TI TLV809L30DBVR

The TLV809 family of supervisory circuits provides circuit initialization and timing supervision, primarily for digital signal processors (DSPs) and processor-based systems. During power-on, RESET is asserted when the supply voltage (VDD) becomes greater than 1.1 V. Thereafter, the supervisory circuit monitors VDD and keeps RESET active as long as VDD remains below the threshold voltage, VΠ. An internal timer delays the return of the output to the inactive state (high) to ensure proper system reset. The delay time (td(typ)= 200 ms) starts after VDD rises above the threshold voltage, VΠ. When the supply voltage drops below the VΠ threshold voltage, the output becomes active (low) again. No external components are required. All devices in this family have a fixed sense-threshold voltage (VΠ) set by an internal voltage divider. This product family is designed for supply voltages of 2.5 V, 3 V, 3.3 V, and 5 V. The circuits are available in a 3-pin SOT-23 package. The TLV809 devices are characterized for operation over a temperature range of -40°C to +85°C.

• Precision Supply Voltage Monitor: 2.5 V, 3 V, 3.3 V, 5 V
• Power-On Reset Generator with a Fixed Delay Time of 200 ms
• Supply Current: 9 μA (Typical)
• Temperature Range: -40°C to +85°C
• 3-Pin SOT-23 Package
• Pin-for-Pin Compatible with the MAX809

• DSPs, Microcontrollers, and Microprocessors
• Wireless Communication Systems
• Portable and Battery-Powered Equipment
• Programmable Controls
• Intelligent Instruments
• Industrial Equipment
• Notebook and Desktop Computers
• Automotive Systems