33 The TPS3619-50DGKR is a power supply supervisor IC manufactured by Texas Instruments (TI). Below are its specifications, descriptions, and features:
### **Specifications:**
- **Manufacturer:** Texas Instruments (TI)
- **Part Number:** TPS3619-50DGKR
- **Package:** VSSOP-8 (DGK)
- **Type:** Voltage Supervisor/Monitor
- **Threshold Voltage:** 4.55V (for TPS3619-50 variant)
- **Supply Voltage Range:** 1.8V to 10V
- **Reset Threshold Accuracy:** ±1.5%
- **Reset Timeout Period:** Adjustable (via external capacitor) or fixed (200ms typical)
- **Operating Temperature Range:** -40°C to +125°C
- **Quiescent Current:** 6µA (typical)
### **Descriptions:**
The TPS3619-50DGKR is a low-power voltage supervisor designed to monitor system voltages and provide a reset signal to microprocessors or other logic circuits when the voltage falls below a preset threshold. It ensures proper system initialization and prevents erratic operation during power-up, power-down, or brownout conditions.
### **Features:**
- **Precision Voltage Monitoring:** Accurate monitoring with ±1.5% threshold accuracy.
- **Low Power Consumption:** Only 6µA typical quiescent current.
- **Adjustable or Fixed Reset Delay:** Supports external capacitor for adjustable delay or fixed 200ms timeout.
- **Wide Operating Voltage Range:** Works from 1.8V to 10V.
- **Manual Reset Input:** Allows external push-button reset control.
- **Power-On Reset (POR) Generation:** Ensures proper system startup.
- **Small Package:** Available in an 8-pin VSSOP (DGK) package for space-constrained applications.
This IC is commonly used in industrial, automotive, and consumer electronics where reliable voltage monitoring is critical.
