Overview
The TPS3619-33DGKRG4 is a backup-battery supervisor integrated circuit from Texas Instruments, designed to monitor and control processor activity in various electronic systems. This device is part of the TPS3619 and TPS3620 families, which are known for their precision supply voltage monitoring and low power consumption. The TPS3619-33DGKRG4 is specifically configured for a nominal supply voltage of 3.3V and is packaged in an 8-pin MSOP (Very Thin Small Outline Package) format. It operates over a temperature range of –40°C to +85°C, making it suitable for a wide range of applications.
Key Specifications
| Parameter | Min | Max | Unit | |
|---|---|---|---|---|
| Supply Voltage (VDD) | 1.65 | 5.5 | V | |
| Battery Supply Voltage (VBAT) | 1.5 | 5.5 | V | |
| Continuous Output Current at VOUT | 300 | mA | ||
| High-Level Output Voltage at RESET | VDD - 0.4 | V | ||
| Low-Level Output Voltage at RESET | 0.4 | V | ||
| Operating Free-Air Temperature Range | –40 | +85 | °C | |
| Supply Current | 40 | µA | ||
| Battery-Supply Current | 100 | nA |
Key Features
- Precision Supply Voltage Monitoring: The TPS3619-33DGKRG4 monitors the supply voltage with precision thresholds of 3.3V and 5V, ensuring reliable operation of the system.
- Low Power Consumption: The device has a supply current of up to 40 µA and a battery-supply current of up to 100 nA, making it energy-efficient.
- Manual Reset and Power-Fail Input: Features manual reset (MR) and power-fail input (PFI) pins for additional control over system reset and power management.
- High-Level Output Voltage: Provides high-level output voltage at the RESET and PFO pins, ensuring clear signal transmission.
- Wide Operating Temperature Range: Operates over a temperature range of –40°C to +85°C, making it suitable for various environmental conditions.
Applications
- Computer Equipment: Used in desktops, laptops, and other computer systems for reliable power management.
- Portable Battery-Powered Equipment: Suitable for devices like handheld instruments, portable medical devices, and consumer electronics.
- Automotive Systems: Applied in automotive electronics for robust and reliable operation.
- Advanced Modems and Set-Top Boxes: Used in communication and entertainment systems to ensure stable power supply.
- Point-of-Sale Equipment and Fax Machines: Employed in commercial and office equipment for reliable operation.
Q & A
- What is the nominal supply voltage of the TPS3619-33DGKRG4?
The nominal supply voltage is 3.3V.
- What is the maximum supply current of the TPS3619-33DGKRG4?
The maximum supply current is 40 µA.
- What is the battery-supply current of the TPS3619-33DGKRG4?
The battery-supply current is up to 100 nA.
- What is the operating temperature range of the TPS3619-33DGKRG4?
The operating temperature range is –40°C to +85°C.
- What are the key features of the manual reset (MR) and power-fail input (PFI) pins?
The MR pin allows for manual system reset, while the PFI pin provides an input for power-fail detection.
- What are some common applications of the TPS3619-33DGKRG4?
Common applications include computer equipment, portable battery-powered devices, automotive systems, advanced modems, set-top boxes, and point-of-sale equipment.
- What is the package type of the TPS3619-33DGKRG4?
The device is packaged in an 8-pin MSOP (Very Thin Small Outline Package).
- How does the TPS3619-33DGKRG4 handle power switchover between VDD and VBAT?
The device automatically switches to VBAT when VDD falls below a certain threshold, ensuring continuous operation.
- What are the high-level output voltage specifications for the RESET and PFO pins?
The high-level output voltage at RESET and PFO is typically VDD - 0.4V.
- Is the TPS3619-33DGKRG4 RoHS compliant?
Yes, the device is RoHS compliant.
