Overview
The SCV431BSN1T1G is a precision low voltage shunt regulator from onsemi, part of the TLV431 series. This device is programmable over a wide voltage range of 1.24V to 16V, making it highly versatile for various applications. The SCV431BSN1T1G features a guaranteed reference accuracy of ±0.5% at 25°C and ±1.0% over the entire industrial temperature range of -40°C to 85°C. It is designed to exhibit a sharp low current turn-on characteristic and a low dynamic impedance of 0.20 Ω over an operating current range of 0.1mA to 20mA. This component is available in a micro miniature SOT-23 package, making it suitable for space-constrained designs.
Key Specifications
| Characteristic | Symbol | Value | Unit |
|---|---|---|---|
| Reference Voltage | Vref | 1.228 - 1.240 | V |
| Reference Voltage Tolerance | ±0.5% at 25°C, ±1.0% over -40°C to 85°C | ||
| Cathode to Anode Voltage | VKA | 18 | V |
| Cathode Current Range | IK | -20 to 25 | mA |
| Reference Input Current Range | Iref | 0.05 to 10 | mA |
| Operating Junction Temperature | TJ | -40 to 125 | °C |
| Package Type | SOT-23 (TO-236) |
Key Features
- Programmable output voltage range of 1.24V to 16V
- Voltage reference tolerance of ±0.5% for B series and ±1.0% over the entire industrial temperature range
- Sharp low current turn-on characteristic
- Low dynamic output impedance of 0.20 Ω from 100 μA to 20 mA
- Wide operating current range of 50 μA to 20 mA
- Micro miniature SOT-23 package
- Pb-Free and Halide-Free device
- AEC-Q100 qualified and PPAP capable for automotive and other applications requiring unique site and control change requirements
Applications
- Low output voltage (3.0V to 3.3V) switching power supply error amplifier
- Adjustable voltage or current linear and switching power supplies
- Voltage monitoring
- Current source and sink circuits
- Analog and digital circuits requiring precision references
- Low voltage zener diode replacements
- Power supplies
- Smart phone charger/adapters
Q & A
- What is the programmable output voltage range of the SCV431BSN1T1G?
The programmable output voltage range is from 1.24V to 16V.
- What is the reference voltage tolerance for the SCV431BSN1T1G?
The reference voltage tolerance is ±0.5% at 25°C and ±1.0% over the entire industrial temperature range of -40°C to 85°C.
- What are the key package types available for the SCV431BSN1T1G?
The device is available in a micro miniature SOT-23 package.
- What is the operating current range of the SCV431BSN1T1G?
The operating current range is from 50 μA to 20 mA.
- Can the SCV431BSN1T1G be used as an error amplifier in switching power supplies?
- Is the SCV431BSN1T1G suitable for automotive applications?
- What is the thermal resistance of the SOT-23 package for the SCV431BSN1T1G?
The thermal resistance, junction-to-ambient, for the SOT-23 package is 491°C/W.
- Is the SCV431BSN1T1G Pb-Free and Halide-Free?
- What are some common applications where the SCV431BSN1T1G can replace zener diodes?
- What is the maximum cathode to anode voltage for the SCV431BSN1T1G?
