TPS3801-xx

Features:

` Small, 5-Pin SC-70 (SOT-323) Package
` Supply Current of 9 µA
` Power-On Reset Generator With Fixed Delay  Time
    -TPS3800 = 100 ms
    - TPS3801 = 200 ms
    - TPS3802 = 400 ms
` Precision Supply Voltage Monitor 1.8 V, 2.5 V,
    2.7 V, 3 V, 3.3 V, 5 V, and Adjustable
` Manual Reset Input (Except TPS3801-01)
` Temperature Range: -40 to 85


Application

· Applications Using DSPs, Microcontrollers, or
    Microprocessors
· Wireless Communication Systems
· Portable/Battery-Powered Equipment
· Programmable Controls
· Intelligent Instruments
· Industrial Equipment
· Notebook/Desktop Computers
· Automotive Systems 


Pinout




Specifications

	UNIT
Supply voltage, VDD	7 V
All other pins	-0.3 V to 7 V
Maximum low-output current, IOL	5 mA
Maximum high-output current, IOH	-5 mA
Input-clamp current, IIK (VI < 0 or VI > VDD)	±20 mA
Output-clamp current, IOK (VO < 0 or VO > VDD)	±20 mA
Operating junction temperature range, TJ (3)	-40°C to 85°C
Storage temperature range, Tstg	-65°C to 150°C
Soldering temperature (3 seconds)	260°

Description

The TPS380x family of supervisory circuits monitor supply voltages to provide circuit initialization and timing supervision, primarily for DSPs and other pro-cessor-based systems.

These  TPS380x devices assert a push-pull RESET signal when the SENSE (adjustable version) or V_DD (fixed version) drops below a preset threshold. The RESET output remains asserted for the factory programmed delay time after the SENSE or V_DD return above its threshold.

The TPS380x devices, except the TPS3801-01, incor-porate a manual reset input ( MR ). A low level at MR causes RESET to become active.

The TPS380x uses a precision reference to achieve an overall threshold accuracy of 2% - 2.5%. These devices are available in a 5-pin SC-70 package, which is only about half the size of a 5-pin SOT-23 package.

The TPS380x devices are fully specified over a tem-perature range of -40 to 85