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TPS3711DDCT

TPS3711DDCT

  • 厂商:

    BURR-BROWN(德州仪器)

  • 封装:

    SOT23-5

  • 描述:

    TPS3711 36-V VOLTAGE DETECTOR

  • 数据手册
  • 价格&库存
TPS3711DDCT 数据手册
Order Now Product Folder Support & Community Tools & Software Technical Documents TPS3711 SBVS272A – NOVEMBER 2015 – REVISED SEPTEMBER 2018 TPS3711 36-V Voltage Detector 1 Features 3 Description • • • • • The TPS3711 wide-supply voltage comparator operates over a 1.8-V to 36-V range. The device has a precision comparator with an internal 400-mV reference and an open-drain output rated to 25 V for undervoltage detection. Set the monitored voltage with the use of external resistors. 1 • • • Wide Supply Voltage Range: 1.8 V to 36 V Adjustable Threshold: Down to 400 mV Open-Drain Output for Undervoltage Detection Low Quiescent Current: 7 µA (Typical) High Threshold Accuracy: – 0.75% Over Temperature – 0.25% (Typical) Internal Hysteresis: 5.5 mV (Typical) Temperature Range: –40°C to +125°C Package: SOT-6 2 Applications • • • • • • Industrial Control Systems Embedded Computing Modules DSPs, Microcontrollers, and Microprocessors Notebook and Desktop Computers Portable- and Battery-Powered Products FPGA and ASIC Systems OUT is driven low when the voltage at the SENSE pin drops below the negative threshold, and goes high when the voltage returns above the positive threshold. The comparator in the TPS3711 includes built-in hysteresis for noise rejection, thereby ensuring stable output operation without false triggering. The TPS3711 is available in a SOT-6 package, and is specified over the junction temperature range of –40°C to +125°C. Device Information PART NUMBER TPS3711 Typical Error vs Junction Temperature 1.8 V to 36 V VPUL LU P 0 V to 25 V RP VDD SENSE R2 OUT To a re set or ena ble input of the system Negative-Going Input Threshold (mV) 400 VMON R1 399.9 399.8 399.7 399.6 399.5 399.4 399.3 399.2 VDD = 1.8 V VDD = 12 V VDD = 36 V 399.1 399 -40 GND BODY SIZE (NOM) 2.90 mm × 1.60 mm (1) For all available packages, see the package option addendum at the end of the datasheet. Typical Application 0.01 F PACKAGE SOT (6) (1) -25 -10 5 20 35 50 65 Temperature (qC) 80 95 110 125 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. TPS3711 SBVS272A – NOVEMBER 2015 – REVISED SEPTEMBER 2018 www.ti.com Table of Contents 1 2 3 4 5 6 7 Features .................................................................. Applications ........................................................... Description ............................................................. Revision History..................................................... Pin Configuration and Functions ......................... Specifications......................................................... 1 1 1 2 3 4 6.1 6.2 6.3 6.4 6.5 6.6 6.7 4 4 4 4 5 6 7 Absolute Maximum Ratings ..................................... ESD Ratings.............................................................. Recommended Operating Conditions....................... Thermal Information .................................................. Electrical Characteristics........................................... Timing Requirements ................................................ Typical Characteristics .............................................. Detailed Description .............................................. 9 7.1 Overview ................................................................... 9 7.2 Functional Block Diagram ......................................... 9 7.3 Feature Description................................................. 10 7.4 Device Functional Modes........................................ 10 8 Application and Implementation ........................ 