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TLV4041R2YKAR

TLV4041R2YKAR

  • 厂商:

    BURR-BROWN(德州仪器)

  • 封装:

    XFBGA4

  • 描述:

    PWR MGMT VOLTAGE REFERENCE

  • 数据手册
  • 价格&库存
TLV4041R2YKAR 数据手册
Product Folder Order Now Support & Community Tools & Software Technical Documents TLV4021, TLV4031, TLV4041, TLV4051 SNVSB04B – MARCH 2019 – REVISED JUNE 2020 TLV40x1 Small-Size, Low-Power Comparator with Precision Reference 1 Features 3 Description • • • • The TLV40x1 devices are low-power, high-accuracy comparators with precision references and fast response. The comparators are available in an ultrasmall, DSBGA package measuring 0.73 mm × 0.73 mm, making the TLV40x1 applicable for space-critical designs like portable or battery-powered electronics where low-power and fast response to changes in operating conditions is required. 1 • • • • • • • • Wide supply voltage range: 1.6 V to 5.5 V Precision References: 0.2 V, 0.5 V, and 1.2 V Fixed threshold of 3.2 V Reference accuracy – 0.5% at 25°C – 1% over temperature Low quiescent current: 2 µA Propagation delay: 360 ns Push-pull and open-drain output options Known startup conditions Non-inverting and inverting input options Precision hysteresis Temperature range: –40°C to +125°C Packages: – 0.73 mm × 0.73 mm DSBGA (4-bump) – SOT-23 (5-pin) The factory-trimmed references and precision hysteresis combine to make the TLV40x1 appropriate for voltage and current monitoring in harsh, noisy environments where slow moving input signals must be converted into clean digital outputs. Similarly, brief glitches on the input are rejected ensuring stable output operation without false triggering. The TLV40x1 are available in multiple configurations allowing system designers to achieve their desired output response. For example, the TLV4021 and TLV4041 offer a non-inverting input, while the TLV4031 and TLV4051 have an inverting input. Furthermore, the TLV4021 and TLV4031 feature an open-drain output stage, while the TLV4041 and TLV4051 feature a push-pull output stage. Lastly, each comparator in the TLV40x1 family is available with a 0.2V, 0.5V, or 1.2V precision reference. 2 Applications • • • • • • • • Mobile phones and tablets Headsets/headphones & earbuds PC & notebooks Gas detector Smoke & heat detector Motion detector Gas meter Servo drive position sensor Device Information PART NUMBER PACKAGE (1) BODY SIZE (NOM) TLV4021, TLV4031, TLV4041, TLV4051 DSBGA (4) 0.73 mm × 0.73 mm TLV4041, TLV4051 SOT-23 (5) 2.9 mm × 1.6 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. TLV40x1 Configurations Non-Inverting Inverting V+ IN IN V+ OUT IN t t + TLV4021 TLV4041 + TLV4031 TLV4051 REF s5 V+ OUT + REF Fixed Threshold s5 t TLV4021S5 1.2V s5 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. UNLESS OTHERWISE NOTED, this document contains PRODUCTION DATA. TLV4021, TLV4031, TLV4041, TLV4051 SNVSB04B – MARCH 2019 – REVISED JUNE 2020 www.ti.com Table 1. TLV40x1 Truth Table DEVICE Input Configuration Reference TLV4021R1 TLV4041R5 Non-Inverting Push-Pull Open-Drain 0.2 V TLV4041R2 TLV4031R1 Push-Pull Open-Drain 1.2 V TLV4051R1 TLV4051R5 Inverting Push-Pull 0.5 V TLV4031R2 Push-Pull Open-Drain 0.2 V TLV4051R2 Push-Pull DEVICE Input Configuration Fixed Threshold Output Type TLV4021S5 Non-Inverting 3.2 V Open-Drain VPU VPU TLV4021R2 TLV4041R2 TLV4021R1 IN OUT + IN t OUT + t t 1.2V s5 VPU VPU TLV4051R2 TLV4031R1 V+ V+ t OUT IN t + IN OUT OUT 1.2V s5 t + s5 s5 IN 0.2V 1.2V 0.2V V+ + V+ TLV4051R1 t TLV4031R2 OUT OUT + s5 s5 s5 IN 0.2V 1.2V 0.2V V+ + OUT t TLV4041R1 V+ V+ V+ IN Push-Pull 0.5 v TLV4021R2 + Open-Drain 1.2 V TLV4041R1 IN Output Type s5 VPU TLV4041R5 TLV4051R5 TLV4021S5 V+ V+ V+ t OUT + t 1.2V 1.2V s5 IN t IN + OUT + IN 1.2V s5 s5 2 Submit Documentation Feedback Copyright © 2019–2020, Texas Instruments Incorporated Product Folder Links: TLV4021 TLV4031 TLV4041 TLV4051 TLV4021, TLV4031, TLV4041, TLV4051 www.ti.com SNVSB04B – MARCH 2019 – REVISED JUNE 2020 Table of Contents 1 2 3 4 5 6 7 Features .................................................................. Applications ........................................................... Description ............................................................. Revision History..................................................... Pin Configuration and Functions ......................... Specifications......................................................... 1 1 1 3 4 5 6.1 6.2 6.3 6.4 6.5 6.6 6.7 5 5 5 5 6 8 9 Absolute Maximum Ratings ...................................... ESD Ratings.............................................................. Recommended Operating Conditions....................... Thermal Information .................................................. Electrical Characteristics........................................... Switching Characteristics .......................................... Typical Characteristics .............................................. Detailed Description ............................................ 15 7.1 Overview ................................................................. 15 7.2 Functional Block Diagram ....................................... 16 7.3 Feature Description................................................. 17 7.4 Device Functional Modes........................................ 17 8 Application and Implementation ........................ 20 8.1 Application Information............................................ 20 8.2 Typical Application .................................................. 22 8.3 What to Do and What Not to Do ............................ 24 9 Power Supply Recommendations...................... 25 10 Layout................................................................... 25 10.1 Layout Guidelines ................................................. 25 10.2 Layout Example .................................................... 25 11 Device and Documentation Support ................. 