FEATURES
DSingle Voltage Detector (TPS3803):
Adjustable/1.5 V
DDual Voltage Detector (TPS3805):
Adjustable/3.3 V
DHigh ±1.5% Threshold Voltage Accuracy
DSupply Current: 3 µA Typical at VDD = 3.3 V
DPush/Pull Reset Output (TPS3805) Open-Drain
Reset Output (TPS3803)
DTemperature Range: −40°C to +85°C
D5-Pin SC−70 Package
DESCRIPTION
The TPS3803 and TPS3805 families of supervisory
circuits provide circuit initialization and timing supervision,
primarily for DSPs and processor-based systems.
The TPS3803G15 device has a fixed-sense threshold
voltage VIT set by an internal voltage divider, whereas the
TPS3803−01 has an adjustable SENSE input that can be
configured by two external resistors. In addition to the fixed
sense threshold monitored at VDD, the TPS3805 devices
provide a second adjustable SENSE input. RESET is
asserted in case any of the two voltages drops below VIT.
During power on, RESET is asserted when supply voltage
VDD becomes higher than 0.8 V. Thereafter, the
supervisory circuit monitors VDD (and/or SENSE) and
keeps RESET active as long as VDD or SENSE remains
below the threshold voltage VIT. As soon as VDD (SENSE)
rises above the threshold voltage VIT, RESET is
deasserted again. The product spectrum is designed for
1.5 V, 3.3 V, and adjustable supply voltages. The devices
are available in a 5-pin SC-70 package. The TPS3803 and
TPS3805 devices are characterized for operation over a
temperature range of −40°C to +85°C.
APPLICATIONS
DApplications Using DSPs, Microcontrollers,
or Microprocessors
DWireless Communication Systems
DPortable/Battery-Powered Equipment
DProgrammable Controls
DIntelligent Instruments
DIndustrial Equipment
DNotebook/Desktop Computers
DAutomotive Systems
3
2
4
5
DCK PACKAGE
(Top View)
1
NC
GND
RESET
(1) NC = No Connection on TPS3803G15
VDD
SENSE
NC(1)
TPS3803−01, TPS3803G15, TPS3805
Typical Operating Circuit
TPS3805H33 TMS320VC5416
RESETVDD
SENSE GND
DVDD CVDD
RESET
GND
3.3 V1.6 V
R1
R2
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TPS3803−01
TPS3803G15
TPS3805H33
SLVS392A − JULY 2001 − REVISED JUNE 2007
VOLTAGE
DETECTOR
         
          
 !     !   
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Copyright 2001−2007, Texas Instruments Incorporated
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.
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SLVS392A − JULY 2001 − REVISED JUNE 2007
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2
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible
to damage because very small parametric changes could cause the device not to meet its published specifications.
PACKAGE INFORMATION
TA
DEVICE NAME
THRESHOLD VOLTAGE
MARKING
T
A
DEVICE NAME
VDD SENSE
MARKING
TPS3803−01DCKR(1) NA 1.226 V AWG
−40_C to +85_CTPS3803G15DCKR(1) 1.40 V NA AWI
−40 C to +85 C
TPS3805H33DCKR(1) 3.05 V 1.226 V AWK
(1) The DCKR passive indicates tape and reel containing 3000 parts.
ORDERING INFORMATION
TPS380 3 G 15 DCK R
Reel
Package
Nominal Supply Voltage
Nominal Threshold Voltage
Functionality
Family
Function/Truth Tables
TPS3803-01 TPS3803G15
SENSE > VIT RESET VDD > VIT RESET
0 L 0 L
1 H 1 H
TPS3805H33
VDD > VIT SENSE > VIT RESET
0 0 L
01L
10L
1 1 H
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3
FUNCTIONAL BLOCK DIAGRAM
_
+
R1
R2
Reference
Voltage
of 1.215 V
TPS3803G15
RESET
VDD
GND
_
+
Reference
Voltage
of 1.226 V
TPS3803−01
RESET
VDD
GND
SENSE
Device
Supply Voltage
_
+
_
+
R1
R2
VDD
GND
Reference
Voltage
of 1.226 V
SENSE
RESET
TPS3805
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4
TIMING REQUIREMENTS
V
DD
or SENSE
VIT + Vhys
VIT
0.8 V
RESET
= Undefined
Terminal Functions
TERMINAL
I/O
DESCRIPTION
NAME NO.
