UC3543NG4 Datasheet/PDFThe UC3543NG4 is a power monitoring integrated circuit (PMIC) device designed for use in controlling and monitoring power supply systems. It is a low power, cost-effective PMIC with a range of features designed to provide efficient power system management with low noise and low power consumption. The device can be used in a variety of control and monitoring applications, such as load share, peak load control, and step-down converter control.
General specification
- OperatingTemperatureRange:-40°C to +85°C.
- Packaging: So 14 Plastic SMD
- PeakOutputCurrent: 2A
Application field
The UC3543NG4 is a versatile integrated circuit suitable for a variety of control and monitoring applications in the power sector, such as controlling voltage and current, peak load monitoring and protection, load share, and step-down converter control. The device can be used in industrial and consumer applications, such as motors, lighting, and HVAC systems. In addition, the device is also suitable for use in automobile, medical, and communication systems.
Working principle
The UC3543NG4 is a low power, integrated circuit for monitoring and controlling power supply systems. It has two internal comparators that can be used to monitor voltage and current levels. The comparators have their own reference levels and can be used to detect peak loads or set critical points. An open drain voltage regulator output is integrated into the device, which can be used to regulate and control a DC voltage source.
The UC3543NG4 also contains an on-board microcontroller which can be programmed to perform various control functions. This microcontroller can be used to set the reference levels of the internal comparators, adjust the integrated voltage regulator, and enable external interrupts for signal monitoring. The device also contains an internal Digital-to-Analog Converter (DAC) which can be used to adjust the output voltage of the voltage regulator.
The UC3543NG4 has a built-in programmable watchdog timer to ensure that the system is operating correctly. This timer can also be used as a reset signal if the output voltage or current levels exceed the programmed reference levels. The device also provides an analog temperature sensor and a current sense input to further enhance system protection.
The UC3543NG4 has a wide operating temperature range of -40°C to +85°C and is available in an SO 14 Plastic SMD package. It is a low power, cost-effective device with a range of features designed to provide efficient power system management with low noise and low power consumption.