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3.3 V

TPS3809K33

TMS320LC54x

GND

RESET

TPS76333

GND

OUTIN5 V

RESET

GND

TPS3809J25, TPS3809L30

TPS3809K33, TPS3809I50

www.ti.com

SLVS228C –AUGUST 1999–REVISED OCTOBER 2013

3-Pin Supply Voltage Supervisors

Check for Samples: TPS3809J25, TPS3809L30, TPS3809K33, TPS3809I50

FEATURES

DESCRIPTION

The TPS3809 family of supervisory circuits provides

• 3-Pin SOT-23 Package

circuit initialization and timing supervision, primarily

• Supply Current of 9 μA (Typical)

for DSPs and processor-based systems.

• Precision Supply Voltage Monitor

During power-on, RESET is asserted when the

2.5 V, 3 V, 3.3 V, 5 V

supply voltage V

becomes higher than 1.1 V.

• Pin-For-Pin Compatible With MAX 809

Thereafter, the supervisory circuit monitors V

and

keeps RESET active as long as V

remains below

• Temperature Range: –40°C to +85°C

the threshold voltage V

. An internal timer delays the

return of the output to the inactive state (high) to

APPLICATIONS

ensure proper system reset. The delay time, t

d(typ)

• Applications Using DSPs, Microcontrollers, or

200 ms, starts after V

has risen above the

Microprocessors

threshold voltage V

. When the supply voltage drops

below the threshold voltage V

, the output becomes

• Wireless Communication Systems

active (low) again. No external components are

• Portable/Battery-Powered Equipment

required. All the devices of this family have a fixed

• Programmable Controls

sense-threshold voltage V

set by an internal voltage

divider.

• Intelligent Instruments

• Industrial Equipment

The product spectrum is designed for supply voltages

of 2.5 V, 3 V, 3.3 V, and 5 V. The circuits are

• Notebook/Desktop Computers

available in a 3-pin SOT-23. The TPS3809 devices

• Automotive Systems

are characterized for operation over a temperature

range of –40°C to 85°C.

DBV PACKAGE

TOP VIEW)

TYPICAL APPLICATION

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.

2All trademarks are the property of their respective owners.

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 (13 pages)

