Overview
The TS831-4IZ-AP from STMicroelectronics is an ultra-low power integrated circuit designed for voltage supervision and reset functions. This component incorporates a high stability band-gap voltage reference and a comparator with an open drain output. It is particularly suited for applications requiring precise voltage monitoring and reset capabilities, especially in low-power systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Threshold Voltage (VCC Increasing) | 4.18 - 4.70 | V |
| Threshold Voltage (VCC Decreasing) | 4.13 - 4.66 | V |
| Hysteresis Voltage | 50 - 200 | mV |
| Current Consumption (VCC = 5V) | 12 | µA |
| Low Level Output Voltage (VCC = 4V, IOL = 8mA) | 450 - 1300 | mV |
| High Level Output Current (VCC = 5V) | 2 - 1000 | nA |
| Response Time High to Low | 20 | µs |
| Supply Voltage | 1 - 5.5 | V |
| Operating Temperature Range | -40 to +125 | °C |
| Package Types | TO92, SO8, TSSOP8 |
Key Features
- Ultra-low power consumption: 12µA maximum at VCC = 5V.
- Precision reset threshold with internal thermally matched resistors.
- Guaranteed reset operation for VCC down to 1V.
- Open drain output comparator with fast response time (20µs for a 10mV overdrive).
- Internal built-in hysteresis to increase noise margin and prevent false reset operations.
- Pin-to-pin compatible with MC33064 and MC33164.
Applications
- Power-on reset generator for microcontrollers.
- Power failure detector.
Q & A
- What is the primary function of the TS831-4IZ-AP?
The primary function is to provide voltage supervision and reset capabilities for microcontrollers and other electronic systems.
- What is the typical threshold voltage for the TS831-4IZ-AP?
The typical threshold voltage is 4.50V.
- How much current does the TS831-4IZ-AP consume at 5V supply voltage?
The current consumption is 12µA maximum at VCC = 5V.
- What is the response time of the comparator in the TS831-4IZ-AP?
The response time is 20µs for a 10mV overdrive.
- What are the available package types for the TS831-4IZ-AP?
The available package types are TO92, SO8, and TSSOP8.
- What is the operating temperature range of the TS831-4IZ-AP?
The operating temperature range is -40°C to +125°C.
- Is the TS831-4IZ-AP compatible with other voltage supervisors?
Yes, it is pin-to-pin compatible with MC33064 and MC33164.
- What is the purpose of the internal hysteresis in the TS831-4IZ-AP?
The internal hysteresis increases the noise margin and prevents false reset operations.
- Can the TS831-4IZ-AP operate at low supply voltages?
Yes, it guarantees reset operation for VCC down to 1V.
- What are common applications for the TS831-4IZ-AP?
Common applications include power-on reset generators for microcontrollers and power failure detectors.
