Supervisors. TPS3809J25 Datasheet

TPS3809J25 Datasheet PDF


Part

TPS3809J25

Description

3-Pin Supply Voltage Supervisors

Manufacture

etcTI

Page 13 Pages
Datasheet
Download TPS3809J25 Datasheet


TPS3809J25 Datasheet
TPS3809J25, TPS3809L30
TPS3809K33, TPS3809I50
www.ti.com
SLVS228C – AUGUST 1999 – REVISED OCTOBER 2013
3-Pin Supply Voltage Supervisors
Check for Samples: TPS3809J25, TPS3809L30, TPS3809K33, TPS3809I50
FEATURES
1
2 3-Pin SOT-23 Package
• Supply Current of 9 μA (Typical)
• Precision Supply Voltage Monitor
2.5 V, 3 V, 3.3 V, 5 V
• Pin-For-Pin Compatible With MAX 809
• Temperature Range: –40°C to +85°C
APPLICATIONS
• Applications Using DSPs, Microcontrollers, or
Microprocessors
• Wireless Communication Systems
• Portable/Battery-Powered Equipment
• Programmable Controls
• Intelligent Instruments
• Industrial Equipment
• Notebook/Desktop Computers
• Automotive Systems
DBV PACKAGE
TOP VIEW)
GND
1
3 VDD
RESET
2
DESCRIPTION
The TPS3809 family of supervisory circuits provides
circuit initialization and timing supervision, primarily
for DSPs and processor-based systems.
During power-on, RESET is asserted when the
supply voltage VDD becomes higher than 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 has risen above the
threshold voltage VIT. When the supply voltage drops
below the threshold voltage VIT, the output becomes
active (low) again. No external components are
required. All the devices of this family have a fixed
sense-threshold voltage VIT set by an internal voltage
divider.
The product spectrum 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. The TPS3809 devices
are characterized for operation over a temperature
range of –40°C to 85°C.
TYPICAL APPLICATION
TPS76333
3.3 V
5 V IN
OUT
GND
VDD
VDD
TPS3809K33
RESET
GND
TMS320LC54x
RESET
GND
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 1999–2013, Texas Instruments Incorporated

TPS3809J25 Datasheet
TPS3809J25, TPS3809L30
TPS3809K33, TPS3809I50
SLVS228C – AUGUST 1999 – REVISED OCTOBER 2013
www.ti.com
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
TA
–40°C to 85°C
AVAILABLE OPTIONS(1)
DEVICE NAME
THRESHOLD VOLTAGE
TPS3809J25DBVR
TPS3809J25DBVT
2.25 V
TPS3809L30DBVR
TPS3809L30DBVT
2.64 V
TPS3809K33DBVR
TPS3809K33DBVT
2.93 V
TPS3809I50DBVR
TPS3809I50DBVT
4.55 V
MARKING
PCZI
PDAI
PDBI
PDCI
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this data sheet, or visit the
device product folder at www.ti.com.
FUNCTION/TRUTH TABLE, TPS3809
VDD>VIT
0
1
RESET
L
H
ORDERING INFORMATION
TPS380 9 J 25 DBV R
Reel
Package
Nominal Supply Voltage
Nominal Threshold Voltage
Functionality
Family
ABSOLUTE MAXIMUM RATINGS(1)(2)
Over operating free-air temperature range (unless otherwise noted).
Supply voltage, VDD
All other pins
Maximum low-output current, IOL
Maximum high-output current, IOH
Input-clamp current, IIK (VI < 0 or VI > VDD)
Output-clamp current, IOK (VO < 0 or VO > VDD)
Continuous total power dissipation
Operating free-air temperature range, TA
Storage temperature range, Tstg
UNIT
7V
–0.3 V to 7 V
5 mA
–5 mA
±20 mA
±20 mA
See Dissipation Rating Table
–40°C to 85°C
–65°C to 150°C
(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating
conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) All voltage values are with respect to GND. For reliable operation, the device should not be operated at 7 V for more than t = 1000h
continuously.
DISSIPATION RATINGS
PACKAGE
TA < 25°C
POWER RATING
DBV
437 mW
DERATING FACTOR
ABOVE TA < 25°C
3.5 mW/°C
TA = 70°C
POWER RATING
280 mW
TA = 85°C
POWER RATING
227 mW
RECOMMENDED OPERATING CONDITIONS
Supply voltage, VDD
RESET current sink during startup
Operating free-air temperature range, TA
MIN
MAX
UNIT
2 6V
50 µA
–40 +85 °C
2 Submit Documentation Feedback
Copyright © 1999–2013, Texas Instruments Incorporated
Product Folder Links: TPS3809J25 TPS3809L30 TPS3809K33 TPS3809I50


Features Datasheet pdf TPS3809J25, TPS3809L30 TPS3809K33, TPS38 09I50 www.ti.com SLVS228C – AUGUST 1999 – REVISED OCTOBER 2013 3-Pin Su pply Voltage Supervisors Check for Samp les: TPS3809J25, TPS3809L30, TPS3809K33 , TPS3809I50 FEATURES 1 •2 3-Pin SOT -23 Package • Supply Current of 9 μA (Typical) • Precision Supply Voltage Monitor 2.5 V, 3 V, 3.3 V, 5 V • Pin -For-Pin Compatible With MAX 809 • Te mperature Range: –40°C to +85°C AP PLICATIONS • Applications Using DSPs, Microcontrollers, or Microprocessors Wireless Communication Systems • P ortable/Battery-Powered Equipment • P rogrammable Controls • Intelligent In struments • Industrial Equipment • Notebook/Desktop Computers • Automoti ve Systems DBV PACKAGE TOP VIEW) GND 1 3 VDD RESET 2 DESCRIPTION The TPS 3809 family of supervisory circuits pro vides circuit initialization and timing supervision, primarily for DSPs and pr ocessor-based systems. During power-on, RESET is asserted when the supply voltage VDD becomes higher than 1.1 V. Thereafter, the supervis.
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