PTQA430033 TI | Alldatasheet
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L O A D SENSE (–) SENSE (+) PTQA430xxxN Adjust +VO Sense(+) −VO Sense(−) +VI −VI +VI −VI +VO −VO C I (Optional) C O (Optional) Remote On/Off Not Recommended for New Designs PTQA430025, PTQA430033, PTQA420050 www.ti.com SLTS261C –MAY 2006–REVISED SEPTEMBER 2009 100-W48-VINPUTISOLATEDDC/DCCONVERTER Check for Samples: PTQA430025, PTQA430033, PTQA420050 1FEATURES DESCRIPTION• 100-W Output The PTQA series of power modules are single-output• Input Voltage Range: 36 V to 75 V isolated DC/DC converters, housed in an industry
- 92% Efficiency standard quarter-brick package. These modules are rated up to 100W with a maximum load current of up• 1500 Vdc Isolation to 30 A.• Fast Transient Response The PTQA series operates from a standard 48-V• On/Off Control telecom central office (CO) supply and occupies only• Overcurrent Protection 3.3 in2 of PCB area. The modules offer OEMs a
- Differential Remote Sense compact and flexible high-output power source in an industry standard footprint. They are suitable for• Adjustable Output Voltage distributed power applications in both telecom and• Output Overvoltage Protection computing environments, and may be used for• Over-Temperature Shutdown powering high-end microprocessors, DSPs, general purpose logic and analog.• Undervoltage Lockout
- Standard 1/4-Brick Footprint Features include a remote On/Off control with optional logic polarity, an undervoltage lockout• UL Safety Agency Approval (UVLO), a differential remote sense, and an industry standard output voltage adjustment using an external resistor. Protection features include output overcurrent protection (OCP), overvoltage protection (OVP), and thermal shutdown (OTP). The modules are fully integrated for stand-alone operation, and require no additional components. STANDARD APPLICATION Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Copyright © 2006–2009, Texas Instruments IncorporatedProducts conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
Not Recommended for New Designs PTQA430025, PTQA430033, PTQA420050 SLTS261C –MAY 2006–REVISED SEPTEMBER 2009 www.ti.com This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
ORDERING INFORMATION
For the most current package and ordering information, see the Package Option Addendum at the end of this datasheet, or see the TI website at www.ti.com. Table 1. PART NUMBERING SCHEME
100 WPO, Maximum Output Power PTQA430033x2
(1) See SOA curves or consult factory for appropriate derating.
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Not Recommended for New Designs PTQA430025, PTQA430033, PTQA420050 www.ti.com SLTS261C –MAY 2006–REVISED SEPTEMBER 2009 ELECTRICAL CHARACTERISTICS PTQA430025 (Unless otherwise stated, TA =25°C, VI = 48 V, VO = 2.5 V, CO = 0 μF, and IO = IOmax) PTQA430025 PARAMETER TEST CONDITIONS MIN TYP MAX UNIT IO Output Current Over VI range 0 30 A VI Input Voltage Range Over IO Range 36 48 75 V VO tol Set Point Voltage ±1(1) %VO Tolerance Regtemp Temperature Variation –40°C >TA > 85°C ±1.15 %VO Regline Line Regulation Over VI range ±5 mV Regload Load Regulation Over IO range ±5 mV ΔVotot Total Output Voltage Includes set-point, line, load, –40°C >TA > 85°C ±1.5 ±3 %VO Variation ΔVADJ Output Adjust Range PO ≤ 75 W –20 10 %VO η Efficiency IO = 50% IOmax 91% VR VO Ripple (pk-pk) 20 MHz bandwidth 50 100 mVpp ttr 0.1 A/μs slew rate, 50% to 75% IOmax 150 μs Transient Response ΔVtr VO over/undershoot 25 mV ITRIP Overcurrent Threshold Shutdown, followed by auto-recovery 41 A OVP Output Overvoltage