PT6680 Series 5 Amp 18-36V Input Integrated Switching Regulator SLTS098 (Revised 6/30/2000) • • • • • • Single Device: 5A Output Input Voltage Range: 18V to 36V Adjustable Output Voltage 80% Efficiency Remote Sense Capability Standby Function trial applications requiring as much as 36V input and 5A of output current, the PT6680 is packaged in a 14-Pin SIP (Single In-line Package) and is available in a surface-mount configuration. Only two external capacitors are required for proper operation. Please note that this product does not include short circuit protection. The PT6680 series is a new addition to Power Trends’ line of 24V bus Integrated Switching Regulators (ISRs). Designed for general purpose indus- Pin-Out Information Standard Application REMOTE SENSE 1 VIN 4,5,6 PT6680 V OUT 11,12,13 3 C1 7,8,9,10 + STBY C2 + LOAD Q1 COM COM C1 = Required 560µF electrolytic (1) C2 = Required 330µF electrolytic Q1 = NFET-or Open Collector Gate 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Remote Sense Do Not Connect STBY*- Standby Vin Vin Vin GND GND GND GND Vout Vout Vout Vout Adjust Ordering Information PT Series Suffix (PT1234X) PT6681! PT6682! PT6683! PT6684! PT6685! PT6686! Case/Pin Configuration = +3.3 Volts = +2.5 Volts = +5.0 Volts = +9.0 Volts = +15.0 Volts = +12.0 Volts Heat Heat Spreader Spreader with Side Tabs Vertical Through-Hole P R G B Horizontal Through-Hole D Horizontal Surface Mount E Pkg Style 400 Note: Back surface of product is conducting metal PT6680 Specifications PT6680 SERIES Characteristics (Ta = 25°C unless noted) Symbols Conditions Min Output Current Io Ta = 60°C, 200 LFM, pkg P Ta = 25°C, natural convection 0.1 0.1 Input Voltage Range Vin 0.1A ≤ I o ≤ Iomax Output Voltage Tolerance ∆Vo Over Vin range Ta = -40°C to +65°C Output Voltage Adjust Range Voadj Pin 14 to V o or ground Vo Vo Vo Vo Vo Vo = +3.3V = +2.5V = +5.0V = +9.0V = +12V = +15V Typ Max — — 5.0 5.0 A +18V — +36V V Vo-0.1 — Vo+0.1 V 2.2 1.8 3.0 6.0 9.0 10.0 — — — — — — 4.7 4.3 6.5 10.2 13.6 17.0 (2) (2) Units V Line Regulation Regline +18V≤Vin≤+36V, Io = Iomax — ±0.5 ±1.0 Load Regulation Regload Vin = +28V, 0.1≤ Io≤ Iomax — ±0.5 ±1.0 %Vo Vo Ripple/Noise Vn Vin = +28V, Io = Iomax — 50 1.0 — mVpp %Vo Transient Response with C 2 = 330µF ttr Vos Io step between 2.5A and 5.0A Vo over/undershoot — — 100 100 — — µSec mV — — — — — — 78 73 82 87 88 90 — — — — — — % kHz Efficiency η Vin = +28V, Io = I o max V o < +6V V o > +6V Vo Vo Vo Vo Vo Vo = +3.3V = +2.5V = +5.0V = +9.0V = +12.0V = +15.0V %Vo Switching Frequency ƒo +18V ≤ Vin ≤ +36V Over Io range 500 550 600 Maximum Operating Temperature Range Ta Over V in range -40 — +85 Storage Temperature Ts — -40 — +125 °C Mechanical Shock — Per Mil-STD-883D, Method 2002.3 — 500 — G’s Mechanical Vibration — Per Mil-STD-883D, Method 2007.2, 20-2000 Hz, soldered in a PC board — 7.5 — G’s Weight — — — 14 — grams (3) °C Notes (1) The 560µF electrolytic input capacitor must be rated for 1.5Arms ripple current. Both an input and output capacitor is required for proper operation. (2) The ISR will operate down to no load with reduced