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SI4840BDY from VISHAY

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SI4840BDY

Manufacturer: VISHAY

N-Channel 40-V (D-S) MOSFET

Partnumber Manufacturer Quantity Availability
SI4840BDY VISHAY 10000 In Stock

Description and Introduction

N-Channel 40-V (D-S) MOSFET The SI4840BDY is a P-channel MOSFET manufactured by Vishay. Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** Vishay  
- **Type:** P-Channel MOSFET  
- **Drain-Source Voltage (VDSS):** -40V  
- **Gate-Source Voltage (VGS):** ±20V  
- **Continuous Drain Current (ID):** -6.5A (at TC = 25°C)  
- **Pulsed Drain Current (IDM):** -26A  
- **Power Dissipation (PD):** 3.1W (at TA = 25°C)  
- **On-Resistance (RDS(on)):** 85mΩ (max) at VGS = -10V  
- **Threshold Voltage (VGS(th)):** -1V to -3V  
- **Operating Temperature Range:** -55°C to +150°C  
- **Package:** DPAK (TO-252)  

### **Descriptions:**
- The SI4840BDY is a P-channel MOSFET designed for power management applications.  
- It features low on-resistance and high current handling capability.  
- Suitable for switching and amplification in various electronic circuits.  

### **Features:**
- **Low On-Resistance:** Ensures efficient power handling.  
- **High-Speed Switching:** Optimized for fast switching applications.  
- **Avalanche Energy Rated:** Provides robustness in high-energy conditions.  
- **Lead-Free & RoHS Compliant:** Environmentally friendly.  

This information is based on the manufacturer's datasheet for the SI4840BDY.

Application Scenarios & Design Considerations

N-Channel 40-V (D-S) MOSFET
Partnumber Manufacturer Quantity Availability
SI4840BDY SILICONI 47 In Stock

Description and Introduction

N-Channel 40-V (D-S) MOSFET The SI4840BDY is a digital CMOS AM/FM/SW radio receiver IC manufactured by Silicon Labs (SILICONI).  

### **Specifications:**  
- **Frequency Range:**  
  - AM: 520–1710 kHz  
  - FM: 64–108 MHz  
  - SW: 2.3–30 MHz (shortwave)  
- **Supply Voltage:** 2.7–5.5V  
- **Current Consumption:**  
  - AM: ~26 mA  
  - FM: ~23 mA  
- **Interface:** I²C (2-wire serial)  
- **Audio Output:** Stereo (FM), Mono (AM/SW)  
- **Tuning Steps:**  
  - AM: 1/9/10 kHz  
  - FM: 50/100 kHz  
  - SW: 5 kHz  
- **Signal-to-Noise Ratio (SNR):**  
  - FM: ≥ 60 dB  
  - AM: ≥ 50 dB  
- **Package:** 24-pin SSOP  

### **Descriptions and Features:**  
- **Digital Tuning:** Supports AM, FM, and shortwave bands with automatic and manual tuning.  
- **Low Power Consumption:** Suitable for battery-powered portable devices.  
- **Integrated DSP:** Digital signal processing for improved reception and noise reduction.  
- **RDS Support (FM):** Decodes Radio Data System information (if enabled).  
- **Automatic Gain Control (AGC):** Optimizes signal strength for better audio quality.  
- **No External IF Filters Required:** Simplifies design and reduces BOM cost.  
- **Wide Operating Voltage:** Compatible with 3V and 5V systems.  
- **Small Form Factor:** 24-pin SSOP package for compact designs.  

This IC is commonly used in portable radios, car audio systems, and other consumer electronics requiring AM/FM/SW reception.

Application Scenarios & Design Considerations

N-Channel 40-V (D-S) MOSFET

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