ATL431LI-Q1 TI1 | Alldatasheet
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 35
Technical content
ADVANCE□INFORMATION Vref Input VKA IKA Product Folder Order Now T echnical Documents Tools & Software Support & Community 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. ADVANCE INFORMATION for pre-production products; subject to change without notice. ATL431LI-Q1 ATL432LI-Q1 SNVSBB0 –MAY 2019 ATL431LI-Q1/ATL432LI-Q1HighBandwidthLow-IQProgrammableShuntRegulator
1 Features
1• Qualified for automotive applications
- AEC-Q100 qualified with the following results: – Device temperature grade 1: –40°C to +125°C ambient operating temperature
- Reference voltage tolerance at 25°C – 0.5% (B Grade) – 1% (A Grade)
- Minimum typical output voltage: 2.5 V
- Adjustable output voltage: Vref to 36 V
- Operation from −40°C to +125°C
- 27 mV maximum temperature drift
- 0.65-Ω typical output impedance
- Sink-current capability – Imin = 0.08 mA (max) – IKA = 15 mA (max)
- Reference input current IREF: 0.4 μA (max)
- Deviation of reference input current over temperature, II(dev): 0.3 μA (max)
2 Applications
- Inverter and motor control
- DC/DC converter
- LED lighting
- On-board charger (OBC)
- Infotainment and cluster
3 Description
The ATL43xLI-Q1 device is a three-terminal adjustable shunt regulator, with specified thermal stability over applicable automotive, commercial, and military temperature ranges. The output voltage can be set to any value between Vref (approximately 2.5 V) and 36 V, with two external resistors. These devices have a typical output impedance of 0.65 Ω. Active output circuitry provides a very sharp turn-on characteristic, making these devices excellent replacements for Zener diodes in many applications, such as onboard regulation, adjustable power supplies, and switching power supplies. This device is a pin-to-pin alternative to the TL431LI-Q1 and TL432LI-Q1, with lower minimum operating current to help reduce system power consumption. The ATL432LI-Q1 device has exactly the same functionality and electrical specifications as the ATL431LI-Q1 device, but has a different pinout for the DBZ package. The ATL431LI-Q1 device is offered in two grades, with initial tolerances (at 25°C) of 0.5%, and 1%, for the B and A grade, respectively. In addition, low output drift versus temperature ensures good stability over the entire temperature range. The ATL43xLI-Q1 devices are characterized for operation from –40°C to +125°C. Device Information(1) PART NUMBER PACKAGE (PIN) BODY SIZE (NOM) ATL43xLI SOT-23 (3) 2.90 mm x 1.30 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Simplified Schematic
ADVANCE□INFORMATION ATL431LI-Q1 ATL432LI-Q1 SNVSBB0 –MAY 2019 www.ti.com Product Folder Links: ATL431LI-Q1 ATL432LI-Q1 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated Table of Contents
13.3 Receiving Notification of Documentation Updates 27
14 Mechanical, Packaging, and Orderable
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version. DATE REVISION NOTES May 2019 * Initial release.
ADVANCE□INFORMATION REF CA THODE ANODE CA THODE REF ANODE ATL431LI-Q1 ATL432LI-Q1 www.ti.com SNVSBB0 –MAY 2019 Product Folder Links: ATL431LI-Q1 ATL432LI-Q1 Submit Documentation FeedbackCopyright © 2019, Texas Instruments Incorporated
5 Device Comparison Table
DEVICE PINOUT INITIAL ACCURACY OPERATING FREE-AIR TEMPERATURE (TA) ATL431LI-Q1 ATL432LI-Q1 A: 1%
6 Pin Configuration and Functions
TYPE DESCRIPTIONATL431LI-Q1 ATL432LI-Q1 DBZ DBZ ANODE 3 3 O Common pin, normally connected to ground CATHODE 1 2 I/O Shunt Current/Voltage input REF 2 1 I Threshold relative to common anode
ADVANCE□INFORMATION ATL431LI-Q1 ATL432LI-Q1 SNVSBB0 –MAY 2019 www.ti.com Product Folder Links: ATL431LI-Q1 ATL432LI-Q1 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated (1) 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. (2) All voltage values are with respect to ANODE, unless otherwise noted.