specifications. (3) Consult the SOA curves or contact the factory to determine the appropriate derating. For technical support and more information, see inside back cover or visit www.ti.com/powertrends Typical Characteristics PT6680 Series 5 Amp 18-36V Input Integrated Switching Regulator PT6681, Vout =3.3V (Note A) Efficiency vs Output Current 90 Efficiency - % 85 80 VIN 75 18.0V 24.0V 36.0V 70 65 60 55 50 0 1 2 3 4 5 Iout (A) Ripple vs Output Current 25 Ripple - mV 20 VIN 15 18.0V 24.0V 36.0V 10 5 0 0 1 2 3 4 5 Iout (A) Power Dissipation vs Output Current 6 Pd - Watts 5 VIN 4 36.0V 24.0V 18.0V 3 2 1 0 0 1 2 3 4 5 Iout (A) Note A: Note B: Characteristic data in the above graphs has been developed from actual products tested at 25°C. This data is considered typcial for the ISR. SOA curves represent conditions at which internal components are at or below manufacturer’s maximum operating temperatures. For technical support and more information, see inside back cover or visit www.ti.com/powertrends Application Notes PT6680 Series Adjusting the Output Voltage of the PT6680 5Amp 18-36V Bus Converter Series The output voltage of the Power Trends PT6680 Series ISRs may be adjusted higher or lower than the factory trimmed pre-set voltage with the addition of a single external resistor 1. Table 1 gives the respective allowable adjustment range for each model in the series as Va (min) and Va (max). Figure 1 1 Vsense Refer to Figure 1 and Table 2 for both the placement and value of the required resistor, either (R1) or R2 as appropriate. Notes: 1. Use only a single 1% resistor in either the (R1) or R2 location. Place the resistor as close to the ISR as possible. 2. Never connect capacitors from Vo adjust to either GND, Vout, or the Remote Sense pin. Any capacitance added to the Vo adjust pin will affect the stability of the ISR. 3. If the Remote Sense feature is being used, connecting the resistor (R1) between pin 14 (Vo adjust) and pin 1 (Remote Sense) can benefit load regulation. 4. For output voltages above 10.0Vdc, the maximum output current must be limited to 4Adc. 5. Adjustments to the output voltage may place additional limits on the input voltage for the part. The revised limits must comply with the following requirements. = (Vout + 3)V or 18V, Vin (min) whichever is higher. = (10 x Vout )V or 36V, Vin (max) whichever is less. PT6680 Vin STBY GND 3 7,8,9,10 11,12,13 Vo 14 (R1) Adj Down + + C out L O A D R2 Adjust Up COM COM The values of (R1) [adjust down], and R2 [adjust up], can also be calculated using the following formulae. (R1) = Ro (Vo – 1.25)(Va – 1.25) 1.25 (Vo – Va) R2 = Ro (Vo – 1.25) Va - Vo Where: Vo Va Ro Rs = Original output voltage = Adjusted output voltage = The resistance value in Table 1 = The series resistance from Table 1 PT6682 PT6681 PT6683 PT6684 PT6686 PT6685 Vo (nom) 2.5V 3.3V 5.0V 9.0V 12.0V 15.0V Va (min) 1.8V 2.2V 3.0V 6.0V 9.0V 10.0V Va (max) 4.3V 4.7V 6.5V 10.2V 13.6V 17.0V Ro (kΩ Ω) 4.99 4.22 2.49 2.0 2.0 2.0 Ω) Rs (kΩ 2.49 4.99 4.99 12.7 12.7 12.7 For technical support and more information, see inside back cover or visit www.ti.com/powertrends – Rs – Rs Table 1 PT6680 ADJUSTMENT AND FORMULA PARAMETERS Series Pt # Vo Vo(adj) C in Adjust Up: An increase in the output voltage is obtained by adding a resistor R2, between pin 14 (Vo adjust) and pins 7-10 (GND). Adjust Down: Add a resistor (R1), between pin 14 (Vo adjust) and pins 11-13 (Vout). 