11 8.1 Application Information............................................ 11 8.2 Typical Application ................................................. 12 9 Power Supply Recommendations...................... 14 10 Layout................................................................... 15 10.1 Layout Guidelines ................................................. 15 10.2 Layout Example .................................................... 15 11 Device and Documentation Support ................. 16 11.1 11.2 11.3 11.4 11.5 Documentation Support ....................................... Community Resources.......................................... Trademarks ........................................................... Electrostatic Discharge Caution ............................ Glossary ................................................................ 16 16 16 16 16 12 Mechanical, Packaging, and Orderable Information ........................................................... 16 4 Revision History Changes from Original (November 2015) to Revision A Page • Changed input pin voltage maximum value from 1.7 V to 6.5 V ............................................................................................ 4 • Added tablenote .................................................................................................................................................................... 4 2 Submit Documentation Feedback Copyright © 2015–2018, Texas Instruments Incorporated Product Folder Links: TPS3711 TPS3711 www.ti.com SBVS272A – NOVEMBER 2015 – REVISED SEPTEMBER 2018 5 Pin Configuration and Functions DDC Package 6-Pin SOT Top View OUT 1 6 GND GND 2 5 VDD SENSE 3 4 GND Pin Functions PIN NAME NO. I/O GND 2, 4, 6 — Ground. Connect all three pins to ground. DESCRIPTION OUT 1 O Comparator open-drain output. This pin is driven low when the voltage at this comparator is less than VIT–. The output goes high when the sense voltage rises above VIT+. SENSE 3 I Comparator input. This pin is connected to the voltage to be monitored with the use of an external resistor divider. When the voltage at this pin drops below the threshold voltage VIT–, OUT is driven low. VDD 5 I Supply-voltage input. Connect a 1.8-V to 36-V supply to VDD to power the device. It is good analog design practice to place a 0.1-µF ceramic capacitor close to this pin. Submit Documentation Feedback Copyright © 2015–2018, Texas Instruments Incorporated Product Folder Links: TPS3711 3 TPS3711 SBVS272A – NOVEMBER 2015 – REVISED SEPTEMBER 2018 www.ti.com 6 Specifications 6.1 Absolute Maximum Ratings (1) over operating junction temperature range (unless otherwise noted) MIN Voltage (2) Current (2) –0.3 40 VOUT –0.3 28 VSENSE –0.3 7 Output pin current Temperature (1) MAX VDD V 40 Operating junction, TJ –40 125 Storage, Tstg -40 125 UNIT mA °C Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. All voltages are with respect to network ground terminal. 6.2 ESD Ratings VALUE V(ESD) (1) (2) Electrostatic discharge Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001 (1) ±2000 Charged-device model (CDM), per JEDEC specification JESD22-C101 (2) ±500 UNIT V JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process. JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process. 6.3 Recommended Operating Conditions over operating junction temperature range (unless otherwise noted) MIN VDD Supply pin voltage VSENSE NOM MAX UNIT 1.8 36 V Input pin voltage 0 6.5 (1) V VOUT Output pin voltage 0 25 V VPULLUP Pullup voltage 0 25 V IOUT Output pin current 0 10 mA TJ Junction temperature 125 °C (1) –40 25 Operating Vsense at 1.7 V or higher and at 125°C continuously for 10 years or more would cause a degradation of accuracy spec to 1.5% maximum. 