PT4121C | DigiCamel IC Datasheet

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SLTS092B TI | Alldatasheet

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Technical content

Features

Input Voltage Range: 36V to 75V
20W Rated
82% Efficiency
1500 VDC Isolation
Low Profile (8.5 mm)
Small Footprint: 1.52in x 1.73in
Remote On/Off PT4120 Series 20-W 48-V Input Isolated DC/DC Converter PT4120 LOAD +VOUT –VOUT VO Adj +V IN –VIN Remote On/Off Q 1 BSS138 SLTS092B (Revised 2/26/2002)

Ordering Information

PT4121/G72 = 3.3V/5A (16.5W) PT4122/G72 = 5.0V/4A PT4123/G72 = 12.0V/1⋅6A PT4124/G72 = 15.0V/1⋅3A PT4125/G72 = 5.2V/3·8A PT4127/G72 = 1.8V/5A (9W) PT4128/G72 = 2.5V/5A (12.5W) PT4129/G72 = 1.65V/5A (8·25W) Pin-Out Information Pin Function

1 Remote On/Off †

2– V in 3+ V in 4 –Vout 5 +Vout 6V out Adjust † † For further information, see application notes.

Description

The PT4120 power modules are a series of isolated DC/DC converters housed a low- profile package. Rated for 20 watts or 5A, the series includes standard output voltages rang- ing from as low as 1.5VDC to 15VDC. The output may be adjusted ±10% of nominal. These converters are ideal for Telecom, Industrial, Computer, and other distributed power applications that require input-to- output isolation. Using multiple PT4120 modules, system designers can implement a complete custom power supply solution. The flexibility of full isolation also allows the input or output to be configured for negative voltage operation. The PT4120 series requires no additional components for proper operation.

Short Circuit Protection
Over Temperature Shutdown
Under-Voltage Lockout
UL1950 Recognized
CSA 22.2 950 Certified
EN60950 Approved
4×106 Hrs MTBF PT Series Suffix (PT1234x) Case/Pin Order Package Configuration Suffix Code * Horizontal A (EGD) SMD C (EGE) * Previously known as package style 710. (Reference the applicable package code draw- ing for the dimensions and PC board layout)

For technical support and more information, see inside back cover or visit www.ti.com PT4120 Series 20-W 48-V Input Isolated DC/DC Converter Specifications (Unless otherwise stated, Ta =25°C, Vin =48V, Cout =0µF, and Io =Iomax) PT4120 SERIES Characteristic Symbol Conditions Min Typ Max Units Output Current I o Over Vin range V o = 15V 0.1 (1) — 1.3 Input Voltage Range V in Over Io Range 36.0 48.0 75.0 VDC Set Point Voltage Tolerance V o tol V o ≥5.0V — ±1 ±1.5 %V o Vo ≤3.3V — — ±50 mV Temperature Variation Reg temp –40° ≤Ta ≤ +85°C — ±0.5 — %V o Line Regulation Reg line Over Vin range V o ≥5.0V — ±0.2 ±1.0 %V o Vo ≤3.3V — ±7 ±33 mV Load Regulation Reg load Over Io range Vo ≥5.0V — ±0.4 ±1.0 %V o Vo ≤3.3V — ±13 ±33 mV Total Output Voltage Variation ∆Votot Includes set-point, line load, V o ≥5.0V — ±2 — %V o Efficiency η Vo = 15V — 86 — Vo = 12V — 83 — Vo =5.0V — 82 — % Vo =3.3V — 78 — Vo =1.8V — 67 — Vo Ripple (pk-pk) V r 20MHz bandwidth V o ≥ 5.0V — 0.5 — %V o Vo ≤ 3.3V — 15 — mV pp Transient Response t tr 0.1A/µs, load step 50% to 100% Iomax — 100 — µs ∆Vtr Vo over/undershoot V o ≥ 5.0V — ±3.0 — %V o Vo ≤ 3.3V — ±150 — mV Short Circuit Current I sc — 2xI omax — A Switching Frequency ƒ s Over Vin range V o ≥ 12.0V 600 650 700 kHzVo ≤ 5.2V 800 850 900 Under-Voltage Lockout UVLO — 31 — V Remote On/Off (Pin 1) Referenced to –Vin (pin 2) Input High Voltage V IH 2.5 — 7.0 (2) V Input Low Voltage V IL –0.2 — +0.8 Input Low Current I IL — –10 – µA Standby Input Current I in standby pins 1 & 2 connected — 7 50 mA Internal Input Capacitance C in — 0.5 — µF External Output Capacitance C out Between +Vo and –Vo 0 — 200 µF Isolation Voltage Input to output 1500 — — V Capacitance — 1100 — pF Resistance 1 0——M Ω Operating Temperature Range T a Over Vin range -40 — +85 (3) °C Storage Temperature T s — -40 — +125 °C Reliability MTBF Per Bellcore TR-332 4.0 — — 10 6 Hrs50% stress, Ta =40°C, ground benign Mechanical Shock — Per Mil-Std-883D, method 2002.3, — 500 — G’s 1mS, half-sine, mounted to a fixture Mechanical Vibration — Per Mil-Std-883D, method 2007.2, — 15 — G’s 20-2000Hz, soldered in a PC board Weight — — — 23 — grams Flammability — Materials meet UL 94V-0 Notes: (1) The DC/DC converter will operate at no load with reduced specifications. (2) The Remote On/Off (pin 1) has an internal pull-up, and if it is left open circuit the PT4120 will operate when input power i s applied. Refer to the application notes for interface considerations. (3) See Safe Operating Area curves or contact the factory for the appropriate derating.