4,5,6 Vin kΩ kΩ Application Notes continued PT6680 Series Table 2 PT6680 ADJUSTMENT RESISTOR VALUES Series Pt # Current Vo (nom) Va (req’d) 1.8 PT6682 5Adc 2.5Vdc PT6681 5Adc 3.3Vdc PT6683 5Adc 5.0Vdc (1.4)kΩ Series Pt # Current Vo (nom) Va (req’d) 6.0 PT6684 5Adc 9.0Vdc 1.9 (2.9)kΩ 6.2 (9.2)kΩ 2.0 (5.0)kΩ 6.4 (11.9)kΩ PT6685 4Adc 15.0Vdc (6.9)kΩ 2.1 (8.1)kΩ 6.6 (14.0)kΩ 2.2 (13.3)kΩ (1.0)kΩ 6.8 (18.6)kΩ 2.3 (23.7)kΩ (2.3)kΩ 7.0 (23.0)kΩ 2.4 (54.9)kΩ (3.9)kΩ 7.2 (28.3)kΩ (5.8)kΩ 7.4 (35.0)kΩ 2.5 PT6686 4Adc 12.0Vdc 2.6 59.9kΩ (8.4)kΩ 7.6 (43.5)kΩ 2.7 28.7kΩ (11.7)kΩ 7.8 (55.0)kΩ 2.8 18.3kΩ (16.5)kΩ 8.0 (71.0)kΩ 2.9 13.1kΩ (23.6)kΩ 8.2 (95.0)kΩ 3.0 10.0kΩ (35.4)kΩ (1.6)kΩ 8.4 (135.0)kΩ 3.1 7.9kΩ (59.0)kΩ (2.3)kΩ 8.6 (215.0)kΩ 3.2 6.4kΩ (130.0)kΩ (3.1)kΩ 8.8 (455.0)kΩ 3.3 5.3kΩ (4.0)kΩ 9.0 3.4 4.4kΩ 81.5kΩ (5.1)kΩ 9.2 64.8kΩ (36.1)kΩ 3.5 3.8kΩ 38.3kΩ (6.2)kΩ 9.4 26.1kΩ (41.2)kΩ 3.6 3.2kΩ 23.8kΩ (7.6)kΩ 9.6 13.1kΩ (47.1)kΩ 3.7 2.7kΩ 16.6kΩ (9.1)kΩ 9.8 6.7kΩ (54.1)kΩ 3.8 2.3kΩ 12.3kΩ (10.9)kΩ 10.0 2.8kΩ (62.6)kΩ (25.8)kΩ 3.9 2.0kΩ 9.4kΩ (13.0)kΩ 10.2 0.2kΩ (72.8)kΩ (28.3)kΩ 4.0 1.7kΩ 7.4kΩ (15.6)kΩ 10.4 (85.7)kΩ (31.1)kΩ 4.1 1.4kΩ 5.8kΩ (18.7)kΩ 10.6 (102.0)kΩ (34.1)kΩ 4.2 1.2kΩ 4.6kΩ (22.6)kΩ 10.8 (124.0)kΩ (37.3)kΩ 4.3 1.0kΩ 3.7kΩ (27.6)kΩ 11.0 (155.0)kΩ (40.9)kΩ 4.4 2.9kΩ (34.2)kΩ 11.2 (201.0)kΩ (44.9)kΩ 4.5 2.2kΩ (43.6)kΩ 11.4 (278.0)kΩ (49.3)kΩ 4.6 1.7kΩ (57.6)kΩ 11.6 (432.0)kΩ (54.3)kΩ 4.7 1.2kΩ (80.9)kΩ 11.8 (895.0)kΩ 4.8 (128.0)kΩ 12.0 4.9 (268.0)kΩ 12.2 94.8kΩ (73.3)kΩ 12.4 41.1kΩ (81.6)kΩ 5.0 (31.7)kΩ (59.8)kΩ (66.1)kΩ 5.1 88.4kΩ 12.6 23.1kΩ (91.3)kΩ 5.2 41.7kΩ 12.8 14.2kΩ (103.0)kΩ 5.3 26.1kΩ 13.0 8.8kΩ (117.0)kΩ 5.4 18.4kΩ 13.2 5.2kΩ (133.0)kΩ 5.5 13.7kΩ 13.4 2.7kΩ (154.0)kΩ 5.6 10.6kΩ 13.6 0.7kΩ (181.0)kΩ 5.7 8.4kΩ 13.8 (217.0)kΩ 5.8 6.7kΩ 14.0 (268.0)kΩ 5.9 5.4kΩ 14.2 (343.0)kΩ 6.0 4.4kΩ 14.5 (570.0)kΩ 6.1 3.5kΩ 15.0 6.2 2.8kΩ 15.5 42.3kΩ 6.3 2.2kΩ 16.0 14.8kΩ 6.4 1.7kΩ 16.5 5.6kΩ 6.5 1.2kΩ 17.0 1.1kΩ R1 = (Blue) R2 = Black For technical support and more information, see inside back cover or visit www.ti.com/powertrends PACKAGE OPTION ADDENDUM www.ti.com 30-Aug-2012 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Qty Eco Plan (2) Lead/ Ball Finish MSL Peak Temp (3) Samples (Requires Login) PT6681B OBSOLETE SIP MODULE EEK 14 TBD Call TI Call TI PT6683P OBSOLETE SIP MODULE EED 14 TBD Call TI Call TI PT6683R NRND SIP MODULE EEE 14 12 Pb-Free (RoHS) Call TI N / A for Pkg Type PT6685P NRND SIP MODULE EED 14 12 Pb-Free (RoHS) Call TI N / A for Pkg Type PT6685R OBSOLETE SIP MODULE EEE 14 TBD Call TI Call TI PT6686B OBSOLETE SIP MODULE EEK 14 TBD Call TI Call TI (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/productcontent for 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. 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