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DS1233A-10
DS1233A-10+ is a monitoring device for ensuring proper operation of electronic systems
DS1233A-10
DS1233A-10+ is a monitoring device for ensuring proper operation of electronic systems
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DS1233A-10 DataSheet
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Details
The DS1233A EconoReset monitors two vital conditionsfor a microprocessor: power supply and external override. A precision temperature-compensated reference and comparator circuit are used 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 VCCreturns to an in-tolerance condition, the reset signal is kept in the active state for approximately 350ms to allow the power supply and processor to stabilize. The second function of the DS1233A is pushbutton reset control. The DS1233A debounces a pushbutton closure and will generate a 350ms reset pulse upon release.FEATURES Automatically restarts microprocessor after power failure Monitors pushbutton for external override Internal circuitry debounces pushbutton switch Maintains reset for 350ms after VCCreturns to an in-tolerance condition or pushbutton released Accurate 10% or 15% microprocessor 3.3V power supply monitoring Reduces need for discrete components Precision temperature-compensated voltage reference and voltage sensor Low-cost TO-92 package or surface mount SOT-223 package Internal 5kpull-up resistor Operating temperature of -40C to +85C
Key Features
- Automatically restarts microprocessor after power failure
- Monitors pushbutton for external override
- Internal circuitry debounces pushbutton switch
- Maintains reset for 350ms after VCCreturns to an in-tolerance condition or pushbutton
- released
- Accurate 10% or 15% microprocessor 3.3V power supply monitoring
- Reduces need for discrete components
- Precision temperature-compensated voltage reference and voltage sensor
- Low-cost TO-92 package or surface mount SOT-223 package
- Internal 5kpull-up resistor
- Operating temperature of -40C to +85C
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 | TO-92 |
| Pin Count ! | 3 | Reach Compliance Code | |
| Adjustable Threshold | NO | Analog IC - Other Type | POWER SUPPLY SUPPORT CIRCUIT |
| JESD-30 Code | O-PBCY-T3 | JESD-609 Code | e0 |
| Moisture Sensitivity Level | NOT SPECIFIED | Number of Channels | 1 |
| Number of Functions | 1 | Number of Terminals | 3 |
| Operating Temperature-Max | 85 °C | Operating Temperature-Min | -40 °C |
| Package Body Material | PLASTIC/EPOXY | Package Code | TO-92 |
| Package Shape | ROUND | Package Style | CYLINDRICAL |
| Peak Reflow Temperature (Cel) | 240 | Qualification Status ! | COMMERCIAL |
| Supply Voltage-Max (Vsup) | 5.5 V | Supply Voltage-Min (Vsup) | 1.2 V |
| Supply Voltage-Nom (Vsup) | 5 V | Surface Mount ! | NO |
| Temperature Grade ! | INDUSTRIAL | Terminal Finish | TIN LEAD |
| Terminal Form ! | THROUGH-HOLE | Terminal Position | BOTTOM |
| Time@Peak Reflow Temperature-Max (s) | 20 |
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 DS1233A-10?
The DS1233A-10 is a low-power, precision voltage monitor and microprocessor supervisory circuit designed by Maxim Integrated. It is commonly used to monitor the power supply voltage of microcontroller-based systems and provide a reset signal during power-up, power-down, and brownout conditions.
How Does DS1233A-10 Work?
The DS1233A-10 works by continuously monitoring the supply voltage of a microcontroller or microprocessor. When the voltage falls below a preset threshold, it asserts a reset signal to the microcontroller, ensuring proper system initialization and preventing erratic operation due to insufficient power supply voltage. It features a low quiescent current, making it suitable for battery-powered applications.
How Many Pins does DS1233A-10 have and What are the Functions of the Pinout Configuration?
The DS1233A-10 is housed in a 3-pin TO-92 package. The pinout configuration includes:
- VCC: Input voltage supply pin.
- GND: Ground pin.
- RESET: Reset output pin, which is driven low when the voltage falls below the threshold.
What are the Pros and Cons of DS1233A-10?
Pros:
- Reliable Voltage Monitoring: Provides accurate monitoring of the power supply voltage to ensure reliable system operation.
- Low Power Consumption: Operates with low quiescent current, suitable for battery-powered applications.
- Compact Package: The TO-92 package is space-efficient and allows for easy integration into existing designs.
- Simple Operation: Requires minimal external components for basic voltage monitoring functionality.
Cons:
- Limited Features: May not have advanced monitoring or reporting capabilities compared to more sophisticated supervisor circuits.
- Temperature Sensitivity: Performance may be affected by temperature variations, requiring careful thermal management in some applications.
Are There Any Equivalents/Alternatives to DS1233A-10 for Recommendation?
- The MAX1232 from Maxim Integrated is a similar microprocessor supervisory circuit offering comparable functionality.
- Alternatives to the DS1233A-10 include the MCP809T from Microchip Technology and the TPS3823 from Texas Instruments.
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