PT4400 TI | Alldatasheet

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Technical content

Features

  • Up to 75W Output: 20A @3.3V, 15A @5V
  • Input Voltage Range: 36V to 75V
  • Programmable Output Voltage
  • 91% Efficiency (PT4403)
  • 1500 VDC Isolation
  • On/Off Control
  • Over-Current Protection

Description

The PT4400 series of power modules are single- output isolated DC/DC converters, housed in a compact 21-pin low-profile (12mm) package. These modules are rated up to 75W with load currents as high as 20A. The output voltage is set within a pre-defined range via a 5-bit input code. The PT4400 series operates from a standard 48-V telecom CO supply and occupies only 3.9in² of PCB area. These modules offer OEMs a compact and flexible high-output power source for use with high-end microprocessors, DSPs, general purpose logic and analog. They are suitable for distributed power applications in both telecom and computing environments. Features include output over-current protection, on/off control, output over-voltage protection (OVP), over-temperature shutdown, under-volt- age lockout (UVLO), and an output differential remote sense. The modules are fully integrated for stand-alone operation, and require no additional components.

Ordering Information

PT4401/G72 = 1.3 to 3.5 Volts PT4402/G72 = 1.05to 1.75Volts PT4403/G72 = 3.4 to 5.7 Volts Pin-Out Information Pin Function

1 Remote On/Off *

6 Pin Not Present

7 VID 0

8 VID 1

9 VID 2

10 VID 3

11 VID 4

12 (–)Remote Sense 13 -Vo 14 -Vo 15 -Vo 16 -Vo 17 +Vo 18 +Vo 19 +Vo 20 +Vo 21 (+)Remote Sense * For more information consult the applicable application note. †VID 4 does not function on the PT4402 & PT4403 SLTS160B (Revised 7/19/2002) PT Series Suffix (PT1234x) Case/Pin Order Package Configuration Suffix Code Vertical N (ENM) Horizontal A (ENN) SMD C (ENP) (Reference the applicable package code drawing for the dimensions and PC layout)

  • Differential Remote Sense
  • Output Over-Voltage Protection
  • Over-Temperature Shutdown
  • Undervoltage Lockout
  • Low Profile Package (12mm)
  • Compact PCB Layout: (Horizontal Config. 1.45in × 2.6in, Vertical Config. < 1 in2)
  • Solderable Copper Case
  • Agency Approvals Pending L O A D PT4401 +V sns +V out -Vout -Vsns 17–20 13–16 1271 181 09 VID0 - VID4 +V in –V in 4, 5 2, 3 Remote On/Off PROGRAMMING PINS # +V OUT +V IN –V IN –V OUT – REMOTE SENSE + REMOTE SENSE C o

For technical support and more information, see inside back cover or visit www.ti.com PT4400 Series 75-W 48-V Input Isolated DC/DC Converter PT4401 VID4=1 VID4=0 VID3 VID2 VID1 VID0 Vout Vout 1111 N / D * 1.30V 1110 2 . 1 0 V 1.35V 1101 2 . 2 0 V 1.40V 1100 2 . 3 0 V 1.45V 1011 2 . 4 0 V 1.50V 1010 2 . 5 0 V 1.55V 1001 2 . 6 0 V 1.60V 1000 2 . 7 0 V 1.65V 0111 2 . 8 0 V 1.70V 0110 2 . 9 0 V 1.75V 0101 3 . 0 0 V 1.80V 0100 3 . 1 0 V 1.85V 0011 3 . 2 0 V 1.90V 0010 3 . 3 0 V 1.95V 0001 3 . 4 0 V 2.00V 0000 3 . 5 0 V 2.05V Logic 0 =Pin 12 potential; (–)Remote Sense Logic 1 =Open circuit (no pull-up resistors) Environmental Specifications Characteristics Symbols Conditions Min Typ Max Units Operating Temperature Range T a Over Vin Range –40 — +85 (i) °C Storage Temperature T s — –40 — +125 °C Mechanical Shock Per Mil-STD-883D, Method 2002.3 1 msec, ½ Sine, mounted — TBD — G’s Mechanical Vibration Mil-STD-883D, Method 2007.2 Vertical — TBD (ii) — G’s20-2000 Hz, PCB mounted Horizontal — TBD (ii) — Weight — Vertical/Horizontal — 50 — grams ShutdownTemperature OTP Case temperature - auto reset — 115 — °C Flammability — Meets UL 94V-O Notes (i) See SOA curves or consult factory for appropriate derating (ii) The case pins on the through-hole package types (suffixes N &A) must be soldered. For more information see the applicable p ackage outline drawing. Output Voltage Programming Information Pin Descriptions +Vin: The positive input for the module with respect to –Vin. When powering the module from a –48V telecom central office supply, this input is connected to the primary system ground. –Vin: The negative input supply for the module, and the 0VDC reference for the Remote On/Off input. When powering the module from a +48V supply, this input is connected to the 48V(Return). Remote On/Off: A positive logic input that is referenced to in. Pulling this input down to –V in potential disables the module’s output. If this input is left open-circuit, the module will produce an output whenever a valid input source is applied. VID0 – VID4: Selects the set-point output voltage of the converter according to the applicable program code. VID0 – VID4 must either be connected to (–)Remote Sense or left open circuit. Note: For the PT4402 & PT4403, VID 4 is internally disabled and may be left open circuit. +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 +V o, 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. +Remote Sense: Provides the converter with remote sense capability to regulate the set-point voltage directly at the load. When used with –Remote 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 +V o will improve load regulation. –Remote Sense: This is the logic ‘0’ reference for the inputs VID0 – VID4, and provides the converter with remote sense capability when used in conjunction with +Remote Sense. For optimum output voltage accuracy this pin should always be connected to –V PT4402 Vout N/D * 1.05V 1.10V 1.15V 1.20V 1.25V 1.30V 1.35V 1.40V 1.45V 1.50V 1.55V 1.60V 1.65V 1.70V 1.75V PT4403 Vout N/D * 3.40V 3.56V 3.72V 3.88V 4.05V 4.21V 4.37V 4.53V 4.69V 4.86V 5.02V 5.18V 5.34V 5.50V 5.67V *N/D = Output voltage is not defined †VID 4 (pin 11) of PT4402 & PT4403 is don’t care ( ×). Note: During operation, changes to the program code should be limited to 15% of Vo so as to avoid activating the output OV protection.

