Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsPMICsPMIC - system monitor Dual voltage detector VSSOP 8

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FEATURES APPLICATIONS

TPS3306

SENSE2

PFI

GND

PFO

WDI

SENSE1

RESET

DORDGKPACKAGE

(TOPVIEW)

DESCRIPTION

TYPICAL OPERATING CIRCUIT

SENSE1

SENSE2

PFI

GND

WDI

PFO

RESET

TPS3306–15

R3 R4

B_XF

A_XF

RESET

SSA

TMS320

VC5441

3.3 V 1.5 V

TPS3306-15

TPS3306-18 , TPS3306-20

TPS3306-25 , TPS3306-33

SLVS290C – APRIL 2000 – REVISED DECEMBER 2006

DUAL PROCESSOR SUPERVISORY CIRCUITS WITH POWER-FAIL

• Multivoltage DSPs and Processors

• Dual Supervisory Circuits With Power-Fail for

DSP and Processor-Based Systems

• Portable Battery-Powered Equipment

• Embedded Control Systems

• Voltage Monitor for Power-Fail or Low-Battery

Warning

• Intelligent Instruments

• Automotive Systems

• Watchdog Timer With 0.8 Second Time-Out

• Power-On Reset Generator With Integrated

100 ms Delay Time

• Open-Drain Reset and Power-Fail Output

• Supply Current of 15 µ A (Typ.)

• Supply Voltage Range: 7 V to 6 V

• Defined RESET Output From V

≥ 1.1 V

• MSOP-8 and SO-8 Packages

• Temperature Range: –40 ° C to +85 ° C

The TPS3306 family is a series of supervisory circuits designed for circuit initialization which require two supply

voltages, primarily in DSP and processor-based systems.

The product spectrum of the TPS3306-xx is designed for monitoring two independent supply voltages of

3.3 V/1.5 V, 3.3 V/1.8 V, 3.3 V/2 V, 3.3 V/2.5 V, or 3.3 V/5 V.

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.

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 (18 pages)