26 11.1 11.2 11.3 11.4 11.5 11.6 Related Links ........................................................ Receiving Notification of Documentation Updates Community Resources.......................................... Trademarks ........................................................... Electrostatic Discharge Caution ............................ Glossary ................................................................ 26 26 26 26 26 26 12 Mechanical, Packaging, and Orderable Information ........................................................... 27 4 Revision History Changes from Revision A (May 2019) to Revision B Page • Added SOT-23 package option with 0.5V reference. ............................................................................................................ 1 • Changed configuration diagram and TLV40x1 Truth Table. ................................................................................................. 1 • Added Configuration diagrams for entire TLV40x1 family...................................................................................................... 2 Changes from Original (October 2018) to Revision A • Page Changed Product Preview to Production Data ...................................................................................................................... 1 Copyright © 2019–2020, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Links: TLV4021 TLV4031 TLV4041 TLV4051 3 TLV4021, TLV4031, TLV4041, TLV4051 SNVSB04B – MARCH 2019 – REVISED JUNE 2020 www.ti.com 5 Pin Configuration and Functions YKA Package 4-Bump DSBGA Top View Top View A OUT IN B V+ V- 1 2 DSBGA Package Pin Functions PIN I/O DESCRIPTION NAME NUMBER OUT A1 O Comparator output: OUT is push-pull on TLV4041/4051 and open-drain on TLV4021/4031 V+ B1 P Positive (highest) power supply V– B2 P Negative (lowest) power supply IN A2 I Comparator input: IN is non-Inverting on TLV4021/4041 and inverting on TLV4031/4051 SOT-23 Package 5-pin Top View Top View V+ 1 V- 2 NC 3 5 OUT 4 IN SOT-23 Pin Functions PIN 4 I/O DESCRIPTION NAME NUMBER V+ 1 P Positive (highest) power supply V– 2 P Negative (lowest) power supply NC 3 x No connect; this pin is not internally connected to the die. It can be grounded if that is preferred in the system. IN 4 I Comparator input: IN is inverting on TLV4051 OUT 5 O Comparator output: OUT is push-pull Submit Documentation Feedback Copyright © 2019–2020, Texas Instruments Incorporated Product Folder Links: TLV4021 TLV4031 TLV4041 TLV4051 TLV4021, TLV4031, TLV4041, TLV4051 www.ti.com SNVSB04B – MARCH 2019 – REVISED JUNE 2020 6 Specifications 6.1 Absolute Maximum Ratings over operating free-air temperature range (unless otherwise noted) (1) Supply voltage: VS = (V+) – (V–) Input voltage (IN) from (V–) (2) MIN MAX –0.3 6 –0.3 6 Input Current (IN) (2) –0.3 6 V TLV4041, TLV4051 –0.3 (V+) + 0.3 V Junction temperature, TJ Storage temperature, Tstg (3) V mA TLV4021, TLV4031 Output short-circuit duration (3) (2) V ±10 Output voltage (OUT) from (V-) (1) UNIT –65 10 s 150 °C 150 °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. Input terminals are diode-clamped to (V–). Input signals that can swing more than 0.3 V below (V–) must be current-limited to 10 mA or less. In addition, IN can be greater than (V+) and OUT as long as it is within the –0.3 V to 6 V range. Input signals that can swing beyond this range must be current-limited to 10 mA or less. Short-circuit to ground. 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) ±1000 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 free-air temperature range (unless otherwise noted) MIN MAX Supply voltage: VS = (V+) – (V–) 1.6 5.5 UNIT V Ambient temperature, TA –40 125 °C 6.4 Thermal Information TLV40x1 THERMAL METRIC (1) YKA (DSBGA) SOT-23 (DBV) 4 BUMPS 5 PINS UNIT RθJA Junction-to-ambient thermal resistance 205.5 181.7 °C/W RθJC(top) Junction-to-case (top) thermal resistance 1.8 101.1 °C/W RθJB Junction-to-board thermal resistance 75.3 52.0 °C/W ψJT Junction-to-top characterization parameter 0.9 28.2 °C/W ψJB Junction-to-board characterization parameter 74.7 51.6 °C/W RθJC(bot) Junction-to-case (bottom) thermal resistance N/A N/A °C/W (1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report. Copyright © 2019–2020, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Links: TLV4021 TLV4031 TLV4041 TLV4051 5 TLV4021, TLV4031, TLV4041, TLV4051 SNVSB04B – MARCH 2019 – REVISED JUNE 2020 www.ti.com 6.5 Electrical Characteristics VS = 1.8 V to 5 V, typical values are at TA = 25°C. PARAMETER VIT+ VIT- VIT+ VIT- VIT+ VIT- VIT+ VIT(1) VHYS VHYS (1) VHYS TEST CONDITIONS TYP MAX 1.194 1.2 1.206 UNIT VS = 1.8 V and 5 V, TA = 25°C Postive-going input threshold voltage VS = 1.8 V and 5 V, TA = -40℃ to +125℃ Negative-going input threshold voltage VS = 1.8 V and 5 V, TA = 25°C 1.174 Negative-going input threshold voltage VS = 1.8 V and 5 V, TA = -40°C to +125°C 1.168 Postive-going input threshold voltage VS = 1.8 V and 5 V, TA = 25°C 0.197 Postive-going input threshold voltage VS = 1.8 V and 5 V, TA = -40℃ to +125℃ Negative-going input threshold voltage VS = 1.8 V and 5 V, TA = 25°C 0.177 Negative-going input threshold voltage VS = 1.8 V and 5 V, TA = -40°C to +125°C 0.176 Postive-going input threshold voltage (TLV40x1R5 only) VS = 1.8 V and 5 V, TA = 25°C 0.495 Postive-going input threshold voltage (TLV40x1R5 only) VS = 1.8 V and 5 V, TA = -40℃ to +125℃ Negative-going input threshold voltage (TLV40x1R5 only) VS = 1.8 V and 5 V, TA = 25°C 0.4752 Negative-going input threshold voltage (TLV40x1R5 only) VS = 1.8 V and 5 V, TA = -40°C to +125°C 0.4704 Postive-going input threshold voltage VS = 1.8 V and 5 V, TA = 25°C Postive-going input threshold voltage VS = 1.8 V and 5 V, TA = -40℃ to +125℃ Negative-going input threshold voltage VS = 1.8 V and 5 V, TA = 25°C 3.184 Negative-going input threshold voltage VS = 1.8 V and 5 V, TA = -40℃ to +125℃ 