7 Specifications
7.1 Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted)(1) MIN MAX UNIT VKA Cathode Voltage(2) 37 V IKA Continuos Cathode Current Range –10 18 mA II(ref) Reference Input Current –5 10 mA TJ Operating Junction Temperature Range –40 150 C Tstg Storage Temperature Range –65 150 C (1) AEC Q100-002 indicates that HBM stressing shall be in accordance with the ANSI/ESDA/JEDEC JS-001 specification
7.2 ESD Ratings
V(ESD) Electrostatic discharge Human body model (HBM), per AEC Q100-002(1) ±4000 V Charged-device model (CDM), per AEC Q100-011 ±1000 (1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report, SPRA953.
7.3 Thermal Information
THERMAL METRIC(1) ATL43xLI UNITDBZ
3 PINS
RθJA Junction-to-ambient thermal resistance 371.7 C/W RθJC(top) Junction-to-case (top) thermal resistance 145.9 C/W RθJB Junction-to-board thermal resistance 104.7 C/W ψJT Junction-to-top characterization parameter 23.9 C/W ψJB Juction-to-board characterization parameter 102.9 C/W (1) Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable ambient temperature is PD = (TJ(max) – TA)/θJA. Operating at the absolute maximum TJ of 150°C can affect reliability.
7.4 Recommended Operating Conditions
See (1) MIN MAX UNIT VKA Cathode Voltage VREF 36 V IKA Continuous Cathode Current Range 0.1 15 mA TA Operating Free-Air Temperature ATL43xLIxQ –40 125 C
7.5 Eletrical Characteristics
over recommended operating conditions, TA = 25°C (unless otherwise noted) PARAMETER TEST CIRCUIT TEST CONDITIONS MIN TYP MAX UNIT VREF Reference Voltage See Figure 17 VKA = Vref, IKA = 1 mA ATL43xLIAx devices 2475 2500 2525 mV ATL43xLIBx devices 2487 2500 2512 mV
ADVANCE□INFORMATION ATL431LI-Q1 ATL432LI-Q1 www.ti.com SNVSBB0 –MAY 2019 Product Folder Links: ATL431LI-Q1 ATL432LI-Q1 Submit Documentation FeedbackCopyright © 2019, Texas Instruments Incorporated Eletrical Characteristics (continued) over recommended operating conditions, TA = 25°C (unless otherwise noted) PARAMETER TEST CIRCUIT TEST CONDITIONS MIN TYP MAX UNIT (1) The deviation parameters VI(dev) and II(dev) are defined as the differences between the maximum and minimum values obtained over the rated temperature range. For more details on VI(dev) and how it relates to the average temperature coefficient, see Parameter Measurement Information. (2) The dynamic impedance is defined by |ZKA| = ΔVKA/ΔIKA. For more details on |ZKA| and how it relates to Vout, see Parameter Measurement Information. VI(dev) Deviation of reference input voltage over full temperature range (1) See Figure 17 VKA = Vref, IKA = 1 mA ATL43xLIxQ devices 10 27 mV ΔVref / ΔVKA Ratio of change in reference voltage to the change in cathode voltage See Figure 18 IKA = 1 mA ΔVKA = 10 V - Vref –1.4 –2.7 mV/V ΔVKA = 36 V - 10 V –1 –2 mV/V Iref Reference Input Current See Figure 18 IKA = 1 mA, R1 = 10kΩ, R2 = ∞ 0.2 0.4 µA II(dev) Deviation of reference input current over full temperature range (1) See Figure 18 IKA = 1 mA, R1 = 10kΩ, R2 = ∞ 0.1 0.3 µA Imin Minimum cathode current for regulation See Figure 17 VKA = Vref 65 80 µA Ioff Off-state cathode current See Figure 19 VKA = 36 V, Vref = 0 0.1 1 µA |ZKA| Dynamic Impedance (2) See Figure 17 VKA = Vref, IKA = 1 mA to 15 mA 0.3 0.65 Ω
7.6 Typical Characteristics
ranges of the various devices. Figure 1. Reference Voltage vs Free-Air Temperature Figure 2. Reference Current vs Free-Air Temperature Figure 3. Cathode Current vs Cathode Voltage Figure 4. Cathode Current vs Cathode Voltage Figure 5. Off-State Cathode Current Figure 6. Ratio of Delta Reference Voltage to Delta Cathode
8 Parameter Measurement Information
Figure 17. Test Circuit for VKA = Vref Figure 18. Test Circuit for VKA > Vref Figure 19. Test Circuit for Ioff
8.1 Temperature Coefficient
temperature coefficient, check out Voltage Reference Selection Basics.
