MAX691ACPE+
Power Supply Management Circuit, Adjustable, 1 Channel, CMOS, PDIP16, DIP-16MAX691ACPE+
Power Supply Management Circuit, Adjustable, 1 Channel, CMOS, PDIP16, DIP-16
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MAX691ACPE+ 數據表
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詳細說明
General DescriptionThe MAX691A/MAX693A/MAX800L/MAX800M microprocessor (µP) supervisory circuits are pin-compatible upgrades to the MAX691, MAX693, and MAX695. They improve performance with 30µA supply current, 200ms typ reset active delay on power-up, and 6ns chip enable propagation delay. Features include write protection of CMOS RAM or EEPROM, separate watchdog outputs, backup-battery switchover, and a RESET output that is valid with VCC down to 1V. The MAX691A/MAX800L have a 4.65V typical reset-threshold voltage, and the MAX693A/MAX800M’s reset threshold is 4.4V typical. The MAX800L/MAX800M guarantee power-fail accuracies to ±2%.Features♦ 200ms Power-OK/Reset Timeout Period♦ 1µA Standby Current, 30µA Operating Current♦ On-Board Gating of Chip-Enable Signals, 10ns Max Delay♦ MaxCap™ or SuperCap™ Compatible♦ Guaranteed RESET Assertion to VCC = +1V♦ Voltage Monitor for Power-Fail or Low-Battery Warning♦ Power-Fail Accuracy Guaranteed to ±2% (MAX800L/M)♦ Available in 16-Pin Narrow SO and Plastic DIP PackagesApplications Computers Controllers Intelligent Instruments Automotive Systems Critical µP Power Monitoring
主要特徵
- The MAX691ACPE+ is designed with flexibility in mind, featuring manual reset input and watchdog timer function.
- It has a wide operating supply voltage range from +4V to +18V, allowing it to be used in various systems.
- This component's compact size and low power consumption make it ideal for space-constrained applications or battery-powered devices.
應用
- Server farms
- Automated controllers
- Instrument calibration
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。
Pbfree Code | Yes | Rohs Code | Yes |
Part Life Cycle Code | Transferred | Part Package Code | DIP |
Pin Count ! | 16 | Reach Compliance Code | compliant |
ECCN Code | EAR99 | HTS Code ! | 8542.39.00.01 |
Additional Feature ! | RESET THRESHOLD VOLTAGE IS 4.65V | Adjustable Threshold | YES |
Analog IC - Other Type | POWER SUPPLY MANAGEMENT CIRCUIT | JESD-30 Code | R-PDIP-T16 |
JESD-609 Code | e3 | Length | 19.175 mm |
Moisture Sensitivity Level | 1 | Number of Channels | 1 |
Number of Functions | 1 | Number of Terminals | 16 |
Operating Temperature-Max | 70 °C | Operating Temperature-Min | |
Package Body Material | PLASTIC/EPOXY | Package Code | DIP |
Package Equivalence Code | DIP16,.3 | Package Shape | RECTANGULAR |
Package Style | IN-LINE | Peak Reflow Temperature (Cel) | 260 |
Power Supplies ! | 5 V | Qualification Status ! | Not Qualified |
Seated Height-Max | 4.572 mm | Supply Current-Max (Isup) | 0.1 mA |
Supply Voltage-Max (Vsup) | 5.5 V | Supply Voltage-Min (Vsup) | |
Supply Voltage-Nom (Vsup) | 4.75 V | Surface Mount ! | NO |
Technology | CMOS | Temperature Grade ! | COMMERCIAL |
Terminal Finish | MATTE TIN | Terminal Form ! | THROUGH-HOLE |
Terminal Pitch ! | 2.54 mm | Terminal Position | DUAL |
Threshold Voltage-Nom | +4.65V | Time@Peak Reflow Temperature-Max (s) | 30 |
Width | 7.62 mm |
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 MAX691ACPE+?
The MAX691ACPE+ is a microprocessor supervisor circuit designed by Maxim Integrated. It monitors the power supply voltage and keeps the microprocessor in reset until the voltage reaches the proper operating level, ensuring reliable system startup and operation.
How Does MAX691ACPE+ Work?
The MAX691ACPE+ works by continuously monitoring the power supply voltage. When the voltage falls below a specified threshold, the reset output is activated, holding the microprocessor in a reset state. Once the voltage rises above the threshold and stabilizes, the reset signal is released, allowing the microprocessor to start operation.
How Many Pins does MAX691ACPE+ have and What are the Functions of the Pinout Configuration?
The MAX691ACPE+ is housed in a 16-pin PDIP (Plastic Dual-In-Line Package) package. The pinout configuration includes:
- VCC: Positive power supply pin.
- GND: Ground pin.
- MR: Manual reset pin for external reset control.
- RESET: Reset output to the microprocessor.
- V+: Voltage monitor pin.
- THRS: Threshold adjust pin for setting the monitoring threshold.
- CT: Capacitor pin for timing adjustments.
- Watchdog Timer Pins: Pins for watchdog timer configuration.
What are the Pros and Cons of MAX691ACPE+?
Pros:
- Power Supply Monitoring: Ensures reliable operation by monitoring the power supply voltage.
- Reset Functionality: Provides a reset signal to prevent erratic behavior during power-up or voltage fluctuations.
- Manual Reset: Includes a manual reset pin for external reset control.
- Adjustable Threshold: Allows users to set the voltage monitoring threshold for flexibility.
- Watchdog Timer: Supports watchdog timer functionality for added system reliability.
Cons:
- External Components: May require additional external components such as capacitors for timing adjustments.
- Complexity: Requires understanding of threshold voltage settings and timing considerations for optimal performance.
- Package Size: The 16-pin PDIP package may take up more board space compared to smaller packages.
Are There Any Equivalents/Alternatives to MAX691ACPE+ for Recommendation?
- The MAX823 from Maxim Integrated is a similar microprocessor supervisor circuit with slightly different features.
- Alternatives to the MAX691ACPE+ include the ADM803 from Analog Devices and the TPS3600 from Texas Instruments.
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