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Small active-clamp MOSFET for relay drivers: SSM3K357R

Product News 2017-11

The package photograph of small active-clamp MOSFET for relay drivers: SSM3K357R.

“SSM3K357R” is new MOSFET that adopts an active-clamp structure with a built-in diode between the drain and gate terminals. The device is suited to driving inductive loads, such as mechanical relays.
The SSM3K357R protects drivers against damage caused by voltage surges, such as back-EMF caused by inductance. It integrates a pull-down resistor, series resistor and Zener diode, which helps reduce the part count and save on board space.
An industry-standard SOT-23-class package, a low operating voltage of 3.0 V and AEC-Q101 qualification make the SSM3K357R suitable for automotive and many other applications.

Features

  • Active clamp structure suitable for driving an inductive load
  • Low operating voltage of 3.0 V
  • AEC-Q101 qualified

Applications

  • Relay and solenoid control for automotive equipment
  • Relay and solenoid control for industry equipment
  • Clutch control for OA equipment

Product Specifications

(@Ta=25°C)

Part number Package Absolute maximum ratings Drain-source
On-resistance
RDS(ON) typ. (mΩ)
Total
gate
charge
Qg typ.
(nC)
Input
capacitance
Ciss typ.
(pF)
Drain-
source
voltage
VDSS
(V)
Gate-
source
voltage
VGSS
(V)
Drain
current
(DC)
ID
(A)
@VGS=
3.0 V
@VGS=
5.0 V
SSM3K357R SOT-23F 60 ±12 0.65 1200 800 1.5 43

Pin Assignment

The illustration of pin assignment of small active-clamp MOSFET for relay drivers: SSM3K357R.

Application Circuit Example

The illustration of application circuit example of small active-clamp MOSFET for relay drivers: SSM3K357R.

The application circuits shown in this document are provided for reference purposes only. Thorough evaluation is required, especially at the mass-production design stage. Toshiba Electronic Devices & Storage Corporation does not grant any license to any industrial property rights by providing these examples of application circuits.

Information in this document, including product prices and specifications, content of services and contact information, is correct on the date of the announcement but is subject to change without prior notice.

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·Before creating and producing designs and using, customers must also refer to and comply with the latest versions of all relevant TOSHIBA information and the instructions for the application that Product will be used with or for.