I/O
DESCRIPTION
GND 2 I Ground
RESET 3 O Active-low reset output (TPS3803—open−drain, TPS3805—push/pull)
SENSE 5 I Adjustable sense input
NC 1 No internal connection
NC (TPS3803G15) 5No internal connection
VDD 4 I Input supply voltage, fixed sense input for TPS3803G15 and TPS3805
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5
ABSOLUTE MAXIMUM RATINGS(1)
Over operating free-air temperature range, unless otherwise noted.
Supply voltage, VDD(2) +7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
All other pins(2) −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)±10 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output clamp current, IOK (VO < 0 or VO > VDD)±10 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous total power dissipation See Dissipation Rating Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, TA−40°C to +85°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, Tstg −65°C to +150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Soldering temperature +260°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 continuously operated at 7 V for more than
t = 1000 h.
DISSIPATION RATING TABLE
PACKAGE TA < +25°C
POWER RATING DERATING FACTOR
ABOVE TA = +25°CTA = +70°C
POWER RATING TA = +85°C
POWER RATING
DCK 321 mW 2.6 mW/°C206 mW 167 mW
RECOMMENDED OPERATING CONDITIONS MIN MAX UNIT
Supply voltage, VDD 1.3 6 V
Input voltage, VI0 VDD + 0.3 V
Operating free-air temperature range, TA−40 85 °C
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6
ELECTRICAL CHARACTERISTICS
Over recommended operating free-air temperature range, unless otherwise noted.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
VDD = 1.5 V, IOH = −0.5 mA
V
OH
High-level output voltage (TPS3805 only) VDD = 3.3 V, IOH = −1.0 mA 0.8 x V
DD
V
VOH
VDD = 6 V, IOH = −1.5 mA
0.8 x VDD
V
VDD = 1.5 V, IOL = 1.0 mA
V
OL
Low-level output voltage VDD = 3.3 V, IOL = 2 mA 0.3 V
VOL
VDD = 6 V, IOL = 3 mA
0.3
V
Power-up reset voltage(1)
VIT > 1.5 V, TA = 25°C 0.8 V
Power-up reset voltage
(1)
VIT ≤ 1.5 V, TA = 25°C 1.0 V
Negative-going input threshold
SENSE 1.208 1.226 1.244
V
IT
Negative-going input threshold
voltage(2)
TPS3803G15 T
A
= −40°C to +85°C1.379 1.4 1.421 V
VIT
voltage(2)
TPS3805H33
TA = −40 C to +85 C
3.004 3.05 3.096
V
Vhys
1.2 V < VIT < 2.5 V 15
mV
Vhys Hysteresis 2.5 V < VIT < 3.5 V 30 mV
IIInput current SENSE −25 25 nA
IOH High-level output current at RESET Open drain only VDD = VIT + 0.2V, VOH = VDD 300 nA
TPS3803−01 2 4
IDD
Supply current
TPS3805,
TPS3803G15 VDD = 3.3 V, output unconnected 3 5
A
IDD Supply current TPS3803−01 2 4 µA
TPS3805,
TPS3803G15 VDD = 6 V, output unconnected 4 6
CIInput capacitance VI = 0 V to VDD 1 pF
(1) The lowest supply voltage at which RESET (VOL(max) = 0.2 V, IOL = 50 µA) becomes active. tr(VDD) ≥15 µs/V.
(2) To ensure the best stability of the threshold voltage, place a bypass capacitor (ceramic, 0.1 µF) near the supply terminals.
