ADM823 |
RFQ for ADM823 Required Field |
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| Technical/Catalog Information | ADM823LYKS-R7 |
| Vendor | Analog Devices Inc (VA) |
| Category | Integrated Circuits (ICs) |
| Output | Push-Pull, Totem Pole |
| Reset | Active Low |
| Package / Case | SC-70-5, SC-88A, SOT-323-5, SOT-353, 5-TSSOP |
| Packaging | Cut Tape (CT) |
| Number of Voltages Monitored | 1 |
| Reset Timeout | 140 ms Minimum |
| Type | Watchdog Circuit |
| Voltage - Threshold | 4.63V |
| Operating Temperature | -40°C ~ 125°C |
| Drawing Number | * |
| Lead Free Status | Contains Lead |
| RoHS Status | RoHS Non-Compliant |
| Other Names | ADM823LYKS R7 ADM823LYKSR7 ADM823LYKS R7CT ND ADM823LYKSR7CTND ADM823LYKS-R7CT |
| Product | Manufacturers | Pack | D/C |
| ADM823 | - | - | 07+ |
The ADM823/ADM824/ADM825 are supervisory circuits which monitor power supply voltage levels and code execution integrity in microprocessor-based systems. As well as providing power on reset signals, an on-chip watchdog timer can reset the microprocessor if it fails to strobe within a preset timeout period. A reset signal can also be asserted by means of an external push-button, through a manual reset input. The three parts feature different combinations of watchdog input, manual reset input and output stage configuration, as shown in Table 1.
Each part is available in a choice of seven reset threshold options ranging from 2.19 V to 4.63 V. The reset and watchdog timeout periods are fixed at 140 ms (min) and 1.6s (typ), respectively.
The ADM823/ADM824/ADM825 are available in 5-lead SC70 and SOT-23 packages and typically consume only 3 A, making them suitable for use in low power portable applications.
Typical Application |
Features |
| Microprocessor systemsComputersControllersIntelligent instrumentsPortable equipment | Precision 2.5 V to 5 V power supply monitor7 reset threshold options: 2.19 V to 4.63 V140 ms (min) reset timeoutWatchdog timer with 1.6s timeout (ADM823, ADM824)Manual reset input (ADM823, ADM825)Push-pull output stages:RESET (ADM823)RESET, RESET (ADM824/ADM825)Low power consumption (3 A)Guaranteed reset output valid to VCC = 1 VPower supply glitch immunitySpecified over automotive temperature range5-lead SC70 and SOT-23 packages |
