Overview
The TPS3103K33DBVTG4 is a member of the TPS310x and TPS311x families of supervisory circuits produced by Texas Instruments. These circuits are designed to provide circuit initialization and timing supervision, primarily for DSP and processor-based systems. The TPS3103K33DBVTG4 is particularly suited for applications requiring precise supply voltage supervision and low power consumption.
During power-on, the RESET output is asserted low when the supply voltage (VDD) exceeds 0.4 V. The supervisory circuit then monitors VDD and maintains the RESET output low until VDD surpasses the predefined threshold voltage. An internal timer ensures a delay of 130 ms before the RESET signal transitions from low to high, ensuring proper system reset.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package Type | SOT-23 (DBV) | |
| Pins | 6 | |
| Operating Temperature Range | -40 to 85 | °C |
| Monitored Voltage Range | 0.9 V, 1.2 V, 1.5 V, 1.6 V, 2 V, 3.3 V | V |
| Supply Current (Typical) | 1.2 µA | µA |
| Reset Threshold Accuracy | 0.75% | |
| Power-On Reset Delay Time | 130 ms | ms |
| Reset Output Type | Active-low, Open-drain | |
| VCC (Min/Max) | 0.9 V / 3.6 V | V |
Key Features
- Precision Supply Voltage Supervision Range: 0.9 V, 1.2 V, 1.5 V, 1.6 V, 2 V, and 3.3 V
- High Trip-Point Accuracy: 0.75%
- Ultra-low Supply Current: 1.2 µA (Typical)
- RESET Defined With Input Voltages as Low as 0.4 V
- Power-On Reset Generator With a Delay Time of 130 ms
- Push/Pull or Open-Drain RESET Outputs
- Manual Reset Pin for Forcing Outputs Low
- Integrated Power-Fail Input (PFI) or SENSE Input for Monitoring Other Voltages
Applications
- Applications Using Low-Power DSPs, Microcontrollers, or Microprocessors
- Portable and Battery-Powered Equipment
- Intelligent Instruments
- Wireless Communication Systems
- Industrial Equipment
- Notebook and Desktop Computers
Q & A
- What is the primary function of the TPS3103K33DBVTG4?
The primary function is to provide circuit initialization and timing supervision for DSP and processor-based systems.
- What is the operating temperature range of the TPS3103K33DBVTG4?
The operating temperature range is -40°C to 85°C.
- What are the monitored voltage ranges for the TPS3103K33DBVTG4?
The monitored voltage ranges are 0.9 V, 1.2 V, 1.5 V, 1.6 V, 2 V, and 3.3 V.
- What is the typical supply current of the TPS3103K33DBVTG4?
The typical supply current is 1.2 µA.
- What type of reset output does the TPS3103K33DBVTG4 have?
The reset output is active-low, open-drain.
- How long is the power-on reset delay time?
The power-on reset delay time is 130 ms.
- Can the TPS3103K33DBVTG4 be manually reset?
- What is the package type and pin count of the TPS3103K33DBVTG4?
The package type is SOT-23 (DBV) with 6 pins.
- Is the TPS3103K33DBVTG4 RoHS compliant?
- What are some common applications for the TPS3103K33DBVTG4?