6.4 Thermal Information TPS3711 THERMAL METRIC (1) DDC (SOT) UNIT 6 PINS RθJA Junction-to-ambient thermal resistance 201.6 °C/W RθJC(top) Junction-to-case (top) thermal resistance 47.8 °C/W RθJB Junction-to-board thermal resistance 51.2 °C/W ψJT Junction-to-top characterization parameter 0.7 °C/W ψJB Junction-to-board characterization parameter 50.8 °C/W RθJC(bot) Junction-to-case (bottom) thermal resistance N/A °C/W (1) 4 For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report (SPRA953). Submit Documentation Feedback Copyright © 2015–2018, Texas Instruments Incorporated Product Folder Links: TPS3711 TPS3711 www.ti.com SBVS272A – NOVEMBER 2015 – REVISED SEPTEMBER 2018 6.5 Electrical Characteristics Over the operating temperature range of TJ = –40°C to +125°C, 1.8 V ≤ VDD < 36 V, and pullup resistor RP = 100 kΩ (unless otherwise noted). Typical values are at TJ = 25°C and VDD = 12 V. PARAMETER TEST CONDITIONS MIN V(POR) Power-on reset voltage (1) VOL ≤ 0.2 V VIT– SENSE pin negative input threshold voltage VDD = 1.8 V to 36 V 397 VIT+ SENSE pin positive input threshold voltage VDD = 1.8 V to 36 V 400 VHYS SENSE pin hysteresis voltage (HYS = VIT+ – VIT–) 2 VOL Low-level output voltage IIN Input current (at SENSE pin) ID(leak) Open-drain leakage current VDD = 1.8 V and 36 V, VOUT = 25 V IDD Supply current VDD = 1.8 V – 36 V UVLO Undervoltage lockout (2) VDD falling (1) (2) TYP MAX UNIT 0.8 V 400 403 mV 405.5 413 mV 5.5 12 mV VDD = 1.8 V, IOUT = 3 mA 130 250 VDD = 5 V, IOUT = 5 mA 150 250 mV VDD = 1.8 V and 36 V, VSENSE = 6.5 V –25 +1 +25 VDD = 1.8 V and 36 V, VSENSE = 0.1 V –15 +1 +15 10 300 nA 8 11 µA 1.5 1.7 V 1.3 nA The lowest supply voltage (VDD) at which output is active; tr(VDD) > 15 µs/V. If less than V(POR), the output is undetermined. When VDD falls below UVLO, OUT is driven low. The output cannot be determined if less than V(POR). Submit Documentation Feedback Copyright © 2015–2018, Texas Instruments Incorporated Product Folder Links: TPS3711 5 TPS3711 SBVS272A – NOVEMBER 2015 – REVISED SEPTEMBER 2018 www.ti.com 6.6 Timing Requirements PARAMETER TEST CONDITION MIN TYP MAX UNIT tpd(HL) High-to-low propagation delay (1) VDD = 24 V, ±10-mV input overdrive, RL = 100 kΩ, VOH = 0.9 × VDD, VOL = 250 mV 9.9 µs tpd(LH) Low-to-high propagation delay (1) VDD = 24 V, ±10-mV input overdrive, RL = 100 kΩ, VOH = 0.9 × VDD, VOL = 250 mV 28.1 µs Startup delay VDD = 5 V 155 µs tr Output rise time VDD = 12 V, 10-mV input overdrive, RL = 100 kΩ, CL = 10 pF, VO = (0.1 to 0.9) × VDD 2.7 µs tf Output fall time VDD = 12 V, 10-mV input overdrive, RL = 100 kΩ, CL = 10 pF, VO = (0.9 to 0.1) × VDD 0.12 µs td(start) (1) (2) (2) High-to-low and low-to-high refers to the transition at the input pin (SENSE). During power on, VDD must exceed 1.8 V for at least 150 µs (typ) before the output state reflects the input condition. VDD V(POR) VIT+ SENSE V HYS VIT± OUT t pd(LH) t pd(HL) t pd(LH) t d(start) Figure 1. Timing Diagram 6 Submit Documentation Feedback Copyright © 2015–2018, Texas Instruments Incorporated Product Folder Links: TPS3711 TPS3711 www.ti.com SBVS272A – NOVEMBER 2015 – REVISED SEPTEMBER 2018 6.7 Typical Characteristics 10 10 9 9 8 8 Minimum Pulse Width (Ps) Supply Current (PA) at TJ = 25°C and VDD = 12 V (unless otherwise noted) 7 6 5 4 3 TJ = -40°C TJ = 0°C TJ = 25°C TJ = 85°C TJ = 125°C 2 1 7 6 5 4 3 2 1 0 0 0 4 8 12 16 20 24 Supply Voltage (V) 28 32 36 0 5 10 15 20 25 30 Overdrive (%) 35 40 45 50 VDD = 24 V, minimum pulse duration required to trigger output high-to-low transition, SENSE = negative spike below VIT– Figure 3. Minimum Pulse Duration vs Threshold Overdrive Voltage Figure 2. Supply Current vs Supply Voltage 400 VDD = 1.8 V VDD = 12 V VDD = 36 V 408.5 408 Negative-Going Input Threshold (mV) Positive-Going Input Threshold (mV) 