TPS3890
Overview
The TPS3890 is a precision voltage supervisor with low-quiescent current that monitors system voltages as low as 1.15 V, asserting an open-drain RESET signal when the SENSE voltage drops below a preset threshold or when the manual reset (MR) pin drops to a logic low. The RESET output remains low for the user-adjustable delay time after the SENSE voltage and manual reset (MR) return above the respective thresholds.
- 1 Power-On-Reset (POR) Generator with Adjustable Delay Time: 40 μs to 30 s
- Very Low Quiescent Current: 2.1 μA (Typical)
- High Threshold Accuracy: 1% (max)
- Precision Hysteresis
- Fixed and Adjustable Threshold Voltages: - Fixed Thresholds for Standard Rails: 1.2 V to 3.3 V - Adjustable Down to 1.15 V
- Manual Reset (MR) Input
- Open-Drain RESET Output
- Temperature Range: -40°C to +125°C
- Package: 1.5-mm × 1.5-mm WSON
