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ADM691ANZ
+BOMIC SUPERVISOR 1 CHANNEL 16DIP
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ManufacturerAnalog Devices Inc.
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Mfr. Part #ADM691ANZ
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Datasheet ADM691ANZ DataSheet
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Package PDIP-16
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In Stock5801
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Specifications
| Attribute | Value |
| Package | Bulk,Tube |
| ProductStatus | Active |
| Type | Battery Backup Circuit |
| NumberofVoltagesMonitored | 1 |
| Voltage-Threshold | 4.65V |
| Output | Open Drain, Push-Pull |
| Reset | Active High/Active Low |
| ResetTimeout | 35ms Minimum |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| MountingType | Through Hole |
| Package/Case | 16-DIP (0.300, 7.62mm) |
Overview
Description
Equivalent
1. Maxim Integrated's MAX691 or MAX705 series.
2. Texas Instruments' TPS3705 or TL7705 series.
3. STMicroelectronics' STM706 or STM809 series.
These alternatives offer similar functions such as power supply monitoring and reset generation for microprocessors. Make sure to verify specific features and pin compatibility when selecting a replacement.
Features
1. Reset Functionality: It provides a reset output to ensure the microprocessor starts in a known state after power-up, power-down, or during brownout conditions.
2. Voltage Monitoring: Monitors the power supply voltage, offering a reset signal when the voltage drops below a specified threshold.
3. Watchdog Timer: Includes a watchdog timer to reset the system if it becomes unresponsive or enters a faulty state.
4. Battery Backup Switching: Facilitates switching to a backup battery when the primary power source fails, ensuring continuous operation.
5. Adjustable Reset Time: The reset timeout period can be adjusted to suit specific application requirements.
6. Manual Reset Input: Allows for an external reset to be initiated manually.
7. Low Power Consumption: Designed to consume minimal power, making it suitable for battery-operated devices.
These features make the ADM691ANZ suitable for a wide range of electronic systems, enhancing their reliability and performance.
Pinout
1. VCC - Power supply input.
2. GND - Ground.
3. RESET - Active-low reset output.
4. RESET - Active-high reset output.
5. PFO - Power-fail output.
6. PFI - Power-fail input.
7. WDI - Watchdog timer input.
8. WDO - Watchdog timer output.
9. MR - Manual reset input.
10. ST - Strobe input for battery switchover.
11. VBATT - Battery backup input.
12. VOUT - Output voltage from the switch.
13. CEIN - Chip enable input.
14. CEOUT - Chip enable output.
15. VLOW - Low voltage indicator.
16. NC - No connection, sometimes used for other specific functions depending on the model variant.
This device is mainly used for ensuring reliable operation of microprocessor-based systems by supervising supply voltage levels and providing backup battery switching.
Manufacturer
Application
1. Power Management: Ensures stable power supply by monitoring voltage levels and providing reset signals during power failures or brownouts.
2. Microprocessor Reset: Automatically generates reset signals to microprocessors during power-up, power-down, and brownout conditions.
3. Battery Monitoring: Monitors battery levels in portable and battery-powered devices, offering low-battery detection and switching.
4. Watchdog Timer: Prevents system lock-up by resetting the microprocessor if it fails to operate correctly within a set timeframe.
5. Memory Protection: Safeguards data integrity by controlling write access to non-volatile memory during power instability.
These features make it ideal for use in consumer electronics, industrial controls, and telecommunications.