409 407.5 407 406.5 406 405.5 405 404.5 404 -40 -25 -10 5 20 35 50 65 Temperature (qC) 80 95 399.9 399.8 399.7 399.6 399.5 399.4 399.3 399.2 VDD = 1.8 V VDD = 12 V VDD = 36 V 399.1 399 -40 110 125 Figure 4. SENSE Positive Input Threshold Voltage (VIT+) vs Temperature -25 -10 5 20 35 50 65 Temperature (qC) 80 95 110 125 Figure 5. SENSE Negative Input Threshold Voltage (VIT–) vs Temperature 3500 4500 4000 3000 3500 3000 2000 Count Count 2500 1500 2500 2000 1500 1000 1000 500 500 VDD = 1.8 V 402 VIT- Threshold (mV) 401 400 399 398 408 VIT+ Threshold (mV) 407 406 405 0 404 0 VDD = 1.8 V Figure 6. SENSE Positive Input Threshold Voltage (VIT+) Distribution Figure 7. SENSE Negative Input Threshold Voltage (VIT–) Distribution Submit Documentation Feedback Copyright © 2015–2018, Texas Instruments Incorporated Product Folder Links: TPS3711 7 TPS3711 SBVS272A – NOVEMBER 2015 – REVISED SEPTEMBER 2018 www.ti.com Typical Characteristics (continued) at TJ = 25°C and VDD = 12 V (unless otherwise noted) 3 VDD = 1.8 V VDD = 36 V Low-to-High Propagation Delay (µs) High-to-Low Propagation Delay (µs) 12 10 8 6 4 -40 -25 -10 5 20 35 50 65 Temperature (qC) 80 95 2.5 2 1.5 1 0.5 VDD = 1.8V VDD = 36 V 0 -40 110 125 -25 -10 5 Input step ±200 mV 80 95 110 125 Input step ±200 mV Figure 8. Propagation Delay vs Temperature (High-to-Low Transition at SENSE) Figure 9. Propagation Delay vs Temperature (Low-to-High Transition at SENSE) 0.6 0.6 TJ = -40°C TJ = 0°C TJ = 25°C TJ = 85°C TJ = 125°C 0.5 TJ = -40°C TJ = 0°C TJ = 25°C TJ = 85°C TJ = 125°C 0.5 0.4 VOL (V) 0.4 VOL (V) 20 35 50 65 Temperature (qC) 0.3 0.3 0.2 0.2 0.1 0.1 0 0 0 1 2 3 4 5 6 7 Output Sink Current (mA) 8 9 10 0 1 2 VDD = 1.8 V 3 4 5 6 7 Output Sink Current (mA) 8 9 10 VDD = 12 V Figure 10. Output Voltage Low vs Output Sink Current Figure 11. Output Voltage Low vs Output Sink Current 195 Startup Delay (Ps) 180 165 150 135 120 -40 -25 -10 5 20 35 50 65 Temperature (qC) 80 95 110 125 VDD = 5 V Figure 12. Startup Delay vs Temperature 8 Submit Documentation Feedback Copyright © 2015–2018, Texas Instruments Incorporated Product Folder Links: TPS3711 TPS3711 www.ti.com SBVS272A – NOVEMBER 2015 – REVISED SEPTEMBER 2018 7 Detailed Description 7.1 Overview The TPS3711 combines a comparator and a precision reference for undervoltage detection. The TPS3711 features a wide supply voltage range (1.8 V to 36 V) and a high-accuracy threshold voltage of 400 mV (0.75% over temperature) with built-in hysteresis. The output is rated to 25 V and can sink up to 10 mA. Set the input pin (SENSE) to monitor any voltage above 0.4 V by using an external resistor divider network. SENSE has very low input leakage current, allowing the use of a large resistor divider without sacrificing system accuracy. The relationship between the input and the output is shown in Table 1. Broad voltage thresholds are supported that enable the device to be used in a wide array of applications. Table 1. Truth Table CONDITION OUTPUT SENSE > VIT+ OUT high Output high impedance STATUS SENSE < VIT– OUT low Output asserted 7.2 Functional Block Diagram VDD SENSE OUT VIT- GND Submit Documentation Feedback Copyright © 2015–2018, Texas Instruments Incorporated Product Folder Links: TPS3711 9 TPS3711 SBVS272A – NOVEMBER 2015 – REVISED SEPTEMBER 2018 www.ti.com 7.3 Feature Description 7.3.1 Input Pin (SENSE) The TPS3711 combines a comparator with a precision reference voltage. The comparator has one external input and one internal input connected to the internal reference. The falling threshold on SENSE is designed and trimmed to be equal to the reference voltage (400 mV). This configuration optimizes the device accuracy. The comparator also has built-in hysteresis that proves immunity to noise and ensures stable operation. The comparator input swings from ground to 6.5 V (7.0 V absolute maximum), regardless of the device supply voltage used. Although not required in most cases, it is good analog design practice to place a 1-nF to 10-nF bypass capacitor at the comparator input for noisy applications in order to reduce sensitivity to transient voltage changes on the monitored signal. For the comparator, the output (OUT) is driven to logic low when the input SENSE voltage drops below VIT–. When the voltage exceeds VIT+, OUT goes to a high-impedance state; see Figure 1. 