Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsPMICsPMIC - system monitor Dual voltage detector SC 70 5

FEATURES

D Single Voltage Detector (TPS3803):

Adjustable/1.5 V

D Dual Voltage Detector (TPS3805):

Adjustable/3.3 V

D High ±1.5% Threshold Voltage Accuracy

D Supply Current: 3 µA Typical at V

= 3.3 V

D Push/Pull Reset Output (TPS3805) Open-Drain

Reset Output (TPS3803)

D Temperature Range: −40°C to +85°C

D 5-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 V

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 V

, the TPS3805 devices

provide a second adjustable SENSE input. RESET

asserted in case any of the two voltages drops below V

IT.

During power on, RESET is asserted when supply voltage

becomes higher than 0.8 V. Thereafter, the

supervisory circuit monitors V

(and/or SENSE) and

keeps RESET

active as long as V

or SENSE remains

below the threshold voltage V

. As soon as V

(SENSE)

rises above the threshold voltage V

, 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

D Applications Using DSPs, Microcontrollers,

or Microprocessors

D Wireless Communication Systems

D Portable/Battery-Powered Equipment

D Programmable Controls

D Intelligent Instruments

D Industrial Equipment

D Notebook/Desktop Computers

D Automotive Systems

DCK PACKAGE

(Top View)

GND

RESET

(1) NC =

No Connection on TPS3803G15

SENSE

(1)

TPS3803−01, TPS3803G15, TPS3805

Typical Operating Circuit

TPS3805H33 TMS320VC5416

RESETV

SENSE

GND

RESET

GND

3.3 V1.6 V

www.ti.com

TPS3803−01

TPS3803G15

TPS3805H33

SLVS392A − JULY 2001 − REVISED JUNE 2007

VOLTAGE

DETECTOR

         

          

 !     !   

www.ti.com

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.

Summary of content (18 pages)

