Overview
The MC33161DG, produced by onsemi, is a universal voltage monitor designed for a wide range of voltage sensing applications. This device is part of the MC33161 series, which includes the MC34161 and NCV33161 models. It offers an economical solution for positive and negative voltage detection, making it suitable for various industries such as appliance, automotive, consumer, and industrial equipment.
The MC33161DG features two comparator channels with hysteresis, a unique Mode Select Input for channel programming, a pinned out 2.54 V reference, and two open collector outputs. Each comparator channel can be configured as either inverting or noninverting, allowing for over, under, and window detection of both positive and negative voltages.
Key Specifications
| Parameter | Min | Max | Unit | |
|---|---|---|---|---|
| Power Supply Input Voltage (VCC) | - | - | 40 | V |
| Comparator Input Voltage Range (Vin) | -1.0 | - | 40 | V |
| Comparator Output Sink Current (ISink) | - | - | 20 | mA |
| Comparator Output Voltage (Vout) | - | - | 40 | V |
| Operating Junction Temperature (TJ) | - | - | 150 | °C |
| Operating Ambient Temperature (TA) for MC33161 | -40 | - | 105 | °C |
| Threshold Voltage (Vth) at TA = 25°C | 1.235 | 1.245 | 1.27 | V |
| Reference Output Voltage (Vref) | 2.48 | 2.54 | 2.60 | V |
| Power Supply Current (ICC) at VCC = 5.0 V | - | - | 560 | μA |
Key Features
- Unique Mode Select Input: Allows channel programming for various voltage sensing applications.
- Over, Under, and Window Voltage Detection: Capable of detecting both positive and negative voltages.
- Positive and Negative Voltage Detection: Fully functional at 2.0 V for positive voltage sensing and 4.0 V for negative voltage sensing.
- Pinned Out 2.54 V Reference: With current limit protection and a guaranteed tolerance of ±2.4% at room temperature.
- Low Standby Current: Enhances device efficiency.
- Open Collector Outputs: Capable of sinking in excess of 10 mA, providing enhanced device flexibility.
- AEC-Q100 Qualified and PPAP Capable: Suitable for automotive and other applications requiring unique site and control change requirements.
- Pb-Free and RoHS Compliant: Environmentally friendly packaging.
Applications
The MC33161DG is versatile and can be used in a variety of applications, including:
- Appliance Equipment: Monitoring critical voltages in household and commercial appliances.
- Automotive Systems: Voltage monitoring in automotive electronics, especially where AEC-Q100 qualification is required.
- Consumer Electronics: Ensuring reliable voltage levels in consumer devices such as smartphones, laptops, and other portable electronics.
- Industrial Equipment: Monitoring and controlling voltages in industrial control systems, power supplies, and other industrial applications.
Q & A
- What is the primary function of the MC33161DG?
The MC33161DG is a universal voltage monitor designed for detecting positive and negative voltages in various applications.
- What is the unique feature of the Mode Select Input?
The Mode Select Input allows the user to program each comparator channel for different types of voltage sensing applications, such as over, under, and window detection.
- What is the minimum supply voltage required for positive voltage sensing?
The minimum supply voltage required for positive voltage sensing is 2.0 V.
- What is the maximum operating ambient temperature for the MC33161?
The maximum operating ambient temperature for the MC33161 is 105°C.
- What is the output sink current capability of the MC33161DG?
The output sink current capability is in excess of 10 mA.
- Is the MC33161DG AEC-Q100 qualified?
Yes, the MC33161DG is AEC-Q100 qualified and PPAP capable, making it suitable for automotive applications.
- What is the reference output voltage of the MC33161DG?
The reference output voltage is 2.54 V with a guaranteed tolerance of ±2.4% at room temperature.
- What are the package options available for the MC33161DG?
The device is available in PDIP-8, SOIC-8, and Micro8 packages.
- Is the MC33161DG Pb-Free and RoHS compliant?
Yes, the MC33161DG is Pb-Free and RoHS compliant.
- What are some common applications of the MC33161DG?
Common applications include appliance equipment, automotive systems, consumer electronics, and industrial equipment.