Output shutdown and latch off 120 %VO Protection OTP Over Temperature Temperature Measurement at thermal sensor. Hysteresis = 10°C 105 ° C Protection nominal. fs Switching Frequency Over VI range 300 kHz VOFF VI decreasing, IO = 6 A 32.5 UVLO Undervoltage Lockout V VHYS Hysteresis 1.5 On/Off Input: Negative Enable VIH Input High Voltage 2.4 Open(2) Referenced to –VI V VIL Input Low Voltage –0.2 0.8 IIL Input Low Current –0.3 mA On/Off Input: Positive Enable VIH Input High Voltage 4.5 Open(2) Referenced to –VI V VIL Input Low Voltage –0.2 0.8 IIL Input Low Current –0.5 mA IISB Standby Input Current Output disabled (pin 2 status set to Off) 37 mA CI External Input Capacitance Between +VI and –VI 100 μF CO External Output Between +VO and –VO 0 30000 μF Capacitance Isolation Voltage Input-to-output and input-to-case 1500 Vdc Isolation Capacitance Input-to-output 1200 pF Isolation Resistance Input-to-output 10 MΩ (1) If Sense(–) is not used, pin 5 must be connected to pin 4 for optimum output voltage accuracy. (2) The Remote On/Off input has an internal pull-up and may be controlled with an open collector (drain) interface. An open circuit correlates to a logic high. Consult the application notes for interface considerations. Copyright © 2006–2009, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: PTQA430025 PTQA430033 PTQA420050
Not Recommended for New Designs PTQA430025, PTQA430033, PTQA420050 SLTS261C –MAY 2006–REVISED SEPTEMBER 2009 www.ti.com ELECTRICAL CHARACTERISTICS PTQA430033 (Unless otherwise stated, TA =25°C, VI = 48 V, VO = 3.3 V, CO = 0 μF, and IO = IOmax) PTQA430033 PARAMETER TEST CONDITIONS MIN TYP MAX UNIT IO Output Current Over VI range 0 30 A VI Input Voltage Range Over IO Range 36 48 75 V VO tol Set Point Voltage ±1(1) %VO Tolerance Regtemp Temperature Variation –40°C >TA > 85°C ±1.15 %VO Regline Line Regulation Over VI range ±5 mV Regload Load Regulation Over IO range ±5 mV ΔVotot Total Output Voltage Includes set-point, line, load, –40°C >TA > 85°C ±1.5 ±3 %VO Variation ΔVADJ Output Adjust Range PO ≤ 100 W –20 10 %VO η Efficiency IO = 50% IOmax 92% VR VO Ripple (pk-pk) 20 MHz bandwidth 50 100 mVpp ttr 0.1 A/μs slew rate, 50% to 75% IOmax 150 μs Transient Response ΔVtr VO over/undershoot 33 mV ITRIP Overcurrent Threshold Shutdown, followed by auto-recovery 41 A OVP Output Overvoltage Output shutdown and latch off 120 %VO Protection OTP Over Temperature Temperature Measurement at thermal sensor. Hysteresis = 10°C 105 ° C Protection nominal. fs Switching Frequency Over VI range 300 kHz VOFF VI decreasing, IO = 6 A 32.5 UVLO Undervoltage Lockout V VHYS Hysteresis 1.5 On/Off Input: Negative Enable VIH Input High Voltage 2.4 Open(2) Referenced to –VI V VIL Input Low Voltage –0.2 0.8 IIL Input Low Current –0.3 mA On/Off Input: Positive Enable VIH Input High Voltage 4.5 Open(2) Referenced to –VI V VIL Input Low Voltage –0.2 0.8 IIL Input Low Current –0.5 mA IIsb Standby Input Current Output disabled (pin 2 status set to Off) 42 mA CI External Input Capacitance Between +VI and –VI 100 μF CO External Output Between +VO and –VO 0 30000 μF Capacitance Isolation Voltage Input-to-output and input-to-case 1500 Vdc Isolation Capacitance Input-to-output 1200 pF Isolation Resistance Input-to-output 10 MΩ (1) If Sense(–) is not used, pin 5 must be connected to pin 4 for optimum output voltage accuracy. (2) The Remote On/Off input has an internal pull-up and may be controlled with an open collector (drain) interface. An open circuit correlates to a logic high. Consult the application notes for interface considerations.
