Monitor. TPS3839 Datasheet

TPS3839 Datasheet PDF


Part Number

TPS3839

Description

Supply Voltage Monitor

Manufacture

etcTI

Total Page 30 Pages
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TPS3839 Datasheet
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TPS3831, TPS3839
SBVS193D – JUNE 2012 – REVISED JULY 2015
TPS383x 150-nA, Ultralow Power, Supply Voltage Monitor
1 Features
1 Ultralow Supply Current: 150 nA (Typical)
• Operating Supply Voltage: 0.9 V to 6.5 V
• Valid Reset for VDD > 0.6 V
• Push-Pull RESET Output
• Factory-Trimmed Reset Threshold Voltages
• Temperature Range: –40°C to 85°C
• Packages: 1-mm × 1-mm X2SON or 3-Pin SOT23
2 Applications
• Portable and Battery-Powered Equipment
• Metering
• Industrial Equipment
• Cell Phones
• Glucose Monitors
• Tablets
• Wearables
3 Description
The TPS3831 and TPS3839 devices (both referred to
as TPS383x) are ultralow current (150 nA, typical),
voltage supervisory circuits that monitor a single
voltage. Both devices initiate an active-low reset
signal whenever the VDD supply voltage drops below
the factory-trimmed reset threshold voltage. The reset
output remains low for 200 ms (typical) after the VDD
voltage rises above the threshold voltage and
hysteresis. These devices are designed to ignore fast
transients on the VDD pin. The TPS3831 device
includes a manual reset input that forces RESET low
when MR is low.
The ultralow current consumption of 150 nA makes
these voltage supervisors ideal for use in low-power
and portable applications. The TPS383x devices are
specified to have the correct output logic state for
supply voltages down to 0.6 V.
The TPS383x devices feature precision factory-
trimmed threshold voltages and extremely low-power
operation. The TPS3831 device is available in a 4-
pin, 1-mm × 1-mm (DQN) X2SON package. The
TPS3839 device is available in a 3-pin SOT23 (DBZ)
package or a 4-pin, 1-mm × 1-mm (DQN) X2SON
package.
Device Information(1)
PART NUMBER
PACKAGE
PACKAGE SIZE
(NOM)
TPS3831
X2SON (4)
1.00 mm x 1.00 mm
TPS3839
SOT-23 (3)
X2SON (4)
2.92 mm x 2.37 mm
1.00 mm x 1.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
TPS3831
Only
Typical Application Circuit
3.3 V
C1
0.1 mF
VDD
TPS383xK33
MR RESET
GND
Microprocessor
RST
Supply Current vs Temperature
200
190
VDD = 1.2 V
VDD = 3.3 V
180 VDD = 5.0 V
170 VDD = 6.5 V
160
150
140
130
120
110
100
−40
−15 10
35
Temperature (°C)
60
85
G001
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.

TPS3839 Datasheet
TPS3831, TPS3839
SBVS193D – JUNE 2012 – REVISED JULY 2015
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Device Options....................................................... 4
6 Pin Configuration and Functions ......................... 5
7 Specifications......................................................... 6
7.1 Absolute Maximum Ratings ...................................... 6
7.2 ESD Ratings.............................................................. 6
7.3 Recommended Operating Conditions....................... 6
7.4 Thermal Information .................................................. 6
7.5 Electrical Characteristics........................................... 7
7.6 Timing Requirements ................................................ 8
7.7 Typical Characteristics .............................................. 9
8 Detailed Description ............................................ 11
8.1 Overview ................................................................. 11
8.2 Functional Block Diagram ....................................... 11
8.3 Feature Description................................................. 11
8.4 Device Functional Modes........................................ 12
9 Applications and Implementation ...................... 13
9.1 Application Information............................................ 13
9.2 Typical Application .................................................. 13
10 Power Supply Recommendations ..................... 15
11 Layout................................................................... 15
11.1 Layout Guidelines ................................................. 15
11.2 Layout Example .................................................... 15
12 Device and Documentation Support ................. 16
12.1 Device Support...................................................... 16
12.2 Documentation Support ........................................ 16
12.3 Related Links ........................................................ 16
12.4 Community Resources.......................................... 16
12.5 Trademarks ........................................................... 16
12.6 Electrostatic Discharge Caution ............................ 16
12.7 Glossary ................................................................ 17
13 Mechanical, Packaging, and Orderable
Information ........................................................... 17
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision C (February 2015) to Revision D
Page
• Changed µA to nA in document title....................................................................................................................................... 1
• Added TPS3839G25 to document ......................................................................................................................................... 1
• Changed Applications section: moved Metering bullet to second in list, changed Tablets bullet, added Wearables bullet .. 1
• Changed first paragraph of Description section .................................................................................................................... 1
• Changed Device Information table: changed Package Size column heading and value of SOT-23 row ............................. 1
• Added TPS3839G25 row to Device Options table ................................................................................................................ 4
• Changed Thermal Information table ...................................................................................................................................... 6
• Changed VIT– and Vhys parameters in Electrical Characteristics table: changed test conditions, added TPS3839G25 rows 7
Changes from Revision B (April 2013) to Revision C
Page
• Added ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation
section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and
Mechanical, Packaging, and Orderable Information section ................................................................................................. 1
• Changed title of data sheet ................................................................................................................................................... 1
• Changed Operating Supply Voltage bullet from 0.6 V to 0.9 V.............................................................................................. 1
• Changed last sentence of Description section ...................................................................................................................... 1
• Changed front page figure ..................................................................................................................................................... 1
• Added MR parameter to Absolute Maximum Ratings ........................................................................................................... 6
• Changed condition statement for Electrical Characteristics .................................................................................................. 7
• Changed V(VO) parameter symbol to VPOR ............................................................................................................................. 7
• Changed Figure 1................................................................................................................................................................... 8
• Changed Functional Block Diagram; added hysteresis symbol to op amp .......................................................................... 11
• Deleted Typical Application Circuit figure ............................................................................................................................. 13
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Features Datasheet pdf Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS3831, TPS3839 SBVS193D JUNE 2012 – REVISED JULY 2015 TPS38 3x 150-nA, Ultralow Power, Supply Volta ge Monitor 1 Features •1 Ultralow Su pply Current: 150 nA (Typical) • Oper ating Supply Voltage: 0.9 V to 6.5 V Valid Reset for VDD > 0.6 V • Push- Pull RESET Output • Factory-Trimmed R eset Threshold Voltages • Temperature Range: –40°C to 85°C • Packages: 1-mm × 1-mm X2SON or 3-Pin SOT23 2 Ap plications • Portable and Battery-Pow ered Equipment • Metering • Industr ial Equipment • Cell Phones • Gluco se Monitors • Tablets • Wearables 3 Description The TPS3831 and TPS3839 d evices (both referred to as TPS383x) ar e ultralow current (150 nA, typical), v oltage supervisory circuits that monito r a single voltage. Both devices initia te an active-low reset signal whenever the VDD supply voltage drops below the factory-trimmed reset threshold voltage. The reset output remains low for 200 ms (typical) after the.
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