DS1233-5
TO92-packaged DS1233-5+ integrated circuit, supervisor IC with open drain output, voltage range 1.2V to 5.5VDCDS1233-5
TO92-packaged DS1233-5+ integrated circuit, supervisor IC with open drain output, voltage range 1.2V to 5.5VDC
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Manufacturer Part # : DS1233-5
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Package/Case: TO92-3
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Brand: Analog Devices
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Product Categories : Supervisors
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Service & Packaging
Service & Packaging
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DS1233-5 DataSheet
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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 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
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- 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.
Product Category ! | Supervisory Circuits | RoHS | N |
Type | Voltage Supervisory | Mounting Style | Through Hole |
Package / Case | TO-92-3 | Threshold Voltage | 5 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 | 450 ms |
Supply Voltage - Max | 5.5 V | Minimum Operating Temperature | - 40 C |
Maximum Operating Temperature ! | + 85 C | Series | DS1233 |
Brand | Analog Devices / Maxim Integrated | Chip Enable Signals | No Chip Enable |
Height | 4.95 mm (Max) | Length | 4.95 mm (Max) |
Operating Supply Current | 50 uA | Operating Supply Voltage ! | 5 V |
Overvoltage Threshold ! | 4.75 V | Power Fail Detection | Yes |
Product Type ! | Supervisory Circuits | Factory Pack Quantity | 1 |
Subcategory | PMIC - Power Management ICs | Supply Voltage - Min | 1.2 V |
Undervoltage Threshold ! | 4.5 V | Width | 3.94 mm (Max) |
Part # Aliases | DS1233 90-12330-005 | Unit Weight | 0.016000 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 DS1233-5?
The DS1233-5 is a low-power micro-monitor chip designed by Maxim Integrated. It is used to monitor system voltage and provide a reset signal in the event of a power failure or voltage drop. The chip is commonly used in electronic systems to ensure proper operation and system integrity.
How Does DS1233-5 Work?
The DS1233-5 works by continuously monitoring the system voltage. When the voltage falls below a predefined threshold, the DS1233-5 asserts a reset signal to the system, ensuring a controlled and orderly shutdown or reset. It helps prevent erratic behavior or data corruption due to unstable power conditions.
How Many Pins does DS1233-5 have and What are the Functions of the Pinout Configuration?
The DS1233-5 is housed in a 3-pin TO-92 package. The pinout configuration includes:
- VCC: Power supply pin.
- GND: Ground pin.
- RESET: Reset output pin.
What are the Pros and Cons of DS1233-5?
Pros:
- Low Power Consumption: Operates with very low power, suitable for battery-powered systems.
- Voltage Monitoring: Provides reliable voltage monitoring to ensure system stability.
- Simple Configuration: Requires minimal external components for operation.
- Small Package: The 3-pin TO-92 package is space-efficient, suitable for compact designs.
Cons:
- Limited Functionality: The DS1233-5 primarily focuses on voltage monitoring and reset signaling.
- Fixed Reset Threshold: The reset threshold voltage is fixed and may not be adjustable for some applications.
Are There Any Equivalents/Alternatives to DS1233-5 for Recommendation?
- The MAX1232 from Maxim Integrated is a similar micro-monitor chip with comparable features.
- Alternatives to the DS1233-5 include the MCP809 from Microchip Technology and the TPS3808 from Texas Instruments.
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