7.3.2 Output Pin (OUT) In a typical TPS3711 application, the output is connected to a reset or enable input of the processor [such as a digital signal processor (DSP), application-specific integrated circuit (ASIC), or other processor type] or the output is connected to the enable input of a voltage regulator [such as a dc-dc converter or low-dropout regulator (LDO)]. The TPS3711 provides an open-drain output (OUT); use a pullup resistor to hold the line high when the output goes to a high-impedance state. Connect this pullup resistor to a voltage rail that meets the logic requirements of the downstream device. The TPS3711 output can be pulled up to 25 V, independent of the device supply voltage. To ensure the proper voltage level, give some consideration when choosing the pullup resistor value. The pullup resistor value is determined by VOL, output capacitive loading, and the open-drain leakage current (ID(leak)). These values are specified in the Electrical Characteristics table. Table 1 and the Input Pin (SENSE) section describe how the output is asserted or high impedance. See Figure 1 for a timing diagram that describes the relationship between threshold voltage and the respective output. 7.4 Device Functional Modes 7.4.1 Normal Operation (VDD > UVLO) When the voltage on VDD is greater than 1.8 V for at least 155 µs, the OUT signal corresponds to the voltage on SENSE, as listed in Table 1. 7.4.2 Undervoltage Lockout (V(POR) < VDD < UVLO) When the voltage on VDD is less than the device UVLO voltage, and greater than the power-on reset voltage, V(POR), the OUT signal is asserted regardless of the voltage on SENSE. 7.4.3 Power On Reset (VDD < V(POR)) When the voltage on VDD is lower than the required voltage to internally pull the asserted output to GND (V(POR)), OUT is in a high-impedance state. 10 Submit Documentation Feedback Copyright © 2015–2018, Texas Instruments Incorporated Product Folder Links: TPS3711 TPS3711 www.ti.com SBVS272A – NOVEMBER 2015 – REVISED SEPTEMBER 2018 8 Application and Implementation NOTE Information in the following applications sections is not part of the TI component specification, and TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining suitability of components for their purposes. Customers should validate and test their design implementation to confirm system functionality. 8.1 Application Information The TPS3711 is used as a precision voltage supervisor in several different configurations. The monitored voltage (VMON), VDD voltage, and output pullup voltage can be independent voltages or connected in any configuration. The following sections show the connection configurations and the voltage limitations for each configuration. 8.1.1 Input and Output Configurations Figure 13 to Figure 14 show examples of the various input and output configurations. 