Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsLinear ICsLinear IC - Comparator Window Open drain SOT 6

GND

1.8 V to 18 V

OUTA

OUTB

MON

INA+

INB-

VDD

Device

0.1 Fm

To a reset

or enable

input of

the system.

OUTB

VDD

INB-

OUTA

GND

INA+

DDC PACKAGE

ThinSOT23-6

(TOP VIEW)

OUTA

GND

INA+

OUTB

VDD

INB-

DSE PACKAGE

SON-6

(TOP VIEW)

ITP

INA+

OUTA

INB

OUTB

ITP

TPS3700

www.ti.com

SBVS187C –FEBRUARY 2012–REVISED MAY 2013

Window Comparator for Over- and Undervoltage Detection

Check for Samples: TPS3700

FEATURES

DESCRIPTION

• Wide Supply Voltage Range: 1.8 V to 18 V

The TPS3700 wide-supply voltage window

• Adjustable Threshold: Down to 400 mV

comparator operates over a 1.8-V to 18-V range. The

device has two high-accuracy comparators with an

• Open-Drain Outputs for Over- and

internal 400-mV reference and two open-drain

Undervoltage Detection

outputs rated to 18 V for over- and undervoltage

• Low Quiescent Current: 5.5 µA (typ)

detection. The TPS3700 can be used as a window

• High Threshold Accuracy:

comparator or as two independent voltage monitors;

the monitored voltage can be set with the use of

– 1.0% Over Temperature

external resistors.

– 0.25% (typ)

OUTA is driven low when the voltage at INA+ drops

• Internal Hysteresis: 5.5 mV (typ)

below (V

ITP

– V

HYS

), and goes high when the voltage

• Temperature Range: –40°C to +125°C

returns above the respective threshold (V

ITP

). OUTB

• Packages:

is driven low when the voltage at INB– rises above

ITP

, and goes high when the voltage drops below the

– ThinSOT23-6

respective threshold (V

ITP

– V

HYS

). Both comparators

– 1,5-mm × 1,5-mm SON-6

in the TPS3700 include built-in hysteresis for filtering

to reject brief glitches, thereby ensuring stable output

APPLICATIONS

operation without false triggering.

• Industrial Control Systems

The TPS3700 is available in a ThinSOT23-6 and a

• Automotive Systems

1,5-mm × 1,5-mm SON-6 package and is specified

over the junction temperature range of –40°C to

• Embedded Computing Modules

+125°C.

• DSP, Microcontroller, or Microprocessor

Applications

• Notebook and Desktop Computers

• Portable- and Battery-Powered Products

• FPGA and ASIC Applications

Figure 1. TPS3700 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 (22 pages)