For technical support and more information, see inside back cover or visit www.ti.com Note A: All data listed in the above graphs has been developed from actual products tested at 25°C. This data is considered typical data for the DC-DC Converter. Note B: SOA curves represent operating conditions at which internal components are at or below manufacturer’s maximum rated operating temperature. PT4401—48V 75-W 48-V Input Isolated DC/DC Converter PT4401 Characterstic Data PT4401 Specifications (Unless otherwise stated, Ta =25°C, Vin =48V, Vo =3.3V, Co =0µF, and Io =Iomax) PT4401 Characteristic Symbol Conditions Min Typ Max Units Output Current I o Over Vin range 0 — 20 A Input Voltage Range V in Over Io Range 36 48 75 V Set Point Voltage Tolerance V o tol — ±0.6 (1) —% V o Temperature Variation Reg temp –40° >Ta > +85°C — ±0.8 — %V o Line Regulation Reg line Over Vin range — ±1 — mV Load Regulation Reg load Over Io range — ±1 — mV Total Output Voltage Variation ∆Votot Includes set-point, line, load, — ±1.6 ±3 %V o–40° >Ta > +85°C Efficiency η —8 9—% Vo Ripple (pk-pk) V r 20MHz bandwidth — 50 — mV pp Transient Response t tr 1A/µs load step, 50% to 100% Iomax — 75 — µs ∆Vtr Vo over/undershoot — ±5 — %V o Over-Current Threshold I TRIP Shutdown, followed by auto-recovery — 26 — A Output Over-Voltage Protection OVP Output shutdown and latch off — 125 — %V o Switching Frequency ƒ o Over Vin range — 300 — kHz Under-Voltage Lockout UVLO — 32 — V Remote On/Off Input Referenced to –V in Input High Voltage V IH 4.5 — Open (2) V Input Low Voltage VIL –0.2 — +0.8 Input Low Current IIL — –0.3 — mA Standby Input Current I in standby pins 1 & 2 connected — 2 — mA Internal Input Capacitance C in — 1.4 — µF External Output Capacitance C out Between +Vo and –Vo 0 5,000 µF Isolation Voltage Input-output & input-case 1500 — — Vdc Capacitance Input-output — 1200 — pF Resistance Input-output 10 — — M Ω Notes: (1) If (–)Remote Sense is not used, pin 12 must be connected to pin 13 for optimum output voltage accuracy. (2) The Remote On/Off input has an internal pull-up. If it is left open-circuit the module will operate when input power is appl ied. A discrete MOSFET or bipoloar transistor is recommended to control this input. The open-circuit voltage is typically 5V. See application notes for i nterface considerations. 0 4 8 12 16 20 Iout (A ) Ambient Temperature (°C) 300LFM 200LFM 100LFM Nat conv Airflow Efficiency vs Load Current; V in =48V (See Note A) Output Ripple vs Load Current; V in =48V (See Note A) Power Dissipation vs Load Current; V o =3.3V (See Note A) Safe Operating Area; V in =48V (See Note B) 100 0 4 8 12 16 20 Iout (A ) Efficiency - % 3.3V 2.5V 1.8V 1.5V VOUT 100 0 4 8 12 16 20 Iout (A ) Ripple - mV 3.3V 2.5V 1.8V 1.5V VOUT 0 4 8 12 16 20 Iout (A ) Pd - Watts 75.0V 60.0V 48.0V 36.0V VIN