3.168 Input hysteresis voltage VS = 1.8 V and 5 V, TA = 25℃ TLV40x1Ry 20 mV Input hysteresis voltage (TLV40x1R5 only) VS = 1.8 V and 5 V, TA = 25℃ TLV40x1R5 20 mV TLV40x1S5 1.212 V 1.18 1.186 1.192 0.2 0.196 0.203 0.204 TLV40x1R2 V 0.18 0.183 0.184 0.5 0.49 0.505 V 0.51 V 0.4848 V 0.4896 V 3.270 V 3.287 V 3.216 V 3.232 V TLV40x1R5 3.238 0.48 3.254 3.221 TLV4021S5 Input hysteresis voltage VS = 1.8 V and 5 V, TA = 25°C Input voltage range TA = -40℃ to +125℃ IBIAS Input bias current Over VIN range IBIAS Input bias current (TLV4021S5 only) IN = 3.3 V VOL Voltage output swing from (V–) Voltage output swing from (V+) (TLV4041/4051 only) 1.188 TLV40x1R1 VIN VOH MIN Postive-going input threshold voltage 3.2 54 V– mV 5.5 V 10 pA 1.65 µA ISINK = 200 µA, OUT asserted low, VS = 5 V, TA = –40°C to +125°C 100 mV ISINK = 3 mA, OUT asserted low, VS = 5 V, TA = –40°C to +125°C 400 mV ISOURCE = 200 µA, OUT asserted high, VS = 5 V, TA = –40°C to +125°C 100 mV ISOURCE = 3 mA, OUT asserted high, VS = 5 V, TA = –40°C to +125°C 400 mV IO-LKG Open-drain output leakage current (TLV4021/4031 only) VS = 5 V, OUT asserted high VPULLUP = (V+), TA = 25°C 20 pA ISC Short-circuit current VS = 5 V, sinking, TA = 25°C 55 mA Short-circuit current VS = 5 V, sourcing, TA = 25°C (TLV4041/4051 only) 50 mA ISC (1) 6 See Section 7.4.3 (Switching Thresholds and Hysteresis) for more details. Submit Documentation Feedback Copyright © 2019–2020, Texas Instruments Incorporated Product Folder Links: TLV4021 TLV4031 TLV4041 TLV4051 TLV4021, TLV4031, TLV4041, TLV4051 www.ti.com SNVSB04B – MARCH 2019 – REVISED JUNE 2020 Electrical Characteristics (continued) VS = 1.8 V to 5 V, typical values are at TA = 25°C. PARAMETER IQ Quiescent current VPOR (2) Power-on reset voltage (2) TEST CONDITIONS MIN No load, TA = 25°C, Output Low, VS = 1.8 V TYP MAX 2 3.5 µA 5 µA No load, TA = –40°C to +125°C, Output Low, VS = 1.8 V 1.45 UNIT V See Section 7.4.1 (Power ON Reset) for more details. Copyright © 2019–2020, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Links: TLV4021 TLV4031 TLV4041 TLV4051 7 TLV4021, TLV4031, TLV4041, TLV4051 SNVSB04B – MARCH 2019 – REVISED JUNE 2020 www.ti.com 6.6 Switching Characteristics Typical values are at TA = 25°C, VS = 3.3 V, CL = 15 pF; Input overdrive = 100 mV for TLV40x1Ry & 5% for TLV4021S5, RP=4.99 kΩ for open-drain options (unless otherwise noted). PARAMETER TEST CONDITIONS MIN TYP MAX UNIT tPHL Propagation delay, high-to-low (1) Midpoint of input to midpoint of output 360 ns tPLH Propagation delay, low-to-high (1) Midpoint of input to midpoint of output 360 ns tPHL Propagation delay, high-to-low (1) (TLV4021S5 only) Midpoint of input to midpoint of output 2 µs tPLH Propagation delay, low-tohigh (1)(TLV4021S5 only) Midpoint of input to midpoint of output 2 µs tR Rise time (TLV4041/4051 only) 20% to 80% 10 ns tF Fall time 20% to 80% tON Power-up time (1) (2) (2) 10 ns 500 µs High-to-low and low-to-high refers to the transition at the input. During power on cycle, VS must exceed 1.6 V for tON before the output will reflect the condition on the input. Prior to tON elapsing, the output is controlled by the POR circuit. VIT+ VHYS V/d5 IN tPHL tPLH OUT Figure 1. Timing Diagram Non-Inverting Input 8 Submit Documentation Feedback Copyright © 2019–2020, Texas Instruments Incorporated Product Folder Links: TLV4021 TLV4031 TLV4041 TLV4051 TLV4021, TLV4031, TLV4041, TLV4051 www.ti.com SNVSB04B – MARCH 2019 – REVISED JUNE 2020 6.7 Typical Characteristics at TJ = 25°C and VS = 3.3 V (unless otherwise noted) 1.2012 VS = 1.8V VS = 3.3V VS = 5.0V 1.2009 1.2006 Device Count VIT+ (V) 1.2003 1.2 1.1997 1.1994 1.1991 1.1988 1.1985 -40 -20 0 20 40 60 80 Temperature (°C) 100 120 140 TLV40x1R1 21000 19500 18000 16500 15000 13500 12000 10500 9000 7500 6000 4500 3000 1500 0 1.198 1.1986 VS = 1.8V VS = 3.3V VS = 5.0V 1.1808 1.1805 Device Count VIT- (V) 1.1802 1.1799 1.1796 1.1793 1.179 1.1787 1.1784 0 20 40 60 80 Temperature (°C) 100 120 140 TLV40x1R1 21000 19500 18000 16500 15000 13500 12000 10500 9000 7500 6000 4500 3000 1500 0 1.1778 Figure 4. Negative Threshold vs Temperature VS = 5 V 1.1784 1.179 1.1796 1.1802 VIT- (V) 1.1808 1.1814 VS = 5 V Figure 5. Negative Threshold Histogram 20000 VS = 1.8V VS = 3.3V VS = 5.0V 20.56 20.48 18000 16000 14000 Device Count 20.4 VHYST (mV) 1.2016 TLV40x1R1 20.64 20.32 20.24 20.16 12000 10000 8000 6000 20.08 4000 20 2000 19.92 -40 1.201 Figure 3. Positive Threshold Histogram 1.1811 -20 1.1998 1.2004 VIT+ (V) TLV40x1R1 Figure 2. Positive Threshold vs Temperature 1.1781 -40 1.1992 -20 0 20 40 60 80 Temperature (°C) 100 120 TLV40x1R1 140 0 17 18 19 20 VHYST (mV) 21 TLV40x1R1 Figure 6. Hysteresis vs Temperature Copyright © 2019–2020, Texas Instruments Incorporated 22 23 VS = 5 V Figure 7. Hysteresis Histogram Submit Documentation Feedback Product Folder Links: TLV4021 TLV4031 TLV4041 TLV4051 9 TLV4021, TLV4031, TLV4041, TLV4051 SNVSB04B – MARCH 2019 – REVISED JUNE 2020 www.ti.com Typical Characteristics (continued) at TJ = 25°C and VS = 3.3 V (unless otherwise noted) 30000 0.2004 VS = 1.8V VS = 3.3V VS = 5.0V 0.20025 27000 24000 0.2001 Device Count 21000 VIT+ (V) 0.19995 0.1998 0.19965 18000 15000 12000 9000 0.1995 6000 0.19935 3000 0.1992 -40 -20 0 20 40 60 80 Temperature (°C) 100 120 0 0.198 140 TLV40x1R2 Figure 8. Positive Threshold vs Temperature VS = 5 V 27000 24000 Device Count VIT- (V) 0.2016 21000 0.17992 0.17984 0.17976 0.17968 18000 15000 12000 9000 0.1796 6000 0.17952 3000 -20 0 20 40 60 80 Temperature (°C) 100 120 0 0.1776 140 TLV40x1R2 0.1784 0.1792 0.18 VIT- (V) 0.1808 0.1816 TLV40x1R2 Figure 10. Negative Threshold vs Temperature VS = 5 V Figure 11. Negative Threshold Histogram 500 20.22 VS = 1.8V VS = 3.3V VS = 5.0V 20.2 20.18 450 400 20.16 350 20.14 Device Count VHYST (mV) 0.201 Figure 9. Positive Threshold Histogram VS = 1.8V VS = 3.3V VS = 5.0V 0.18 20.12 20.1 20.08 300 250 200 150 20.06 20.04 100 20.02 50 -20 0 