Automotive DC-DC Converter

Overall block diagram

Automotive DC-DC Converter (isolated type)
Automotive DC-DC Converter (non-isolated buck type)
Automotive DC-DC Converter (non-isolated boost type)

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DC-DC converter circuit

DC-DC converter circuit (isolated type)

Example of isolated full-bridge DC-DC converters

Power supply ON/OFF control and reverse connection protecting circuit

Power supply ON/OFF control and reverse connection protecting circuit (N-ch type 12 V)

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

Power supply ON/OFF control and reverse connection protecting circuit (N-ch type 48 V)

Example of ON/OFF control and reverse connection protecting circuit using N-ch MOSFET for 48 V power lines

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

DC-DC converter circuit (non-isolated buck type)

Example of non-isolated step-down DC-DC converters

Power supply ON/OFF control and reverse connection protecting circuit

Power supply ON/OFF control and reverse connection protecting circuit (N-ch type 12 V)

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

Power supply ON/OFF control and reverse connection protecting circuit (N-ch type 48 V)

Example of ON/OFF control and reverse connection protecting circuit using N-ch MOSFET for 48 V power lines

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

DC-DC converter circuit (non-isolated boost type)

Example of non-isolated boost DC-DC converters

Power supply ON/OFF control and reverse connection protecting circuit

Power supply ON/OFF control and reverse connection protecting circuit (N-ch type 12 V)

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

Power supply ON/OFF control and reverse connection protecting circuit (N-ch type 48 V)

Example of ON/OFF control and reverse connection protecting circuit using N-ch MOSFET for 48 V power lines

Sub block diagram

DC-DC converter circuit

DC-DC converter circuit (isolated type)

Example of isolated full-bridge DC-DC converters

U-MOS Series 100V N-ch MOSFET(1)
U-MOS Series 100V N-ch MOSFET(2)
Transistor output photocoupler
TVS diode (for CAN communication)

U-MOS Series 100V N-ch MOSFET(1)

Part Number	XPN1300ANC	TK60S10N1L	XPH4R10ANB	XPH6R30ANB
Toshiba Package Name	TSON Advance(WF)	DPAK+	SOP Advance(WF)	SOP Advance(WF)
V_DSS (Max) [V]	100	100	100	100
I_D (Max) [A]	30	60	70	45
R_DS(ON) (Max) [Ω] @ \|V_GS\| = 10.0 [V]	0.0133	0.00611	0.0041	0.0063
Polarity	N-ch	N-ch	N-ch	N-ch

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U-MOS Series 100V N-ch MOSFET(2)

Part Number	XPW4R10ANB	XPW6R30ANB	XPQ1R00AQB
Toshiba Package Name	DSOP Advance(WF)L	DSOP Advance(WF)M	L-TOGL
V_DSS (Max) [V]	100	100	100
I_D (Max) [A]	70	45	300
R_DS(ON) (Max) [Ω] @ \|V_GS\| = 10.0 [V]	0.0041	0.0063	0.00103
Polarity	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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Power supply ON/OFF control and reverse connection protecting circuit

Power supply ON/OFF control and reverse connection protecting circuit (N-ch type 12 V)

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

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

U-MOS Series 40 V N-ch MOSFET

Part Number	XPN3R804NC	TK1R4S04PB	XPHR7904PS	TPWR7904PB	XPJR6604PB	XPQR3004PB
Toshiba Package Name	TSON Advance(WF)	DPAK+	SOP Advance(WF)	DSOP Advance(WF)L	S-TOGL	L-TOGL
V_DSS (Max) [V]	40	40	40	40	40	40
I_D (Max) [A]	40	120	150	150	200	400
R_DS(ON) (Max) [Ω] @ \|V_GS\| = 10.0 [V]	0.0038	0.00135	0.00079	0.00079	0.00066	0.00030
Polarity	N-ch	N-ch	N-ch	N-ch	N-ch	N-ch

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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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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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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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Power supply ON/OFF control and reverse connection protecting circuit (N-ch type 48 V)

Example of ON/OFF control and reverse connection protecting circuit using N-ch MOSFET for 48 V power lines

U-MOS Series 100V N-ch MOSFET(1)
U-MOS Series 100V N-ch MOSFET(2)
General purpose small signal MOSFET
General purpose small signal bipolar transistor
Small signal bias resistor built-in transistor (BRT)
TVS diode (for CAN communication)

U-MOS Series 100V N-ch MOSFET(1)

Part Number	XPN1300ANC	TK60S10N1L	XPH4R10ANB	XPH6R30ANB
Toshiba Package Name	TSON Advance(WF)	DPAK+	SOP Advance(WF)	SOP Advance(WF)
V_DSS (Max) [V]	100	100	100	100
I_D (Max) [A]	30	60	70	45
R_DS(ON) (Max) [Ω] @ \|V_GS\| = 10.0 [V]	0.0133	0.00611	0.0041	0.0063
Polarity	N-ch	N-ch	N-ch	N-ch

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U-MOS Series 100V N-ch MOSFET(2)

Part Number	XPW4R10ANB	XPW6R30ANB	XPQ1R00AQB
Toshiba Package Name	DSOP Advance(WF)L	DSOP Advance(WF)M	L-TOGL
V_DSS (Max) [V]	100	100	100
I_D (Max) [A]	70	45	300
R_DS(ON) (Max) [Ω] @ \|V_GS\| = 10.0 [V]	0.0041	0.0063	0.00103
Polarity	N-ch	N-ch	N-ch

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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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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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DC-DC converter circuit (non-isolated buck type)

