Overview
The MC34161DR2G, produced by onsemi, is a universal voltage monitor designed for a wide range of voltage sensing applications. This device is part of the MC34161/MC33161 series, which offers an economical solution for positive and negative voltage detection. It 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. This flexibility makes it suitable for various voltage monitoring tasks in different industries.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Power Supply Input Voltage (VCC) | 2.0 to 40 | V |
| Comparator Input Voltage Range (Vin) | -1.0 to +40 | V |
| Comparator Output Sink Current (ISink) | 20 | mA |
| Comparator Output Voltage (Vout) | 40 | V |
| Operating Junction Temperature (TJ) | -40 to +150 | °C |
| Operating Ambient Temperature (TA) | 0 to +70 (MC34161), -40 to +105 (MC33161), -40 to +125 (NCV33161) | °C |
| Storage Temperature Range (Tstg) | -55 to +150 | °C |
| Threshold Voltage (Vth) | 1.245 to 1.27 | V |
| Output Sink Saturation Voltage (VOL) | 0.05 to 0.6 | V |
| Reference Output Voltage (Vref) | 2.48 to 2.60 | V |
| Power Supply Current (ICC) | 450 to 900 | 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.
- Low Operating Voltage: 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, suitable for negative voltage sensing and window detection applications.
- Low Standby Current: Minimizes power consumption.
- Open Collector Outputs: Enhances device flexibility.
- AEC-Q100 Qualified and PPAP Capable: Suitable for automotive and other demanding applications.
- Pb-Free and RoHS Compliant: Environmentally friendly.
Applications
The MC34161DR2G is used in a variety of applications including:
- Appliance Equipment: Monitors critical voltages to ensure system reliability.
- Automotive Systems: Suitable for use in harsh automotive environments due to its AEC-Q100 qualification.
- Consumer Electronics: Enhances system reliability with minimal incremental cost.
- Industrial Equipment: Monitors positive and negative voltages in industrial settings.
Q & A
- What is the primary function of the MC34161DR2G?
The MC34161DR2G is a universal voltage monitor designed for detecting positive and negative voltages in various applications. - What is the minimum supply voltage required for the MC34161DR2G?
The minimum supply voltage is 2.0 V for positive voltage sensing and 4.0 V for negative voltage sensing. - What is the purpose of the Mode Select Input?
The Mode Select Input allows the user to program each channel for different types of voltage sensing applications, such as over, under, and window detection. - What is the output type of the MC34161DR2G?
The device has two open collector outputs capable of sinking in excess of 10 mA. - Is the MC34161DR2G suitable for automotive applications?
Yes, it is AEC-Q100 qualified and PPAP capable, making it suitable for automotive and other demanding applications. - What is the operating temperature range for the MC34161DR2G?
The operating ambient temperature range is 0 to +70°C for MC34161, -40 to +105°C for MC33161, and -40 to +125°C for NCV33161. - Does the MC34161DR2G have built-in ESD protection?
Yes, the device contains ESD protection and exceeds the Human Body Model 2000 V per MIL-STD-883, Method 3015. - What is the reference voltage provided by the MC34161DR2G?
The device provides a pinned out 2.54 V reference with built-in short circuit protection. - Is the MC34161DR2G environmentally friendly?
Yes, it is Pb-Free and RoHS Compliant. - What are the typical applications of the MC34161DR2G?
The device is used in appliance, automotive, consumer, and industrial equipment for monitoring critical voltages.