20 40 60 80 Temperature (°C) 100 120 TLV40x1R2 140 0 17 18 19 20 VHYST (mV) 21 22 TLV40x1R2 Figure 12. Hysteresis vs Temperature 10 0.1998 0.2004 VIT+ (V) 30000 0.18008 20 -40 0.1992 TLV40x1R2 0.18016 0.17944 -40 0.1986 Submit Documentation Feedback 23 VS = 5 V Figure 13. Hysteresis Histogram Copyright © 2019–2020, Texas Instruments Incorporated Product Folder Links: TLV4021 TLV4031 TLV4041 TLV4051 TLV4021, TLV4031, TLV4041, TLV4051 www.ti.com SNVSB04B – MARCH 2019 – REVISED JUNE 2020 Typical Characteristics (continued) 3.2545 3.254 3.2535 3.253 3.2525 3.252 3.2515 3.251 3.2505 3.25 3.2495 3.249 3.2485 3.248 -40 25000 22500 20000 17500 Device Count VIT+ (V) at TJ = 25°C and VS = 3.3 V (unless otherwise noted) 15000 12500 10000 7500 5000 VS = 1.8V VS = 3.3V VS = 5.0V -20 0 20 40 60 80 Temperature (°C) 100 120 2500 0 3.2475 140 TLV4021S5 3.2565 3.2595 Figure 15. Positive Threshold Histogram 25000 22500 20000 17500 Device Count VIT- (mV) 3.2535 VIT+ (V) TLV4021S5 Figure 14. Positive Threshold vs Temperature 3.2015 3.201 3.2005 3.2 3.1995 3.199 3.1985 3.198 3.1975 3.197 3.1965 3.196 3.1955 3.195 3.1945 -40 3.2505 15000 12500 10000 7500 5000 VS = 1.8V VS = 3.3V VS = 5.0V -20 0 20 40 60 80 Temperature (°C) 100 120 2500 0 3.196 140 TLV4021S5 3.1975 3.199 3.2005 VIT- (V) 3.202 3.2035 3.205 TLV4021S5 Figure 16. Negative Threshold vs Temperature Figure 17. Negative Threshold Histogram 53.8 18000 16000 53.6 14000 Device Count VHYST (mV) 53.4 53.2 53 52.8 -40°C 25°C 85°C 125°C 52.6 52.4 1.5 2 2.5 3 3.5 VS (V) 4 4.5 5 TLV4021S5 5.5 12000 10000 8000 6000 4000 2000 0 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 Hysteresis (mV) TLV4021S5 Figure 18. Hysteresis vs Supply Voltage Copyright © 2019–2020, Texas Instruments Incorporated Figure 19. Hysteresis Histogram Submit Documentation Feedback Product Folder Links: TLV4021 TLV4031 TLV4041 TLV4051 11 TLV4021, TLV4031, TLV4041, TLV4051 SNVSB04B – MARCH 2019 – REVISED JUNE 2020 www.ti.com Typical Characteristics (continued) 5000 5000 1000 1000 100 100 10 1 -40°C 25°C 85°C 125°C 0.1 IO-LKG (pA) IBIAS (pA) at TJ = 25°C and VS = 3.3 V (unless otherwise noted) 1 0.01 0.2 0.3 0.5 0.7 1 VIN (V) VS = 1.8V to 5V 2 3 0.001 -40 4 5 6 7 8 10 20 40 60 80 Temperature (°C) 100 120 140 Figure 21. Output Current Leakage vs Temperature 2 2 1 1 0.7 0.5 0.5 0.3 0.2 0.1 0.05 0.03 0.02 -40°C 0°C 25°C 125°C 0.005 0.1 0.2 0.3 0.5 0.3 0.2 0.1 0.07 0.05 -40°C 0°C 25°C 125°C 0.03 0.02 0.01 0.1 1 2 3 4 5 67 10 20 30 50 70100 Output Sinking Current (mA) VS = 1.8V 0.2 0.3 0.5 1 2 3 4 5 67 10 20 30 50 70100 Output Sourcing Current (mA) VS = 1.8V Figure 22. Output Voltage vs Output Sinking Current Figure 23. Output Voltage vs Output Sourcing Current 5 3 2 1 0.5 0.3 0.2 0.1 0.05 0.03 0.02 -40°C 0°C 25°C 125°C 0.01 0.005 0.1 0.2 0.3 0.5 1 2 3 4 5 67 10 20 30 50 70100 Output Sinking Current (mA) VS = 3.3V Output Voltage from V+ (V) 5 3 2 Output Voltage from V- (V) 0 Figure 20. Bias Current vs Common Mode Voltage 0.01 1 0.5 0.3 0.2 0.1 0.05 0.03 0.02 -40°C 0°C 25°C 125°C 0.01 0.005 0.1 0.2 0.3 0.5 1 2 3 4 5 67 10 20 30 50 70100 Output Sourcing Current (mA) VS = 3.3V Figure 24. Output Voltage vs Output Sinking Current 12 -20 TLV40x1Ry Output Voltage from V+ (V) Output Voltage from V- (V) 10 0.1 0.01 0.001 0.1 VS = 1.8V VS = 3.3V VS = 5V Submit Documentation Feedback Figure 25. Output Voltage vs Output Sourcing Current Copyright © 2019–2020, Texas Instruments Incorporated Product Folder Links: TLV4021 TLV4031 TLV4041 TLV4051 TLV4021, TLV4031, TLV4041, TLV4051 www.ti.com SNVSB04B – MARCH 2019 – REVISED JUNE 2020 Typical Characteristics (continued) at TJ = 25°C and VS = 3.3 V (unless otherwise noted) 10 5 5 Output Voltage from V- (V) 2 1 0.5 0.2 0.1 0.05 -40°C 0°C 25°C 125°C 0.02 0.01 0.005 0.1 0.2 0.3 0.5 Output Voltage from V+ (V) 10 2 1 0.5 0.2 0.1 0.05 0.01 0.005 0.1 1 2 3 4 5 67 10 20 30 50 70100 Output Sinking Current (mA) VS = 5V Figure 26. Output Voltage vs Output Sinking Current Figure 27. Output Voltage vs Output Sourcing Current 3 2.8 tpLH (ns) IQ (uA) 2.6 2.4 2.2 2 1.8 VS = 1.8V VS = 3.3V VS = 5V 1.6 -20 0.2 0.3 0.5 1 2 3 4 5 67 10 20 30 50 70100 Output Sourcing Current (mA) VS = 5V 3.2 1.4 -40 -40°C 0°C 25°C 125°C 0.02 0 20 40 60 80 Temperature (°C) 100 120 1500 1400 1300 1200 1100 1000 900 800 700 600 500 400 300 200 -40°C 25°C 85°C 125°C 0 140 20 40 60 80 100 120 140 160 180 200 220 VOD (mV) VS = 1.8V to 5V Figure 28. Supply Current vs Temperature Figure 29. Propagation Delay Low-High vs Input Overdrive 6 2400 -40°C 25°C 85°C 125°C 2200 2000 1800 -40°C 25°C 85°C 125°C 5.5 5 4.5 tpLH (us) 1600 tpHL (ns) TLV40x1R2 1400 1200 1000 4 3.5 3 2.5 800 600 2 400 1.5 200 1 0 20 40 60 80 100 120 140 160 180 200 220 VOD (mV) VS = 1.8V to 5V TLV40x1R2 Figure 30. Propagation Delay High-Low vs Input Overdrive Copyright © 2019–2020, Texas Instruments Incorporated 0 1 2 3 4 VS = 1.8V to 5V 5 6 VOD (%) 7 8 9 10 11 TLV4021S5 Figure 31. Propagation Delay Low-High vs Input Overdrive Submit Documentation Feedback Product Folder Links: TLV4021 TLV4031 TLV4041 TLV4051 13 TLV4021, TLV4031, TLV4041, TLV4051 SNVSB04B – MARCH 2019 – REVISED JUNE 2020 www.ti.com Typical Characteristics (continued) tpHL (us) at TJ = 25°C and VS = 3.3 V (unless otherwise noted) 7.5 7 6.5 6 5.5 5 4.5 4 3.5 3 2.5 2 1.5 1 -40°C 25°C 85°C 125°C 0 1 2 3 4 5 6 VOD (%) 7 8 9 10 11 VS = 1.8V to 5V TLV4021S5 Figure 32. Propagation Delay High-Low vs Input Overdrive 14 Submit Documentation Feedback Copyright © 2019–2020, Texas Instruments Incorporated Product Folder Links: TLV4021 TLV4031 TLV4041 TLV4051 TLV4021, TLV4031, TLV4041, TLV4051 www.ti.com SNVSB04B – MARCH 2019 – REVISED JUNE 2020 7 Detailed Description 7.1 Overview The TLV40x1 devices are low-power comparators that are well suited for compact, low-current, precision voltage detection applications. With high-accuracy, switching thresholds options of 0.2V, 0.5 V, 1.2V, and 3.2V, 2uA of quiescent current, and