1	-0.1	0.1	-0.1
I_C (Q2) (Max) [A]	0.1	-0.1	0.1	-0.1
Polarity (Q1)	NPN	PNP	NPN	PNP
Polarity (Q2)	NPN	PNP	NPN	PNP

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Gate driver (for switch)

Part Number	TPD7104AF	TPD7106F	TPD7107F
Toshiba Package name	PS-8	SSOP16	WSON10A
V_BB (Max) [V]
V_CC (Max) [V]
I_O (Max) [A]	+5mA/ Internally Limited		Internally Limited /-5m

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Control circuit

Example of control circuit for on-board charger

Transistor output photocoupler
TVS diode (for CAN communication)
General purpose small signal MOSFET
General purpose small signal bipolar transistor
Small signal bias resistor built-in transistor (BRT)

Transistor output photocoupler

Part Number	TLX9291A	TLX9185A	TLX9000	TLX9300	TLX9188
Toshiba Package Name	SO4	4pin SO6	SO4	4pin SO6	4pin SO6
BV_S (Min) [V_rms] @ t = 60 [s]	3750	3750	3750	3750	3750
V_CEO (Max) [V]	80	80	40	40	200
T_opr [°C]	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 125

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TVS diode (for CAN communication)

Part Number	DF3D18FU	DF3D29FU	DF3D36FU
Toshiba Package Name	SOT-323 (USM)	SOT-323 (USM)	SOT-323 (USM)
V_ESD (Max) [kV]	+/-30	+/-25	+/-20
I_R (Max) [µA]	0.1	0.1	0.1
R_dyn (Typ.) [Ω]	0.8	1.1	1.5
C_T (Typ.) [pF] @ V_R = 0 [V], f = 1 [MHz]	9	9	6.5

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General purpose small signal MOSFET

Part Number	SSM3K7002KF	SSM3J168F	SSM3J66MFV
Toshiba Package Name	SOT-346 (S-Mini)	SOT-346 (S-Mini)	SOT-723 (VESM)
V_DSS (Max) [V]	60	-60	-20
I_D (Max) [A]	0.4	-0.4	-0.8
R_DS(ON) (Max) [Ω] @ \|V_GS\| = 4.5 [V]	1.75	1.9	0.39
Polarity	N-ch	P-ch	P-ch

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General purpose small signal bipolar transistor

Part Number	2SA1832	2SC4738	2SC4116	2SA1586	2SC2712	2SA1162
Toshiba Package Name	SOT-416 (SSM)	SOT-416 (SSM)	SOT-323 (USM)	SOT-323 (USM)	SOT-346 (S-Mini)	SOT-346 (S-Mini)
V_CEO (Max) [V]	-50	50	50	-50	50	-50
I_C (Max) [A]	-0.15	0.15	0.15	-0.15	0.15	-0.15
Polarity	PNP	NPN	NPN	PNP	NPN	PNP

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Small signal bias resistor built-in transistor (BRT)

Part Number	RN1907FE	RN2907FE	RN1901	RN2901
Toshiba Package Name	SOT-563 (ES6)	SOT-563 (ES6)	SOT-363 (US6)	SOT-363 (US6)
V_CEO (Q1) (Max) [V]	50	-50	50	-50
V_CEO (Q2) (Max) [V]	50	-50	50	-50
I_C (Q1) (Max) [A]	0.1	-0.1	0.1	-0.1
I_C (Q2) (Max) [A]	0.1	-0.1	0.1	-0.1
Polarity (Q1)	NPN	PNP	NPN	PNP
Polarity (Q2)	NPN	PNP	NPN	PNP

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Mechanical relay control circuit

Example of mechanical relay control circuit for on-board charger

TVS diode (for CAN communication)
MOSFET with a built-in active clamp circuit
Low side switch / High side switch (up to 1 A)
Low side switch / High side switch (1 to 5 A)
General purpose small signal MOSFET
General purpose small signal bipolar transistor
Small signal bias resistor built-in transistor (BRT)

TVS diode (for CAN communication)

Part Number	DF3D18FU	DF3D29FU	DF3D36FU
Toshiba Package Name	SOT-323 (USM)	SOT-323 (USM)	SOT-323 (USM)
V_ESD (Max) [kV]	+/-30	+/-25	+/-20
I_R (Max) [µA]	0.1	0.1	0.1
R_dyn (Typ.) [Ω]	0.8	1.1	1.5
C_T (Typ.) [pF] @ V_R = 0 [V], f = 1 [MHz]	9	9	6.5

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MOSFET with a built-in active clamp circuit

Part Number	SSM3K347R	SSM3K337R
Toshiba Package Name	SOT-23F	SOT-23F
V_DSS (Max) [V]	38	38
I_D (Max) [A]	2.0	2.0
R_DS(ON) (Max) [Ω] @ \|V_GS\| = 4.5 [V]	0.41	0.176
Polarity	N-ch + Active Clamp Zener	N-ch + Active Clamp Zener