0 VKA (V)
8.2 Dynamic Impedance
VKA is specified on the Eletrical Characteristics . Any deviation from Itest can cause deviation on the output VKA. Figure 20 shows the effect of the dynamic impedance on the VKA. Figure 20. Dynamic Impedance
9 Detailed Description
9.1 Overview
as a single voltage reference, error amplifier, voltage clamp or comparator with integrated reference. are characterized for operation from –40°C to +125°C.
9.2 Functional Block Diagram
Figure 21. Equivalent Schematic Figure 22. Detailed Schematic
ADVANCE□INFORMATION ATL431LI-Q1 ATL432LI-Q1 SNVSBB0 –MAY 2019 www.ti.com Product Folder Links: ATL431LI-Q1 ATL432LI-Q1 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated
9.3 Feature Description
ATL431LI-Q1 consists of an internal reference and amplifier that outputs a sink current based on the difference between the reference pin and the virtual internal pin. The sink current is produced by the internal Darlington pair, shown in the above schematic (Figure 21). A Darlington pair is used in order for this device to be able to sink a maximum current of 15 mA. When operated with enough voltage headroom (≥ 2.5 V) and cathode current (IKA), ATL431LI-Q1 forces the reference pin to 2.5 V. However, the reference pin can not be left floating, as it needs IREF ≥ 0.4 µA ( see Specifications). This is because the reference pin is driven into an NPN, which needs base current in order operate properly. When feedback is applied from the Cathode and Reference pins, ATL431LI-Q1 behaves as a Zener diode, regulating to a constant voltage dependent on current being supplied into the cathode. This is due to the internal amplifier and reference entering the proper operating regions. The same amount of current needed in the above feedback situation must be applied to this device in open loop, servo or error amplifying implementations in order for it to be in the proper linear region giving ATL431LI-Q1 enough gain. Unlike many linear regulators, ATL431LI-Q1 is internally compensated to be stable without an output capacitor between the cathode and anode. However, if it is desired to use an output capacitor Figure 13 can be used as a guide to assist in choosing the correct capacitor to maintain stability.
9.4 Device Functional Modes
9.4.1 Open Loop (Comparator)
When the cathode/output voltage or current of ATL431LI-Q1 is not being fed back to the reference/input pin in any form, this device is operating in open loop. With proper cathode current (Ika) applied to this device, ATL431LI-Q1 will have the characteristics shown in Figure 21. With such high gain in this configuration, ATL431LI-Q1 is typically used as a comparator. With the reference integrated makes ATL431LI-Q1 the preferred choice when users are trying to monitor a certain level of a single signal.
9.4.2 Closed Loop
When the cathode/output voltage or current of ATL431LI-Q1 is being fed back to the reference/input pin in any form, this device is operating in closed loop. The majority of applications involving ATL431LI-Q1 use it in this manner to regulate a fixed voltage or current. The feedback enables this device to behave as an error amplifier, computing a portion of the output voltage and adjusting it to maintain the desired regulation. This is done by relating the output voltage back to the reference pin in a manner to make it equal to the internal reference voltage, which can be accomplished via resistive or direct feedback.
10 Applications and Implementation
validate and test their design implementation to confirm system functionality.
10.1 Application Information
Regulator, SLVA445 assists with setting the shunt voltage to achieve optimum accuracy for this device.
