Overview
The TPS3836J25DBVR, produced by Texas Instruments, is a member of the TPS383x family of nano power voltage supervisors. These devices are designed to provide circuit initialization and timing supervision, primarily for digital signal processors (DSPs) and processor-based systems. The TPS3836J25DBVR operates from an input supply voltage range of 1.6 V to 6 V and is specifically configured for a threshold voltage of 2.25 V, making it suitable for systems requiring precise voltage monitoring.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Supply Voltage Range | 1.6 V to 6 V | V |
| Threshold Voltage (VIT) | 2.25 V | V |
| Reset Delay Time | 10 ms or 200 ms (selectable) | ms |
| Supply Current | 220 nA (typical) | nA |
| Operating Temperature Range | –40°C to 85°C | °C |
| Package Type | 5-pin SOT23 | |
| Reset Output Type | Active-low, push-pull | |
| Manual Reset | Active-low logic input |
Key Features
- Precision supply voltage supervision with a threshold voltage of 2.25 V.
- Power-on reset generator with selectable delay time (10 ms or 200 ms) via the CT pin.
- Manual reset capability through the MR pin.
- Low supply current of 220 nA (typical), making it suitable for low-power applications.
- Available in 5-pin SOT23 and 2-mm × 2-mm SON packages.
- Temperature range of –40°C to 85°C.
- Active-low, push-pull RESET output that does not require a pullup resistor.
Applications
- Applications using low-power DSPs, microcontrollers, or microprocessors.
- Portable and battery-powered equipment.
- Intelligent instruments.
- Wireless communication systems.
- Notebook computers.
- Systems using the MSP430 microcontroller.
Q & A
- What is the primary function of the TPS3836J25DBVR?
The primary function is to provide circuit initialization and timing supervision by monitoring the supply voltage and generating a reset signal when the voltage falls below the specified threshold. - What is the threshold voltage for the TPS3836J25DBVR?
The threshold voltage (VIT) is 2.25 V. - How can the reset delay time be configured?
The reset delay time can be set to either 10 ms or 200 ms by connecting the CT pin to GND or VDD, respectively. - What is the typical supply current of the TPS3836J25DBVR?
The typical supply current is 220 nA. - What are the operating temperature ranges for this device?
The device operates over a temperature range of –40°C to 85°C. - What type of package is the TPS3836J25DBVR available in?
The device is available in a 5-pin SOT23 package. - Does the TPS3836J25DBVR require a pullup resistor for the RESET output?
No, the TPS3836J25DBVR has an active-low, push-pull RESET output that does not require a pullup resistor. - How does the manual reset function work?
The manual reset is an active-low logic input; when the MR pin is logic low, the reset output is asserted to the active state. - What are some common applications for the TPS3836J25DBVR?
Common applications include low-power DSPs, microcontrollers, portable and battery-powered equipment, intelligent instruments, and wireless communication systems. - Can the TPS3836J25DBVR be used in automotive systems?
For automotive systems, it is recommended to use the TPS383x-Q1 variant.
