Overview
The TPS3619-33DGKR is a battery-backup supervisor integrated circuit designed by Texas Instruments for RAM retention and power management in various electronic systems. This device is part of the TPS3619 family and is specifically configured for a nominal supply voltage of 3.3V. It is housed in an 8-pin VSSOP (DGK) package and operates over a temperature range of -40°C to +85°C. The TPS3619-33DGKR is designed to monitor and control processor activity, ensuring reliable operation during power failures or low-battery conditions.
Key Specifications
| Parameter | Min | Typ | 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 |
| Operating Free-Air Temperature Range | -40 | - | 85 | °C |
| High-Level Input Voltage (VIH) | 0.7 x VDD | - | - | V |
| Low-Level Input Voltage (VIL) | 0.3 x VDD | - | - | V |
| Supply Current (IDD) | - | - | 40 | µA |
| Battery-Supply Current | - | - | 100 | nA |
Key Features
- Precision Supply Voltage Monitor for 3.3V and other options on request
- Supply Current of 40 µA (Max) and Battery-Supply Current of 100 nA (Max)
- Backup-Battery Voltage Can Exceed VDD
- Power On Reset Generator With Fixed 100-ms Reset Delay Time
- Voltage Monitor For Power-Fail or Low-Battery Monitoring
- Battery Freshness Seal
- Pin-For-Pin Compatible With MAX819, MAX703, and MAX704
- 8-Pin MSOP Package
Applications
- Fax Machines
- Set-Top Boxes
- Advanced Voice Mail Systems
- Portable Battery-Powered Equipment
- Computer Equipment
- Advanced Modems
- Automotive Systems
- Portable Long-Time Monitoring Equipment
- Point-of-Sale Equipment
Q & A
- What is the primary function of the TPS3619-33DGKR? The primary function is to monitor and control processor activity, ensuring reliable operation during power failures or low-battery conditions.
- What is the nominal supply voltage for the TPS3619-33DGKR? The nominal supply voltage is 3.3V.
- What is the operating temperature range of the TPS3619-33DGKR? The operating temperature range is -40°C to +85°C.
- What is the maximum supply current of the TPS3619-33DGKR? The maximum supply current is 40 µA.
- What is the maximum battery-supply current of the TPS3619-33DGKR? The maximum battery-supply current is 100 nA.
- What type of package does the TPS3619-33DGKR come in? It comes in an 8-pin VSSOP (DGK) package.
- Is the TPS3619-33DGKR pin-for-pin compatible with other devices? Yes, it is pin-for-pin compatible with MAX819, MAX703, and MAX704.
- What is the purpose of the power on reset generator in the TPS3619-33DGKR? The power on reset generator provides a fixed 100-ms reset delay time.
- What are some common applications of the TPS3619-33DGKR? Common applications include fax machines, set-top boxes, advanced voice mail systems, and portable battery-powered equipment.
- How does the TPS3619-33DGKR handle backup-battery voltage? The backup-battery voltage can exceed VDD.
