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DS1834
2-CHANNEL POWER SUPPLY SUPPORT CKT, PDIP8, 0.300 INCH, DIP-8
DS1834
2-CHANNEL POWER SUPPLY SUPPORT CKT, PDIP8, 0.300 INCH, DIP-8
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Service & Packaging
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DS1834 DataSheet
Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!
Details
The DS1834 Dual EconoResets monitors three vital system conditions: 5-volt supply, 3.3-volt supply, and an external override. First a precision temperature reference and comparator circuit monitor the status of the 5-volt supply and the 3.3-volt supply. When an out-of-tolerance condition is detected, an internal power-fail signal is generated which forces the reset of the affected supply to an active state.FEATURES■ 5V power-on reset■ 3.3V power-on reset■ Internal power is drawn from higher of either the 5VIN input or the 3.3VIN input■ Excellent for systems designed to operate with dual power supplies■ Asserts resets during power transients■ Pushbutton reset input for system override■ Maintains reset for 350 ms after VCC returns to an in-tolerance condition■ Reduces need for discrete components■ Precision temperature-compensated voltage reference and voltage sensor■ 8-pin DIP, 8-pin SOIC, and 8-pin µ-SOP available■ CMOS output for low current operation on the DS1834 and DS1834D■ Operating temperature of -40°C to +85°C
Key Features
- 5V power-on reset
- 3.3V power-on reset
- Internal power is drawn from higher of either the 5VIN input or the 3.3VIN input
- Excellent for systems designed to operate with dual power supplies
- Asserts resets during power transients
- Pushbutton reset input for system override
- Maintains reset for 350 ms after VCC returns to an in-tolerance condition
- Reduces need for discrete components
- Precision temperature-compensated voltage reference and voltage sensor
- 8-pin DIP, 8-pin SOIC, and 8-pin µ-SOP available
- CMOS output for low current operation on the DS1834 and DS1834D
- Operating temperature of -40°C to +85°C
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
| Pbfree Code | No | Rohs Code | No |
| Part Life Cycle Code | Active | Part Package Code | DIP |
| Pin Count ! | 8 | Reach Compliance Code | |
| Additional Feature ! | PUSHBUTTON RESET | Adjustable Threshold | NO |
| Analog IC - Other Type | POWER SUPPLY SUPPORT CIRCUIT | JESD-30 Code | R-PDIP-T8 |
| JESD-609 Code | e0 | Length | 9.375 mm |
| Moisture Sensitivity Level | 1 | Number of Channels | 2 |
| Number of Functions | 1 | Number of Terminals | 8 |
| Operating Temperature-Max | 85 °C | Operating Temperature-Min | -40 °C |
| Package Body Material | PLASTIC/EPOXY | Package Code | DIP |
| Package Shape | RECTANGULAR | Package Style | IN-LINE |
| Peak Reflow Temperature (Cel) | 240 | Qualification Status ! | COMMERCIAL |
| Seated Height-Max | 4.572 mm | Supply Voltage-Max (Vsup) | 5.5 V |
| Supply Voltage-Min (Vsup) | 1.2 V | Supply Voltage-Nom (Vsup) | 3.3 V |
| Surface Mount ! | NO | Temperature Grade ! | INDUSTRIAL |
| Terminal Finish | TIN LEAD | Terminal Form ! | THROUGH-HOLE |
| Terminal Pitch ! | 2.54 mm | Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 20 | Width | 7.62 mm |
Specification Comparison
Datasheet PDF
Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.
FAQs
What is DS1834?
The DS1834 is a temperature sensor and watchdog timer IC (integrated circuit) designed by Maxim Integrated. It is commonly used in applications requiring temperature monitoring and system supervision, such as industrial control systems, automotive electronics, and power management systems.
How Does DS1834 Work?
The DS1834 works by sensing the ambient temperature using an internal temperature sensor and providing accurate temperature measurements. Additionally, it includes a watchdog timer function that monitors the system's operation and resets the system if necessary, enhancing system reliability and stability.
How Many Pins does DS1834 have and What are the Functions of the Pinout Configuration?
The DS1834 is housed in an 8-pin SOIC (Small Outline Integrated Circuit) package. The pinout configuration includes:
- VDD: Power supply pin.
- GND: Ground pin.
- OS: Open-drain active-low output for the temperature sensor.
- ACTIVE: Active-high input to enable the temperature measurement.
- RESET: Active-low push-pull output for the watchdog timer reset signal.
- STBY: Standby mode control input.
- CLK: Clock input for the watchdog timer.
- TEMP: Temperature sensor output.
What are the Pros and Cons of DS1834?
Pros:
- Temperature Monitoring: Provides accurate temperature measurements, suitable for thermal management applications.
- Watchdog Timer: Enhances system reliability by monitoring and resetting the system if needed.
- Low Power Consumption: Operates with low power, minimizing energy consumption in battery-powered systems.
- Compact Package: The 8-pin SOIC package is space-efficient, suitable for compact designs.
Cons:
- Complexity: May require careful system integration and configuration for proper operation.
- External Components: Depending on the application, additional external components may be needed for optimal performance.
Are There Any Equivalents/Alternatives to DS1834 for Recommendation?
- The DS1620 from Maxim Integrated is a similar temperature sensor and watchdog timer IC with additional functionalities.
- Alternatives to the DS1834 include the MCP9803 from Microchip Technology and the TMP117 from Texas Instruments.
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