TIMING REQUIREMENTS
AT RL = 1 MΩ, CL = 50 PF, TA = −40°C TO +85°C.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
tw
Pulse width
At VDD
VIH = 1.05 x VIT, VIL = 0.95 x VIT
5.5
s
twPulse width At SENSE VIH = 1.05 x VIT, VIL = 0.95 x VIT 5.5 µs
SWITCHING CHARACTERISTICS
AT RL = 1 MΩ, CL = 50 PF, TA = −40°C TO +85°C.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
tPHL
Propagation (delay) time,
VDD to RESET delay
V = 1.05 x V ,
5
100
tPHL
Propagation (delay) time,
high-to-low-level output SENSE to RESET delay VIH = 1.05 x VIT,
VIL = 0.95 x VIT
5 100
s
tPLH
Propagation (delay) time,
VDD to RESET delay
IH IT
V
IL
= 0.95 x V
IT
5
100
µs
tPLH
Propagation (delay) time,
low-to-high-level output SENSE to RESET delay 5 100
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7
TYPICAL CHARACTERISTICS
Figure 1
3
2
1
00 0.5 1 1.5 2 2.5 3
4
5
TPS3805H33
SUPPLY CURRENT
vs
SUPPLY VOLTAGE
6
3.5 4 4.5 5 5.5 6
DD
I Supply Current − −Aµ
VDD − Supply Voltage − V
SENSE = GND
RESET = Open
85°C
0°C
25°C
−40°C
Figure 2
1.5
1
0.5
00 0.5 1 1.5 2 2.5 3
2
2.5
TPS3803−01
SUPPLY CURRENT
vs
SUPPLY VOLTAGE
3
3.5 4 4.5 5 5.5 6
DD
I Supply Current − −Aµ
VDD − Supply Voltage − V
SENSE = GND
RESET = Open
85°C
0°C
−40°C
25°C
Figure 3
1.00
0.80
0.60
0.40
012345
1.20
1.40
LOW-LEVEL OUTPUT VOLTAGE
vs
LOW-LEVEL OUTPUT CURRENT
1.60
IOL − Low-Level Output Current − mA
OL
V − Low-Level Output Voltage − V
0.20
0
VDD = 1.5 V
V(SENSE) = Low
85°C
0°C
25°C
−40°C
Figure 4
0.35
0.30
0.25
0.20
0 0.5 1 1.5 2 2.5 3
0.40
0.45
LOW-LEVEL OUTPUT VOLTAGE
vs
LOW-LEVEL OUTPUT CURRENT
0.50
0.15
0.10
0.05
0
OL
V − Low-Level Output Voltage − V
IOL − Low-Level Output Current − mA
85°C
0°C
25°C
−40°C
VDD = 1.5 V
V(SENSE) = Low
(Expanded View)
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8
TYPICAL CHARACTERISTICS (continued)
Figure 5
2
1.5
1
0.5
0 5 10 15 20 25 30
2.5
3
LOW-LEVEL OUTPUT VOLTAGE
vs
LOW-LEVEL OUTPUT CURRENT
3.5
35 40 45 50
OL
V − Low-Level Output Voltage − V
IOL − Low-Level Output Current − mA
85°C
0°C
25°C
−40°C
VDD = 6 V
V(SENSE) = Low
0
Figure 6
0.7
0.6
0.5
0.4
02 4 6 81012
0.8
0.9
1
14 16 18 20
LOW-LEVEL OUTPUT VOLTAGE
vs
LOW-LEVEL OUTPUT CURRENT
OL
V − Low-Level Output Voltage − V
IOL − Low-Level Output Current − mA
85°C
0°C
25°C
−40°C
VDD = 6 V
V(SENSE) = Low
0.3
0.2
0.1
0
(Expanded View)
Figure 7
2.75
2.25
2
1.75
−14 −12 −10 −8 −6 −4 −2
3
3.25
TPS3805H33
HIGH-LEVEL OUTPUT VOLTAGE
vs
HIGH-LEVEL OUTPUT CURRENT
3.5
0
V
OH
− High-Level Output Voltage − V
IOH − High-Level Output Current − mA
1.5
2.5
0°C
25°C
−40°C
VDD = 3.3 V
V(SENSE) = High
85°C
Figure 8
3
2.9
2.8
2.7
−5 −4 −3 −2 −1 0
3.1
3.2
3.3
TPS3805H33
HIGH-LEVEL OUTPUT VOLTAGE
vs
HIGH-LEVEL OUTPUT CURRENT
VOH − High-Level Output Voltage − V
IOH − High-Level Output Current − mA
2.6
2.5
0°C
25°C
−40°C
VDD = 3.3 V
V(SENSE) = High
85°C
(Expanded View)
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9
TYPICAL CHARACTERISTICS (continued)
Figure 9
5
4.5
4
3.5
−4 −3 −2 −1
5.5
6
TPS3805H33
HIGH-LEVEL OUTPUT VOLTAGE
vs
HIGH-LEVEL OUTPUT CURRENT
V
OH
− High-Level Output Voltage − V
IOH − High-Level Output Current − mA
30
85°C
0°C
25°C
−40°C
VDD = 6 V
V(SENSE) = High
Figure 10
5.4
5.2
5
4.8
−14 −12 −10 −8 −6 −4
5.6
5.8
6
TPS3805H33
HIGH-LEVEL OUTPUT VOLTAGE
vs
HIGH-LEVEL OUTPUT CURRENT
VOH − High-Level Output Voltage − V
IOH − High-Level Output Current − mA
4.6 −2 0
85°C
0°C
25°C
−40°C
VDD = 6 V
V(SENSE) = High
(Expanded View)
VIT − Normalized Input Threshold Voltage VIT(TA) / VIT(25°C)
Figure 11
1.0005
1.0000
0.9995
0.9990
−40 −20 0 20 40 60 80
1.0010
1.0015
TPS3803−01
NORMALIZED INPUT THRESHOLD VOLTAGE
vs
FREE-AIR TEMPERATURE AT SENSE
1.0020
TA − Free-Air Temperature at SENSE − °C
0.9985
0.9980
VDD = 6 V
RESET = 100 kΩ to VDD
Figure 12
7
6
5
4
0 0.1 0.2 0.3 0.4 0.5 0.6
8
9
MINIMUM PULSE DURATION AT VDD
vs
VDD THRESHOLD OVERDRIVE VOLTAGE
10
0.7 0.8 0.9 1
3
2
1
0
VDD − Threshold Overdrive Voltage − V
tw − Minimum Pulse Duration at VDD − µs
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TYPICAL CHARACTERISTICS (continued)
Figure 13
7
6
5
4
0 0.1 0.2 0.3 0.4 0.5 0.6
8
9
MINIMUM PULSE DURATION AT SENSE
vs
SENSE THRESHOLD OVERDRIVE VOLTAGE
10
0.7 0.8 0.9 1
3
2
1
0
SENSE − Threshold Overdrive Voltage − V
tw − Minimum Pulse Duration at SENSE − µs
Revision History
DATE REV PAGE SECTION DESCRIPTION
6/07
A
Front Page —Updated front page.
