Key facts
- Brand
- Analog Devices
- Model
- ADM1087
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-06-08
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Analog Devices ADM1085/ADM1086/ADM1087/ADM1088 Datasheet
The ADM1085/ADM1086/ADM1087/ADM1088 are simple sequencing circuits designed to provide a time delay between the enabling of voltage regulators and/or dc-dc converters in multiple supply systems. These devices initiate a time delay once the output voltage of the first power module reaches a preset threshold, allowing subsequent regulators to power up in a controlled sequence. Any number of these devices can be cascaded to sequence multiple power supplies, with threshold levels adjustable via external resistors to monitor voltages as low as 0.6 V.
Read onlineAnalog Devices ADM1087 specifications
| Supply Current | 15 µA (typ) |
|---|---|
| Operating Temperature Range | -40°C to +125°C |
| Package | 6-lead SC70 |
| Vin Operating Voltage Range | 0 to 22 V |
| Vin Rising Threshold | 0.6 V (typ) |
| Vin Falling Threshold | 0.585 V (typ) |
| Vin Hysteresis | 15 mV |
| CEXT Charge Current | 250 nA (max) |
Source: Analog Devices ADM1085/ADM1086/ADM1087/ADM1088 Datasheet
All Analog Devices ADM1087 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the minimum voltage the ADM1085/ADM1086/ADM1087/ADM1088 can monitor?
The devices can monitor voltages as low as 0.6 V by choosing appropriate resistor values.
From: Analog Devices ADM1085/ADM1086/ADM1087/ADM1088 Datasheet
Can these sequencers be cascaded?
Yes, any number of these devices can be cascaded with regulators to allow sequencing of multiple power supplies.
From: Analog Devices ADM1085/ADM1086/ADM1087/ADM1088 Datasheet
What is the enable input polarity for the ADM1087?
The ADM1087 uses an active‑low enable input (ENIN).
What is the maximum voltage the open‑drain output can handle?
The open‑drain output can be pulled up to 22 V.