Example of non-isolated step-down DC-DC converters

U-MOS Series 100V N-ch MOSFET(1)
U-MOS Series 100V N-ch MOSFET(2)
U-MOS Series 60 V N-ch MOSFET
U-MOS Series 40 V N-ch MOSFET

U-MOS Series 100V N-ch MOSFET(1)

Part Number	XPN1300ANC	TK60S10N1L	XPH4R10ANB	XPH6R30ANB
Toshiba Package Name	TSON Advance(WF)	DPAK+	SOP Advance(WF)	SOP Advance(WF)
V_DSS (Max) [V]	100	100	100	100
I_D (Max) [A]	30	60	70	45
R_DS(ON) (Max) [Ω] @ \|V_GS\| = 10.0 [V]	0.0133	0.00611	0.0041	0.0063
Polarity	N-ch	N-ch	N-ch	N-ch

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U-MOS Series 100V N-ch MOSFET(2)

Part Number	XPW4R10ANB	XPW6R30ANB	XPQ1R00AQB
Toshiba Package Name	DSOP Advance(WF)L	DSOP Advance(WF)M	L-TOGL
V_DSS (Max) [V]	100	100	100
I_D (Max) [A]	70	45	300
R_DS(ON) (Max) [Ω] @ \|V_GS\| = 10.0 [V]	0.0041	0.0063	0.00103
Polarity	N-ch	N-ch	N-ch

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U-MOS Series 60 V N-ch MOSFET

Part Number	XPN12006NC	XPN6R706NC	XPH3R206NC	XPH2R106NC	TK90S06N1L
Toshiba Package Name	TSON Advance(WF)	TSON Advance(WF)	SOP Advance(WF)	SOP Advance(WF)	DPAK+
V_DSS (Max) [V]	60	60	60	60	60
I_D (Max) [A]	20	40	70	110	90
R_DS(ON) (Max) [Ω] @ \|V_GS\| = 10.0 [V]	0.0120	0.0067	0.0032	0.0021	0.0033
Polarity	N-ch	N-ch	N-ch	N-ch	N-ch

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U-MOS Series 40 V N-ch MOSFET

Part Number	XPN3R804NC	TK1R4S04PB	XPHR7904PS	TPWR7904PB	XPJR6604PB	XPQR3004PB
Toshiba Package Name	TSON Advance(WF)	DPAK+	SOP Advance(WF)	DSOP Advance(WF)L	S-TOGL	L-TOGL
V_DSS (Max) [V]	40	40	40	40	40	40
I_D (Max) [A]	40	120	150	150	200	400
R_DS(ON) (Max) [Ω] @ \|V_GS\| = 10.0 [V]	0.0038	0.00135	0.00079	0.00079	0.00066	0.00030
Polarity	N-ch	N-ch	N-ch	N-ch	N-ch	N-ch

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Power supply ON/OFF control and reverse connection protecting circuit

Power supply ON/OFF control and reverse connection protecting circuit (N-ch type 12 V)

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

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

U-MOS Series 40 V N-ch MOSFET

Part Number	XPN3R804NC	TK1R4S04PB	XPHR7904PS	TPWR7904PB	XPJR6604PB	XPQR3004PB
Toshiba Package Name	TSON Advance(WF)	DPAK+	SOP Advance(WF)	DSOP Advance(WF)L	S-TOGL	L-TOGL
V_DSS (Max) [V]	40	40	40	40	40	40
I_D (Max) [A]	40	120	150	150	200	400
R_DS(ON) (Max) [Ω] @ \|V_GS\| = 10.0 [V]	0.0038	0.00135	0.00079	0.00079	0.00066	0.00030
Polarity	N-ch	N-ch	N-ch	N-ch	N-ch	N-ch

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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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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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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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Power supply ON/OFF control and reverse connection protecting circuit (N-ch type 48 V)

Example of ON/OFF control and reverse connection protecting circuit using N-ch MOSFET for 48 V power lines

U-MOS Series 100V N-ch MOSFET(1)
U-MOS Series 100V N-ch MOSFET(2)
General purpose small signal MOSFET
General purpose small signal bipolar transistor
Small signal bias resistor built-in transistor (BRT)
TVS diode (for CAN communication)

U-MOS Series 100V N-ch MOSFET(1)

Part Number	XPN1300ANC	TK60S10N1L	XPH4R10ANB	XPH6R30ANB
Toshiba Package Name	TSON Advance(WF)	DPAK+	SOP Advance(WF)	SOP Advance(WF)
V_DSS (Max) [V]	100	100	100	100
I_D (Max) [A]	30	60	70	45
R_DS(ON) (Max) [Ω] @ \|V_GS\| = 10.0 [V]	0.0133	0.00611	0.0041	0.0063
Polarity	N-ch	N-ch	N-ch	N-ch

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U-MOS Series 100V N-ch MOSFET(2)

Part Number	XPW4R10ANB	XPW6R30ANB	XPQ1R00AQB
Toshiba Package Name	DSOP Advance(WF)L	DSOP Advance(WF)M	L-TOGL
V_DSS (Max) [V]	100	100	100
I_D (Max) [A]	70	45	300
R_DS(ON) (Max) [Ω] @ \|V_GS\| = 10.0 [V]	0.0041	0.0063	0.00103
Polarity	N-ch	N-ch	N-ch

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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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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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DC-DC converter circuit (non-isolated boost type)

Example of non-isolated boost DC-DC converters

U-MOS Series 100V N-ch MOSFET(1)
U-MOS Series 100V N-ch MOSFET(2)
U-MOS Series 60 V N-ch MOSFET
U-MOS Series 40 V N-ch MOSFET

U-MOS Series 100V N-ch MOSFET(1)

Part Number	XPN1300ANC

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Overall block diagram

Sub block diagram