Overview
The TPS3828-33DBVR is a part of the TPS382x family of supervisory circuits produced by Texas Instruments. These devices are designed to provide circuit initialization and timing supervision, primarily for DSP and processor-based systems. During power-on, the RESET output asserts when the supply voltage (VDD) becomes greater than 1.1 V and remains active low as long as VDD is less than the threshold voltage (VIT−). The device includes an internal timer that delays the return of the output to the inactive state to ensure proper system reset.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SOT-23 (DBV) | - |
| No. of Pins | 5 | - |
| Operating Temperature Range | -40°C to 85°C | °C |
| Supply Voltage Min | 1.1 V | V |
| Supply Voltage Max | 5.5 V | V |
| Threshold Voltage | 2.93 V | V |
| Reset Type | Active-Low, Open Drain | - |
| Reset Timeout | 120 ms (Minimum) | ms |
| Supply Current | 15 µA (Typical) | µA |
| RoHS Compliance | Yes | - |
Key Features
- Power-on reset generator with a fixed delay time of 200 ms
- Manual reset input
- Reset output available in active-low and open drain configurations
- Supply voltage supervision range: 2.5 V, 3 V, 3.3 V, 5 V
- Watchdog timer with options for different timeout periods
- Low supply current of 15 µA (typical)
- Compact 5-pin SOT-23 package
- Operating temperature range: -40°C to 85°C
Applications
- DSPs, microcontrollers, or microprocessors
- Industrial equipment
- Programmable controls
- Automotive systems
- Portable and battery-powered equipment
- Intelligent instruments
- Wireless communications systems
- Notebook and desktop computers
Q & A
- What is the primary function of the TPS3828-33DBVR?
The TPS3828-33DBVR is a supervisory circuit designed to provide circuit initialization and timing supervision for DSP and processor-based systems.
- What is the threshold voltage for the TPS3828-33DBVR?
The threshold voltage for the TPS3828-33DBVR is 2.93 V.
- What types of reset outputs are available on the TPS3828-33DBVR?
The TPS3828-33DBVR offers active-low and open drain reset output configurations.
- What is the typical supply current of the TPS3828-33DBVR?
The typical supply current of the TPS3828-33DBVR is 15 µA.
- What is the operating temperature range of the TPS3828-33DBVR?
The operating temperature range of the TPS3828-33DBVR is -40°C to 85°C.
- Does the TPS3828-33DBVR have a watchdog timer?
Yes, the TPS3828-33DBVR includes a watchdog timer with various timeout options.
- What package type is the TPS3828-33DBVR available in?
The TPS3828-33DBVR is available in a 5-pin SOT-23 package.
- Is the TPS3828-33DBVR RoHS compliant?
Yes, the TPS3828-33DBVR is RoHS compliant.
- What are some common applications for the TPS3828-33DBVR?
Common applications include DSPs, microcontrollers, industrial equipment, automotive systems, and portable electronics.
- Does the TPS3828-33DBVR require external components for operation?
No, the TPS3828-33DBVR does not require external components for operation.
