Allicdata Part #: | NCP303LSN28T1OS-ND |
Manufacturer Part#: |
NCP303LSN28T1 |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | ON Semiconductor |
Short Description: | IC DETECTOR VOLTAGE 2.8V 5TSOP |
More Detail: | Supervisor Open Drain or Open Collector 1 Channel ... |
DataSheet: | NCP303LSN28T1 Datasheet/PDF |
Quantity: | 1000 |
1 +: | 0.00000 |
Series: | -- |
Packaging: | Tape & Reel (TR) |
Part Status: | Obsolete |
Type: | Simple Reset/Power-On Reset |
Number of Voltages Monitored: | 1 |
Output: | Open Drain or Open Collector |
Reset: | Active Low |
Reset Timeout: | Adjustable/Selectable |
Voltage - Threshold: | 2.8V |
Operating Temperature: | -40°C ~ 125°C (TA) |
Mounting Type: | Surface Mount |
Package / Case: | SOT-23-5 Thin, TSOT-23-5 |
Supplier Device Package: | 5-TSOP |
Base Part Number: | NCP303 |
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NCP303LSN28T1 is a CMOS resetting circuit which belongs to Supervisors peripheral management integrated circuits (PMIC - Supervisors) within the family of peripheral devices for electronic circuits. It is a low power, low voltage, fault-tolerant single-channel supervisor circuit. It is ideal for use in applications that require a reset output from a microcontroller as a result of the set conditions.
The NCP303LSN28T1 features an input monitor with a selectable monitor threshold, a selectable reset active level, an adjustable reset time and automatic reset with power-on or manual reset. The power-on reset (POR) and manual reset (MR) logic are generated internally by the NCP303LSN28T1. It is also designed to provide an early warning system of power fault conditions in applications where a microcontroller needs to be reset quickly and accurately on fault detection.
The application field of NCP303LSN28T1 is in wide range. It is used in any application that requires resetting of a microcontroller under the conditions such as brown-out, power-on reset, and low voltage warning, etc. It is also used in systems and equipment which require power hold-up delays and in distributed systems. It can be used in automotive, lighting controlling, medical and industrial applications.
As for working principle of NCP303LSN28T1, it works through a combination of digital and analog processing. It is composed of voltage monitor, reset comparator, counter, reset output, reset logic and power-on reset (POR) logic and manual reset (MR) logic, control logic. It is designed to provide power failure warning and resetting of a microcontroller quickly and accurately when a fault occurs. The voltage monitor comprises a voltage reference, voltage sense amplifier and band gap reference to detect a low voltage or power-on fault condition. The reset comparator monitors the voltage via the voltage sense amplifier and the voltage reference. When the detected voltage falls below the reset threshold, the comparator generates a logic low reset signal to the counter. The counter generates a reset pulse output with adjustable time duration.
The control logic controls the reset output, reset logic and the manual reset logic. The reset logic generates a reset signal whenever power-on or manual reset is given. The manual reset logic is used for manually resetting the circuitry. The control logic provides a selectable option for resetting the circuitry either by power-on reset or manual reset.
The reset output consists of the reset pulse output and the reset active level. The reset pulse output is the adjustable delay reset pulse generated by the counter and is used to reset the microcontroller. The reset active level is used to indicate the resetting of the microcontroller. It is adjustable and is used to set the resetting voltage of the microcontroller.
NCP303LSN28T1 is designed to make resetting of microcontroller easy, fast and safe. It monitors a microcontroller constantly and generates a reset pulse with adjustable duration when a fault is detected. Its wide range of applications, low power consumption, low voltage operation and reset active level makes it an ideal choice for many different applications.
The specific data is subject to PDF, and the above content is for reference
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