DS1231S-20 – DALLAS
Voltage Supervisor, Single Channel, Open Drain, 16-SOIC
Stock Quantity: 19
Selling Unit: Each
| Quantity | Price (ex VAT) |
|---|---|
| 1+ | 3.29 |
| 10+ | |
| 50+ | |
| 100+ |
19 in stock
Contact us for volume pricing
- Same day shipping if ordered before 14.00 GMT
- 6 month warranty on all stock items
- All stock held and shipped from our UK warehouse
- Worldwide shipping available, contact us for a quotation
- We can ship on your DHL or UPS account if required
- Any import duties or taxes are the responsibility of the receiver
Overview
The DALLAS DS1231S-20 is a robust 1-channel supervisory integrated circuit designed to monitor a single voltage rail and assert a reset signal when that rail falls below a critical threshold. Its primary function is to ensure system integrity during power-up and brown-out conditions by providing a reliable reset pulse. A key design consideration often overlooked is the trade-off between the precise voltage threshold accuracy and the component’s susceptibility to transient voltage spikes, which can lead to spurious resets if not properly filtered at the system level. This device, manufactured by Analog Devices Inc./Maxim Integrated, offers a dependable solution for critical power monitoring applications.
Key Features
- Monitors 1 voltage rail
- Thresholds at 4.37V and 4.62V
- Open-drain/open-collector output
- Active-high or active-low reset logic
- 150ms minimum reset timeout
- 16-SOIC (0.295″, 7.50mm Width) surface mount package
Applications
The component is engineered for deployment in systems requiring high reliability and performance under specific operating conditions. It provides functional stability across the stated design envelope.
- Power-on reset sequencing for microcontrollers
- Voltage monitoring in battery-powered portable devices
- System reset generation during power supply fluctuations
- Ensuring data integrity in embedded systems during power events