4 Submit Documentation Feedback Copyright © 2006–2009, Texas Instruments Incorporated
Product Folder Links: PTQA430025 PTQA430033 PTQA420050
Not Recommended for New Designs PTQA430025, PTQA430033, PTQA420050 www.ti.com SLTS261C –MAY 2006–REVISED SEPTEMBER 2009 ELECTRICAL CHARACTERISTICS PTQA420050 (Unless otherwise stated, TA =25°C, VI = 48 V, VO = 5.0 V, CO = 0 μF, and IO = IOmax) PTQA420050 PARAMETER TEST CONDITIONS MIN TYP MAX UNIT IO Output Current Over VI range 0 20 A VI Input Voltage Range Over IO Range 36 48 75 V VO tol Set Point Voltage ±1(1) %VO Tolerance Regtemp Temperature Variation –40°C >TA > 85°C ±1.15 %VO Regline Line Regulation Over VI range ±5 mV Regload Load Regulation Over IO range ±5 mV ΔVotot Total Output Voltage Includes set-point, line, load, –40°C >TA > 85°C ±1.5 ±3 %VO Variation ΔVADJ Output Adjust Range PO ≤ 100 W –20 10 %VO η Efficiency IO = 50% IOmax 92.5% VR VO Ripple (pk-pk) 20 MHz bandwidth 50 100 mVpp ttr 0.1 A/μs slew rate, 50% to 75% IOmax 100 μs Transient Response ΔVtr VO over/undershoot 50 mV ITRIP Overcurrent Threshold Shutdown, followed by auto-recovery 29 A OVP Output Overvoltage Output shutdown and latch off 120 %VO Protection OTP Over Temperature Temperature Measurement at thermal sensor. Hysteresis = 10°C 105 ° C Protection nominal. fs Switching Frequency Over VI range 300 kHz VOFF VI decreasing, IO = 6 A 32.5 UVLO Undervoltage Lockout V VHYS Hysteresis 1.5 On/Off Input: Negative Enable VIH Input High Voltage 2.4 Open(2) Referenced to –VI V VIL Input Low Voltage –0.2 0.8 IIL Input Low Current –0.3 mA On/Off Input: Positive Enable VIH Input High Voltage 4.5 Open(2) Referenced to –VI V VIL Input Low Voltage –0.2 0.8 IIL Input Low Current –0.5 mA IIsb Standby Input Current Output disabled (pin 2 status set to Off) 58 mA CI External Input Capacitance Between +VI and –VI 100 μF CO External Output Between +VO and –VO 0 30000 μF Capacitance Isolation Voltage Input-to-output and input-to-case 1500 Vdc Isolation Capacitance Input-to-output 1200 pF Isolation Resistance Input-to-output 10 MΩ (1) If Sense(–) is not used, pin 5 must be connected to pin 4 for optimum output voltage accuracy. (2) The Remote On/Off input has an internal pull-up and may be controlled with an open collector (drain) interface. An open circuit correlates to a logic high. Consult the application notes for interface considerations. Copyright © 2006–2009, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: PTQA430025 PTQA430033 PTQA420050
Sense(+) +VO Adjust Sense(−) −VO PTQA430xxxN (Top View) +VI On/Off −VI Not Recommended for New Designs PTQA430025, PTQA430033, PTQA420050 SLTS261C –MAY 2006–REVISED SEPTEMBER 2009 www.ti.com PIN DESCRIPTIONS +VI: The positive input for the module with respect to –VI. When powering the module from a –48-V telecom central office supply, this input is connected to the primary system ground. –VI: The negative input supply for the module, and the 0 VDC reference for the Remote On/Off input. When powering the module from a +48-V supply, this input is connected to the 48-V return. Remote On/Off: This input controls the On/Off status of the output voltage. It is either driven low (–VI potential), or left open-circuit. For units identified with the NEN option, applying a logic low to this pin will enable the output. And for units identified with the PEN option, the output will be disabled. VO Adjust: Allows the output voltage to be trimmed by up or down between +10% and –20% of its nominal value. The adjustment method uses a single external resistor. Connecting the resistor between VO Adjust and –VO adjusts the output voltage lower, and placing it between VO Adjust and +VO adjusts the output higher. The calculations for the resistance value follows industry standard formulas. For further information consult the application note on output voltage adustment. +VO: The positive power output with respect to –VO, which is DC isolated from the input supply pins. If a negative output voltage is desired, +VO should be connected to the secondary circuit common and the output taken from –VO. –VO: The negative power output with respect to +VO, which is DC isolated from the input supply pins. This output is normally connected to the secondary circuit common when a positive output voltage is desired. Sense(+): Provides the converter with an output sense capability to regulate the set-point voltage directly at the load. When used with Sense(-), the regulation circuitry will compensate for voltage drop between the converter and the load. The pin may be left open circuit, but connecting it to +VO improves load regulation. Sense(–): Provides the converter with an output sense capability when used in conjunction with Sense(+) input. For optimum output voltage accuracy this pin should always be connected to –VO.
