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Microchip High Side Current Monitor 16-Pin VQFN PAC1944T-E/4MX
Specifications
| Country of Origin | India |
|---|---|
| Resolution | 16-bit |
| Brand | Microchip |
| Length | 3mm |
| Model | PAC1944T-E/4MX |
| Mount Type | Surface |
| Series | PAC1944 |
| Maximum Operating Temperature | 150°C |
| Package Type | VQFN |
| Minimum Operating Temperature | -40°C |
| Quiescent Current | 5μA |
| Pin Count | 16 |
| Maximum Supply Voltage | 5.5V |
| Minimum Supply Voltage | 2.7V |
Key Features
- Operates over a supply voltage range from 2.7V to 5.5V.
- Features 16-bit resolution for voltage and current measurement.
- Includes a digital circuitry for power calculation and energy accumulation.
- Provides a 100 mV full-scale current sense voltage range.
- Equipped with two ALERT/GPIO pins for threshold detection events.
- Temperature operating range from -40°C to 150°C ensures robust performance.
- Suitable for embedded computing, networking, and power management applications.
- Uses real-time calibration to minimize offset error with no input filters required.
Product Description
Microchip PAC1944T-E/4MX is a high side current monitor IC designed with four channels and a 16-pin VQFN surface mount package. It operates with a supply voltage between 2.7V and 5.5V, supporting a wide range of embedded and industrial applications requiring precise current and voltage monitoring.
This IC integrates a bus voltage monitor, current sense amplifier, and highly accurate 16-bit resolution ADCs to deliver precise measurements for voltage, current, and power consumption. The internal digital circuitry calculates power and accumulates energy data, enabling long-term energy monitoring periods exceeding one year.
The device supports a 100 mV full-scale range for current sensing through an external sense resistor, allowing flexible current ranges. It includes two independent ALERT/GPIO pins to signal over/under voltage, current thresholds, or overpower events programmable per channel for enhanced system protection.
Operating over a temperature range of -40°C to 150°C, the PAC1944T-E/4MX suits demanding environments such as server computing, optical networking modules, AI and GPU applications, and notebook or tablet power management. The device offers a compact 3mm length footprint, making it applicable for space-sensitive applications.
Sampling up to 5120 SPS in burst mode per channel, this current monitor IC provides fast and precise data acquisition with low quiescent current of 5μA to simplify system routing and reduce power consumption. Real-time calibration minimizes offset errors, eliminating the need for input filters.
Operates from 2.7V to 5.5V supply voltage for flexible power supply integration. 16-bit resolution ADCs ensure accurate voltage and current measurement. Digital power calculation and energy accumulation support prolonged energy monitoring.
Two ALERT/GPIO pins provide threshold event detection for system safety. Wide temperature range -40°C to 150°C for industrial-grade operation. 100 mV full-scale current sense voltage with external resistor configurability.
Real-time calibration reduces offset error, requiring no input filters. High-speed SPI mode supports 3.4 Mbps communication. Compact 16-pin VQFN package with 3mm length footprint.
Microchip PAC1944T-E/4MX is ideal for industrial, embedded computing, networking, cloud computing, and optical networking power monitoring systems. This device enhances power management precision and system reliability in demanding electronic environments.
Explore more Current Sensor ICs and precision monitoring products in the Electronics & Electricals section of EnvMart for advanced industrial and laboratory applications.
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Frequently Asked Questions
This model operates over a supply voltage range from 2.7V to 5.5V.
It features a 16-bit resolution for voltage and current measurement, ensuring precise data acquisition.
The maximum operating temperature for the PAC1944T-E/4MX is 150°C.
This model is designed with four channels for monitoring current.
The quiescent current for this device is 5μA, which helps reduce overall power consumption.
It comes in a 16-pin VQFN package type, suitable for surface mounting.
It includes two independent ALERT/GPIO pins for threshold detection events, allowing for programmable over/under voltage and current thresholds.
The minimum operating temperature for the PAC1944T-E/4MX is -40°C.
It provides a 100 mV full-scale current sense voltage range, configurable through an external sense resistor.
This current monitor is suitable for embedded computing, networking, and power management applications.
Real-time calibration minimizes offset errors and eliminates the need for input filters, enhancing measurement accuracy.
It supports high-speed SPI mode communication at 3.4 Mbps.
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