For technical support and more information, see inside back cover or visit www.ti.com PT4402— 48V 75-W 48-V Input Isolated DC/DC Converter Note A: All data listed in the above graphs has been developed from actual products tested at 25°C. This data is considered typical data for the DC-DC Converter. Note B: SOA curves represent operating conditions at which internal components are at or below manufacturer’s maximum rated operating temperature. PT4402 Characterstic Data PT4402 Specifications (Unless otherwise stated, Ta =25°C, Vin =48V, Vo =1.5V, Co =0µF, and Io =Iomax) PT4402 Characteristic Symbol Conditions Min Typ Max Units Output Current I o Over Vin range 0 — 20 A Input Voltage Range V in Over Io Range 36 48 75 V Set Point Voltage Tolerance V o tol — ±0.6 (1) —% V o Temperature Variation Reg temp –40° >Ta > +85°C — ±0.8 — %V o Line Regulation Reg line Over Vin range — ±1 — mV Load Regulation Reg load Over Io range — ±1 — mV Total Output Voltage Variation ∆Votot Includes set-point, line, load, — ±1.6 ±3 %V o–40° >Ta > +85°C Efficiency η Io =10A — 84 — % Vo Ripple (pk-pk) V r 20MHz bandwidth — 40 — mV pp Transient Response t tr 1A/µs load step, 50% to 100% Iomax — 75 — µs ∆Vtr Vo over/undershoot — ±3 — %V o Over-Current Threshold I TRIP Shutdown, followed by auto-recovery — 28 — A Output Over-Voltage Protection OVP Output shutdown and latch off — 125 — %V o Switching Frequency ƒ o Over Vin range — 300 — kHz Under-Voltage Lockout UVLO — 32 — V Remote On/Off Input Referenced to –V in Input High Voltage V IH 4.5 — Open (2) V Input Low Voltage VIL –0.2 — +0.8 Input Low Current IIL — –0.3 — mA Standby Input Current I in standby pins 1 & 2 connected — 2 — mA Internal Input Capacitance C in — 1.4 — µF External Output Capacitance C out Between +Vo and –Vo 0 5,000 µF Isolation Voltage Input-output & input-case 1500 — — Vdc Capacitance Input-output — 1200 — pF Resistance Input-output 10 — — M Ω Notes: (1) If (–)Remote Sense is not used, pin 12 must be connected to pin 13 for optimum output voltage accuracy. (2) The Remote On/Off input has an internal pull-up. If it is left open-circuit the module will operate when input power is appl ied. A discrete MOSFET or bipoloar transistor is recommended to control this input. The open-circuit voltage is typically 5V. See application notes for i nterface considerations. Efficiency vs Load Current; V in =48V (See Note A) Output Ripple vs Load Current; V in =48V (See Note A) Power Dissipation vs Load Current; V o =1.5V (See Note A) Safe Operating Area; V in =48V (See Note B) 048 1 2 1 6 2 0 Iout (A ) Efficiency - % 1.75V 1.5V 1.2V 1.05V VOUT 100 0 4 8 12 16 20 Iout (A ) Ripple - mV 1.75V 1.5V 1.2V 1.05V VOUT 0 4 8 12 16 20 Iout (A) Ambient Temperature (°C) 200LFM 100LFM Nat conv 0 4 8 12 16 20 Iout (A ) Pd - Watts 75.0V 60.0V 48.0V 36.0V VIN