6 Submit Documentation Feedback Copyright © 2006–2009, Texas Instruments Incorporated
Product Folder Links: PTQA430025 PTQA430033 PTQA420050
200 LFM
400 LFM
100 LFM
Figure 5. Figure 6. Figure 7. typical data for the dc-dc converter. rated operating temperature. Derating limits apply to modules soldered directly to a 100–mm × 100–mm, double-sided PCB with 2 oz. copper. For surface mount packages, multiple vias (plated through holes) are required to add thermal paths around the power pins. Please refer to the mechanical specification for more information. Applies to Figure 8.
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Figure 9. Figure 10. Figure 11. typical data for the dc-dc converter. rated operating temperature. Derating limits apply to modules soldered directly to a 100–mm × 100–mm, double-sided PCB with 2 oz. copper. For surface mount packages, multiple vias (plated through holes) are required to add thermal paths around the power pins. Please refer to the mechanical specification for more information. Applies to Figure 12.
Not Recommended for New Designs PTQA430025, PTQA430033, PTQA420050 SLTS261C –MAY 2006–REVISED SEPTEMBER 2009 www.ti.com
APPLICATION INFORMATION
Operating Features and System Considerations for the PTQA Series of DC/DC Converters Overcurrent Protection To protect against load faults, these converters incorporate output overcurrent protection. Applying a load to the output that exceeds the converter's overcurrent threshold (see applicable specification) will cause the output voltage to momentarily fold back, and then shut down. Following shutdown the module will periodically attempt to automatically recover by initiating a soft-start power-up. This is often described as a hiccup mode of operation, whereby the module continues in the cycle of successive shutdown and power up until the load fault is removed. Once the fault is removed, the converter automatically recovers and returns to normal operation. Output Overvoltage Protection Each converter incorporates protection circuitry that continually senses for an output overvoltage (OV) condition. The OV threshold is set approximately 20% higher than the nominal output voltage. If the converter output voltage exceeds this threshold, the converter is immediately shut down and remains in a latched-off state. To resume normal operation the converter must be actively reset. This can only be done by momentarily removing the input power to the converter. For fail-safe operation and redundancy, the OV protection uses circuitry that is independent of the converter’s internal feedback loop. Overtemperature Protection Overtemperature protection is provided by an internal temperature sensor, which closely monitors the temperature of the converter’s printed circuit board (PCB). If the sensor exceeds a temperature of approximately 105°C, the converter will shut down. The converter will then automatically restart when the sensed temperature drops back to approximately 95°C. When operated outside its recommended thermal derating envelope (see data sheet SOA curves), the converter will typcially cycle on and off at intervals from a few seconds to one or two minutes. This is to ensure that the internal components are not permanently damaged from excessive thermal stress. Undervoltage Lockout The Undervoltage lockout (UVLO) is designed to prevent the operation of the converter until the input voltage is at the minimum input voltage. This prevents high start-up current during normal power-up of the converter, and minimizes the current drain from the input source during low input voltage conditions. The UVLO circuitry also overrides the operation of the Remote On/Off control. Primary-Secondary Isolation These converters incorporate electrical isolation between the input terminals (primary) and the output terminals (secondary). All converters are production tested to a withstand voltage of 1500 VDC. This specification complies with UL60950 and EN60950 requirements. This allows the converter to be configured for either a positive or negative input voltage source. The data sheet Pin Descriptions section provides guidance as to the correct reference that must be used for the external control signals. Input Current Limiting The converter is not internally fused. For safety and overall system protection, the maximum input current to the converter must be limited. Active or passive current limiting can be used. Passive current limiting can be a fast acting fuse. A 125-V fuse, rated no more than 10 A, is recommended. Active current limiting can be implemented with a current limited Hot-Swap controller. Thermal Considerations Airflow may be necessary to ensure that the module can supply the desired load current in environments with elevated ambient temperatures. The required airflow rate may be determined from the Safe Operating Area (SOA) thermal derating chart (see typical characteristics).