PAGE 1
TPS3700 www.ti.com SBVS187C – FEBRUARY 2012 – REVISED MAY 2013 Window Comparator for Over- and Undervoltage Detection Check for Samples: TPS3700 FEATURES 1 • • • 2 • • Wide Supply Voltage Range: 1.8 V to 18 V Adjustable Threshold: Down to 400 mV Open-Drain Outputs for Over- and Undervoltage Detection Low Quiescent Current: 5.5 µA (typ) High Threshold Accuracy: – 1.0% Over Temperature – 0.25% (typ) Internal Hysteresis: 5.
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TPS3700 SBVS187C – FEBRUARY 2012 – REVISED MAY 2013 www.ti.com 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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TPS3700 www.ti.com SBVS187C – FEBRUARY 2012 – REVISED MAY 2013 ELECTRICAL CHARACTERISTICS Over the operating temperature range of TJ = –40°C to +125°C, and 1.8 V < VDD < 18 V, unless otherwise noted. Typical values are at TJ = +25°C and VDD = 5 V. PARAMETER VDD TEST CONDITIONS Supply voltage range V(POR) VITP Power-on reset voltage (1) VITN Negative-going input threshold voltage VHYS Hysteresis voltage (HYS = VITP – VITN) Input current (at IN pin) VOL Low-level output voltage Ilkg(OD) TYP 1.
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TPS3700 SBVS187C – FEBRUARY 2012 – REVISED MAY 2013 www.ti.com PARAMETRIC MEASUREMENT INFORMATION TIMING DIAGRAM VDD VITP VHYS INA+ OUTA tpd(HL) tpd(LH) tpd(LH) VITP VHYS INB- OUTB tpd(LH) tpd(HL) Figure 2.
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TPS3700 www.ti.com SBVS187C – FEBRUARY 2012 – REVISED MAY 2013 PIN CONFIGURATIONS DDC PACKAGE ThinSOT23-6 (TOP VIEW) DSE PACKAGE SON-6 (TOP VIEW) OUTA 1 6 OUTB GND 2 5 VDD INA+ 3 4 INB- OUTB 1 6 OUTA VDD 2 5 GND INB- 3 4 INA+ PIN ASSIGNMENTS PIN NO. DESCRIPTION PIN NAME DDC DSE GND 2 5 Ground INA+ 3 4 This pin is connected to the voltage to be monitored with the use of an external resistor divider.
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TPS3700 SBVS187C – FEBRUARY 2012 – REVISED MAY 2013 www.ti.com TYPICAL CHARACTERISTICS At TJ = +25°C and VCC = 5 V, unless otherwise noted. SUPPLY CURRENT vs SUPPLY VOLTAGE RISING INPUT THRESHOLD VOLTAGE vs TEMPERATURE 401 10 VDD = 1.8 V VDD = 5 V VDD = 12 V VDD = 18 V 9 8 400.6 6 VITP (mV) IDD (µA) 7 5 4 −40°C 0°C +25°C +85°C +125°C 3 2 1 0 0 2 4 6 8 10 VDD (V) 12 14 16 400.2 399.8 399.4 399 −40 −25 −10 18 G002 30 High−to−Low Propagation Delay (µs) VDD = 1.
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TPS3700 www.ti.com SBVS187C – FEBRUARY 2012 – REVISED MAY 2013 TYPICAL CHARACTERISTICS (continued) At TJ = +25°C and VCC = 5 V, unless otherwise noted. OUTPUT VOLTAGE LOW vs OUTPUT SINK CURRENT (–40°C) SUPPLY CURRENT vs OUTPUT SINK CURRENT 11 2000 10 1750 9 1500 7 VOL (mV) IDD (µA) 8 6 5 −40°C 0°C +25°C +85°C +125°C 4 3 2 1 VDD = 1.
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TPS3700 SBVS187C – FEBRUARY 2012 – REVISED MAY 2013 www.ti.com TYPICAL CHARACTERISTICS (continued) At TJ = +25°C and VCC = 5 V, unless otherwise noted. STARTUP DELAY (VDD = 5 V, INA+ = 390 mV, INB– = 410 mV, Outputs Pulled Up to VDD) STARTUP DELAY (VDD = 5 V, INA+ = 410 mV, INB– = 390 mV, Outputs Pulled Up to VDD) OUTB C2 (2.0 V/div) C1 (2.0 V/div) C3 (2.0 V/div) C2 (2.0 V/div) OUTB OUTA C1 (2.0 V/div) C3 (2.0 V/div) VDD Time (100 ms/div) G013 Figure 15.
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TPS3700 www.ti.com SBVS187C – FEBRUARY 2012 – REVISED MAY 2013 GENERAL DESCRIPTION The TPS3700 combines two comparators for over- and undervoltage detection. The TPS3700 is a wide-supply voltage range (1.8 V to 18 V) device with a high-accuracy rising input threshold of 400 mV (1% over temperature) and built-in hysteresis. The outputs are also rated to 18 V and can sink up to 40 mA. The TPS3700 is designed to assert the output signals, as shown in Table 1.
PAGE 10
TPS3700 SBVS187C – FEBRUARY 2012 – REVISED MAY 2013 www.ti.com WINDOW COMPARATOR The inverting and noninverting configuration of the comparators forms a window-comparator detection circuit using a resistor divider network, as shown in Figure 17 and Figure 18. The input pins can monitor any system voltage above 400 mV with the use of a resistor divider network. INA+ and INB– monitor for undervoltage and overvoltage conditions, respectively. VMON (13.2 V to 10.8 V) 1.
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TPS3700 www.ti.com SBVS187C – FEBRUARY 2012 – REVISED MAY 2013 The resistor divider values and target threshold voltage can be calculated by using Equation 1 through Equation 4: RTOTAL = R1 + R2 + R3 (1) Choose RTOTAL such that current through the divider is approximately 100x higher than the input current at the INA+ and INB– pins. The resistors can have high values to minimize current consumption as a result of low input bias current without adding significant error to the resistive divider.
PAGE 12
TPS3700 SBVS187C – FEBRUARY 2012 – REVISED MAY 2013 www.ti.com VPULL-UP (Up To 18 V) 1.8 V to 18 V VDD OUTA INA+ To a reset or enable input of the system. Device OUTB INB- GND Figure 19. Interfacing to Voltages Other Than VDD 1.8 V to 18 V VDD OUTA INA+ To a reset or enable input of the system. Device OUTB INB- GND Figure 20.
PAGE 13
TPS3700 www.ti.com SBVS187C – FEBRUARY 2012 – REVISED MAY 2013 VMON (26.4 V to 21.7 V) 1.8 V to 18 V R1 (2.61 MW) VDD OUTA INA+ R2 (8.06 kW) Device R3 (40.2 kW) To a reset or enable input of the system. OUTB INB- GND NOTE: The inputs can monitor a voltage higher than VDD (max) with the use of an external resistor divider network. Figure 21. Monitoring a Voltage Other Than VDD 1.8 V to 18 V OUTA INA+ To a reset or enable input of the system.
PAGE 14
TPS3700 SBVS187C – FEBRUARY 2012 – REVISED MAY 2013 www.ti.com REVISION HISTORY NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision B (April 2012) to Revision C Page • Changed Packages Features bullet ...................................................................................................................................... 1 • Added SON-6 package option to Description section ..................................................
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 3-Jul-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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PACKAGE MATERIALS INFORMATION www.ti.com 3-Jul-2013 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 TPS3700DDCR SOT DDC 6 3000 179.0 8.4 3.2 3.2 1.4 4.0 8.0 Q3 TPS3700DDCR2 SOT DDC 6 3000 179.0 8.4 3.2 3.2 1.4 4.0 8.0 Q2 TPS3700DDCT SOT DDC 6 250 179.0 8.4 3.2 3.2 1.4 4.0 8.0 Q3 TPS3700DSER WSON DSE 6 3000 179.
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PACKAGE MATERIALS INFORMATION www.ti.com 3-Jul-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPS3700DDCR SOT DDC 6 3000 195.0 200.0 45.0 TPS3700DDCR2 SOT DDC 6 3000 195.0 200.0 45.0 TPS3700DDCT SOT DDC 6 250 195.0 200.0 45.0 TPS3700DSER WSON DSE 6 3000 203.0 203.0 35.0 TPS3700DSET WSON DSE 6 250 203.0 203.0 35.
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