propagation delay of 450ns and 2us, the TLV40x1 comparator family enables power conscious systems to monitor and respond quickly to fault conditions. The TLV40x1Ry comparators assert the output signal as shown in Table 2. VIT+ represents the positive-going input threshold that causes the comparator output to change state, while VIT- represents the negative-going input threshold that causes the output to change state. Since VIT+ and VIT- are factory trimmed and warranted over temperature, the TLV40x1 is equally suited for undervoltage and overvoltage applications. In order to monitor any voltage above the internal reference voltage, an external resistor divider network is required. The TLV4021S5 functions similar to the TLV40x1Ry comparators except the resistor divider is internal to the device. Having the resistor divider internal to the device allows the TLV4021S5 to have switching thresholds higher than the internal reference voltage of 1.2V without any external components. Table 2. TLV40x1 Truth Table DEVICE (VIT+, VIT-) OUTPUT TOPOLOGY TLV4021R2 TLV4021R1 0.2V, 0.18V 1.2V, 1.18V TLV4041R2 TLV4041R5 TLV4041R1 0.2V, 0.18V 0.5V, 0.48V 1.2V, 1.18V Push-Pull TLV4031R2 TLV4031R1 0.2V, 0.18V 1.2V, 1.18V Open-Drain TLV4051R2 TLV4051R5 TLV4051R1 0.2V, 0.18V 0.5V, 0.48V 1.2V, 1.18V Push-Pull TLV4021S5 3.254V, 3.2V Open-Drain Copyright © 2019–2020, Texas Instruments Incorporated Open-Drain INPUT VOLTAGE OUTPUT LOGIC LEVEL IN > VIT+ Output high impedance IN < VIT- Output asserted low IN > VIT+ Output asserted high IN < VIT- Output asserted low IN > VIT+ Output asserted low IN < VIT- Output high impedance IN > VIT+ Output asserted low IN < VIT- Output asserted high IN > VIT+ Output high impedance IN < VIT- Output asserted low Submit Documentation Feedback Product Folder Links: TLV4021 TLV4031 TLV4041 TLV4051 15 TLV4021, TLV4031, TLV4041, TLV4051 SNVSB04B – MARCH 2019 – REVISED JUNE 2020 www.ti.com 7.2 Functional Block Diagram VPU VPU TLV4021R2 IN t OUT + OUT + t t 1.2V s5 VPU VPU TLV4051R2 TLV4031R1 V+ V+ t OUT IN t + IN OUT OUT 1.2V s5 t + s5 s5 IN 0.2V 1.2V 0.2V V+ + V+ TLV4051R1 t TLV4031R2 OUT OUT + s5 s5 s5 IN 0.2V 1.2V 0.2V IN IN t V+ + OUT + TLV4041R1 V+ V+ V+ IN TLV4041R2 TLV4021R1 s5 VPU TLV4041R5 TLV4051R5 TLV4021S5 V+ V+ V+ t OUT + t 1.2V 1.2V s5 IN t IN + OUT + IN 1.2V s5 s5 16 Submit Documentation Feedback Copyright © 2019–2020, Texas Instruments Incorporated Product Folder Links: TLV4021 TLV4031 TLV4041 TLV4051 TLV4021, TLV4031, TLV4041, TLV4051 www.ti.com SNVSB04B – MARCH 2019 – REVISED JUNE 2020 7.3 Feature Description The TLV40x1 is a family of 4-pin, precision, low-power comparators with precision switching thresholds. The TLV40x1 comparators feature a rail-to-rail input stage with factory programmed switching thresholds for both rising and falling input waveforms. The comparator family also supports open-drain and push-pull output configurations as well as non-inverting and inverting inputs. 7.4 Device Functional Modes 7.4.1 Power ON Reset (POR) The TLV40x1 comparators have a Power-on-Reset (POR) circuit which provides system designers a known start-up condition for the output of the comparators. When the power supply (VS) is ramping up or ramping down, the POR circuit will be active when VS is below VPOR. For the TLV4021 and TLV4031, the POR circuit will force the output to High-Z, and for the TLV4041 and TLV4051, the POR circuit will hold the output low at (V-). When VS is greater than, or equal to, the minimum recommended operating voltage, the comparator output reflects the state of the input (IN). The following pictures represent how the TLV40x1 outputs respond for VS rising and falling. For the comparators with open-drain outputs (TLV4021/4031), IN is connected to (V-) to highlight the transition from POR circuit control to standard comparator operation where the output reflects the input condition. Note how the output goes low when VS reaches 1.45V. Likewise, for the comparators with push-pull outputs (TLV4041/4051), the input is connected to (V+). Note how the output goes high when VS reaches 1.45V. 5 5 VS VOUT 4 4 3.5 3.5 3 2.5 2 1.5 2 1.5 1 1 0.5 0 0 -0.5 -0.3 -0.2 -0.1 0 0.1 0.2 0.3 Time (s) 0.4 0.5 0.6 0.7 -0.5 -0.05 -0.04 -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04 0.05 Time (s) 0.8 Figure 33. TLV4021/4031 Output for VS Rising Figure 34. TLV4021/4031 Output for VS Falling 5.5 5.5 5 5 4.5 4.5 4 4 3.5 3.5 Voltage (V) Voltage (V) 3 2.5 0.5 3 2.5 2 VS VOUT 3 2.5 2 1.5 1.5 1 1 0.5 0.5 VS VOUT 0 -0.5 -0.5 VS VOUT 4.5 Voltage (V) Voltage (V) 4.5 -0.4 -0.3 -0.2 -0.1 0 0.1 Time (s) 0.2 0.3 0.4 0.5 Figure 35. TLV4041/4051 Output for VS Rising 0 -0.5 -0.05 -0.03 -0.01 0.01 Time (s) 0.03 0.05 Figure 36. TLV4041/4051 Output for VS Falling 7.4.2 Input (IN) The TLV40x1 comparators have two inputs: one external input (IN) and one internal input that is connected to the integrated voltage reference. The comparator rising threshold is trimmed to the reference voltage (VIT+) while the falling threshold is trimmed to (VIT-). Since the rising and falling thresholds are both trimmed and warranted in the Electrical Characteristics Table, the TLV40x1 is equally suited for undervoltage and overvoltage detection. The difference between (VIT+) and (VIT-) is referred to as the comparator hysteresis and is 20 mV for TLV40x1Ry and 54 mV for TLV4021S5. The integrated hysteresis makes the TLV40x1 less sensitive to supply-rail noise and provides stable operation in noisy environments without having to add external positive feedback to create hysteresis. Copyright © 2019–2020, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Links: TLV4021 TLV4031 TLV4041 TLV4051 17 TLV4021, TLV4031, TLV4041, TLV4051 SNVSB04B – MARCH 2019 – REVISED JUNE 2020 www.ti.com Device Functional Modes (continued) The comparator input (IN) is able to swing 5.5 V above (V-) regardless of the device supply voltage. This includes the instance