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Product Folder Links: PTQA430025 PTQA430033 PTQA420050
Not Recommended for New Designs PTQA430025, PTQA430033, PTQA420050 www.ti.com SLTS261C –MAY 2006–REVISED SEPTEMBER 2009 Differential Remote Sense The remote sense pins allows the converter to precisely regulate the DC output voltage at a remote location. This might be a power plane on an inner layer of the host PCB. Connecting Sense(+) directly to +VO , and Sense(–) to –VO will improve output voltage accuracy. In the event that the sense pins are left open-circuit, an internal 10-Ω resistor between each sense pin and its corresponding output prevents an excessive rise in the output voltage. For practical reasons, the amount of IR voltage compensation should be limited to 0.5 V maximum. The remote sense feature is designed to compensate for limited amounts of IR voltage drop. It is not intended to compensate for the forward drop of a non-linear or frequency dependent components that may be placed in series with the converter output. Examples of such components include OR-ing diodes, filter inductors, ferrite beads, and fuses. Enclosing these components with the remote sense connections effectively places them inside the regulation control loop, which can affect the stability of the regulator. Copyright © 2006–2009, Texas Instruments Incorporated Submit Documentation Feedback 11 Product Folder Links: PTQA430025 PTQA430033 PTQA420050
modules with the NEN option. Table 2. On/Off Control Requirements Table 3. On/Off Control Requirements
- The Remote On/Off control uses –VI (pin 3) as its ground reference. All voltages are with respect to –VI.
- An open-collector device (preferably a discrete transistor) is recommended. A pull-up resistor is not required.
If one is added the pull-up voltage should not exceed 20 V. 20 V. Exceeding this voltage will overstress, and possibly damage, the converter.
- The Remote On/Off pin may be controlled with devices that have a totem-pole output. This is provided the
pull-up resistor may be required to the logic supply voltage.
- The converter incorporates an undervoltage lockout (UVLO). The UVLO keeps the converter off until the
Remote On/Off control. Consult the product specification for the UVLO input voltage thresholds.
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L O A D Sense (–) Sense (+) (R2) Adjust Down PTQA430xxxN Sense(+) Sense(–) Adjust +VI −VI +VI −VI C O 330 µF +VO −VO +VO −VO Remote On/Off Adjust Up IO (max)/C0043 V O /C0032IO (rated) V A (R2)/C00435.11100 /C0068% /C004210.22 (k/C0087) R1 /C0043
5.11 VO (100/C0041/C0068%)
1.225/C0068% /C0042511 /C0068% /C004210.22 (k/C0087) Not Recommended for New Designs PTQA430025, PTQA430033, PTQA420050 SLTS261C –MAY 2006–REVISED SEPTEMBER 2009 www.ti.com Adjusting the Output Voltage of the 100-W Rated PTQA Series of Isolated DC/DC Converters The output voltage adjustment of the PTQA series of isolated DC/DC converters follows the standard adopted by popular 1/4-brick DC/DC converters. Adjustment is accomplished with a single external resistor that can adjust the output voltage from –20% to +10% of the nominal set-point voltage. The placement of the resistor determines the direction of adjustment, up or down, and the value of the magnitude of adjustment. Adjust Up: To increase the output voltage add a resistor, R1, between VO Adjust (pin 6) and Sense(+) (pin 7). Adjust Down: Add a resistor, (R2), between VO Adjust (pin 6) and Sense(–) (pin 5). Refer to Figure 16 for the placement of the required resistor, R1 or (R2). The values of R1 [adjust up], and (R2) [adjust down], can be calculated using the following formulas or selected from Table 4. (1) (2) Where: Δ% = Amount of adjustment in % VO = Original set-point voltage Notes: 1. Use only a single 1% resistor in either the R1 or (R2) location. Place the resistor as close to the converter as possible. 2. If the output voltage is increased, the maximum load current must be derated according to the following equation. (3) Where: VO = Original set-point voltage VA = Adjusted output voltage (measured between pins 8 and 4) In any instance, the load current must not exceed the converter's maximum rated output current of 30 A. 3. The overvoltage threshold is fixed, and is set approximately 20% above the nominal output voltage. Adjusting the output voltage higher reduces the voltage margin between the adjusted output voltage and the overvoltage (OV) protection threshold. This could make the module sensitive to OV fault detection, as a result of random noise and load transients. Figure 16.
