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AO4459
+Lista de MateriaisMOSFET P-CH 30V 6.5A 8SOIC
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FabricanteAlpha & Omega Semiconductor Inc.
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Peça do Fabricante #AO4459
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Ficha Técnica AO4459 DataSheet
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Pacote SOIC-8
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Especificações
| Atributo | Valor |
| 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 |
Visão Geral
Description
- Low On-Resistance (RDS(on)): Typically 12mΩ at VGS = -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
- 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
- Voltage Rating: 30V (VDSS)
- Current Rating: 11A (ID)
- Low On-Resistance: 13mΩ (max) at VGS = -10V
- Gate Threshold Voltage: -1V to -2.5V (VGS(th))
- Fast Switching: Low gate charge (Qg) for efficient performance
- Power Dissipation: 2.5W (TA = 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
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 (VDS)
- Low On-Resistance (RDS(on))
- High Current Handling
Used in power switching, load control, and DC-DC conversion.
Application
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.