PAGE 1
TPS3809J25, TPS3809L30 TPS3809K33, TPS3809I50 www.ti.com SLVS228C – AUGUST 1999 – REVISED OCTOBER 2013 3-Pin Supply Voltage Supervisors Check for Samples: TPS3809J25, TPS3809L30, TPS3809K33, TPS3809I50 FEATURES DESCRIPTION • • • The TPS3809 family of supervisory circuits provides circuit initialization and timing supervision, primarily for DSPs and processor-based systems. 1 2 • • 3-Pin SOT-23 Package Supply Current of 9 μA (Typical) Precision Supply Voltage Monitor 2.5 V, 3 V, 3.
PAGE 2
TPS3809J25, TPS3809L30 TPS3809K33, TPS3809I50 SLVS228C – AUGUST 1999 – REVISED OCTOBER 2013 www.ti.com These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. AVAILABLE OPTIONS (1) TA DEVICE NAME –40°C to 85°C (1) THRESHOLD VOLTAGE MARKING TPS3809J25DBVR TPS3809J25DBVT 2.25 V PCZI TPS3809L30DBVR TPS3809L30DBVT 2.
PAGE 3
TPS3809J25, TPS3809L30 TPS3809K33, TPS3809I50 www.ti.com SLVS228C – AUGUST 1999 – REVISED OCTOBER 2013 ELECTRICAL CHARACTERISTICS Over recommended operating free-air temperature range (unless otherwise noted). PARAMETER TPS3800-xx, TPS3801-xx, TPS3802xx TEST CONDITIONS MIN VOH VOL High-level output voltage Low-level output voltage Power-up reset voltage (1) VDD = 2.5 V to 6 V IOH = –500 μA VDD –0.2 VDD = 3.3 V IOH = –2 mA VDD –0.4 VDD = 6 V IOH = –4 mA VDD –0.
PAGE 4
TPS3809J25, TPS3809L30 TPS3809K33, TPS3809I50 SLVS228C – AUGUST 1999 – REVISED OCTOBER 2013 www.ti.com TIMING DIAGRAM VDD V(NOM) VIT 1.1 V t RESET aaaaa aaaaa aaaaa aaaaa aaaaa 1 aaaa aaaa aaaa aaaa aaaa 0 td t td For VDD< 1.1 V Undefined Behavior of RESET Output FUNCTIONAL BLOCK DIAGRAM TPS3809 R1 _ VDD + Reset Logic + Timer RESET R2 GND Oscillator Reference Voltage of 1.
PAGE 5
TPS3809J25, TPS3809L30 TPS3809K33, TPS3809I50 www.ti.com SLVS228C – AUGUST 1999 – REVISED OCTOBER 2013 TYPICAL CHARACTERISTICS spacer LOW-LEVEL OUTPUT VOLTAGE vs LOW-LEVEL OUTPUT CURRENT 50 2.75 VDD = 2.5 V o 2.50 40 2.25 30 2.00 o TA = 25 C 1.75 1.50 o TA = 85 C 1.25 o TA = 0 C 1.00 0.75 o TA = –40 C 0.50 IDD – Supply Current – mA VOL – Low-Level Output Voltage – V SUPPLY CURRENT vs SUPPLY VOLTAGE TA = 25 C 20 10 TPS3809J25 0 –10 –20 –30 –40 0.25 –50 0 0 2.5 5.0 7.5 10.
PAGE 6
TPS3809J25, TPS3809L30 TPS3809K33, TPS3809I50 SLVS228C – AUGUST 1999 – REVISED OCTOBER 2013 www.ti.com TYPICAL CHARACTERISTICS (continued) SPACE NORMALIZED INPUT THRESHOLD VOLTAGE vs FREE-AIR TEMPERATURE AT VDD 3.5 1.001 VDD = 2.3 V t w – Minimum Pulse Duration at VDD – ms Normalized Threshold Voltage VIT (TA), VIT (25oC) SPACE NORMALIZED INPUT THRESHOLD VOLTAGE vs FREE-AIR TEMPERATURE AT VDD 1.000 0.999 0.998 0.997 0.996 0.995 –40 3.0 2.5 2.0 1.5 1.0 0.
PAGE 7
PACKAGE OPTION ADDENDUM www.ti.
PAGE 8
PACKAGE OPTION ADDENDUM www.ti.com 10-Jun-2014 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.
PAGE 9
PACKAGE OPTION ADDENDUM www.ti.
PAGE 10
PACKAGE MATERIALS INFORMATION www.ti.com 6-Mar-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) TPS3809I50DBVR SOT-23 DBV 3 3000 178.0 9.0 B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 3.3 3.2 1.47 4.0 8.0 Q3 TPS3809I50DBVT SOT-23 DBV 3 250 178.0 9.0 3.3 3.2 1.47 4.0 8.0 Q3 TPS3809J25DBVR SOT-23 DBV 3 3000 178.0 9.0 3.3 3.2 1.47 4.0 8.
PAGE 11
PACKAGE MATERIALS INFORMATION www.ti.com 6-Mar-2014 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPS3809I50DBVR SOT-23 DBV 3 3000 180.0 180.0 18.0 TPS3809I50DBVT SOT-23 DBV 3 250 180.0 180.0 18.0 TPS3809J25DBVR SOT-23 DBV 3 3000 180.0 180.0 18.0 TPS3809J25DBVT SOT-23 DBV 3 250 180.0 180.0 18.0 TPS3809K33DBVR SOT-23 DBV 3 3000 180.0 180.0 18.0 TPS3809K33DBVT SOT-23 DBV 3 250 180.0 180.
PAGE 12
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