DS1815：3.3V EconoReset with Push-Pull Output
The DS1815 EconoReset uses a precision temperature reference and comparator circuit to monitor the status of the power supply (VCC). When an out-of-tolerance condition is detected, an internal power-fail signal is generated which forces reset to the active state. When VCC returns to an in-tolerance condition, the reset signal is kept in the active state for approximately 150ms to allow the power supply and processor to stabilize.
Key Features
| DS1815: Block Diagram |
DataSheet
| title | Download file |
|---|---|
| DS1815 Data Sheet | DS1815.pdf |
Parametrics
| Part Number | Reset Thresh. (V) | Reset Out | tRESET | Watchdog Feature | Reset Thresh. Accur. (%) | ICC (µA) | Package/Pins | Budgetary Price |
|---|---|---|---|---|---|---|---|---|
| min | @ +25°C | max | See Notes | |||||
| DS1815 | 2.5 to 3.3 | Active Low Push-Pull | 85ms to 300ms | No Watchdog | 2.5 | 35 | SOT/3 TO92/3 | $1.18 @1k |
Quality and Environmental Data
Ordering Information
| Part Number | Notes | Status | Recommended Replacement | Package | Temp | RoHS |
|---|---|---|---|---|---|---|
| DS1815-10 | 3.3V-10% Monitor | No Longer Available | DS1815-10+ | TO92,;3 pin;19.5 mm² | -40°C to +85°C | No |
| DS1815-10+ | Active | TO92,;3 pin;19.5 mm² | -40°C to +85°C | Lead Free | ||
| DS1815-10+T&R | 3.3V-10% | Active | TO92,;3 pin;27.6 mm² | -40°C to +85°C | Lead Free | |
| DS1815-10/T&R | 3.3V-10% | No Longer Available | DS1815-10+T&R | TO92,;3 pin;27.6 mm² | -40°C to +85°C | No |
| DS1815-20 | 3.3V-20% Monitor | No Longer Available | DS1815-20+ | TO92,;3 pin;19.5 mm² | -40°C to +85°C | No |
| DS1815-20+ | Active | TO92,;3 pin;19.5 mm² | -40°C to +85°C | Lead Free | ||
| DS1815-20+T&R | 3.3V-20% | Active | TO92,;3 pin;27.6 mm² | -40°C to +85°C | Lead Free | |
| DS1815-20/T&R | 3.3V-20% | No Longer Available | DS1815-20+T&R | TO92,;3 pin;27.6 mm² | -40°C to +85°C | No |
| DS1815-5 | 3.3V-5% Monitor | No Longer Available | DS1815-5+ | TO92,;3 pin;19.5 mm² | -40°C to +85°C | No |
| DS1815-5+ | Active | TO92,;3 pin;19.5 mm² | -40°C to +85°C | Lead Free | ||
| Part Number | Notes | Status | Recommended Replacement | Package | Temp | RoHS |
| DS1815-5+T&R | 3.3V-5% | Active | TO92,;3 pin;27.6 mm² | -40°C to +85°C | Lead Free | |
| DS1815-5/T&R | 3.3V-5% | No Longer Available | DS1815-5+T&R | TO92,;3 pin;27.6 mm² | -40°C to +85°C | No |
| DS1815R-10+T&R | 3.3V-10% | Active | SOT,;3 pin;8 mm² | -40°C to +85°C | Lead Free | |
| DS1815R-10-U | No Longer Available | DS1815R-10-U+ | SOT,;3 pin;8 mm² | -40°C to +85°C | No | |
| DS1815R-10-U+ | Active | SOT,;3 pin;8 mm² | -40°C to +85°C | Lead Free | ||
| DS1815R-10/T&R | 3.3V-10% Tolerance | No Longer Available | DS1815R-10+T&R | SOT,;3 pin;8 mm² | -40°C to +85°C | No |
| DS1815R-20+T&R | 3.3V-20% | Active | SOT,;3 pin;8 mm² | -40°C to +85°C | Lead Free | |
| DS1815R-20-U | No Longer Available | DS1815R-20-U+ | SOT,;3 pin;8 mm² | -40°C to +85°C | No | |
| DS1815R-20-U+ | Active | SOT,;3 pin;8 mm² | -40°C to +85°C | Lead Free | ||
| DS1815R-20/T&R | 3.3V-20% Tolerance | No Longer Available | DS1815R-20+T&R | SOT,;3 pin;8 mm² | -40°C to +85°C | No |
| Part Number | Notes | Status | Recommended Replacement | Package | Temp | RoHS |
| DS1815R-5+T&R | 3.3V-5% | Active | SOT,;3 pin;8 mm² | -40°C to +85°C | Lead Free | |
| DS1815R-5-U | No Longer Available | DS1815R-5-U+ | SOT,;3 pin;8 mm² | -40°C to +85°C | No | |
| DS1815R-5-U+ | Active | SOT,;3 pin;8 mm² | -40°C to +85°C | Lead Free | ||
| DS1815R-5/T&R | 3.3V-5% | No Longer Available | DS1815R-5+T&R | SOT,;3 pin;8 mm² | -40°C to +85°C | No |
- DS1815.pdf DS1815
- DS1815.pdf DS1815
- DS1815.pdf DS1815
- DS1815.pdf DS1815
- 原理框图 DS1815
