Overview
The MC33161P, produced by ON Semiconductor, is a universal voltage monitor designed for a wide range of voltage sensing applications. This device offers an economical solution for detecting both positive and negative voltages, making it versatile for use in various electronic systems. The MC33161P features two comparator channels, each with hysteresis, a unique Mode Select Input for channel programming, a pinned out 2.54 V reference, and two open collector outputs capable of sinking over 10 mA. This configuration allows for over, under, and window detection of voltages, enhancing system reliability with minimal incremental cost.
Key Specifications
| Characteristics | Symbol | Min | Typ | 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 |
| Threshold Voltage, Vin Increasing (TA = 25°C) | Vth | 1.245 | 1.235 | 1.27 | V |
| Threshold Hysteresis, Vin Decreasing | VH | 15 | 25 | 35 | mV |
| Operating Junction Temperature | TJ | - | - | 150 | °C |
| Operating Ambient Temperature | TA | -40 | - | 105 | °C |
| Storage Temperature Range | Tstg | -55 | - | 150 | °C |
Key Features
- Unique Mode Select Input: Allows channel programming for flexible configuration.
- Over, Under, and Window Voltage Detection: Capable of detecting over, under, and window voltages for both positive and negative voltages.
- Dual Comparator Channels: Each channel has hysteresis and can be configured as either inverting or noninverting.
- Pinned Out 2.54 V Reference: Provides a stable reference voltage for accurate measurements.
- Open Collector Outputs: Capable of sinking over 10 mA, suitable for driving external devices.
- ESD Protection: Exceeds Human Body Model 2000 V and Machine Model 200 V tests.
Applications
The MC33161P is suitable for a variety of applications, including:
- Appliance Monitoring: For monitoring critical voltages in household appliances.
- Automotive Systems: For voltage monitoring in automotive electronics.
- Consumer Electronics: For ensuring reliable voltage levels in consumer devices.
- Industrial Equipment: For monitoring and controlling voltages in industrial settings.
Q & A
- What is the primary function of the MC33161P?
The MC33161P is a universal voltage monitor designed for detecting positive and negative voltages in various electronic systems. - What is the minimum supply voltage required for the MC33161P?
The minimum supply voltage is 2.0 V for positive voltage sensing and 4.0 V for negative voltage sensing. - How many comparator channels does the MC33161P have?
The MC33161P has two comparator channels, each with hysteresis. - What is the purpose of the Mode Select Input?
The Mode Select Input allows for channel programming, enabling the configuration of each comparator channel as either inverting or noninverting. - What is the maximum power dissipation of the MC33161P at 70°C?
The maximum power dissipation varies by package type, but for example, the P Suffix package has a maximum power dissipation of 800 mW at 70°C. - What is the operating ambient temperature range for the MC33161P?
The operating ambient temperature range is -40°C to +105°C. - Does the MC33161P have ESD protection?
Yes, the MC33161P exceeds Human Body Model 2000 V and Machine Model 200 V tests for ESD protection. - What is the threshold voltage range for the MC33161P?
The threshold voltage range is approximately 1.245 V to 1.27 V at 25°C. - How much current can the open collector outputs sink?
The open collector outputs can sink in excess of 10 mA. - What types of voltage detection can the MC33161P perform?
The MC33161P can perform over, under, and window voltage detection for both positive and negative voltages.
