Overview
The TPS37A010122DSKR, produced by Texas Instruments, is a member of the TPS37 family of wide input range and low quiescent current window supervisors. This device is designed for fast detection of overvoltage (OV) and undervoltage (UV) conditions, making it suitable for various industrial applications. It features a wide supply voltage range of 2.7 V to 65 V, ultra-low quiescent current of 1 µA (typical), and programmable sense and reset time delays. The TPS37A010122DSKR is functional safety capable and provides documentation to support functional safety system design.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage Range | 2.7 to 65 | V |
| Quiescent Current | 1 | µA (typical) |
| Voltage Threshold Range | 2.7 V to 36 V (1.5% max accuracy), 800 mV (1% max accuracy) | V |
| SENSE and RESET Pins Voltage Rating | 65 | V |
| Programmable Reset Time Delay | 10 nF = 12.8 ms, 10 µF = 12.8 s | - |
| Programmable Sense Time Delay | 10 nF = 1.28 ms, 10 µF = 1.28 s | - |
| Operating Temperature Range | -40 to +125 | °C |
| Package Options | WSON (10-pin), SOT-23 (14-pin) | - |
Key Features
- Functional Safety Capable: Documentation available to support functional safety system design.
- Wide Supply Voltage Range: 2.7 V to 65 V.
- Low Quiescent Current: 1 µA (typical).
- Flexible Voltage Threshold Options: 2.7 V to 36 V (1.5% max accuracy), 800 mV (1% max accuracy), and fixed options.
- Built-in Hysteresis: Prevents false reset signals.
- Programmable Reset and Sense Time Delays: Adjustable using external capacitors.
- Manual Reset (MR) Feature: Allows forcing a system reset.
- Output Topology: Open-Drain or Push-Pull.
- High Impedance Input on SENSE Pins: Supports external resistors for voltage monitoring.
Applications
- Factory Automation
- Motor Drives
- Building Automation
- Analog Input Modules
- CPU (PLC Controllers)
- Servo Drive Control and Power Stage Modules
- HVAC Valve and Actuator Control
Q & A
- What is the supply voltage range of the TPS37A010122DSKR?
The supply voltage range is from 2.7 V to 65 V. - What is the typical quiescent current of the TPS37A010122DSKR?
The typical quiescent current is 1 µA. - What are the voltage threshold options for the TPS37A010122DSKR?
The device offers voltage threshold options from 2.7 V to 36 V (1.5% max accuracy) and an 800 mV option (1% max accuracy), along with fixed options. - How can the reset and sense time delays be adjusted?
The reset and sense time delays can be adjusted using external capacitors connected to the CTSx and CTRx pins. - What is the operating temperature range of the TPS37A010122DSKR?
The operating temperature range is from -40°C to +125°C. - What are the package options for the TPS37A010122DSKR?
The device is available in WSON (10-pin) and SOT-23 (14-pin) packages. - Does the TPS37A010122DSKR support functional safety?
Yes, the device is functional safety capable and provides relevant documentation. - What is the purpose of the SENSE and RESET pins?
The SENSE pins monitor the voltage, and the RESET pins output the reset signal based on the voltage conditions. - Can external resistors be used with the SENSE pins?
Yes, the high impedance input of the SENSE pins supports the use of external resistors. - What is the manual reset (MR) feature?
The manual reset feature allows forcing a system reset using the CTRx pins.