For technical support and more information, see inside back cover or visit www.ti.com Note A: Characteristic data has been developed from actual products tested at 25°C. This data is considered typical data for the Converter. Note B: SOA curves represent the conditions at which internal components are at or below the manufacturer’s maximum operating temperatures Typical CharacteristicsPT4120 Series 20-W 48-V Input Isolated DC/DC Converter PT4122, 5.0 VDC (See Note A) Efficiency vs Output Current Efficiency vs Output Current Ripple vs Output Current Ripple vs Output Current Safe Operating Area, V in =48V (See Note B) Power Dissipation vs Output Current Power Dissipation vs Output Current PT4121, 3.3 VDC (See Note A) PT4123, 12.0 VDC (See Note A) Efficiency vs Output Current Ripple vs Output Current Power Dissipation vs Output Current 012345 Iout (A) Efficiency - % 36.0V 48.0V 75.0V Vin 012345 Iout (A) Ripple - mV 75.0V 48.0V 36.0V Vin 012345 Iout (A) Pd - Watts 75.0V 48.0V 36.0V Vin 0 0.5 1 1.5 2 2.5 3 3.5 4 Iout (A) Efficiency - % 36.0V 48.0V 75.0V Vin 0 0.5 1 1.5 2 2.5 3 3.5 4 Iout (A) Ripple - mV 75.0V 48.0V 36.0V Vin 0 0.5 1 1.5 2 2.5 3 3.5 4 Iout (A) Pd - Watts 75.0V 48.0V 36.0V Vin Iout (A) Efficiency - % 36.0V 48.0V 75.0V Vin Iout (A) Ripple - mV 75.0V 48.0V 36.0V Vin Iout (A) Pd - Watts 75.0V 48.0V 36.0V Vin Safe Operating Area, V in =48V (See Note B) Safe Operating Area, V in =48V (See Note B) 012345 Iout (A) Ambient Temperature (°C) 200LFM 120LFM 60LFM Nat conv Airflow 01234 Iout (A) Ambient Temperature (°C) 200LFM 120LFM 60LFM Nat conv Airflow Iout (A) Ambient Temperature (°C) 200LFM 120LFM 60LFM Nat conv Airflow

