The **ADM6346-33ARTZ-R7** is a low-power, precision microprocessor supervisory circuit designed to monitor power supplies and provide a reset signal to processors. It is commonly used to prevent system glitches during power-up, power-down, or brownout conditions. --- ### ## 1. Key Specifications and Features Below are the technical characteristics of the device: | Parameter | Specification | | :--- | :--- | | **Threshold Voltage ($V_{TH}$)** | 3.3V (nominal) | | **Reset Type** | Active-Low, Push-Pull | | **Supply Current** | 0.7 $\mu$A (Typical) | | **Reset Timeout Period** | 100 ms (Minimum) | | **Operating Temperature** | -40°C to +85°C | | **Package Type** | SOT-23 (3-Lead) | | **Mounting Type** | Surface Mount (SMD/SMT) | --- ### ## 2. Core Functional Components The internal circuitry consists of several critical electronic sections: 1. **Precision Voltage Reference:** An internal bandgap reference provides a stable voltage level to compare against the incoming $V_{CC}$. 2. **Comparator:** This part continuously compares the monitored supply voltage to the 3.3V threshold. If the supply falls below this level, the comparator triggers the reset logic. 3. **Delay Generator:** Once the supply voltage rises back above the threshold, the device does not release the reset immediately. It waits for a fixed **Reset Timeout Period** (100ms) to ensure the power supply has stabilized. 4. **Output Driver:** The "ARTZ" variant typically features a **Push-Pull** output, meaning it can drive the reset line high or low without requiring an external pull-up resistor. --- ### ## 3. Application Circuit Example In a standard microcontroller ($MCU$) setup, the connections are straightforward: ```mermaid graph LR VCC(Power Supply 3.3V) --> VCC_PIN[ADM6346 VCC Pin] GND(Ground) --> GND_PIN[ADM6346 GND Pin] OUT_PIN[ADM6346 RESET Pin] --> MCU_RESET[MCU Reset Input] ``` --- ### ## 4. Ordering Information Breakdown The part number **ADM6346-33ARTZ-R7** can be decoded as follows: * **ADM6346**: The base model series. * **33**: Indicates the 3.3V threshold voltage. * **ARTZ**: Refers to the SOT-23 package and RoHS compliance. * **R7**: Indicates the packaging format (7-inch Reel, usually containing 3,000 units).