10.2 Typical Applications
10.2.1 Comparator With Integrated Reference
Figure 23. Comparator Application Schematic
10.2.1.1 Design Requirements
For this design example, use the parameters listed in Table 1 as the input parameters. Table 1. Design Parameters
10.2.1.2 Detailed Design Procedure
- Input Voltage Range
- Reference Voltage Accuracy
- Output logic input high and low level thresholds
- Current Source resistance
10.2.1.2.1 Basic Operation
Current (IMIN) being 1 mA, operation below that could result in low gain, leading to a slow response. Slow or inaccurate responses can also occur when the reference pin is not provided enough overdrive voltage. overdrive voltage provided, the faster the ATL431LI-Q1 will respond. the internal VREF should suffice.
10.2.1.2.2 Output Voltage and Logic Input Level
typically denoted by VIH and VIL. V, which is typically sufficient for 5V supplied logic. However, would not work for 3.3 V and 1.8 V supplied logic. legible to the receiving low voltage logic device. outgoing logic's reliability. enough that will mitigate the error that IREF creates from VIN.
10.2.1.3 Application Curve
Figure 24. Output Response With Various Cathode Currents
10.2.2 Precision LED Lighting Current Sink Regulator
Figure 25. LED Lighting Current Sink Regulator
10.2.2.1 Design Requirements
For this design example, use the parameters listed in Table 1 as the input parameters. Table 2. Design Parameters
10.2.2.2 Detailed Design Procedure
- Output Current Range
- Output Current Accuracy
- Power Consumption for ATL43xLI
10.2.2.2.1 Basic Operation
sink and regulated for accurate brightness and color. consider lower voltage reference devices such as TLV43x-Q1 or TLVH43x-Q1.
ADVANCE□INFORMATION ATL431LI-Q1 ATL432LI-Q1 www.ti.com SNVSBB0 –MAY 2019 Product Folder Links: ATL431LI-Q1 ATL432LI-Q1 Submit Documentation FeedbackCopyright © 2019, Texas Instruments Incorporated The output current accuracy is determined by both the accuracy of ATL43xLI-Q1 chosen, as well as the accuracy of the sense resistor RS. The internal virtual reference voltage of ATL43xLI-Q1 will be within the range of 2.500 V ±(0.5% or 1.0%) depending on which version is being used. Another consideration for the output current accuracy is the temperature coefficient of the ATL43xLI-Q1 and RS. Please refer to the electrical characterization table for the specification of these parameters.
10.2.2.2.2 Power Consumption
In order for ATL43xLI-Q1 to properly be used as a control component in this circuit, the minimum operating current needs to be reached. This is accomplished by setting the external biasing resistor in series with the ATL43xLI-Q1. To achieve lower power consumption the ATL43xLI-Q1 is used due to its 65 µA typical minimum cathode current, Imin.
10.2.3 Shunt Regulator/Reference
Figure 26. Shunt Regulator Schematic
10.2.3.1 Design Requirements
For this design example, use the parameters listed in Table 1 as the input parameters. Table 3. Design Parameters
10.2.3.2 Detailed Design Procedure
- Input Voltage Range
- Temperature Range
- Total Accuracy
- Cathode Current
- Reference Initial Accuracy
- Output Capacitance
10.2.3.2.1 Programming Output/Cathode Voltage
mitigate any gain error. This can be done by meeting the Imin spec denoted in Specifications.
10.2.3.2.2 Total Accuracy
- R1 and R2 accuracies
- VI(dev) - Change in reference voltage over temperature
- ΔVREF / ΔVKA - Change in reference voltage to the change in cathode voltage
- |zKA| - Dynamic impedance, causing a change in cathode voltage with cathode current Worst case cathode voltage can be determined taking all of the variables in to account. Application note Setting the Shunt Voltage on an Adjustable Shunt Regulator, SLVA445 assists designers in setting the shunt voltage to achieve optimum accuracy for this device.
10.2.3.2.3 Stability
voltage could present a capacitive load that is within the ATL431LI-Q1 region of stability, shown in Figure 13. Also, designers may use capacitive loads to improve the transient response or for power supply decoupling.
