Datasheet

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

FEATURES APPLICATIONS

DESCRIPTION

GND

RESET

SENSE

(1)

DCK PACKAGE

(TOP VIEW)

NC – No connection

(1) SENSE on TPS3803-01, TPS3805H33

NC on TPS3803G15

RESETV

D D

SENSE GND

D D

RESET

GN D

3.3 V1.6 V

TPS3805H33 TMS320VC5416

TPS3803-01-Q1

TPS3803G15-Q1

TPS3805H33-Q1

SGLS228B – DECEMBER 2003 – REVISED JANUARY 2008

www.ti.com

VOLTAGE DETECTORS

• Applications Using DSPs, Microcontrollers, or

• Qualified for Automotive Applications

Microprocessors

• Single Voltage Detector (TPS3803):

• Wireless Communication Systems

Adjustable/1.5 V

• Portable/Battery-Powered Equipment

• Dual Voltage Detector (TPS3805):

• Programmable Controls

Adjustable/3.3 V

• Intelligent Instruments

• High ± 1.5% Threshold Voltage Accuracy

• Industrial Equipment

• Supply Current: 3 µ A Typical at V

= 3.3 V

• Notebook/Desktop Computers

• Push/Pull Reset Output (TPS3805),

• Automotive Systems

Open-Drain Reset Output (TPS3803)

• Temperature Range: – 40 ° C to 125 ° C

• 5-Pin SC-70 Package

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

, the TPS3805 devices provide a second

adjustable SENSE input. RESET is asserted in case

either of the two voltages drops below V

During power on, RESET is asserted when supply

voltage V

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

(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 125 ° C.

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.

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.

Summary of content (16 pages)

PAGE 1
TPS3803-01-Q1 TPS3803G15-Q1 TPS3805H33-Q1 www.ti.com SGLS228B – DECEMBER 2003 – REVISED JANUARY 2008 VOLTAGE DETECTORS FEATURES APPLICATIONS • • • 1 • • • • • • Qualified for Automotive Applications Single Voltage Detector (TPS3803): 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.
PAGE 2
TPS3803-01-Q1 TPS3803G15-Q1 TPS3805H33-Q1 www.ti.com SGLS228B – DECEMBER 2003 – REVISED JANUARY 2008 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.
PAGE 3
TPS3803-01-Q1 TPS3803G15-Q1 TPS3805H33-Q1 www.ti.com SGLS228B – DECEMBER 2003 – REVISED JANUARY 2008 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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TPS3803-01-Q1 TPS3803G15-Q1 TPS3805H33-Q1 www.ti.com SGLS228B – DECEMBER 2003 – REVISED JANUARY 2008 TIMING REQUIREMENTS VDD or SENSE VIT + V hys VIT 0.8 V RESET = Undefined TERMINAL FUNCTIONS TERMINAL NAME NO.
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TPS3803-01-Q1 TPS3803G15-Q1 TPS3805H33-Q1 www.ti.com SGLS228B – DECEMBER 2003 – REVISED JANUARY 2008 ABSOLUTE MAXIMUM RATINGS (1) over operating free-air temperature range (unless otherwise noted) VALUE Supply voltage (2) VDD 7V Voltage applied to all other pins (2) –0.
PAGE 6
TPS3803-01-Q1 TPS3803G15-Q1 TPS3805H33-Q1 www.ti.com SGLS228B – DECEMBER 2003 – REVISED JANUARY 2008 ELECTRICAL CHARACTERISTICS over operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VDD = 1.5 V, IOH = –0.5 mA VOH High-level output voltage (TPS3805 only) 0.8 × VDD VDD = 3.3 V, IOH = –1 mA V VDD = 6 V, IOH = –1.5 mA VDD = 1.5 V, IOL = 1 mA VOL Low-level output voltage VDD = 3.3 V, IOL = 2 mA 0.
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TPS3803-01-Q1 TPS3803G15-Q1 TPS3805H33-Q1 www.ti.com SGLS228B – DECEMBER 2003 – REVISED JANUARY 2008 TYPICAL CHARACTERISTICS TPS3805H33 SUPPLY CURRENT vs SUPPLY VOLTAGE TPS3803-01 SUPPLY CURRENT vs SUPPLY VOLTAGE 6 3 SENSE = GND RESET = Open 2.5 IDD – Supply Current – µA IDD – Supply Current – µA 5 4 3 85°C 2 25°C 0°C -40 °C 1 1.5 85°C 25°C 1 0°C -40 °C 0.5 0 SENSE = GND RESET = Open 0 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 0 1 1.5 3 3.5 2 2.5 4 4.
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TPS3803-01-Q1 TPS3803G15-Q1 TPS3805H33-Q1 www.ti.com SGLS228B – DECEMBER 2003 – REVISED JANUARY 2008 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 VDD = 6 V V(SENSE) = Low 0.9 VOL – Low-Level Output Voltage – V VOL – Low-Level Output Voltage – V 3.5 1 0.5 85°C 0.8 25°C 0.7 0°C 0.6 -40 °C 0.5 0.4 0.3 0.
PAGE 9
TPS3803-01-Q1 TPS3803G15-Q1 TPS3805H33-Q1 www.ti.com SGLS228B – DECEMBER 2003 – REVISED JANUARY 2008 TYPICAL CHARACTERISTICS (continued) TPS3805H33 HIGH-LEVEL OUTPUT VOLTAGE vs HIGH-LEVEL OUTPUT CURRENT TPS3805H33 HIGH-LEVEL OUTPUT VOLTAGE vs HIGH-LEVEL OUTPUT CURRENT 6 6 5.5 VOH – High-Level Output Voltage – V VOH – High-Level Output Voltage – V VDD = 6 V V(SENSE) = High 5 85°C 4.5 25°C 4 0°C 3.5 -40 °C -4 -3 -2 -1 5.6 5.4 85°C 25°C 5.2 0°C -40 °C 5 (Expanded View) 4.8 4.
PAGE 10
TPS3803-01-Q1 TPS3803G15-Q1 TPS3805H33-Q1 www.ti.com SGLS228B – DECEMBER 2003 – REVISED JANUARY 2008 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 0.9 1 SENSE – Threshold Overdrive Voltage – V Figure 13.
PAGE 11
TPS3803-01-Q1 TPS3803G15-Q1 TPS3805H33-Q1 www.ti.com SGLS228B – DECEMBER 2003 – REVISED JANUARY 2008 Revision History REVISION PAGE SGLS228 SGLS228A SGLS228B (1) (1) DESCRIPTION Initial release 1 Update features and description 3 Update functional block diagram 1 Update features Page numbers for previous revitions 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 6-Sep-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.
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