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DS1818R-10
Power Supply Support Circuit
DS1818R-10
Power Supply Support Circuit
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Manufacturer Part # : DS1818R-10
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Package/Case: SOT23-3
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Brand: Analog Devices
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Product Categories : Voltage Regulators - DC DC Switching Regulators
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DS1818R-10 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 DS1818 EconoReset uses a precision temperature-compensated 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 150 ms to allow the power supply and processor to stabilize.FEATURES ● Automatically restarts a microprocessor after power failure ● Monitors pushbutton for external override ● Maintains reset for 150 ms after VCC returns to an in-tolerance condition ● Reduces need for discrete components ● Precision temperature-compensated voltage reference and voltage sensor ● Accurate 5%, 10% or 20% power monitoring ● Low-cost TO-92 or space saving surface mount SOT-23 packages available ● Efficient open-drain output with internal 5.5 kΩ=pull-up resistor ● Operating temperature -40°C to +85°C
Key Features
- The specifications of DS18R-10 include:
- - Temperature-compensated voltage monitor for precise power-fail detection
- - Automatic restart after power loss
- - Fixed 3.3V reset threshold for reliable operation
Application
- Effective in protecting circuits
- Reliable in diverse applications
- Useful for thermal monitoring
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
| Product Category ! | Supervisory Circuits | Type | Voltage Supervisory |
| Mounting Style | SMD/SMT | Package / Case | SOT-23-3 |
| Threshold Voltage | 2.88 V | Number of Inputs Monitored | 1 Input |
| Output Type | Active Low, Open Drain | Manual Reset | Manual Reset |
| Watchdog Timers | No Watchdog | Battery Backup Switching | No Backup |
| Reset Delay Time | 250 ms | Supply Voltage - Max | 5.5 V |
| Minimum Operating Temperature | - 40 C | Maximum Operating Temperature ! | + 85 C |
| Series | DS1818R | Brand | Analog Devices / Maxim Integrated |
| Chip Enable Signals | No Chip Enable | Height | 0.94 mm |
| Length | 2.92 mm | Operating Supply Current | 35 uA |
| Overvoltage Threshold ! | 2.97 V | Power Fail Detection | Yes |
| Product Type ! | Supervisory Circuits | Subcategory | PMIC - Power Management ICs |
| Supply Voltage - Min | 1 V | Undervoltage Threshold ! | 2.8 V |
| Width | 1.3 mm | Part # Aliases | DS1818R |
| Unit Weight | 0.050717 oz |
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 DS1818R-10?
The DS1818R-10 is a temperature-compensated voltage reference designed by Maxim Integrated. It provides a stable reference voltage of 10V with high accuracy over a wide temperature range, making it suitable for precision measurement and control applications.
How Does DS1818R-10 Work?
The DS1818R-10 operates by utilizing a temperature-compensated bandgap core to generate a stable 10V reference voltage. It adjusts for temperature variations to ensure consistent output voltage, maintaining accuracy across varying environmental conditions. The device is typically used as a stable voltage reference in analog circuit designs.
How Many Pins does DS1818R-10 have and What are the Functions of the Pinout Configuration?
The DS1818R-10 comes in various packages, such as TO-92 and SOT-23. The pinout configuration for the TO-92 package includes:
- VOUT: Output voltage pin.
- V+: Positive supply voltage pin.
- GND: Ground pin.
For the SOT-23 package, additional pins may be present for thermal considerations and package-specific requirements.
What are the Pros and Cons of DS1818R-10?
Pros:
- Stable Reference Voltage: Offers a stable 10V reference voltage for precision applications.
- Temperature Compensation: Features temperature compensation for consistent performance over a wide temperature range.
- Low Drift: Provides low output voltage drift to maintain accuracy over time.
- Small Footprint: Available in compact packages for space-constrained designs.
Cons:
- Fixed Voltage: The reference voltage is fixed at 10V, limiting flexibility in certain applications.
- External Components: May require additional circuitry for specific voltage levels or output filtering.
- Cost: Precision voltage references can be more expensive compared to standard voltage regulators.
Are There Any Equivalents/Alternatives to DS1818R-10 for Recommendation?
- The REF102 from Texas Instruments is a precision voltage reference alternative to the DS1818R-10.
- Equivalents to the DS1818R-10 include the MAX6126 from Maxim Integrated and the LT1461 from Analog Devices.
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