10.2.3.2.4 Start-Up Time
10.2.3.3 Application Curve
Figure 27. ATL43xLI-Q1 Start-Up Response
10.2.4 Isolated Flyback with Optocoupler
Figure 28. Isolated Flyback with Optocoupler
10.2.4.1 Design Requirements
use the parameters in Table 4 as the input parameters. Table 4. Design Parameters
10.2.4.1.1 Detailed Design Procedure
network is beyond the scope of this section. Details on compensation network can be found on SLUA671.
2 REF FB REF
1 OUT REF FB
Figure 29. Feedback Quiescent Current total current through the feedback network cannot exceed 2mA. with a high CTR it is possible to lower IOPTNL to a value of 1.5 mA for a power loss of 30 mW. voltage. The design goal for the feedback resistor path is to minimize the resistor error while maintaining a low Iq. further decreased by using larger resistors.
10.2.5 Adjustable LDO Reference
10.2.5.1 Design Requirements
adjustable pin which needs a precise reference voltage to to change the regulate output voltage. Table 5. Design Parameters
10.2.5.1.1 Detailed Design Procedure
used. The input and output capacitor must also be taken into consideration for decoupling and stability. Figure 30. Feedback Quiescent Current An input capacitor, CI , is recommended to buffer line influences. Connect the capacitors close to the IC pins. conditions. As a result, the output capacitor selection is flexible. stability down to –40°C, use a capacitor rated at that temperature.
10.3 System Examples
A. R should provide cathode current ≥ 0.1 mA to the ATL431LI-Q1 at minimum V(BATT). Figure 31. Precision High-Current Series Regulator Figure 32. Output Control of a Three-Terminal Fixed Regulator Figure 33. High-Current Shunt Regulator A. Refer to the stability boundary conditions in and Figure 13 to determine allowable values for C. Figure 34. Crowbar Circuit
12 VDelay = R × C × I 12 V – V
Figure 38. Voltage Monitor Figure 39. Delay Timer Figure 40. Precision Current Limiter Figure 41. Precision Constant-Current Sink
11 Power Supply Recommendations
limit the current being driven into the Ref pin, as not to exceed its absolute maximum rating. of the traces to have the proper current density.
12 Layout
12.1 Layout Guidelines
12.2 Layout Example
Figure 42. DBZ Layout Example
13 Device and Documentation Support
13.1 Documentation Support
13.1.1 Device Nomenclature
possible orderable combinations are located in the Package Option Addendum.
13.1.2 Related Documentation
- Understanding Stability Boundary Conditions Charts in TL431, TL432 Data Sheet, SLVA482
- Setting the Shunt Voltage on an Adjustable Shunt Regulator, SLVA445
13.2 Related Links
resources, tools and software, and quick access to order now. Table 6. Related Links
13.3 Receiving Notification of Documentation Updates
changed. For change details, review the revision history included in any revised document.
13.4 Community Resources
solve problems with fellow engineers. contact information for technical support.
13.5 Trademarks
E2E is a trademark of Texas Instruments.
ADVANCE□INFORMATION ATL431LI-Q1 ATL432LI-Q1 SNVSBB0 –MAY 2019 www.ti.com Product Folder Links: ATL431LI-Q1 ATL432LI-Q1 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated
13.6 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.
13.7 Glossary
SLYZ022 — TI Glossary. This glossary lists and explains terms, acronyms, and definitions.
14 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.
