MP3401A PDF Datasheet – 30V, 3A, P-Channel MOSFET

This post explains for the MOSFET.

The Part Number is MP3401A.

The function of this semiconductor is -30V, -3A, P-Channel MOSFET.

The package is SOT-23 Type

Manufacturer: Major Power Technology

Preview images :

MP3401A pdf pinout

Description

The MP3401A is -30V, -3A, P-Channel Enhancement Mode MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor).

It features a −30 V drain-source rating, a continuous drain current of −3 A, low on-resistance at gate-source voltages of −10 V, −4.5 V, and −2.5 V, and enhanced ESD cell protection.

Features

1. Drain-source voltage rating of −30 V,

(1) RDS(ON)=46mΩ (typ.) @ VGS=-10V

(2) RDS(ON)=55mΩ (typ.) @ VGS=-4.5V

(3) RDS(ON)=79mΩ (typ.) @ VGS=-2.5V

2. Super High Dense Cell Design

3. Reliable and Rugged

4. Enhance ESD Cell Protection

5. Lead Free and Green Devices Available (RoHS Compliant)

MP3401A datasheet

Absolute Maximum Ratings (Ta = 25°C)

1. Drain to source voltage: VDSS = – 30 V

2. Gate to source voltage: VGSS = ± 10 V

3. Drain current: ID = – 3 A

4. Maximum Power Dissipation: Pd = 0.83 W (Tc = 25°C)

5. Channel temperature: Tch = 150 °C

6. Storage temperature: Tstg = -55 to +150 °C

 

Applications

1. Power Management in LCD TV, Monitor

2. Portable Equipment and Battery Powered Systems

3. Notebook computer power circuits

4. Power control and DC power distribution

MP3401A PDF Datasheet

MP3401A pdf

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LM5045 Datasheet PDF – Full-Bridge PWM Controller

Part Number: LM5045

Function: Full-Bridge PWM Controller with Integrated MOSFET Driver

Package: 28 HTSSOP / 28 WQFN Type

Manufacturer: Texas Instruments

Image

LM5045 datasheet pdf

 

Description

The LM5045 PWM controller contains all of the features necessary to implement Full-Bridge topology power converters using either current mode or voltage mode control. This device is intended to operate on the primary side of an isolated dc-dc converter with input voltage up to 100V.

This highly integrated controller-driver provides dual 2A high and low side gate drivers for the four external brige MOSFETs plus control signals for the secondary side synchronous rectifier MOSFETs. External resistors program the leading and trailing edge dead-time between the main and synchronous rectifier control signals. Intelligent startup of the synchronous rectifiers allows monotonic turn-on of the power converter even with pre-bias load conditions.

Additional features include cycle-by-cycle current limiting, hiccup mode restart, programmable soft-start, synchronous rectifier soft-start and a 2 MHz capable oscillator with synchronization capability and thermal shutdown.

Pinouts

LM5045 datasheet

Features

  • Full-bridge PWM controller for isolated DC-DC converters
  • Supports both current-mode and voltage-mode control
  • Integrated four 2A gate drivers for primary-side MOSFETs
  • Control outputs for secondary-side synchronous rectifiers
  • Wide input operation up to 100V
  • High-frequency operation up to 2 MHz with synchronization capability
  • Programmable soft-start and synchronous rectifier soft-start
  • Cycle-by-cycle current limiting
  • Hiccup mode fault protection for overload conditions
  • Thermal shutdown protection
  • Integrated high-voltage startup regulator

Design Notes

  • Full-bridge topology enables efficient power conversion at higher power levels (>100W typical)
  • Dead-time programming is critical to prevent shoot-through in MOSFETs
  • Synchronous rectification significantly improves efficiency in low-voltage outputs
  • Current-mode control simplifies loop compensation and provides inherent overcurrent protection
  • Transformer design (turns ratio, leakage inductance) is key for efficiency and EMI
  • Layout must minimize high di/dt loop areas (primary switching loop and gate drive loop)
  • Proper snubber or clamp circuits may be required to handle voltage spikes

Typical Applications

  • Isolated DC-DC converters (industrial power supplies)
  • Telecom and server power systems
  • High-density power modules
  • Battery-powered high-power systems
  • Electric vehicle auxiliary power supplies

Advantages

  • High level of integration reduces BOM and design complexity
  • Supports advanced topologies (full-bridge + synchronous rectification)
  • Robust protection features improve system reliability
  • Flexible control (current-mode / voltage-mode)
  • Suitable for high-efficiency, high-density designs

Alternative / Equivalent Products

  • UCC28950 – Phase-shifted full-bridge controller (TI)
  • UC3825 – PWM controller for bridge topologies
  • NCP1397 – ON Semiconductor resonant controller
  • ICE2HS01G – Infineon half/full-bridge controller
  • SG3525 – Classic PWM controller (less integrated)

Other data sheets are available within the file:

LM5045MH, LM5045MH/NOPB, LM5045MHX, LM5045MHX/NOPB

LM5045 Datasheet PDF Download


LM5045 pdf