TDA4918A Datasheet – DIP 20, SMPS, Bipolar IC

Part Number: TDA4918A, Q67000-A8021

Function:  SMPS – IC with SIPMOS Driver Output

Package: P-DIP 20 Pin Type

Manufacturer: Simenes


TDA4918A datasheet smps


The versatile switch-mode power supply ICs for the direct control of SIPMOS power transistors comprise digital and analog functions. These functions are required for the design of high-quality flyback and forward converters during single-phare and push-pull operation in normal, half-bridge and full-bridge configurations.

A versatile switch-mode power supply (SMPS) IC refers to an integrated circuit that provides the functionality and features required for creating efficient and flexible power supply solutions. These ICs are designed to regulate and convert electrical power efficiently, typically from a higher voltage source to a lower voltage output.

Versatile SMPS ICs are commonly used in a wide range of applications, including consumer electronics, industrial equipment, telecommunications, automotive electronics, and more.


TDA4918A pinout siemens



1. Switching frequency up to 300 kHz ( TDA 4919 ) or 150 kHz ( TDA 4918 )
2. Push-pull output driver with + 700 mA / – 500 mA
3. Separate GND for the driver outputs
4. Feed-forward control
5. Soft start
6. Hysteresis adjustable at overvoltage and undervoltage comparator
7. Current mode and voltage mode operation are possible

TDA4918A Datasheet


Related articles across the web

B31N20D PDF – IRFB31N20D – 200V, 31A, SMPS MOSFET

Part Number: B31N20D, IRFB31N20D, IRFS31N20D, IRFSL31N20D

Function: 200V, 31A, SMPS MOSFET

Package: TO-220AB, D2Pak, TO-262 Type

Manufacturer: International Rectifier

Preview :

B31N20D pinout datasheet


B31N20D is 200V, 31A, SMPS MOSFET.

A SMPS (Switched-Mode Power Supply) MOSFET refers to a metal-oxide-semiconductor field-effect transistor designed for use in switched-mode power supply applications. Let’s break down the specifications:

  1. Voltage Rating: The MOSFET has a maximum voltage rating of 200 volts (V). This means it can handle a maximum voltage of 200V in its operating conditions without the risk of damage.
  2. Current Rating: The MOSFET has a maximum current rating of 31 amperes (A). This specifies the maximum continuous current that can flow through the transistor without exceeding its current handling capacity.

SMPS MOSFETs are specifically designed to handle high voltages and high currents typically encountered in switched-mode power supply circuits. Switched-mode power supplies are widely used in various applications, including computers, telecommunications equipment, consumer electronics, and industrial systems.




1. Low Gate-to-Drain Charge to Reduce Switching Losses

2. Fully Characterized Capacitance Including Effective COSS to Simplify Design

3. Fully Characterized Avalanche Voltage and Current


B31N20D pdf mosfet

Absolute Maximum Ratings (Ta = 25°C)

1. Drain to source Voltage: VDSS = 200 V

2. Gate to source Voltage: VGSS = ± 30 V

3. Drain current: ID = 31 A

4. Drain Power Dissipation: Pd = 3.1 W

5. Channel temperature: Tch = 175 °C

6. Storage temperature: Tstg = -55 to +175 °C


1. High frequency DC-DC converters

B31N20D PDF Datasheet