For technical support and more information, see inside back cover or visit www.ti.com Note A: All data listed in the above graphs has been developed from actual products tested at 25°C. This data is considered typical data for the DC-DC Converter. Note B: SOA curves represent operating conditions at which internal components are at or below manufacturer’s maximum rated operating temperature. PT4403— 48V 75-W 48-V Input Isolated DC/DC Converter PT4403 Characterstic Data PT4403 Specifications (Unless otherwise stated, Ta =25°C, Vin =48V, Vo =5.02V, Co =0µF, and Io =Iomax) PT4403 Characteristic Symbol Conditions Min Typ Max Units Output Current I o Over Vin range 0 — 15 A Input Voltage Range V in Over Io Range 36 48 75 V Set Point Voltage Tolerance V o tol — ±0.6 (1) —% V o Temperature Variation Reg temp –40° >Ta > +85°C — ±0.8 — %V o Line Regulation Reg line Over Vin range — ±2 — mV Load Regulation Reg load Over Io range — ±1 — mV Total Output Voltage Variation ∆Votot Includes set-point, line, load, — ±1.6 ±3 %V o–40° >Ta > +85°C Efficiency η —9 1—% Vo Ripple (pk-pk) V r 20MHz bandwidth — 70 — mV pp Transient Response t tr 1A/µs load step, 50% to 100% Iomax — 75 — µs ∆Vtr Vo over/undershoot — ±2 — %V o Over-Current Threshold I TRIP Shutdown, followed by auto-recovery — 23 — A Output Over-Voltage Protection OVP Output shutdown and latch off — 125 — %V o Switching Frequency ƒ o Over Vin range — 300 — kHz Under-Voltage Lockout UVLO — 32 — V Remote On/Off Input Referenced to –V in Input High Voltage V IH 4.5 — Open (2) V Input Low Voltage VIL –0.2 — +0.8 Input Low Current IIL — –0.3 — mA Standby Input Current I in standby pins 1 & 2 connected — 2 — mA Internal Input Capacitance C in — 1.4 — µF External Output Capacitance C out Between +Vo and –Vo 0 5,000 µF Isolation Voltage Input-output & input-case 1500 — — Vdc Capacitance Input-output — 1200 — pF Resistance Input-output 10 — — M Ω Notes: (1) If (–)Remote Sense is not used, pin 12 must be connected to pin 13 for optimum output voltage accuracy. (2) The Remote On/Off input has an internal pull-up. If it is left open-circuit the module will operate when input power is appl ied. A discrete MOSFET or bipoloar transistor is recommended to control this input. The open-circuit voltage is typically 5V. See application notes for i nterface considerations. Efficiency vs Load Current; V o =5V (See Note A) Output Ripple vs Load Current; V o =5V (See Note A) Power Dissipation vs Load Current; V o =5V (See Note A) Safe Operating Area; V in =48V (See Note B) 100 0369 1 2 1 5 Iout (A ) Efficiency - % 36.0V 48.0V 60.0V 75.0V VIN 100 125 150 0369 1 2 1 5 Iout (A ) Ripple - mV 75.0V 60.0V 48.0V 36.0V VIN 0369 1 2 1 5 Iout (A ) Pd - Watts 75.0V 60.0V 48.0V 36.0V VIN 0369 1 2 1 5 Iout (A ) Ambient Temperature (°C) 200LFM 100LFM Nat conv Airflow

For technical support and more information, see inside back cover or visit www.ti.com PT4400 Series Operating Features and System Considerations for the PT4400 Series of Isolated DC/DC Converters Over-Current Protection To protect against load faults, the PT4400 series incor- porates output over-current protection. Applying a load that exceeds the converter’s over-current threshold (see applicable specification) will cause the regulated output to momentarily fold back and shut down. Following shutdown the module will periodically attempt to auto- matically 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 succesive shutdown and power up until the load fault is removed. Once the fault is removed, the converter then automatically recovers and returns to normal operation. Output Over-Voltage Protection The PT4400 DC/DC converter series incorporates pro- tection circuitry that continually senses for an output overvoltage (OV) condition. The OV threshold auto- matically tracks the VID output voltage program setting to a level that is 25% higher than that programmed at the control pins, VID0 through VID4. If the converter output voltage exceeds this OV threshold, the converter is immediately shut down and remains in a latched-off state. In order to resume normal operation the converter must be actively reset. This can only be done by momen- tarily removing the input power to the converter. For failsafe operation and redundancy, the OV protection uses circuitry that is independent of the converter’s internal feedback loop. Over-Temperature Protection Over-temperature protection is provided by an internal temperature sensor, which closely monitors the tempera- ture of the converter’s metal case. If the case temperature exceeds a nominal 115°C, the converter will shut down. The converter will then automatically restart when the sensed temperature drops back to approximately 105°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 exces- sive thermal stress. Under-Voltage Lockout The Under-Voltage Lock-Out (UVLO) is designed to prevent the operation of the converter until the input voltage is close to the minimum input voltage. The converter is held off when the input voltage is below the UVLO threshold, and turns on when the input voltage rises above the threshold. 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 converter will meet full specifications when the minimum specified input voltage is reached. The UVLO circuitry also overrides the operation of the Remote On/Off control. Only when the input voltage is above the UVLO threshold will the Remote On/Off control be functional. Primary-Secondary Isolation The PT4400 DC/DC converter series incorporates elec- trical isolation between the input terminals (primary) and the output terminals (secondary). All converters are production tested to a withstand voltage of 1500VDC. This specification complies with UL60950 and EN60950 and the requirements for operational isolation. This allows the converter to be configured for either a positive or negative input voltage source. The data sheet ‘Pin De- scriptions’ section provides guidance as to the correct reference that must be used for the external control signals. Fuse Recommendations If desired, an input fuse may be added to protect against the application of a reverse input voltage. 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 converter specifica- tions). The recommended direction for airflow is into, or perpendicular to, the longest side of the module’s metal case. See Figure 1. Recommended direction for airflow is into (perpendicular to) the longest side. Figure 1 Application Notes