6/07
A
3 — Functional block diagram change.
NOTE:Page numbers for previous revisions may differ from page numbers in the current version.
PACKAGING INFORMATION
Orderable Device Status (1) Package
Type Package
Drawing Pins Package
Qty Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3)
TPS3803-01DCKR ACTIVE SC70 DCK 5 3000 Green (RoHS &
no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
TPS3803-01DCKRG4 ACTIVE SC70 DCK 5 3000 Green (RoHS &
no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
TPS3803G15DCKR ACTIVE SC70 DCK 5 3000 Green (RoHS &
no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
TPS3803G15DCKRG4 ACTIVE SC70 DCK 5 3000 Green (RoHS &
no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
TPS3805H33DCKR ACTIVE SC70 DCK 5 3000 Green (RoHS &
no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
TPS3805H33DCKRG4 ACTIVE SC70 DCK 5 3000 Green (RoHS &
no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in
a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check
http://www.ti.com/productcontent for the latest availability information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements
for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered
at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and
package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS
compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame
retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)
(3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder
temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is
provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the
accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take
reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on
incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited
information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI
to Customer on an annual basis.
OTHER QUALIFIED VERSIONS OF TPS3803-01, TPS3803G15, TPS3805H33 :
•Automotive: TPS3803-01-Q1,TPS3803G15-Q1,TPS3805H33-Q1
•Enhanced Product: TPS3803-01-EP,TPS3803G15-EP,TPS3805H33-EP
NOTE: Qualified Version Definitions:
•Automotive - Q100 devices qualified for high-reliability automotive applications targeting zero defects
•Enhanced Product - Supports Defense, Aerospace and Medical Applications
PACKAGE OPTION ADDENDUM
www.ti.com 18-Sep-2008
Addendum-Page 1
TAPE AND REEL INFORMATION
*All dimensions are nominal
Device Package
Type Package
Drawing Pins SPQ Reel
Diameter
(mm)
Reel
Width
W1 (mm)
A0
(mm) B0
(mm) K0
(mm) P1
(mm) W
(mm) Pin1
Quadrant
TPS3803-01DCKR SC70 DCK 5 3000 180.0 8.4 2.25 2.4 1.22 4.0 8.0 Q3
TPS3803G15DCKR SC70 DCK 5 3000 180.0 8.4 2.25 2.4 1.22 4.0 8.0 Q3
TPS3805H33DCKR SC70 DCK 5 3000 180.0 8.4 2.25 2.4 1.22 4.0 8.0 Q3
TPS3805H33DCKR SC70 DCK 5 3000 178.0 9.0 2.4 2.5 1.2 4.0 8.0 Q3
PACKAGE MATERIALS INFORMATION
www.ti.com 21-Jun-2012
Pack Materials-Page 1
*All dimensions are nominal
Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm)
TPS3803-01DCKR SC70 DCK 5 3000 202.0 201.0 28.0
TPS3803G15DCKR SC70 DCK 5 3000 202.0 201.0 28.0
TPS3805H33DCKR SC70 DCK 5 3000 202.0 201.0 28.0
TPS3805H33DCKR SC70 DCK 5 3000 180.0 180.0 18.0
PACKAGE MATERIALS INFORMATION
www.ti.com 21-Jun-2012
Pack Materials-Page 2
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