Overview
The NCV33164D-5R2G is a micropower undervoltage sensing circuit designed by onsemi, specifically for use as a reset controller in microprocessor-based systems. This device is part of the MC34164 series and is tailored for applications requiring low voltage detection with minimal power consumption. It features a temperature-compensated bandgap reference, a comparator with precise thresholds, and built-in hysteresis to prevent erratic reset operations. The NCV33164D-5R2G is particularly suited for automotive and other applications that require site and change control due to its robust design and reliability.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Power Input Supply Voltage | Vin | -1.0 | 12 | V | |
| Reset Output Voltage | VO | -1.0 | 12 | V | |
| Reset Output Sink Current | ISink | Internally Limited | mA | ||
| Threshold Voltage (High State Output, Vin Increasing) | VIH | 4.15 | 4.15 | 4.33 | V |
| Threshold Voltage (Low State Output, Vin Decreasing) | VIL | 4.27 | 4.27 | 4.45 | V |
| Hysteresis (ISink = 100 μA) | VH | 0.02 | 0.09 | V | |
| Output Sink Saturation (Vin = 4.0 V, ISink = 1.0 mA) | VOL | 0.14 | V | ||
| Quiescent Input Current (Vin = 5.0 V) | Iin | 12 | μA | ||
| Operating Ambient Temperature Range | TA | -40 | +125 | °C | |
| Storage Temperature Range | Tstg | -65 | +150 | °C |
Key Features
- Temperature-compensated bandgap reference
- Precise comparator thresholds guaranteed over temperature
- Comparator hysteresis to prevent erratic reset operations
- Reset output capable of sinking in excess of 6.0 mA
- Internal clamp diode for discharging delay capacitor
- Guaranteed reset operation with 1.0 V input
- Extremely low standby current: as low as 9.0 μA
- Economical packaging options: TO-92 (TO-226AA), TSOP-5, SOIC-8, and Micro8 surface mount packages
- Pb-Free packages available
- NCV prefix for automotive and other applications requiring site and change control
Applications
The NCV33164D-5R2G is designed for use in various microprocessor-based systems where reliable undervoltage detection is crucial. Key applications include:
- Portable electronic devices requiring extended battery life
- Automotive systems needing robust and reliable voltage monitoring
- Industrial equipment where precise voltage detection is essential
- Any system requiring low power consumption and accurate voltage monitoring
Q & A
- What is the primary function of the NCV33164D-5R2G?
The primary function is to act as an undervoltage sensing circuit and reset controller in microprocessor-based systems.
- What are the typical threshold voltages for the NCV33164D-5R2G?
The typical threshold voltages are 4.15 V for the high state output (Vin increasing) and 4.27 V for the low state output (Vin decreasing).
- What is the hysteresis of the comparator?
The hysteresis is typically 0.02 V to 0.09 V.
- What is the maximum reset output sink current?
The reset output can sink in excess of 6.0 mA.
- What are the operating temperature ranges for the NCV33164D-5R2G?
The operating ambient temperature range is -40°C to +125°C, and the storage temperature range is -65°C to +150°C.
- What types of packages are available for the NCV33164D-5R2G?
The device is available in TO-92 (TO-226AA), TSOP-5, SOIC-8, and Micro8 surface mount packages.
- Is the NCV33164D-5R2G suitable for automotive applications?
Yes, the NCV prefix indicates that it is suitable for automotive and other applications requiring site and change control.
- What is the quiescent input current of the NCV33164D-5R2G?
The quiescent input current is typically 12 μA at Vin = 5.0 V.
- Does the NCV33164D-5R2G have Pb-Free packaging options?
Yes, Pb-Free packages are available.
- What is the purpose of the internal clamp diode?
The internal clamp diode is for discharging the delay capacitor).