For technical support and more information, see inside back cover or visit www.ti.com Application Notes PT4400 Series Pin-Coded Output Voltage Adjustment on the PT4400 Programmable DC/DC Converters The PT4400 series of isloated DC/DC converters have a programmable output voltage. In each case the desired output voltage must be selected from one of a number of discrete voltages using the voltage programming control pins. Depending on each model’s resolution and adjust- ment range, there are up to five control pins. They are identified VID0–VID4 (pins 7–11) respectively. By selectively strapping these control pins to (–)Remote Sense (pin 12), the output voltage can be programmed in incremental steps over the defined output voltage range. The program code and output voltage range of the PT4401 is also compatible with the “Voltage ID” code defined in the Intel® VRM 8.2 specification. Refer to Figure 1 for the connection schematic, and the product specification sheet for each model’s applicable program code. Notes: 1. The programming convention is as follows:- Logic 0: Connect to pin 12 (–Remote Sense). Logic 1: Open circuit/open drain (See notes 2, & 4) 2. Do not connect pull-up resistors to the voltage programming pins. 3. To minimize output voltage error, always use pin 12 (-Remote Sense) as the logic “0” reference. While -Vout (pins 13-16) can also be used for programming, doing so will degrade the voltage selection accuracy and load regulation of the product. 4. When VID0–VID4 are all open circuit (logic 1), the output voltage is undefined. In this state the output voltage of the converter cannot be guaranteed, and can vary with output load and input voltage. Figure 1 5. On all models other than the PT4401, the contol input VID4 (pin 11) is internally disabled and not functional. 6. If active devices are used to ground the voltage control pins, low-level open drain MOSFET devices should be used over bipolar transistors. The inherent V ce(sat) in bipolar devices introduces errors in the device’s internal voltage control circuit. Discrete transistors such as the BSS138 or IRLML2402 are examples of appropriate devices. Active Voltage Programming: Special precautions should be taken when making changes to the voltage progam code while the output is active. This activity induces a transient, which may activate the module’s output over-voltage (OV) protection. Once triggered the OV protection circuit latches the output off, and requires the momentary removal of input power to reset the module. OV protection trips can be avoided by limiting the output voltage adjustment to no more than a 15% change from the initial voltage. Large transi- tions are best made with a series of incremental changes, allowing 100µs settling time between each program state. When using active devices to program the output voltage, their state should be asserted prior to input power being applied. An alternative is to pull pin 1 (Remote On/Off) to -V in (pins 2, 3) during the application of power, assert the required program code, and then release pin 1. The module will than initiate a soft-start power-up to the desired program voltage. L O A D PT4400 +V sns +V out -Vout -V sns 17 – 20 13 – 16 1271 181 09 VID0 - VID4 +V in – V in 4, 5 2, 3 Remote On/Off PROGRAMMING PINS +V OUT +V IN –V IN – REMOTE SENSE + REMOTE SENSE C o BSS138INH –V OUT

Orderable Device Status(1) Package Type Package Drawing Pins Package Qty Eco Plan(2) Lead/Ball FinishMSL Peak Temp (3) PT4401A ACTIVE SIP MOD ULE ENN 21 8 TBD Call TI Level-1-215C-UNLIM PT4401N ACTIVE SIP MOD ULE ENM 21 8 TBD Call TI Level-1-215C-UNLIM PT4403A NRND SIP MOD ULE ENN 21 8 TBD Call TI Level-1-215C-UNLIM PT4403N ACTIVE SIP MOD ULE ENM 21 8 TBD Call TI Level-1-215C-UNLIM (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)Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontentfor the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS):TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt):This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br):TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. 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. PACKAGE OPTION ADDENDUM www.ti.com 6-Dec-2006 Addendum-Page 1

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