The **UD4614L-S08-R** is a specialized power semiconductor device, specifically a **Dual Complementary MOSFET**. It combines one N-Channel MOSFET and one P-Channel MOSFET into a single small-outline package. --- ### 1. Key Technical Specifications The device is designed for efficiency and space-saving in power management circuits. | Parameter | N-Channel (Typical) | P-Channel (Typical) | | :--- | :--- | :--- | | **Drain-Source Voltage ($V_{DSS}$)** | 40V | -40V | | **Continuous Drain Current ($I_D$)** | 6A | -5.1A | | **Static Drain-Source On-Resistance ($R_{DS(ON)}$)** | ~28mΩ @ 10V | ~45mΩ @ -10V | | **Gate-Source Voltage ($V_{GS}$)** | ±20V | ±20V | | **Package Type** | SOP-8 | SOP-8 | --- ### 2. Part Number Breakdown Understanding the suffix codes is essential for sourcing: * **UD4614**: The base model series. * **L**: Represents "Lead-Free" or "Halogen-Free" (Green product). * **S08**: Indicates the **SOP-8** (Small Outline Package with 8 pins). * **R**: Refers to **Tape & Reel** packaging for automated assembly. --- ### 3. Pin Configuration (SOP-8) In a dual MOSFET configuration like the UD4614L, the pins are typically assigned as follows: | Pin Number | Function | Description | | :--- | :--- | :--- | | 1 | **S1** | Source (N-Channel) | | 2 | **G1** | Gate (N-Channel) | | 3 | **S2** | Source (P-Channel) | | 4 | **G2** | Gate (P-Channel) | | 5 & 6 | **D2** | Drain (P-Channel) | | 7 & 8 | **D1** | Drain (N-Channel) | --- ### 4. Common Applications Because it contains both N and P channels, it is ideal for circuits that require polarity switching or bridge configurations: 1. **H-Bridge Motor Drivers:** Used to control the direction of small DC motors. 2. **LCD Backlight Inverters:** Efficiently switching the power for display panels. 3. **DC-DC Converters:** Acts as a synchronous rectifier or power switch. 4. **Load Switching:** Managing power rails in battery-operated devices. --- ### 5. Circuit Symbol Example ```text P-Channel N-Channel (Pin 5,6) D2 (Pin 7,8) D1 | | G2 --|<-- S2 G1 --|>-- S1 (Pin 4) (Pin 3) (Pin 2) (Pin 1) ```