Power supply control circuit

Example of mechanical relay drive circuit for engine control

Mechanical relay system

Lineup

MOSFET with a built-in active clamp circuit

Part number

SSM3K347R

SSM3K337R

Package

SOT-23F

SOT-23F

VDS(DC) [V]

38

38

ID [A]

2

2

RDS(ON) [mΩ]

@VGS = 4.0 V

Typ.

350

161

Max

480

200

Polarity

N-ch

N-ch

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

Function

Low side switch

High side switch

Part number

TPD1044F

TPD1054F

TPD1052F

Package

PS-8
(2.8 x 2.9 mm)

Features

  • Overcurrent/overheat protection
  • Active clamp
  • On-resistance: 0.6 Ω
  • Overcurrent/overheat protection
  • Active clamp
  • Diagnostic output function
  • On-resistance: 0.8 Ω
  • Overcurrent/overheat protection
  • Diagnostic output function
  • On-resistance: 0.8 Ω

General purpose small signal MOSFET

Part number SSM3K7002KF SSM3J168F SSM3J66MFV
Package S-Mini (SOT-346) S-Mini (SOT-346) VESM (SOT-723)
VDSS [V]  60 -60 -20
I(A)  0.4 -0.4 -0.8

RDS(ON) @|VGS| = 4.5 V [Ω]

Typ. 1.2 1.4 0.31
Max 1.75 1.9 0.39
Drive voltage [V] 4.5 -4.0 -1.2
Polarity N-ch P-ch P-ch

General purpose small signal bipolar transistor

Package

SOT-23F

USM (SOT-323)

UFM (SOT-323F)*

S-Mini (SOT-346)

Classification

|VCEO| [V]

|IC| [mA]

NPN

PNP

NPN

PNP

NPN

PNP

General purpose

50

150

 

 

2SC4116

2SA1586

2SC2712

2SA1162

50

500

       

2SC3325

2SA1313

Low noise

120

100

   

2SC4117

2SA1587

2SC2713

2SA1163

High current

50

1700

     

2SA2195*

   
50 2000   TTA501        
50 2500 TTC501          

* : indicates UFM package

General purpose small signal bias resistor built-in transistor (BRT)

Part number

NPN (BRT)

PNP (BRT)

Package

ES6 (SOT-563)

RN1907FE

RN2907FE

US6 (SOT-363)

RN1901

RN2901

VCEO [V]

50

-50

IC [mA]

100

-100

TVS diode (for CAN communication)

Part number DF3D18FU DF3D29FU DF3D36FU
Package

USM (SOT-323)

VESD [kV] @ISO 10605 ±30 ±30 ±20
VRWM (Max) [V] 12 24 28

Ct (Typ./Max) [pF]

9 / 10 6.5 / 8
RDYN (Typ.) [Ω] 0.8 1.1 1.5

Contacts

Technical inquiry

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Frequently Asked Questions

FAQs
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