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AO4459

Name: AO4459
Rating: 4.8 (15 reviews)

+物料清單

MOSFET P-CH 30V 6.5A 8SOIC

製造商阿爾法歐米茄電晶體股份有限公司。
製造商部分 #AO4459
數據表 AO4459 DataSheet
包裹 SOIC-8
有存貨6316

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正品保證

規格

屬性	價值
Package	Tape & Reel (TR),Cut Tape (CT)
ProductStatus	Not For New Designs
FETType	P-Channel
Technology	MOSFET (Metal Oxide)
DraintoSourceVoltage(Vdss)	30 V
Current-ContinuousDrain(Id)@25°C	6.5A (Ta)
DriveVoltage(MaxRdsOnMinRdsOn)	4.5V, 10V
RdsOn(Max)@IdVgs	46mOhm @ 6.5A, 10V
Vgs(th)(Max)@Id	2.5V @ 250µA
GateCharge(Qg)(Max)@Vgs	16 nC @ 10 V
Vgs(Max)	±20V
InputCapacitance(Ciss)(Max)@Vds	830 pF @ 15 V
PowerDissipation(Max)	3.1W (Ta)
OperatingTemperature	-55°C ~ 150°C (TJ)
MountingType	Surface Mount
SupplierDevicePackage	8-SOIC

概述

Description

The AO4459 is a P-channel MOSFET (metal-oxide-semiconductor field-effect transistor) designed for power management applications. Key features include:
- Low On-Resistance (R_DS(on)): Typically 12mΩ at V_GS = -4.5V, reducing power loss.
- High Current Handling: Supports up to -11A continuous drain current.
- Low Gate Drive Voltage: Operates at -2.5V to -12V, making it suitable for low-voltage systems.
- Fast Switching: Optimized for efficiency in DC-DC converters, load switches, and battery protection circuits.
Common uses include power distribution in portable devices, motor control, and power supply modules. Its compact package (e.g., SOIC-8) aids space-constrained designs. Always refer to the datasheet for detailed specifications.

Equivalent

Equivalent products to the AO4459 MOSFET chip include:
- SI4459DY (Vishay)
- IRLML6402TRPBF (Infineon)
- DMG2305UX (Diodes Inc.)
- FDS6680A (ON Semiconductor)
These are P-channel MOSFETs with similar specifications (e.g., -30V, -12A, low RDS(on)). Verify exact parameters for compatibility.

Features

The AO4459 is a P-channel MOSFET with the following key features:
- Voltage Rating: 30V (V_DSS)
- Current Rating: 11A (I_D)
- Low On-Resistance: 13mΩ (max) at V_GS = -10V
- Gate Threshold Voltage: -1V to -2.5V (V_GS(th))
- Fast Switching: Low gate charge (Q_g) for efficient performance
- Power Dissipation: 2.5W (T_A = 25°C)
- Package: SOIC-8 (compact surface-mount design)
- Applications: Power management, load switching, DC-DC converters, and battery protection.
It offers high efficiency and reliability for low-voltage applications.

Pinout

The AO4459 is an N-channel MOSFET with 8 pins in a SOIC-8 package.
Pin Functions:
1. Pins 1, 2, 3 (Drain 1, Drain 2, Drain 3): Connected to the drain terminal.
2. Pin 4 (Gate): Controls the MOSFET switching.
3. Pins 5, 6, 7, 8 (Source 1-4): Connected to the source terminal.
Key Features:
- 30V Drain-Source Voltage (V_DS)
- Low On-Resistance (R_DS(on))
- High Current Handling
Used in power switching, load control, and DC-DC conversion.

Application

The AO4459 is a P-channel MOSFET commonly used in:
1. Power Management – Switching regulators, load switches.
2. Battery Protection – Reverse polarity and overcurrent protection.
3. DC-DC Converters – Step-down/step-up voltage conversion.
4. Motor Control – Low-side switching in small motors.
5. Portable Devices – Power distribution in smartphones, tablets.
6. LED Drivers – Efficient current control for lighting.
Its low on-resistance (RDS(on)) and compact package (SO-8) make it ideal for space-constrained, high-efficiency applications.

Package

The AO4459 is a P-channel MOSFET typically available in a SO-8 (SOP-8) surface-mount package. This compact package is widely used for power management applications, offering good thermal and electrical performance. The SO-8 is standardized with 8 pins and is suitable for automated PCB assembly.