Overview
The TPS3803-01DCKR is a low-power voltage detector from Texas Instruments, designed to provide circuit initialization and timing supervision primarily for DSPs, microcontrollers, and processor-based systems. This device is part of the TPS3803 and TPS3805 families of supervisory circuits. The TPS3803-01DCKR features an adjustable sense input, allowing for flexible threshold voltage configuration using external resistors. It operates over a wide temperature range of -40°C to +85°C and is packaged in a compact 5-pin SC-70 package.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SOT-SC70 (DCK) | - |
| Pins | 5 | - |
| Operating Temperature Range | -40 to 85 | °C |
| Supply Current at VDD = 3.3 V | 3 µA (Typical) | µA |
| Threshold Voltage Accuracy | ±1.5% | - |
| Reset Output Type | Open-Drain | - |
| Power-Up Reset Voltage | 0.8 V (Minimum) | V |
| Input Current (SENSE) | -25 to 25 nA | nA |
| Input Capacitance | 1 pF (Typical) | pF |
Key Features
- Adjustable sense input configurable by two external resistors
- High ±1.5% threshold voltage accuracy
- Low supply current: 3 µA typical at VDD = 3.3 V
- Open-drain reset output
- Operating temperature range: -40°C to +85°C
- Compact 5-pin SC-70 package
Applications
- Applications using DSPs, microcontrollers, or microprocessors
- Wireless communication systems
- Portable/battery-powered equipment
- Programmable controls
- Intelligent instruments
- Industrial equipment
- Notebook/desktop computers
- Automotive systems
Q & A
- What is the primary function of the TPS3803-01DCKR?
The primary function is to provide circuit initialization and timing supervision for DSPs, microcontrollers, and processor-based systems.
- What type of package does the TPS3803-01DCKR come in?
The device is packaged in a 5-pin SOT-SC70 (DCK) package.
- What is the operating temperature range of the TPS3803-01DCKR?
The operating temperature range is -40°C to +85°C.
- How is the threshold voltage configured for the TPS3803-01DCKR?
The threshold voltage is adjustable and can be configured using two external resistors.
- What is the typical supply current of the TPS3803-01DCKR at VDD = 3.3 V?
The typical supply current is 3 µA.
- What type of reset output does the TPS3803-01DCKR have?
The reset output is open-drain.
- What is the minimum power-up reset voltage for the TPS3803-01DCKR?
The minimum power-up reset voltage is 0.8 V.
- What are some common applications for the TPS3803-01DCKR?
Common applications include wireless communication systems, portable/battery-powered equipment, programmable controls, and automotive systems.
- How accurate is the threshold voltage of the TPS3803-01DCKR?
The threshold voltage accuracy is ±1.5%.
- What is the input current range for the SENSE input of the TPS3803-01DCKR?
The input current range for the SENSE input is -25 to 25 nA.