For technical support and more information, see inside back cover or visit www.ti.com Adjusting the Output Voltage of the PT4120/ PT4140 Series of Isolated DC/DC Converters The factory pre-set output voltage of Power Trends’ PT4120 and PT4140 series of isolated DC/DC converters may be adjusted within ±10% of nominal. Adjustment is made from the secondary side of the regulator 1 with a single external resistor. For the input voltage range specified in the data sheet Table 1 gives the allowable adjustment range for each model, as V o (min) and Vo (max). Adjust Up: An increase in the output voltage is obtained by adding a resistor, R2 between pin 6 (Vo adjust), and pin 4 (-Vout). Adjust Down: Add a resistor (R1), between pin 6 (Vo ad- just) and pin 5 (+Vout). Refer to Figure 1 and Table 2 for both the placement and value of the required resistor, (R1) or R2. Notes: 1. The PT4120 and PT4140 series of DC/DC converters incorporate isolation between the V in and Vo terminals. Adjustment of the output voltage is made to the regulation circuit on the secondary or output side of the converter. 2. The maximum rated output power for this series is 20W. An increase in the output voltage may therefore require a corresponding reduction in the maximum output current ( see Table 1). The revised maximum output current must be determined as follows:- Io(max) = 20 A, or 5A, whichever is less. Va Where Va is the adjusted ouput voltage. 3. Use only a single 1% resistor in either the (R1) or R2 location. Place the resistor as close to the ISR as possible. Table 1 DC/DC CONVERTER ADJUSTMENT RANGE AND FORMULA PARAMETERS Series Pt # 48V Bus PT4126 PT4129 PT4127 PT4128 PT4121 PT4122 PT4125 PT4123 PT4124 24V Bus PT4146 PT4147 PT4148 PT4141 PT4142 PT4143 PT4144 Max Current 2 5A 5A 5A 5A 5A 4A 3.8A 1.6A 1.3A Figure 1 (R1) Adj Down Adj Up +V in –V in +V o –V o PT4120/40 +Vout –Vout +Vin –Vin Remote On/Off V o(adj) 4. Never connect capacitors to Vo adjust. Any capacitance added to the Vo adjust control pin will affect the stability of the ISR. The values of (R1) [adjust down], and R2 [adjust up], can also be calculated using the following formulas. (R1) = Ko (Va – Vr) – Rs kΩVr (Vo – Va) R2 = Ko – Rs kΩ (Va – Vo) Where Vo = Original output voltage Va = Adjusted output voltage Vr = Reference voltage (Table 1) Ko = Multiplier constant (Table 1) Rs = Internal series resistance (Table 1) PT4120/4140 Series

For technical support and more information, see inside back cover or visit www.ti.com Application Notes continued PT4122 PT4142 5.0Vdc Va(req’d) 4.5 (12.6)kΩ 4.55 (40.3)kΩ 4.6 (75.0)kΩ 4.65 (120.0)kΩ 4.7 (179.0)kΩ 4.75 (262.0)kΩ 4.8 (387.0)kΩ 4.85 (595.0)kΩ 4.9 (1.01)MΩ 4.95 5.0 5.05 5.1 1.06M Ω 5.15 645.0k Ω 5.2 437.0k Ω 5.25 312.0k Ω 5.3 229.0k Ω 5.35 169.0k Ω 5.4 125.0k Ω 5.45 90.2k Ω 5.5 62.4k Ω 48V Bus PT4126 PT4127 PT4128 PT4121 24V Bus PT4146 PT4147 PT4148 PT4141 Vo(nom) 1.5Vdc 1.8Vdc 2.5Vdc 3.3Vdc Va(req’d) 1.35 (2.8)kΩ 1.4 (53.2)kΩ 1.45 (204.0)kΩ 1.5 1.55 1.3M Ω 1.6 627.0k Ω 1.65 404.0k Ω (51.7)kΩ 1.7 (161.0)kΩ 1.75 (489.0)kΩ 1.8 1.85 1.28M Ω 1.9 587.0k Ω 1.95 355.0k Ω 2.25 (26.5)kΩ 2.3 (92.9)kΩ 2.35 (203.0)kΩ 2.4 (425.0)kΩ 2.45 (1.09)MΩ 2.5 2.55 1.09M Ω 2.6 450.0k Ω 2.65 237.0k Ω 2.7 131.0k Ω 2.75 67.7k Ω 2.95 (90.7)kΩ 3.0 (146.0)kΩ 3.05 (224.0)kΩ 3.1 (341.0)kΩ 3.15 (536.0)kΩ 3.2 (926.0)kΩ 3.25 (2.09)MΩ 3.3 3.35 1.19M Ω 3.4 502.0k Ω 3.45 272.0k Ω 3.5 158.0k Ω 3.55 88.7k Ω 3.6 42.7k Ω 3.65 9.9k Ω Table 2 DC/DC CONVERTER SERIES ADJUSTMENT RESISTOR VALUES Series Pt # R1 = (Blue) R2 = Black PT4123 PT4124 PT4143 PT4144 12.0Vdc 15.0Vdc Va(req’d) 10.8 (276.0)kΩ 11.0 (365.0)kΩ 11.2 (497.0)kΩ 11.4 (719.0)kΩ 11.6 (1.16)MΩ 11.8 12.0 12.2 588.0k Ω 12.4 239.0k Ω 12.6 123.0k Ω 12.8 64.6k Ω 13.0 29.7k Ω 13.2 6.4k Ω 13.5 (312.0)kΩ 13.6 (345.0)kΩ 13.8 (427.0)kΩ 14.0 (542.0)kΩ 14.2 (713.0)kΩ 14.4 (1.0)MΩ 14.6 (1.57)MΩ 14.8 15.0 15.2 597.0k Ω 15.4 253.0k Ω 15.6 138.0k Ω 15.8 81.0k Ω 16.0 46.6k Ω 16.5 0.8k Ω PT4120/4140 Series

