The SGM802-1.63YC4G/TR is a voltage detector manufactured by SG Micro Corp. It monitors a specific voltage level (1.63V) and asserts an output when the voltage falls below this threshold. This makes it useful for applications requiring undervoltage detection, such as power-on reset circuits, battery monitoring, and voltage supervision.

Applications

• Power-On Reset (POR) Circuits: Generating a reset signal for microcontrollers during power-up to ensure proper initialization.
• Battery Monitoring: Detecting low battery conditions in portable devices and triggering alerts or shutdown procedures.
• Undervoltage Lockout (UVLO): Protecting sensitive circuits from operating at insufficient voltage levels.
• Voltage Supervision: Monitoring power supply rails and detecting deviations from the expected voltage range.
• Brown-Out Detection: Detecting brown-out conditions in power systems and initiating corrective actions.

Features

• Precision Voltage Detection: Accurately monitors the input voltage and compares it to a predefined threshold.
• Low Quiescent Current: Draws minimal current during normal operation, extending battery life in portable applications.
• Push-Pull Output: Provides a strong output drive capability for directly interfacing with digital circuits.
• Small Package: Offered in a compact YC4G package, minimizing board space requirements.
• Fixed Threshold Voltage: Preset to detect voltage levels at 1.63V.
• Wide Operating Temperature Range: Operates reliably over a broad temperature range, typically -40°C to +85°C.

Benefits

• Enhanced System Reliability: Protects against undervoltage conditions, preventing malfunctions and data corruption.
• Prolonged Battery Life: Low quiescent current extends the operating time of battery-powered devices.
• Simplified Circuit Design: Integrates voltage detection functionality into a single, compact component.
• Reduced Board Space: Small package enables high-density circuit layouts.
• Direct Interfacing: Push-pull output facilitates easy connection to digital circuits without the need for external components.

Additional Details

The SGM802-1.63YC4G/TR integrates a precise voltage reference and comparator to achieve accurate voltage detection. The push-pull output provides both a high and low output state, eliminating the need for an external pull-up resistor. The device is designed to be highly immune to noise and voltage transients. Consult the datasheet for detailed specifications, including propagation delays, threshold accuracy, and power consumption characteristics. It is packaged in tape and reel format for automated assembly processes. Proper decoupling capacitors should be used to ensure stable operation.