The ADM1085AKSZ-REEL7 is a Voltage Sequencer with high-voltage open-drain output stage which can be pulled up to voltage levels as high as 22V through an external resistor. The Simple Sequencing? circuit provides a time delay between the enabling of voltage regulators at power-up in multiple supply systems. When the output voltage of the first regulator reaches a preset threshold, a time delay is initiated before an enable signal allows subsequent regulators to power-up. Any number of this device can be cascaded with regulators to allow sequencing of multiple power supplies. Threshold levels can be set with a pair of external resistors in a voltage divider configuration. By choosing appropriate resistor values, the threshold can be adjusted to monitor voltages as low as 0.6V. It has an active-high (ENOUT) logic output. This level shifting property of the ADM0185 ensures compatibility with enable input logic levels of different regulators and converters.
- Provide time delays between enabling of regulators
- Can be cascaded with regulators for multiple supply sequencing
- Capacitor adjustable time delay
- 15μA Low power consumption
- High voltage (up to 22V) enable input
- Power supply monitoring from 0.6V
计算机和计算机周边, 便携式器材, 通信与网络, 电源管理