when no supply voltage is applied to the comparator (VS = 0 V). As a result, the TLV40x1 is referred to as fault tolerant, meaning it maintains the same high input impedance when VS is unpowered or ramping up. While not required in most cases, in order to reduce sensitivity to transients and layout parasitics for extremely noisy applications, place a 1 nF to 100 nF bypass capacitor at the comparator input. For the TLV40x1Ry comparators, the input bias current is typically 10 pA for input voltages between (V-) and (V+) and the value typically doubles for every 10°C temperature increase. The comparator input is protected from voltages below (V-) by an internal diode connected to (V-). As the input voltage goes below (V-), the protection diode becomes forward biased and begins to conduct causing the input bias current to increase exponentially. A series resistor is recommended to limit the input current when sources have signal content that is less than (V-). For the TLV4021S5, the input bias current is limited by the internal resistor divider with typical impedance of 2M ohms. 7.4.3 Switching Thresholds and Hysteresis (VHYS) The TLV40x1 transfer curve is shown in Figure 37. • VIT+ represents the positive-going input threshold that causes the comparator output to change from a logic low state to a logic high state. • VIT- represents the negative-going input threshold that causes the comparator output to change from a logic high state to a logic low state. • VHYS represents the difference between VIT+ and VIT- and is 20 mV for TLV40x1Ry and 54 mV for TLV4021S5. VHYS = (VIT+) ± (VIT-) VIT- VIT+ Figure 37. Transfer Curve VIT+ and VIT- have mV's of variation over temperature. The significant portion of the variation of these parameters is a result of the internal bandgap voltage from which VIT+ and VIT- are derived. The following hysteresis histograms demonstrate the performance of the TLV40x1 hysteresis circuitry. Since the bandgap reference is used to set VIT+ and VIT-, each of these parameters have a tendency to error (track) in the same direction. For example, if VIT+ has a positive 0.5% error, VIT- would have a tendency to have a similar positive percentage error. As a result, the variation of hysteresis will never be equal to the difference of the highest VIT+ value of its range and the lowest VIT- value of its range. 18 Submit Documentation Feedback Copyright © 2019–2020, Texas Instruments Incorporated Product Folder Links: TLV4021 TLV4031 TLV4041 TLV4051 TLV4021, TLV4031, TLV4041, TLV4051 www.ti.com SNVSB04B – MARCH 2019 – REVISED JUNE 2020 500 20000 450 18000 400 16000 350 14000 Device Count Device Count Device Functional Modes (continued) 300 250 200 12000 10000 8000 150 6000 100 4000 50 2000 0 17 18 19 20 VHYST (mV) 21 22 23 Figure 38. VHYST Histogram (TLV40x1R2, VS=5V) 0 17 18 19 20 VHYST (mV) 21 22 23 Figure 39. VHYST Histogram (TLV40x1R1, VS=5V) 18000 16000 Device Count 14000 12000 10000 8000 6000 4000 2000 0 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 Hysteresis (mV) Figure 40. VHYST Histogram (TLV40x1S5, VS=5V) 7.4.4 Output (OUT) The TLV4041 and TLV4051 feature a push-pull output stage which eliminates the need for an external pull-up resistor while providing a low impedance output driver. Likewise, the TLV4021 and TLV4031 feature an opendrain output stage which enables the output logic levels to be pulled-up to an external source as high as 5.5 V independent of the supply voltage. In a typical TLV40x1 application, OUT is connected to an enable input of a processor or a voltage regulator such as a dc-dc converter or low-dropout regulator (LDO). The open-drain output versions (TLV4021/4031) are used if the power supply of the comparator is different than the supply voltage of the device being controlled. In this usage case, a pull-up resistor holds OUT high when the comparator output goes high impedance. The correct interface-voltage level is provided (also known as level-shifting) by connecting the pull-up resistor on OUT to the appropriate voltage rail. The TLV4021/4031 output can be pulled up to 5.5 V, independent of the device supply voltage (VS). However, if level-shifting is not required, the push-pull output versions (TLV4041/4051) should be utilized in order to eliminate the need for the pull-up resistor. Copyright © 2019–2020, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Links: TLV4021 TLV4031 TLV4041 TLV4051 19 TLV4021, TLV4031, TLV4041, TLV4051 SNVSB04B – MARCH 2019 – REVISED JUNE 2020 www.ti.com 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 TLV40x1 is a 4-pin, low-power comparator with a precision, integrated reference. The comparators in this family are well suited for monitoring voltages and currents in portable, battery powered devices. 8.1.1 Monitoring (V+) Many applications monitor the same rail that is powering the comparator. In these applications the resistor divider is simply connected to the (V+) rail. Supply V+ IN OUT s5 Figure 41. Supply Monitoring 20 Submit Documentation Feedback Copyright © 2019–2020, Texas Instruments Incorporated Product Folder Links: TLV4021 TLV4031 TLV4041 TLV4051 TLV4021, TLV4031, TLV4041, TLV4051 www.ti.com SNVSB04B – MARCH 2019 – REVISED JUNE 2020 Application Information (continued) 8.1.2 Monitoring a Voltage Other than (V+) Some applications monitor rails other than the one that is powering the comparator. In these applications the resistor divider used to set the desired threshold is connected to the rail that is being monitored. VMON Supply V+ TLV40x1 OUT IN REF s5 Figure 42. Monitoring a Voltage Other than the Supply The TLV40x1Ry can monitor a voltage greater than the maximum (V+) with the use of an external resistor divider network. Likewise, the TLV40x1 can monitor voltages as low as the internal reference voltage (0.2 V, 0.5 V, or 1.2 V). The TLV40x1Ry also has the advantage of being able to monitor high impedance sources since the input bias current of the input (IN) is low. This provides an advantage over voltage supervisors that can only monitor the voltage rail that is powering them. Supervisors configured in this fashion have limitations in source impedance and minimum sensing voltage. 