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4407A Datasheet – 30V, P-Ch, MOSFET, Transistor, AO4407A

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This is a kind of MOSFET.

Part Number: 4407A, AO4407A

Function: 30V, 12A, P-Channel MOSFET

Package: SOIC-8 Type

Manufacturer: Alpha and Omega Semiconductor

Image :
4407A datasheet

Description

The 4407A uses advanced trench technology to provide excellent R DS(ON) , and ultra-low low gate charge with a 25V gate rating. This device is suitable foruse as a load switch or in PWM applications.

The AO4407A is a P-channel power MOSFET in an 8-pin SOIC package, optimized for high-efficiency load switching and DC-DC conversion. It uses advanced trench MOSFET technology to achieve very low RDS(ON) and low gate charge, making it highly suitable for battery-powered and power management applications.

Pinout

4407A pinout

Product Summary (Ta = 25°C)

1. Drain-Source Voltage : VDS = -30V

2. Continuous Drain Current : ID = -12A (VGS = -20V)

3. RDS(ON) < 11mΩ (VGS = -20V)

4. RDS(ON) < 13mΩ (VGS = -10V)

5. RDS(ON) < 17mΩ (VGS = -6V)

6. Power Dissipation: Pd = 3.1 W

7. Junction Temperature: Tj = 150°C

8. Storage Temperature: Tsg = -55 ~ +150°C

Design Notes (Critical Points)

  • Ensure sufficient negative VGS for full enhancement
  • Use gate resistor to control switching speed and ringing
  • Provide adequate PCB copper for thermal dissipation
  • Check SOA (Safe Operating Area) for high current pulses
  • Consider paralleling devices for higher current applications

Typical Applications

  • High-side load switch
  • Battery protection circuits
  • DC-DC buck/boost converters (as high-side switch)
  • Power path control (adapter ↔ battery selection)
  • Hot-swap and power OR-ing circuits

Alternative / Equivalent Products

  • IRF7416 (P-channel MOSFET)
  • Si4435DY
  • FDN306P (lower current applications)
  • AO4409 (higher performance variant)

Other data sheets are available within the file: AO4407A

4407A Datasheet PDF Download

4407A pdf

TDA7297 Datasheet PDF – 15+15W Dual Bridge Amplifier

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Part Number: TDA7297

Function: 15+15W DUAL BRIDGE AMPLIFIER

Package: Multiwatt 15 Type

Manufacturer: ST Microelectronics

Image

tda7297-dual-bridge-amplifier

Description

The TDA7297 is a Class-AB dual-bridge audio amplifier IC designed for compact audio applications such as televisions, portable radios, DIY speaker systems, and more.

As a Class-AB device, you’re looking at moderate efficiency but strong audio quality for small-scale applications.Sufficient heatsinking needed, especially under higher loads or extended use.

 

Key Specifications

  • Output Power: Delivers up to 15 W per channel into an 8 Ω load (30 W total

  • Supply Voltage Range: Operates from 6 V to 18 V (6.5 V to 18 V on some platforms)

  • Fixed Gain: Internally set gain of approximately 32 dB 
  • Protection Features: Includes stand-by/mute control, short-circuit protection, and thermal overload protection

 

Pinout

tda7297-datasheet-pinout

OUT1+, OUT1− Channel 1 speaker outputs (bridge configuration)

IN1 Channel 1 audio input

OUT2+, OUT2− Channel 2 speaker outputs

IN2 Channel 2 audio input

VCC (pins 3 & 13) Power supply input

MUTE Mute control pin

STANDBY Stand-by mode control pin

PW-GND, S-GND Power and signal grounds respectively

N.C. No-connect pins

 

Features

1. WIDE SUPPLY VOLTAGE RANGE (6V -18V)

2. MINIMUM EXTERNAL COMPONENTS

(1) NO SVR CAPACITOR
(2) NO BOOTSTRAP
(3) NO BOUCHEROT CELLS
(4) INTERNALLY FIXED GAIN

3. STAND-BY & MUTE FUNCTIONS

4. SHORT CIRCUIT PROTECTION

5. THERMAL OVERLOAD PROTECTION

 

Absolute Maximum Ratings

1. Supply Voltage : VS = 20 V

2. Output Peak Current (internally limited) : IO = 2 A

3. Total Power Dissipation (Tcase = 70°C) : Ptot = 33 W

 

Block Diagram

tda7297-application-circuit

 

Power Output Performance

1. At 16.5 V supply: ~15 W + 15 W at 10% THD; ~12 W + 12 W at 1% THD

2. At 12 V supply: ~8 W + 8 W at 10% THD; ~6 W + 6 W at 1% THD

 

 

Official Homepage: https://www.st.com/en/audio-ics/tda7297.html

 

TDA7297 Datasheet

TDA7297 pdf