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Low side switch / High side switch (up to 1 A)

Part Number	TPD1044F	TPD1054F	TPD1052F
Toshiba Package name	PS-8	PS-8	PS-8
V_BB (Max) [V]
V_CC (Max) [V]
I_O (Max) [A]		1.0	0.8

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Low side switch / High side switch (1 to 5 A)

Part Number	TPD1058FA	TPD1055FA
Toshiba Package name	WSON10	WSON10
V_BB (Max) [V]
V_CC (Max) [V]
I_O (Max) [A]	6.0	3.0

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General purpose small signal MOSFET

Part Number	SSM3K7002KF	SSM3J168F	SSM3J66MFV
Toshiba Package Name	SOT-346 (S-Mini)	SOT-346 (S-Mini)	SOT-723 (VESM)
V_DSS (Max) [V]	60	-60	-20
I_D (Max) [A]	0.4	-0.4	-0.8
R_DS(ON) (Max) [Ω] @ \|V_GS\| = 4.5 [V]	1.75	1.9	0.39
Polarity	N-ch	P-ch	P-ch

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General purpose small signal bipolar transistor

Part Number	2SA1832	2SC4738	2SC4116	2SA1586	2SC2712	2SA1162
Toshiba Package Name	SOT-416 (SSM)	SOT-416 (SSM)	SOT-323 (USM)	SOT-323 (USM)	SOT-346 (S-Mini)	SOT-346 (S-Mini)
V_CEO (Max) [V]	-50	50	50	-50	50	-50
I_C (Max) [A]	-0.15	0.15	0.15	-0.15	0.15	-0.15
Polarity	PNP	NPN	NPN	PNP	NPN	PNP

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Small signal bias resistor built-in transistor (BRT)

Part Number	RN1907FE	RN2907FE	RN1901	RN2901
Toshiba Package Name	SOT-563 (ES6)	SOT-563 (ES6)	SOT-363 (US6)	SOT-363 (US6)
V_CEO (Q1) (Max) [V]	50	-50	50	-50
V_CEO (Q2) (Max) [V]	50	-50	50	-50
I_C (Q1) (Max) [A]	0.1	-0.1	0.1	-0.1
I_C (Q2) (Max) [A]	0.1	-0.1	0.1	-0.1
Polarity (Q1)	NPN	PNP	NPN	PNP
Polarity (Q2)	NPN	PNP	NPN	PNP

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12 V DC-DC converter (Isolated type)

Example of 12 V isolated step down DC-DC converter

U-MOS Series 40 V / 80 V / 100 V N-ch MOSFET
Transistor output photocoupler
TVS diode (for CAN communication)
General purpose small signal MOSFET
General purpose small signal bipolar transistor
Small signal bias resistor built-in transistor (BRT)

U-MOS Series 40 V / 80 V / 100 V N-ch MOSFET

Part Number	XPQ1R004PB	XPQR3004PB	XPQR8308QB	XPQ1R00AQB
Toshiba Package Name	L-TOGL	L-TOGL	L-TOGL	L-TOGL
V_DSS (Max) [V]	40	40	80	100
I_D (Max) [A]	200	400	350	300
R_DS(ON) (Max) [Ω] @ \|V_GS\| = 10.0 [V]	0.0010	0.00030	0.00083	0.00103
Polarity	N-ch	N-ch	N-ch	N-ch

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Transistor output photocoupler

Part Number	TLX9291A	TLX9185A	TLX9000	TLX9300	TLX9188
Toshiba Package Name	SO4	4pin SO6	SO4	4pin SO6	4pin SO6
BV_S (Min) [V_rms] @ t = 60 [s]	3750	3750	3750	3750	3750
V_CEO (Max) [V]	80	80	40	40	200
T_opr [°C]	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 125

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TVS diode (for CAN communication)

Part Number	DF3D18FU	DF3D29FU	DF3D36FU
Toshiba Package Name	SOT-323 (USM)	SOT-323 (USM)	SOT-323 (USM)
V_ESD (Max) [kV]	+/-30	+/-25	+/-20
I_R (Max) [µA]	0.1	0.1	0.1
R_dyn (Typ.) [Ω]	0.8	1.1	1.5
C_T (Typ.) [pF] @ V_R = 0 [V], f = 1 [MHz]	9	9	6.5

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General purpose small signal MOSFET

Part Number	SSM3K7002KF	SSM3J168F	SSM3J66MFV
Toshiba Package Name	SOT-346 (S-Mini)	SOT-346 (S-Mini)	SOT-723 (VESM)
V_DSS (Max) [V]	60	-60	-20
I_D (Max) [A]	0.4	-0.4	-0.8
R_DS(ON) (Max) [Ω] @ \|V_GS\| = 4.5 [V]	1.75	1.9	0.39
Polarity	N-ch	P-ch	P-ch

