Description

The DS1233A-15+ is an electronic component model in the supervisors category. It serves as an EconoReset for monitoring two vital conditions of a microprocessor: power supply and external override. It utilizes a precision temperature-compensated reference and comparator circuit to monitor the status of the power supply (VCC). When an out-of-tolerance condition is detected, it generates an internal power fail signal, initiating a reset to the active state. When VCC returns to an in-tolerance condition, the reset signal remains active for approximately 350ms to allow stabilization of the power supply and processor. The DS1233A-15+ also incorporates pushbutton reset control, debouncing a pushbutton closure and generating a 350ms reset pulse upon release.

Specifications and features

- Automatically restarts microprocessor after power failure
- Monitors pushbutton for external override
- Internal circuitry debounces pushbutton switch
- Maintains reset for 350ms after VCC returns to an in-tolerance condition or pushbutton released
- Accurate 10% or 15% microprocessor 3.3V power supply monitoring
- Reduces need for discrete components
- Precision temperature-compensated voltage reference and voltage sensor
- Low-cost TO-92 package or surface mount SOT-223 package
- Internal 5k pull-up resistor
- Operating temperature of -40°C to +85°C

Application Scenarios

The DS1233A-15+ is commonly used in scenarios where microprocessors require monitoring of power supply conditions and external override. It is particularly useful in applications that demand a precise and temperature-compensated voltage reference for stable performance.

Comparison

- Automatically restarts microprocessor after power failure, ensuring continuous operation.
- Monitors pushbutton for external override, offering control flexibility.
- Internal circuitry debounces pushbutton switch, guaranteeing accurate reset generation.
- Maintains reset for 350ms after VCC returns to an in-tolerance condition or pushbutton released, allowing sufficient time for stabilization.
- Accurate power supply monitoring with a 10% or 15% tolerance, ensuring reliable performance.
- Reduced need for discrete components, simplifying the design.
- Low-cost packaging options available.
- Internal pull-up resistor simplifies circuit connections.
- Wide operating temperature range of -40°C to +85°C for versatile usage.

- None identified.