8.1.3 VPULLUP to a Voltage Other than (V+) For applications where the output of the comparator needs to interface with a reset/enable pin that operates from a different supply voltage, the open-drain comparators (TLV4021/4031) should be selected. In these usage cases, the output can be pulled up to any voltage that is lower than 5.5V (independent of (V+)). This technique is commonly referred to as "level-shifting." Supply VMON VPULLUP (up to 5.5V) RPULLUP V+ IN OUT s5 Figure 43. Level-Shifting Copyright © 2019–2020, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Links: TLV4021 TLV4031 TLV4041 TLV4051 21 TLV4021, TLV4031, TLV4041, TLV4051 SNVSB04B – MARCH 2019 – REVISED JUNE 2020 www.ti.com 8.2 Typical Application 8.2.1 Under-Voltage Detection Under-voltage detection is frequently required in battery-powered, portable electronics to alert the system that a battery voltage has dropped below the usable voltage level. Figure 44 shows a simple under-voltage detection circuit using the TLV4041R1 which is a non-inverting comparator with an integrated 1.2 V reference and a pushpull output stage. The non-inverting TLV4041 option was selected in this example since the micro-controller required an active low signal when an undervoltage level occurs. However, if an active high signal was required, the TLV4051 option with an inverting input stage would be utilized. VBAT 3.3V R1 V+ TLV4041R1 IN V+ + t OUT 1.2V R2 s5 ALERT Microcontroller Figure 44. Under-Voltage Detection 8.2.1.1 Design Requirements For this design, follow these design requirements: • Operate from 3.3 V power supply that powers the microcontroller. • Under-voltage alert is active low. • Logic low output when VBAT is less than 2.0V. 8.2.1.2 Detailed Design Procedure Configure the circuit as shown in Figure 44. Connect (V+) to 3.3 V which also powers the micro-controller. Resistors R1 and R2 create the under-voltage alert level of 2.0 V. When the battery voltage sags down to 2.0 V, the resistor divider voltage crosses the (VIT-) threshold of the TLV4041R1. This causes the comparator output to transition from a logic high to a logic low. The push-pull option of the TLV40x1 family is selected since the comparator operating voltage is shared with the microcontroller which is receiving the under-voltage alert signal. The TLV4041 option with the 1.2 V internal reference is selected because it is the closest internal reference option that is less than the critical under-voltage level of 2.0 V. Choosing the internal reference option that is closest to the critical under-voltage level minimizes the resistor divider ratio which optimizes the accuracy of the circuit. Error at the falling edge threshold of (VIT-) is amplified by the inverse of the resistor divider ratio. So minimizing the resistor divider ratio is a way of optimizing voltage monitoring accuracy. Equation 1 is derived from the analysis of Figure 44. (1) where • • • R1 and R2 are the resistor values for the resistor divider connected to IN VBAT is the voltage source that is being monitored for an undervoltage condition. VIT- is the falling edge threshold where the comparator output changes state from high to low Rearranging Equation 1 and solving for R1 yields Equation 2. 22 Submit Documentation Feedback Copyright © 2019–2020, Texas Instruments Incorporated Product Folder Links: TLV4021 TLV4031 TLV4041 TLV4051 TLV4021, TLV4031, TLV4041, TLV4051 www.ti.com SNVSB04B – MARCH 2019 – REVISED JUNE 2020 Typical Application (continued) (2) For the specific undervoltage detection of 2.0 V using the TLV4041R1, the following results are calculated. (3) where • • • R2 is set to 1 MΩ VBAT is set to 2.0 V VIT- is set to1.18 V Choose RTOTAL (R1 + R2) such that the current through the divider is at least 100 times higher than the input bias current (IBIAS). The resistors can have high values to minimize current consumption in the circuit without adding significant error to the resistive divider. 8.2.1.3 Application Curve 2.03V IN 2V 3.3V OUT 0V Normal Operating Voltage Under-Voltage Alert Normal Operating Voltage Figure 45. Under-Voltage Detection 8.2.2 Additional Application Information 8.2.2.1 Pull-up Resistor Selection For the TLV4021 (open-drain output versions of the TLV40x1 family), care should be taken in selecting the pullup resistor (RPU) value to ensure proper output voltage levels. First, consider the required output high logic level requirement of the logic device that is being driven by the comparator when calculating the maximum RPU value. When in a logic high output state, the output impedance of the comparator is very high but there is a finite amount of leakage current that needs to be accounted for. Use IO-LKG from the EC Table and the VIH minimum from the logic device being driven to determine RPU maximum using Equation 4. (4) Next, determine the minimum value for RPU by using the VIL maximum from the logic device being driven. In order for the comparator output to be recognized as a logic low, VIL maximum is used to determine the upper boundary of the comparator's VOL. VOL maximum for the comparator is available in the EC Table for specific sink current levels and can also be found from the VOUT versus ISINK curve in the Typical Application curves. A good design practice is to choose a value for VOL maximum that is 1/2 the value of VIL maximum for the input logic device. The corresponding sink current and VOL maximum value will be needed to calculate the minimum RPU. This method will ensure enough noise margin for the logic low level. With VOL maximum determined and the corresponding ISINK obtained, the minimum RPU value is calculated with Equation 5. Copyright © 2019–2020, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Links: TLV4021 TLV4031 TLV4041 TLV4051 23 TLV4021, TLV4031, TLV4041, TLV4051 SNVSB04B – MARCH 2019 – REVISED JUNE 2020 www.ti.com Typical Application (continued) (5) Since the range of possible RPU values is large, a value between 5 kΩ and 100 kΩ is generally recommended. A smaller RPU value provides faster output transition time and better noise immunity, while a larger RPU value consumes less power when in a logic low output state. 