PAGE 1
TPS3803−01 TPS3803G15 TPS3805H33 www.ti.com SLVS392A − JULY 2001 − REVISED JUNE 2007 VOLTAGE DETECTOR FEATURES APPLICATIONS D Single Voltage Detector (TPS3803): D Applications Using DSPs, Microcontrollers, D D D D D D Adjustable/1.5 V Dual Voltage Detector (TPS3805): Adjustable/3.3 V High ±1.5% Threshold Voltage Accuracy Supply Current: 3 µA Typical at VDD = 3.
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"#$%#&%' "#$%#(') "#$%)*## www.ti.com SLVS392A − JULY 2001 − REVISED JUNE 2007 This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure.
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"#$%#&%' "#$%#(') "#$%)*## www.ti.com SLVS392A − JULY 2001 − REVISED JUNE 2007 FUNCTIONAL BLOCK DIAGRAM TPS3803G15 R1 VDD VDD RESET _ SENSE + TPS3803−01 Device Supply Voltage _ RESET + R2 GND GND Reference Voltage of 1.215 V Reference Voltage of 1.226 V TPS3805 _ SENSE + R1 VDD RESET _ + R2 GND Reference Voltage of 1.
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"#$%#&%' "#$%#(') "#$%)*## www.ti.com SLVS392A − JULY 2001 − REVISED JUNE 2007 TIMING REQUIREMENTS VDD or SENSE VIT + Vhys VIT 0.8 V RESET = Undefined Terminal Functions TERMINAL NAME NO.
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"#$%#&%' "#$%#(') "#$%)*## www.ti.com SLVS392A − JULY 2001 − REVISED JUNE 2007 ABSOLUTE MAXIMUM RATINGS(1) Over operating free-air temperature range, unless otherwise noted. Supply voltage, VDD(2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +7 V All other pins(2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.
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"#$%#&%' "#$%#(') "#$%)*## www.ti.com SLVS392A − JULY 2001 − REVISED JUNE 2007 ELECTRICAL CHARACTERISTICS Over recommended operating free-air temperature range, unless otherwise noted. PARAMETER VOH TEST CONDITIONS VDD = 1.5 V, VDD = 3.3 V, High-level output voltage (TPS3805 only) VDD = 6 V, VDD = 1.5 V, VOL VDD = 3.3 V, VDD = 6 V, Low-level output voltage Power-up reset voltage(1) IOH = −0.5 mA IOH = −1.0 mA IOH = −1.5 mA Negative-going input threshold voltage(2) 1.0 1.
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"#$%#&%' "#$%#(') "#$%)*## www.ti.com SLVS392A − JULY 2001 − REVISED JUNE 2007 TYPICAL CHARACTERISTICS TPS3805H33 SUPPLY CURRENT vs SUPPLY VOLTAGE TPS3803−01 SUPPLY CURRENT vs SUPPLY VOLTAGE 6 3 SENSE = GND RESET = Open 2.5 I DD − Supply Current − µ A I DD − Supply Current − µ A 5 4 3 85°C 2 25°C 0°C −40°C 1 2 1.5 85°C 25°C 1 0°C −40°C 0.5 SENSE = GND RESET = Open 0 0 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 0 0.5 1 VDD − Supply Voltage − V 1.5 2 2.5 Figure 1 4.
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"#$%#&%' "#$%#(') "#$%)*## www.ti.com SLVS392A − JULY 2001 − REVISED JUNE 2007 TYPICAL CHARACTERISTICS (continued) LOW-LEVEL OUTPUT VOLTAGE vs LOW-LEVEL OUTPUT CURRENT LOW-LEVEL OUTPUT VOLTAGE vs LOW-LEVEL OUTPUT CURRENT 1 VDD = 6 V V(SENSE) = Low 3 85°C 2.5 25°C 2 0°C −40°C 1.5 1 0.5 0 VDD = 6 V V(SENSE) = Low 0.9 VOL − Low-Level Output Voltage − V VOL − Low-Level Output Voltage − V 3.5 85°C 0.8 25°C 0.7 0°C 0.6 −40°C 0.5 0.4 0.3 0.2 (Expanded View) 0.
PAGE 9
"#$%#&%' "#$%#(') "#$%)*## www.ti.com SLVS392A − JULY 2001 − REVISED JUNE 2007 TYPICAL CHARACTERISTICS (continued) TPS3805H33 HIGH-LEVEL OUTPUT VOLTAGE vs HIGH-LEVEL OUTPUT CURRENT TPS3805H33 HIGH-LEVEL OUTPUT VOLTAGE vs HIGH-LEVEL OUTPUT CURRENT 6 VDD = 6 V V(SENSE) = High VOH − High-Level Output Voltage − V VOH − High-Level Output Voltage − V 6 5.5 5 85°C 4.5 25°C 4 0°C 3.5 −40°C 3 −4 −3 −2 5.6 5.4 85°C 25°C 5.2 0°C −40°C 5 (Expanded View) 4.8 4.
PAGE 10
"#$%#&%' "#$%#(') "#$%)*## www.ti.com SLVS392A − JULY 2001 − REVISED JUNE 2007 TYPICAL CHARACTERISTICS (continued) MINIMUM PULSE DURATION AT SENSE vs SENSE THRESHOLD OVERDRIVE VOLTAGE tw − Minimum Pulse Duration at SENSE − µs 10 9 8 7 6 5 4 3 2 1 0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.
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Revision History DATE REV 6/07 A PAGE SECTION DESCRIPTION Front Page — Updated front page. 3 — Functional block diagram change. NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 11-Apr-2013 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.
PAGE 14
PACKAGE MATERIALS INFORMATION www.ti.com 4-Jun-2014 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant TPS3803-01DCKR SC70 DCK 5 3000 178.0 9.0 2.4 2.5 1.2 4.0 8.0 Q3 TPS3803-01DCKR SC70 DCK 5 3000 180.0 8.4 2.41 2.41 1.2 4.0 8.0 Q3 TPS3803G15DCKR SC70 DCK 5 3000 180.0 8.4 2.41 2.41 1.2 4.0 8.
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PACKAGE MATERIALS INFORMATION www.ti.com 4-Jun-2014 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPS3803-01DCKR SC70 DCK 5 3000 180.0 180.0 18.0 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 180.0 180.0 18.0 TPS3805H33DCKR SC70 DCK 5 3000 202.0 201.0 28.
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