Orderable Device Status(1) Package Type Package Drawing Pins Package Qty Eco Plan(2) Lead/Ball FinishMSL Peak Temp (3) PT4121A ACTIVE DIP MOD ULE EGD 6 16 TBD Call TI Level-1-215C-UNLIM PT4121C ACTIVE DIP MOD ULE EGE 6 16 TBD Call TI Level-1-215C-UNLIM PT4122A ACTIVE DIP MOD ULE EGD 6 16 TBD Call TI Level-1-215C-UNLIM PT4122C ACTIVE DIP MOD ULE EGE 6 16 TBD Call TI Level-1-215C-UNLIM PT4122CT ACTIVE DIP MOD ULE EGE 6 100 TBD Call TI Level-1-215C-UNLIM PT4123A ACTIVE DIP MOD ULE EGD 6 16 TBD Call TI Level-1-215C-UNLIM PT4123C ACTIVE DIP MOD ULE EGE 6 16 TBD Call TI Level-1-215C-UNLIM PT4124A ACTIVE DIP MOD ULE EGD 6 16 TBD Call TI Level-1-215C-UNLIM PT4124C ACTIVE DIP MOD ULE EGE 6 16 TBD Call TI Level-1-215C-UNLIM PT4125A ACTIVE DIP MOD ULE EGD 6 16 TBD Call TI Level-1-215C-UNLIM PT4125C ACTIVE DIP MOD ULE EGE 6 16 TBD Call TI Level-1-215C-UNLIM PT4126A ACTIVE DIP MOD ULE EGD 6 16 TBD Call TI Level-1-215C-UNLIM PT4126C ACTIVE DIP MOD ULE EGE 6 16 TBD Call TI Level-1-215C-UNLIM PT4127A ACTIVE DIP MOD ULE EGD 6 16 TBD Call TI Level-1-215C-UNLIM PT4127C ACTIVE DIP MOD ULE EGE 6 16 TBD Call TI Level-1-215C-UNLIM PT4128A ACTIVE DIP MOD ULE EGD 6 16 TBD Call TI Level-1-215C-UNLIM PT4128C ACTIVE DIP MOD ULE EGE 6 16 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) 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. 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) PACKAGE OPTION ADDENDUM www.ti.com 24-Jun-2005 Addendum-Page 1

(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 24-Jun-2005 Addendum-Page 2

Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment. TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI’s standard warranty. Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty. Except where mandated by government requirements, testing of all parameters of each product is not necessarily performed. TI assumes no liability for applications assistance or customer product design. Customers are responsible for their products and applications using TI components. To minimize the risks associated with customer products and applications, customers should provide adequate design and operating safeguards. TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right, copyright, mask work right, or other TI intellectual property right relating to any combination, machine, or process in which TI products or services are used. Information published by TI regarding third-party products or services does not constitute a license from TI to use such products or services or a warranty or endorsement thereof. Use of such information may require a license from a third party under the patents or other intellectual property of the third party, or a license from TI under the patents or other intellectual property of TI. Reproduction of information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompanied by all associated warranties, conditions, limitations, and notices. Reproduction of this information with alteration is an unfair and deceptive business practice. TI is not responsible or liable for such altered documentation. Resale of TI products or services with statements different from or beyond the parameters stated by TI for that product or service voids all express and any implied warranties for the associated TI product or service and is an unfair and deceptive business practice. TI is not responsible or liable for any such statements. Following are URLs where you can obtain information on other Texas Instruments products and application solutions: Products Applications Amplifiers amplifier.ti.com Audio www.ti.com/audio Data Converters dataconverter.ti.com Automotive www.ti.com/automotive DSP dsp.ti.com Broadband www.ti.com/broadband Interface interface.ti.com Digital Control www.ti.com/digitalcontrol Logic logic.ti.com Military www.ti.com/military Power Mgmt power.ti.com Optical Networking www.ti.com/opticalnetwork Microcontrollers microcontroller.ti.com Security www.ti.com/security Telephony www.ti.com/telephony Video & Imaging www.ti.com/video Wireless www.ti.com/wireless Mailing Address: Texas Instruments Post Office Box 655303 Dallas, Texas 75265 Copyright  2005, Texas Instruments Incorporated

Product Information

PT4121C specifications and overview.

Summary

20-W 48-V Input Isolated DC/DC Converter

Description

20-W 48-V Input Isolated DC/DC Converter

Source title PT4121C Datasheet(PDF) - Texas Instruments

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