DS1816R-10
Voltage Detector
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製造商零件號 # : DS1816R-10
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包裝/封裝: SOT23-3
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製造商: Analog Devices
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產品分類 : Voltage Regulators - DC DC Switching Regulators
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DS1816R-10 數據表
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詳細說明
The DS1816 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.FEATURES Automatically restarts a microprocessor after power failure Maintains reset for 150ms 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 20% tolerance for use with 3V systems Low-cost TO-92 or space saving SOT-23 packages available Efficient open-drain output with internal 5kpull-up resistor Operating temperature -40C to +85C
主要特徵
- The DS3231 is an I2C and SPI low-power real-time clock
- - Measures time from 1970 to 2035
- - Accuracy of ±1 minute per year
- - Operating temperature range of -40°C to +85°C
應用
- DS1816R-10: Power failure solution
- Reset maintenance after VCC returns
- Precision voltage monitoring
規格
以下是所選零件的基本參數,涉及零件的特性及其所屬類別。
Product Category ! | Supervisory Circuits | Type | Voltage Supervisory |
Mounting Style | SMD/SMT | Package / Case | SOT-23-3 |
Threshold Voltage | 4.35 V | Number of Inputs Monitored | 1 Input |
Output Type | Active Low, Open Drain | Manual Reset | No Manual Reset |
Watchdog Timers | No Watchdog | Battery Backup Switching | No Backup |
Reset Delay Time | 150 ms | Supply Voltage - Max | 5.5 V |
Minimum Operating Temperature | - 40 C | Maximum Operating Temperature ! | + 85 C |
Series | DS1816R | 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 | 0 V | Undervoltage Threshold ! | 2.8 V |
Width | 1.3 mm | Part # Aliases | DS1816R |
Unit Weight | 0.050717 oz |
數據表 PDF
數據表記錄了器件的特性、絕對最大額定值、應用等,這對於作為器件特定應用的整體指南大有裨益。
常見問題解答
What is DS1816R-10?
The DS1816R-10 is a microprocessor supervisory circuit manufactured by Maxim Integrated. It is designed to monitor the power supply voltage and provide a reset signal to the microprocessor or other digital system when necessary.
How Does DS1816R-10 Work?
The DS1816R-10 works by continuously monitoring the power supply voltage. When the voltage falls below a specified threshold, the DS1816R-10 asserts a reset signal to the microprocessor, ensuring a controlled reset and reliable system operation. This helps prevent the system from operating improperly under low-voltage conditions.
How Many Pins does DS1816R-10 have and What are the Functions of the Pinout Configuration?
The DS1816R-10 is housed in a small 4-pin SOT-23 package. The pinout configuration includes:
- VCC: Power supply input pin.
- GND: Ground pin.
- MR: Manual reset input pin (optional).
- RESET: Reset output pin to the microprocessor or system.
What are the Pros and Cons of DS1816R-10?
Pros:
- Overvoltage Protection: Monitors power supply voltage to prevent system damage from overvoltage conditions.
- Low Power Consumption: Operates with low power, ideal for power-constrained applications.
- Compact Size: The small SOT-23 package is space-efficient and suitable for compact designs.
- Manual Reset Option: Provides flexibility with an optional manual reset input.
Cons:
- Single Voltage Monitoring: Monitors a single voltage rail, may require additional circuitry for multi-rail systems.
- Limited Functions: Primarily designed for basic power supply monitoring and reset generation. Additional features may require external components.
Are There Any Equivalents/Alternatives to DS1816R-10 for Recommendation?
- Alternatives to the DS1816R-10 include the MAX823 from Maxim Integrated and the TPS3808 from Texas Instruments.
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