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TLV809 Datasheet

3-Pin Supply Voltage Supervisor

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TLV809
SLVSA03D – JUNE 2010 – REVISED MARCH 2016
TLV809
3-Pin Supply Voltage Supervisor
1 Features
1 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
2 Applications
• DSPs, Microcontrollers, and Microprocessors
• Wireless Communication Systems
• Portable and Battery-Powered Equipment
• Programmable Controls
• Intelligent Instruments
• Industrial Equipment
• Notebook and Desktop Computers
• Automotive Systems
3 Description
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, 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 rises above the threshold
voltage, VIT. When the supply voltage drops below
the VIT threshold voltage, the output becomes active
(low) again. No external components are required. All
devices in this family have a fixed sense-threshold
voltage (VIT) set by an internal voltage divider.
The TLV803 has an active-low, push-pull RESET
output. See the TLV803 for an open-drain RESET
output and the TLV810 for a push-pull, active-high
RESET output.
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.
Typical Application
3.3-V LDO
5 V IN
3.3 V
OUT
GND
VDD
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TLV809
SOT-23 (3), DBV
SOT-23 (3), DBZ
2.90 mm × 1.60 mm
2.92 mm × 1.30 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
VDD
TLV809K33
RESET
GND
DSP, FPGA, ASIC
RESET
GND
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.




etcTI

TLV809 Datasheet Preview

TLV809 Datasheet

3-Pin Supply Voltage Supervisor

No Preview Available !

TLV809
SLVSA03D – JUNE 2010 – REVISED MARCH 2016
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Voltage Options ..................................................... 3
6 Pin Configuration and Functions ......................... 3
7 Specifications......................................................... 3
7.1 Absolute Maximum Ratings ...................................... 3
7.2 ESD Ratings.............................................................. 4
7.3 Recommended Operating Conditions....................... 4
7.4 Thermal Information .................................................. 4
7.5 Electrical Characteristics........................................... 4
7.6 Timing Requirements ................................................ 5
7.7 Switching Characteristics .......................................... 5
7.8 Typical Characteristics .............................................. 6
8 Detailed Description .............................................. 7
8.1 Overview ................................................................... 7
8.2 Functional Block Diagram ......................................... 7
8.3 Feature Description................................................... 7
8.4 Device Functional Modes.......................................... 7
9 Application and Implementation .......................... 8
9.1 Application Information.............................................. 8
9.2 Typical Application .................................................... 9
10 Power Supply Recommendations ..................... 10
11 Layout................................................................... 10
11.1 Layout Guidelines ................................................. 10
11.2 Layout Example .................................................... 10
12 Device and Documentation Support ................. 11
12.1 Documentation Support ........................................ 11
12.2 Community Resources.......................................... 11
12.3 Trademarks ........................................................... 11
12.4 Electrostatic Discharge Caution ............................ 11
12.5 Glossary ................................................................ 11
13 Mechanical, Packaging, and Orderable
Information ........................................................... 11
4 Revision History
Changes from Revision C (February 2012) to Revision D
Page
• Added Device Information table, Pin Configuration and Functions section, ESD Ratings table, Overview section,
Feature Description section, Device Functional Modes section, Application and Implementation section, Power
Supply Recommendations section, Layout section, Device and Documentation Support section, and Mechanical,
Packaging, and Orderable Information section ...................................................................................................................... 1
• Deleted pinout drawing from page 1 ..................................................................................................................................... 1
• Changed Description section: added third paragraph and changed section wording for clarity ............................................ 1
• Changed Voltage Options table: changed title, deleted duplicated data already in POA ..................................................... 3
• Deleted soldering temperature parameter from Absolute Maximum Ratings table ............................................................... 3
• Changed IDD parameter test conditions in Electrical Characteristics table ............................................................................ 4
Changes from Revision B (September 2010) to Revision C
Page
• Changed TLV809L30 DBZ ordering information column in Package/Ordering Information table.......................................... 3
• Changed TLV809K33 DBZ ordering information column in Package/Ordering Information table ......................................... 3
• Changed first TLV809I50 DBZ ordering information entry in Package/Ordering Information table ....................................... 3
Changes from Revision A (July 2010) to Revision B
Page
• Updated document format to current standards..................................................................................................................... 1
• Added DBZ package to pinout figure ..................................................................................................................................... 1
• Added DBZ package to Package/Ordering Information table ................................................................................................ 3
• Added Thermal Information table ........................................................................................................................................... 3
• Changed Figure 3................................................................................................................................................................... 6
2 Submit Documentation Feedback
Product Folder Links: TLV809
Copyright © 2010–2016, Texas Instruments Incorporated


Part Number TLV809
Description 3-Pin Supply Voltage Supervisor
Maker etcTI
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