1.8 V to 25 V 0.01 F RP VDD R1 SENSE To a re set or ena ble input of the system OUT R2 GND Figure 13. Monitoring the Same Voltage as VDD 1.8 V to 36 V VMON 0.01 F R1 VPUL LU P 0 V to 25 V RP VDD SENSE OUT To a re set or ena ble input of the system R2 GND NOTE: The input can monitor a voltage higher than VDD (max) with the use of an external resistor divider network. Figure 14. Monitoring a Voltage Other than VDD Submit Documentation Feedback Copyright © 2015–2018, Texas Instruments Incorporated Product Folder Links: TPS3711 11 TPS3711 SBVS272A – NOVEMBER 2015 – REVISED SEPTEMBER 2018 www.ti.com Application Information (continued) 8.1.2 Immunity to Input Pin Voltage Transients The TPS3711 is immune to short voltage transient spikes on the input pin. Sensitivity to transients depends on both transient duration and amplitude; see Figure 3, Minimum Pulse Duration vs Threshold Overdrive Voltage. 8.2 Typical Application VMON 24 V 0.01 F VPUL LU P 3.3 V + ± 100 kŸ VDD 2 MŸ SENSE OUT To a re set or ena ble input of the system 37.4 kŸ GND Figure 15. 24-V, 10% Comparator 8.2.1 Design Requirements Table 2. Design Parameters PARAMETER DESIGN REQUIREMENT DESIGN RESULT Monitored voltage 24-V nominal, falling (VMON(UV)) threshold 10% nominal (21.6 V) VMON(UV) = 21.8 V ±2.7% Output logic voltage 3.3-V CMOS 3.3-V CMOS Maximum current consumption 30 µA 24 µA 8.2.2 Detailed Design Procedure 8.2.2.1 Resistor Divider Selection The resistor divider values and target threshold voltage can be calculated by using Equation 1 to determine VMON(UV). R1 · § VMON(UV) = ¨ 1 + × VIT R2 ¸¹ © where • • R1 and R2 are the resistor values for the resistor divider on the SENSE pin VMON(UV) is the target voltage at which an undervoltage condition is detected (1) Choose an RTOTAL ( = R1 + R2) so that the current through the divider is approximately 100 times higher than the input current at the SENSE pin. Use resistors with high values to minimize current consumption (as a result of low input bias current) without adding significant error to the resistive divider. For details on sizing input resistors, refer to application report SLVA450, Optimizing Resistor Dividers at a Comparator Input, available for download from www.ti.com. 12 Submit Documentation Feedback Copyright © 2015–2018, Texas Instruments Incorporated Product Folder Links: TPS3711 TPS3711 www.ti.com SBVS272A – NOVEMBER 2015 – REVISED SEPTEMBER 2018 8.2.2.2 Pullup Resistor Selection To ensure the proper logic-high voltage level (VHI), select a pullup resistor value where the pullup voltage divided by the pullup resistor value does not exceed the sink-current capability of the device. Confirm this voltage level by verifying that the pullup voltage minus the open-drain leakage current (ID(leak) ) multiplied by the resistor is greater than the desired VHI. These values are specified in the Electrical Characteristics . Use Equation 2 to calculate the value of the pullup resistor. VHI Vpullup Vpullup d RP d ID(leak) IOUT (2) 8.2.2.3 Input Supply Capacitor Although an input capacitor is not required for stability, for good analog design practice, connect a 0.1-μF low equivalent series resistance (ESR) capacitor across the VDD and GND pins. A higher-value capacitor may be necessary if large, fast rise-time load transients are anticipated, or if the device is not located close to the power source. 8.2.3 Application Curves 10 Minimum Pulse Width (Ps) 9 8 7 6 5 4 3 2 1 0 0 5 10 15 20 25 30 Overdrive (%) 35 40 45 50 Figure 16. 24-V Window Monitor Output Response Submit Documentation Feedback Copyright © 2015–2018, Texas Instruments Incorporated Product Folder Links: TPS3711 13 TPS3711 SBVS272A – NOVEMBER 2015 – REVISED SEPTEMBER 2018 www.ti.com 9 Power Supply Recommendations The TPS3711 has a 40-V absolute maximum rating on the VDD pin, with a recommended maximum operating condition of 36 V. If the voltage supply that provides power to VDD is susceptible to any large voltage transient that may exceed 40 V, or if the supply exhibits high voltage slew rates greater than 1 V/µs, then place an RC filter between the supply and VDD to filter any high-frequency transient surges on the VDD pin. In these cases, a 100-Ω resistor and 0.01-µF capacitor are required, as shown in Figure 17. 