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TLV803, TLV853, TLV863
SBVS157...
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TLV803, TLV853, TLV863
SBVS157C – APRIL 2011 – REVISED SEPTEMBER 2015
TLV8x3 3-Pin
Voltage Supervisors with Active-Low, Open-Drain Reset
1 Features
1 3-Pin SOT23 Package Supply Current: 9 µA (Typical) Precision Supply
Voltage Monitor:
2.5 V, 3 V, 3.3 V, 5 V Power-On Reset Generator with
Fixed Delay Time of 200 ms Pin-for-Pin Compatible with MAX803 Temperature Range: –40°C to +125°C Open-Drain, RESET Output
2 Applications
DSPs, Microcontrollers, and Microprocessors Portable and Battery-Powered Equipment Set-Top Boxes Servers Appliances Programmable Controls Intelligent Instruments Industrial Equipment Automotive Systems
3 Description
The TLV8x3 family of supervisory circuits provides circuit initialization and timing supervision, primarily for DSPs and processor-based systems.
The TLV803, TLV853, and TLV863 are functionally equivalent. The TLV853 and TLV863 provide an alternate pinout of the TLV803.
During power on, RESET asserts when the supply
voltage (VDD) exceeds 1.1 V. Thereafter, the supervisory circuit monitors VDD and keeps RESET active as long as VDD remains below the threshold
voltage VIT. 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 exceeds the threshold
voltage, VIT. When the supply
voltage drops below the VIT threshold
voltage, t...