14 Submit Documentation Feedback Copyright © 2006–2009, Texas Instruments Incorporated
Product Folder Links: PTQA430025 PTQA430033 PTQA420050
Table 4. Standard Adjustment Resistor Values
www.ti.com 2-Jun-2025 PACKAGING INFORMATION Orderable part number Status (1) Material type (2) Package | Pins Package qty | Carrier RoHS (3) Lead finish/ Ball material (4) MSL rating/ Peak reflow (5) Op temp (°C) Part marking (6) PTQA420050N2AD NRND Production Through-Hole Module (EAP) | 8 9 | TIW TRAY In-Work SN N/A for Pkg Type -40 to 85 PTQA420050N2AD.B NRND Production Through-Hole Module (EAP) | 8 9 | TIW TRAY In-Work SN N/A for Pkg Type -40 to 85 PTQA420050N2AS NRND Production Surface Mount Module (EAQ) | 8 9 | TIW TRAY No SNPB Level-1-235C-UNLIM/ Level-3-260C-168HRS -40 to 85 PTQA420050N2AZ NRND Production Surface Mount Module (BAQ) | 8 9 | TIW TRAY In-Work SNAGCU Level-3-260C-168 HR -40 to 85 PTQA420050P2AD NRND Production Through-Hole Module (EAP) | 8 9 | TIW TRAY In-Work SN N/A for Pkg Type -40 to 85 PTQA420050P2AD.B NRND Production Through-Hole Module (EAP) | 8 9 | TIW TRAY In-Work SN N/A for Pkg Type -40 to 85 PTQA420050P2AS NRND Production Surface Mount Module (EAQ) | 8 9 | TIW TRAY No SNPB Level-1-235C-UNLIM/ Level-3-260C-168HRS -40 to 85 PTQA420050P2AZ NRND Production Surface Mount Module (BAQ) | 8 9 | TIW TRAY In-Work SNAGCU Level-3-260C-168 HR -40 to 85 PTQA430033N2AD NRND Production Through-Hole Module (EAP) | 8 9 | TIW TRAY In-Work SN N/A for Pkg Type -40 to 85 PTQA430033N2AD.B NRND Production Through-Hole Module (EAP) | 8 9 | TIW TRAY In-Work SN N/A for Pkg Type -40 to 85 (1) Status: For more details on status, see our product life cycle. (2) Material type: When designated, preproduction parts are prototypes/experimental devices, and are not yet approved or released for full production. Testing and final process, including without limitation quality assurance, reliability performance testing, and/or process qualification, may not yet be complete, and this item is subject to further changes or possible discontinuation. If available for ordering, purchases will be subject to an additional waiver at checkout, and are intended for early internal evaluation purposes only. These items are sold without warranties of any kind. (3) RoHS values: Yes, No, RoHS Exempt. See the TI RoHS Statement for additional information and value definition. (4) Lead finish/Ball material: Parts may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead finish/Ball material values may wrap to two lines if the finish value exceeds the maximum column width. Addendum-Page 1
www.ti.com 2-Jun-2025 (5) MSL rating/Peak reflow: The moisture sensitivity level ratings and peak solder (reflow) temperatures. In the event that a part has multiple moisture sensitivity ratings, only the lowest level per JEDEC standards is shown. Refer to the shipping label for the actual reflow temperature that will be used to mount the part to the printed circuit board. (6) Part marking: There may be an additional marking, which relates to the logo, the lot trace code information, or the environmental category of the part. Multiple part markings will be inside parentheses. Only one part marking contained in parentheses and separated by a "~" will appear on a part. If a line is indented then it is a continuation of the previous line and the two combined represent the entire part marking for that device. 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. 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. Addendum-Page 2
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