100 Ÿ 0.01 F + ± VPUL LU P R1 VDD SENSE OUT To a re set or ena ble input of the system R2 GND Figure 17. Using an RC Filter to Remove High-Frequency Disturbances on VDD 14 Submit Documentation Feedback Copyright © 2015–2018, Texas Instruments Incorporated Product Folder Links: TPS3711 TPS3711 www.ti.com SBVS272A – NOVEMBER 2015 – REVISED SEPTEMBER 2018 10 Layout 10.1 Layout Guidelines • • • Place R1 and R2 close to the device to minimize noise coupling into the SENSE node. Place the VDD decoupling capacitor close to the device. Avoid using long traces for the VDD supply node. The VDD capacitor (CVDD), along with parasitic inductance from the supply to the capacitor, might form an LC tank and create ringing with peak voltages above the maximum VDD voltage. If long traces are unavoidable, see Figure 17 for an example of filtering VDD. 10.2 Layout Example Pull up Voltage RP1 Output Flag R1 Monitored Voltage 1 6 2 5 3 4 CVDD Input Sup ply R2 Figure 18. Recommended Layout Submit Documentation Feedback Copyright © 2015–2018, Texas Instruments Incorporated Product Folder Links: TPS3711 15 TPS3711 SBVS272A – NOVEMBER 2015 – REVISED SEPTEMBER 2018 www.ti.com 11 Device and Documentation Support 11.1 Documentation Support 11.1.1 Related Documentation For related documentation, see the following application report, available through the TI website at www.ti.com: • Optimizing Resistor Dividers at a Comparator Input, SLVA450 11.2 Community Resources The following links connect to TI community resources. Linked contents are provided "AS IS" by the respective contributors. They do not constitute TI specifications and do not necessarily reflect TI's views; see TI's Terms of Use. TI E2E™ Online Community TI's Engineer-to-Engineer (E2E) Community. Created to foster collaboration among engineers. At e2e.ti.com, you can ask questions, share knowledge, explore ideas and help solve problems with fellow engineers. Design Support TI's Design Support Quickly find helpful E2E forums along with design support tools and contact information for technical support. 11.3 Trademarks E2E is a trademark of Texas Instruments. All other trademarks are the property of their respective owners. 11.4 Electrostatic Discharge Caution 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. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. 11.5 Glossary SLYZ022 — TI Glossary. This glossary lists and explains terms, acronyms, and definitions. 12 Mechanical, Packaging, and Orderable Information The following pages include mechanical, packaging, and orderable information. This information is the most current data available for the designated devices. This data is subject to change without notice and revision of this document. For browser-based versions of this data sheet, refer to the left-hand navigation. 16 Submit Documentation Feedback Copyright © 2015–2018, Texas Instruments Incorporated Product Folder Links: TPS3711 PACKAGE OPTION ADDENDUM www.ti.com 10-Dec-2020 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) Device Marking (3) (4/5) (6) TPS3711DDCR ACTIVE SOT-23-THIN DDC 6 3000 RoHS & Green NIPDAU Level-2-260C-1 YEAR -40 to 125 11BO TPS3711DDCT ACTIVE SOT-23-THIN DDC 6 250 RoHS & Green NIPDAU Level-2-260C-1 YEAR -40 to 125 11BO (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. 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) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may reference these types of products as "Pb-Free". RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption. Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of
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