www.ti.com 9-May-2019 Addendum-Page 1 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Qty Eco Plan (2) Lead/Ball Finish (6) MSL Peak Temp (3) Op Temp (°C) Device Marking (4/5) Samples PATL431LIAQDBZRQ1 ACTIVE SOT-23 DBZ 3 3000 TBD Call TI Call TI -40 to 125 PATL431LIBQDBZRQ1 ACTIVE SOT-23 DBZ 3 3000 TBD Call TI Call TI -40 to 125 PATL432LIAQDBZRQ1 ACTIVE SOT-23 DBZ 3 3000 TBD Call TI Call TI -40 to 125 PATL432LIBQDBZRQ1 ACTIVE SOT-23 DBZ 3 3000 TBD Call TI Call TI -40 to 125 (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 <=1000ppm threshold. Antimony trioxide based flame retardants must also meet the <=1000ppm threshold requirement. (3) MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. (4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device. (5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation of the previous line and the two combined represent the entire Device Marking for that device. (6) Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish values may wrap to two lines if the finish value exceeds the maximum column width. 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. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
www.ti.com 9-May-2019 Addendum-Page 2 In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis. OTHER QUALIFIED VERSIONS OF ATL431LI-Q1, ATL432LI-Q1 :
- Catalog: ATL431LI, ATL432LI NOTE: Qualified Version Definitions:
- Catalog - TI's standard catalog product
www.ti.com PACKAGE OUTLINE C TYP0.20 0.08 0.25 2.64 2.10
1.12 MAX
TYP0.10 0.01 3X 0.5 0.3 TYP0.6 0.2 1.9 0.95 TYP -80 A 3.04 2.80 B1.4 1.2 (0.95) SOT-23 - 1.12 mm max heightDBZ0003A SMALL OUTLINE TRANSISTOR 4214838/C 04/2017 NOTES: 1. All linear dimensions are in millimeters. Any dimensions in parenthesis are for reference only. Dimensioning and tolerancing per ASME Y14.5M. 2. This drawing is subject to change without notice. 3. Reference JEDEC registration TO-236, except minimum foot length.
0.2 C A B
0.1 C SCALE 4.000
www.ti.com EXAMPLE BOARD LAYOUT
0.07 MAX
0.07 MIN
3X (1.3) 3X (0.6) (2.1) 2X (0.95) (R0.05) TYP 4214838/C 04/2017 SOT-23 - 1.12 mm max heightDBZ0003A SMALL OUTLINE TRANSISTOR NOTES: (continued) 4. Publication IPC-7351 may have alternate designs. 5. Solder mask tolerances between and around signal pads can vary based on board fabrication site. SYMM LAND PATTERN EXAMPLE SCALE:15X PKG SOLDER MASK OPENING METAL UNDER SOLDER MASK SOLDER MASK DEFINED METALSOLDER MASK OPENING NON SOLDER MASK DEFINED (PREFERRED) SOLDER MASK DETAILS
www.ti.com EXAMPLE STENCIL DESIGN (2.1) 2X(0.95) 3X (1.3) 3X (0.6) (R0.05) TYP SOT-23 - 1.12 mm max heightDBZ0003A SMALL OUTLINE TRANSISTOR 4214838/C 04/2017 NOTES: (continued) 6. Laser cutting apertures with trapezoidal walls and rounded corners may offer better paste release. IPC-7525 may have alternate design recommendations. 7. Board assembly site may have different recommendations for stencil design. SOLDER PASTE EXAMPLE BASED ON 0.125 THICK STENCIL SCALE:15X SYMM PKG
IMPORTANT NOTICE AND DISCLAIMER TI PROVIDES TECHNICAL AND RELIABILITY DATA (INCLUDING DATASHEETS), DESIGN RESOURCES (INCLUDING REFERENCE DESIGNS), APPLICATION OR OTHER DESIGN ADVICE, WEB TOOLS, SAFETY INFORMATION, AND OTHER RESOURCES “AS IS” AND WITH ALL FAULTS, AND DISCLAIMS ALL WARRANTIES, EXPRESS AND IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY RIGHTS. These resources are intended for skilled developers designing with TI products. You are solely responsible for (1) selecting the appropriate TI products for your application, (2) designing, validating and testing your application, and (3) ensuring your application meets applicable standards, and any other safety, security, or other requirements. These resources are subject to change without notice. TI grants you permission to use these resources only for development of an application that uses the TI products described in the resource. Other reproduction and display of these resources is prohibited. No license is granted to any other TI intellectual property right or to any third party intellectual property right. TI disclaims responsibility for, and you will fully indemnify TI and its representatives against, any claims, damages, costs, losses, and liabilities arising out of your use of these resources. TI’s products are provided subject to TI’s Terms of Sale (www.ti.com/legal/termsofsale.html) or other applicable terms available either on ti.com or provided in conjunction with such TI products. TI’s provision of these resources does not expand or otherwise alter TI’s applicable warranties or warranty disclaimers for TI products. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2019, Texas Instruments Incorporated