Overview
The NCV809STRG, produced by onsemi, is a cost-effective system supervisor circuit designed to monitor the supply voltage (VCC) in digital systems and provide a reset signal to the host processor when necessary. This device is part of the MAX809/810 series and is optimized for use in various applications requiring precise voltage monitoring and reset functionality. The NCV809STRG does not require any external components, making it a compact and efficient solution. It is available in SOT-23 and SC-70 packages, which are suitable for space-constrained designs.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Power Supply Voltage (VCC to GND) | VCC | -0.3 | - | 6.0 | V |
| Supply Current (VCC = 3.3 V) | ICC | - | 0.5 | 1.2 | µA |
| Reset Threshold (Vin Decreasing) | VTH | 4.78 | 4.83 | 4.97 | V |
| Reset Active TimeOut Period | tRP | 1.0 | - | 140 | ms |
| Operating Temperature | TA | -40 | - | 105 | °C |
| Package Type | - | - | - | SOT-23 (TO-236) | - |
Key Features
- Precision VCC Monitor for 1.5 V, 1.8 V, 2.5 V, 3.0 V, 3.3 V, and 5.0 V supplies
- Precision Monitoring Voltages from 1.2 V to 4.9 V available in 100 mV steps
- Four Guaranteed Minimum RESET Output Duration (1 ms, 20 ms, 100 ms, and 140 ms)
- RESET Output Guaranteed to VCC = 1.0 V
- Low Supply Current of 0.5 µA (VCC = 3.3 V)
- VCC Transient Immunity
- No External Components Required
- Wide Operating Temperature: -40°C to 105°C
- Pb-Free and RoHS Compliant
Applications
- Computers
- Embedded Systems
- Battery Powered Equipment
- Critical Microprocessor Power Supply Monitoring
- Automotive Systems (Body Electronics, Braking, Infotainment, Instrument Cluster, Navigation, Occupant Comfort, Occupant Protection, Powertrain)
Q & A
- What is the primary function of the NCV809STRG?
The primary function of the NCV809STRG is to monitor the supply voltage (VCC) in digital systems and provide a reset signal to the host processor when the voltage falls below a specified threshold.
- What are the available package types for the NCV809STRG?
The NCV809STRG is available in SOT-23 and SC-70 packages.
- What is the typical supply current of the NCV809STRG at 3.3 V?
The typical supply current is 0.5 µA at VCC = 3.3 V.
- What are the guaranteed minimum RESET output durations available?
The guaranteed minimum RESET output durations are 1 ms, 20 ms, 100 ms, and 140 ms.
- Is the NCV809STRG suitable for battery-powered applications?
- What is the operating temperature range of the NCV809STRG?
The operating temperature range is -40°C to 105°C.
- Does the NCV809STRG require any external components?
No, the NCV809STRG does not require any external components.
- Is the NCV809STRG Pb-Free and RoHS Compliant?
- What are some typical applications of the NCV809STRG?
Typical applications include computers, embedded systems, battery-powered equipment, and critical microprocessor power supply monitoring, among others.
- How does the NCV809STRG handle transient glitches on the VCC line?
The NCV809STRG is optimized to reject fast transient glitches on the VCC line.