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General purpose small signal bipolar transistor

Part Number	2SA1832	2SC4738	2SC4116	2SA1586	2SC2712	2SA1162
Toshiba Package Name	SOT-416 (SSM)	SOT-416 (SSM)	SOT-323 (USM)	SOT-323 (USM)	SOT-346 (S-Mini)	SOT-346 (S-Mini)
V_CEO (Max) [V]	-50	50	50	-50	50	-50
I_C (Max) [A]	-0.15	0.15	0.15	-0.15	0.15	-0.15
Polarity	PNP	NPN	NPN	PNP	NPN	PNP

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Small signal bias resistor built-in transistor (BRT)

Part Number	RN1907FE	RN2907FE	RN1901	RN2901
Toshiba Package Name	SOT-563 (ES6)	SOT-563 (ES6)	SOT-363 (US6)	SOT-363 (US6)
V_CEO (Q1) (Max) [V]	50	-50	50	-50
V_CEO (Q2) (Max) [V]	50	-50	50	-50
I_C (Q1) (Max) [A]	0.1	-0.1	0.1	-0.1
I_C (Q2) (Max) [A]	0.1	-0.1	0.1	-0.1
Polarity (Q1)	NPN	PNP	NPN	PNP
Polarity (Q2)	NPN	PNP	NPN	PNP

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Power supply ON/OFF control and reverse connection protection circuit

Example of ON/OFF control and reverse connection protecting circuit using N-ch MOSFET for 12 V power lines

U-MOS Series 40 V / 80 V / 100 V N-ch MOSFET
TVS diode (for CAN communication)
General purpose small signal MOSFET
General purpose small signal bipolar transistor
Small signal bias resistor built-in transistor (BRT)
Gate driver (for switch)

U-MOS Series 40 V / 80 V / 100 V N-ch MOSFET

Part Number	XPQ1R004PB	XPQR3004PB	XPQR8308QB	XPQ1R00AQB
Toshiba Package Name	L-TOGL	L-TOGL	L-TOGL	L-TOGL
V_DSS (Max) [V]	40	40	80	100
I_D (Max) [A]	200	400	350	300
R_DS(ON) (Max) [Ω] @ \|V_GS\| = 10.0 [V]	0.0010	0.00030	0.00083	0.00103
Polarity	N-ch	N-ch	N-ch	N-ch

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TVS diode (for CAN communication)

Part Number	DF3D18FU	DF3D29FU	DF3D36FU
Toshiba Package Name	SOT-323 (USM)	SOT-323 (USM)	SOT-323 (USM)
V_ESD (Max) [kV]	+/-30	+/-25	+/-20
I_R (Max) [µA]	0.1	0.1	0.1
R_dyn (Typ.) [Ω]	0.8	1.1	1.5
C_T (Typ.) [pF] @ V_R = 0 [V], f = 1 [MHz]	9	9	6.5

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General purpose small signal MOSFET

Part Number	SSM3K7002KF	SSM3J168F	SSM3J66MFV
Toshiba Package Name	SOT-346 (S-Mini)	SOT-346 (S-Mini)	SOT-723 (VESM)
V_DSS (Max) [V]	60	-60	-20
I_D (Max) [A]	0.4	-0.4	-0.8
R_DS(ON) (Max) [Ω] @ \|V_GS\| = 4.5 [V]	1.75	1.9	0.39
Polarity	N-ch	P-ch	P-ch

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General purpose small signal bipolar transistor

Part Number	2SA1832	2SC4738	2SC4116	2SA1586	2SC2712	2SA1162
Toshiba Package Name	SOT-416 (SSM)	SOT-416 (SSM)	SOT-323 (USM)	SOT-323 (USM)	SOT-346 (S-Mini)	SOT-346 (S-Mini)
V_CEO (Max) [V]	-50	50	50	-50	50	-50
I_C (Max) [A]	-0.15	0.15	0.15	-0.15	0.15	-0.15
Polarity	PNP	NPN	NPN	PNP	NPN	PNP

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Small signal bias resistor built-in transistor (BRT)

Part Number	RN1907FE	RN2907FE	RN1901	RN2901
Toshiba Package Name	SOT-563 (ES6)	SOT-563 (ES6)	SOT-363 (US6)	SOT-363 (US6)
V_CEO (Q1) (Max) [V]	50	-50	50	-50
V_CEO (Q2) (Max) [V]	50	-50	50	-50
I_C (Q1) (Max) [A]	0.1	-0.1	0.1	-0.1
I_C (Q2) (Max) [A]	0.1	-0.1	0.1	-0.1
Polarity (Q1)	NPN	PNP	NPN	PNP
Polarity (Q2)	NPN	PNP	NPN	PNP

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Overall block diagram

Sub block diagram