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TPS3306-15 TPS3306-18, TPS3306-20 TPS3306-25, TPS3306-33 www.ti.com SLVS290C – APRIL 2000 – REVISED DECEMBER 2006 DUAL PROCESSOR SUPERVISORY CIRCUITS WITH POWER-FAIL FEATURES APPLICATIONS • • • • • • • • • • • • • • • Dual Supervisory Circuits With Power-Fail for DSP and Processor-Based Systems Voltage Monitor for Power-Fail or Low-Battery Warning Watchdog Timer With 0.
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TPS3306-15 TPS3306-18, TPS3306-20 TPS3306-25, TPS3306-33 www.ti.com SLVS290C – APRIL 2000 – REVISED DECEMBER 2006 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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TPS3306-15 TPS3306-18, TPS3306-20 TPS3306-25, TPS3306-33 www.ti.com SLVS290C – APRIL 2000 – REVISED DECEMBER 2006 FUNCTION/TRUTH TABLES SENSE1 > VIT1 SENSE2 > VIT2 RESET 0 0 L 0 1 L 1 0 L 1 1 H FUNCTION/TRUTH TABLES PFI > VIT PFO 0 L 1 H FUNCTIONAL BLOCK DIAGRAM TPS3306 SENSE1 R1 VDD + _ SENSE2 R2 R4 RESET RESET Logic + Timer R3 + _ GND Reference Voltage of 1.
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TPS3306-15 TPS3306-18, TPS3306-20 TPS3306-25, TPS3306-33 www.ti.com SLVS290C – APRIL 2000 – REVISED DECEMBER 2006 TIMING DIAGRAM SENSEn V(nom) VIT 1.1 V t WDI 1 tt(out) 0 t RESET 1 Undefined Behavior Undefined Behavior 0 t td td td RESET Because of Power-Down RESET Because of WDI RESET Because of a Power Drop Below VIT– RESET Because of Power-Up Table 4. Terminal Functions TERMINAL NAME NO.
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TPS3306-15 TPS3306-18, TPS3306-20 TPS3306-25, TPS3306-33 www.ti.com SLVS290C – APRIL 2000 – REVISED DECEMBER 2006 DETAILED DESCRIPTION (continued) Saving Current While Using the Watchdog The watchdog input is internally driven low during the first 7/8 of the watchdog time-out period, then momentarily pulses high, resetting the watchdog counter.
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TPS3306-15 TPS3306-18, TPS3306-20 TPS3306-25, TPS3306-33 www.ti.com SLVS290C – APRIL 2000 – REVISED DECEMBER 2006 ABSOLUTE MAXIMUM RATINGS Over operating free-air temperature range (unless otherwise noted). (1) UNIT Supply voltage, VDD (see (2)) 7V PFI pin –0.3 V to VDD + 0.3 V All other pins (see (2)) –0.
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TPS3306-15 TPS3306-18, TPS3306-20 TPS3306-25, TPS3306-33 www.ti.com SLVS290C – APRIL 2000 – REVISED DECEMBER 2006 ELECTRICAL CHARACTERISTICS Over recommended operating free-air temperature range (unless otherwise noted). PARAMETER VOL RESET, PFO Low-level output voltage Power-up reset voltage (see TEST CONDITIONS Negative-going input threshold voltage (see (2)) VDD = 3.3 V, IOL= 2 mA 0.4 VDD = 6 V, IOL = 3 mA 0.4 VDD = 2.7 V to 6 V TA = 0°C to +85°C VDD = 2.
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TPS3306-15 TPS3306-18, TPS3306-20 TPS3306-25, TPS3306-33 www.ti.com SLVS290C – APRIL 2000 – REVISED DECEMBER 2006 TIMING REQUIREMENTS at VDD = 2.7 V to 6 V, RL= 1 MΩ, CL= 50 pF, TA= 25°C PARAMETER tw Pulse width TEST CONDITIONS SENSEn VSENSEnL = VIT– 0.2 V, VSENSEnH = VIT + 0.2 V WDI VIH = 0.7 × VDD, VIL= 0.3 × VDD MIN TYP MAX UNIT 6 µs 100 ns SWITCHING CHARACTERISTICS at VDD = 2.
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TPS3306-15 TPS3306-18, TPS3306-20 TPS3306-25, TPS3306-33 www.ti.com SLVS290C – APRIL 2000 – REVISED DECEMBER 2006 TYPICAL CHARACTERISTICS (continued) LOW-LEVEL OUTPUT VOLTAGE vs LOW-LEVEL OUTPUT CURRENT LOW-LEVEL OUTPUT VOLTAGE vs LOW-LEVEL OUTPUT CURRENT 2.8 6.5 1.6 85°C 0.8 −40°C 0.4 VOL − Low-Level Output Voltage − V 2 1.2 VDD = 6 V 6 2.4 5.5 5 4.5 4 3.5 3 85°C 2.5 2 1.5 −40°C 1 0.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 10-Jun-2014 (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.
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PACKAGE MATERIALS INFORMATION www.ti.com 16-Aug-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device TPS3306-15DGKR Package Package Pins Type Drawing VSSOP SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant DGK 8 2500 330.0 12.4 5.3 3.4 1.4 8.0 12.0 Q1 TPS3306-15DR SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 TPS3306-18DGKR VSSOP DGK 8 2500 330.0 12.4 5.3 3.4 1.4 8.0 12.
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PACKAGE MATERIALS INFORMATION www.ti.com 16-Aug-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPS3306-15DGKR VSSOP DGK 8 2500 358.0 335.0 35.0 TPS3306-15DR SOIC D 8 2500 367.0 367.0 35.0 TPS3306-18DGKR VSSOP DGK 8 2500 358.0 335.0 35.0 TPS3306-18DR SOIC D 8 2500 367.0 367.0 35.0 TPS3306-25DGKR VSSOP DGK 8 2500 358.0 335.0 35.0 TPS3306-25DR SOIC D 8 2500 367.0 367.0 35.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.