8.2.2.2 Input Supply Capacitor Although an input capacitor is not required for stability, for good analog design practice, connect a 100 nF low equivalent series resistance (ESR) capacitor from (V+) to (V-). 8.2.2.3 Sense Capacitor Although not required in most cases, for extremely noisy applications, place a 1 nF to 100 nF bypass capacitor from the comparator input (IN) to the (V-) for good analog design practice. This capacitor placement reduces device sensitivity to transients. 8.3 What to Do and What Not to Do Do connect a 100 nF decoupling capacitor from (V+) to (V-) for best system performance. If the monitored voltage is noisy, do connect a decoupling capacitor from the comparator input (IN) to (V-). Don't use resistors for the voltage divider that cause the current through them to be less than 100 times the input current of the comparator without also accounting for the impact on accuracy. Don't use a pull-up resistor that is too small because the larger current sunk by the output may exceed the desired low-level output voltage (VOL). 24 Submit Documentation Feedback Copyright © 2019–2020, Texas Instruments Incorporated Product Folder Links: TLV4021 TLV4031 TLV4041 TLV4051 TLV4021, TLV4031, TLV4041, TLV4051 www.ti.com SNVSB04B – MARCH 2019 – REVISED JUNE 2020 9 Power Supply Recommendations These devices operate from an input voltage supply range between 1.7 V and 5.5 V. 10 Layout 10.1 Layout Guidelines A power supply bypass capacitor of 100 nF is recommended when supply output impedance is high, supply traces are long, or when excessive noise is expected on the supply lines. Bypass capacitors are also recommended when the comparator output drives a long trace or is required to drive a capacitive load. Due to the fast rising and falling edge rates and high-output sink and source capability of the TLV40x1 output stage, higher than normal quiescent current can be drawn from the power supply when the output transitions. Under this circumstance, the system would benefit from a bypass capacitor across the supply pins. 10.2 Layout Example VBAT R1 (0402) OUT IN V+ V- R2 (0402) C1 (0402) Figure 46. Layout Example Copyright © 2019–2020, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Links: TLV4021 TLV4031 TLV4041 TLV4051 25 TLV4021, TLV4031, TLV4041, TLV4051 SNVSB04B – MARCH 2019 – REVISED JUNE 2020 www.ti.com 11 Device and Documentation Support 11.1 Related Links The table below lists quick access links. Categories include technical documents, support and community resources, tools and software, and quick access to order now. Table 3. Related Links PARTS PRODUCT FOLDER ORDER NOW TECHNICAL DOCUMENTS TOOLS & SOFTWARE SUPPORT & COMMUNITY TLV4021 Click here Click here Click here Click here Click here TLV4031 Click here Click here Click here Click here Click here TLV4041 Click here Click here Click here Click here Click here TLV4051 Click here Click here Click here Click here Click here 11.2 Receiving Notification of Documentation Updates To receive notification of documentation updates, navigate to the device product folder on ti.com. In the upper right corner, click on Alert me to register and receive a weekly digest of any product information that has changed. For change details, review the revision history included in any revised document. 11.3 Community Resources TI E2E™ support forums are an engineer's go-to source for fast, verified answers and design help — straight from the experts. Search existing answers or ask your own question to get the quick design help you need. Linked content is 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. 11.4 Trademarks E2E is a trademark of Texas Instruments. 11.5 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. 11.6 Glossary SLYZ022 — TI Glossary. This glossary lists and explains terms, acronyms, and definitions. 26 Submit Documentation Feedback Copyright © 2019–2020, Texas Instruments Incorporated Product Folder Links: TLV4021 TLV4031 TLV4041 TLV4051 TLV4021, TLV4031, TLV4041, TLV4051 www.ti.com SNVSB04B – MARCH 2019 – REVISED JUNE 2020 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. Copyright © 2019–2020, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Links: TLV4021 TLV4031 TLV4041 TLV4051 27 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) TLV4021R1YKAR ACTIVE DSBGA YKA 4 3000 RoHS & Green SNAGCU Level-1-260C-UNLIM -40 to 125 Z TLV4021R2YKAR ACTIVE DSBGA YKA 4 3000 RoHS & Green SNAGCU Level-1-260C-UNLIM -40 to 125 6 TLV4021S5YKAR ACTIVE DSBGA YKA 4 3000 RoHS & Green SAC396 | SNAGCU Level-1-260C-UNLIM -40 to 125 O TLV4031R1YKAR ACTIVE DSBGA YKA 4 3000 RoHS & Green SNAGCU Level-1-260C-UNLIM -40 to 125 1 TLV4031R2YKAR ACTIVE DSBGA YKA 4 3000 RoHS & Green SNAGCU Level-1-260C-UNLIM -40 to 125 7 TLV4041R1YKAR ACTIVE DSBGA YKA 4 3000 RoHS & Green SNAGCU Level-1-260C-UNLIM -40 to 125 2 TLV4041R2YKAR ACTIVE DSBGA YKA 4 3000 RoHS & Green SNAGCU Level-1-260C-UNLIM -40 to 125 8 TLV4041R5DBVR ACTIVE SOT-23 DBV 5 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 23XT TLV4051R1YKAR ACTIVE DSBGA YKA 4 3000 RoHS & Green SNAGCU Level-1-260C-UNLIM -40 to 125 C TLV4051R2YKAR ACTIVE DSBGA YKA 4 3000 RoHS & Green SNAGCU Level-1-260C-UNLIM -40 to 125 9 TLV4051R5DBVR ACTIVE SOT-23 DBV 5 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 23ZT (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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