For assistance or to order, call (800) 531-5782 Revised 7/15/98 PT6500 Series Application Notes Mechanical Outline Product Selector Guide 8 AMP ADJUSTABLE ISR WITH SHORT-CIRCUIT PROTECTION • • • • • • • 8A Single Device Power Up to 90% efficiency (PT6501) Small SIP Footprint Standby Function Internal Short Circuit Protection Over-Temperature Protection Adjustable Output Voltage The PT6500 series is Power Trends’ new high performance +3.1 to 6V input, 8 Amp, 14-Pin SIP (Single Inline-Package) Integrated Switching Regulator (ISR). This high-perfor- Pin-Out Information Pin Standard Application VO Adjust 14 11,12,13 4,5,6 VIN (+) Remote Sense PT6501,2,3 C1 C2 3 Q1 VOUT (+) 1 7,8,9,10 INH COM COM C1 = Required 330µF electrolytic C2 = Required 330µF electrolytic 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Function Remote Sense Do not connect STBY*-Standby Vin Vin Vin GND GND GND GND Vout Vout Vout Vout Adjust Ordering Information PT6501¨ † PT6502¨ PT6503¨ PT6504¨ † PT6505¨ † PT6506¨ † PT6507¨ † PT6508¨ = 3.3 Volts = 1.5 Volts = 2.5 Volts = 3.6 Volts = 1.2 Volts = 1.8 Volts = 1.3 Volts = 1.7 Volts mance ISR allows easy integration of high-speed, low-voltage Pentium processors and their support logic into existing 3.3V or 5V systems without redesigning the central power supply. The high-performance PT6502 solves the problem of providing the low terminating voltages required by BTL/ Futurebus+, CTT, HP, and GTL Buses from existing 3.3V or 5V power rails without redesigning the central power supply. PT Series Suffix (PT1234X) Case/Pin Configuration Heat Tab Configuration None Side Vertical Through-Hole Horizontal Through-Hole Horizontal Surface Mount †3.3V Input Bus Capable N A C R G B Pkg Style 400 Specifications PT6500 SERIES Characteristics (Ta=25°C unless noted) Symbols Conditions Min Typ Max Units Output Current Io Over Vin range 0.1* — 8.0 A Current Limit Icl Vin=+5V — 13.0 20.0 A Short Circuit Current Isc Vin=+5V — 15.0 — Apk Input Voltage Range Vin 0.1≤ Io≤ 8.0A 4.5 3.1 4.8 — — — 6 6 6 V V V Output Voltage Tolerance ∆Vo Vin = +5V, Io = 8.0A Ta = 0 to +70°C Vo-0.1 — Vo+0.1 V Output Adjust Range Vo Vnom = 3.3V Vnom = 1.5V Vnom = 2.5V Pin 14 to Vo or GND 2.25 1.27 1.80 2.50 — — — 4.20 2.65 3.50 4.30 Vinmin=3.1V or Vo+1.2V (whichever is greater) Line Regulation Regline 4.5V ≤ Vin ≤ 6.0V, Io = 8.0A (PT6501/4) (PT6502) 3.1V ≤ Vin ≤ 6.0V, Io = 8.0A 4.5V ≤ Vin ≤ 6.0V, Io = 8.0A (PT6503) — — ±7 ±3 ±7 ±17 ±8 ±13 mV Load Regulation Regload 0.1 ≤ Io ≤ 8.0A, Vin = +5V — — ±17 ±12 ±13 ±33 ±23 ±25 mV Vo Ripple/Noise Vn ttr Vos Vin = +5V, Io = 8.0 Amp — 50 — mVpp Transient Response with Co = 330µF Io step from 4A to 8.0A Vo over/undershoot — — 100 150 — — µsec mV Efficiency η Vin = +5V, Io = 3.0A — — — — — — 90 76 85 83 68 76 — — — — — — % % % % % % Vin = +5V, Io = 8.0A Vo=2.5V and 3.3V Vo=1.5V, 1.2V, 1.3V Vo=3.6V Vadj = (PT6501) Vadj = (PT6502) Vadj = (PT6503) Vadj = (PT6504) (PT6501/4) (PT6502) (PT6503) (PT6501/6504) (PT6502) (PT6503) (PT6501/6504) (PT6502) (PT6503) * ISR will operate down to no load with reduced specifications. Note: The PT6500 Series requires a 330µF electrolytic or tantalum input and output capacitor for proper operation in all applications. See PT6000/7000 Series Capacitor application note. 2 Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com (800) 531-5782 For assistance or to order, call PT6500 Series Specifications (continued) PT65000 SERIES Conditions Min Typ Max Units Switching Frequency ƒo Over Vin and Io ranges 475 600 725 KHz Absolute Maximum Operating Temperature Range Ta 0 — +85 °C Recommended Operating Temperature Range Ta Vin = +5V, Io = 6.0A Free Air Convection (40-60LFM) 0 — +70** °C Thermal Resistance θja Free Air Convection (40-60LFM) — 15 — °C/W Storage Temperature Ts — -40 — +125 °C Per Mil-STD-883D, Method 2002.3, 1msec, half sine, fixture mounted — 500 — G’s Mechanical Vibration — 7.5 — G’s Weight — 23 — grams Mechanical Shock ** See Thermal Derating charts. Note: The PT6500 Series requires a 330µF electrolytic or tantalum input and output capacitor for proper operation in all applications. C H A R A C T E R I S T I C PT6502, 1.5 VDC, Vin=5.0V PT6503, 2.5 VDC, Vin=5.0V (See Note 1) (See Note 1) (See Note 1) Efficiency vs Output Current Efficiency vs Output Current Efficiency vs Output Current 100 90 90 Vin 80 4.5V 70 5.0V 5.5V 60 90 Vin 3.1V 3.5V 4.0V 4.5V 5.0V 6.0V 80 70 60 6.0V Vin 80 1 2 3 4 5 Iout-(Amps) 6 7 5.0V 5.5V 6.0V 50 40 0 8 4.5V 60 40 0 4.0V 70 50 40 1 2 3 4 5 6 7 8 0 1 2 3 Ripple vs Output Current 35 40 20 5.0V 15 4.5V 10 3.1V 3.5V 4.0V 4.5V 5.0V 6.0V 30 20 8 Vin 40 6.0V 5.5V 30 5.0V 20 4.5V 4.0V 10 10 5 7 50 Vin Ripple-(mV) 5.5V Ripple-(mV) 6.0V 6 60 50 25 5 Ripple vs Output Current Vin 30 4 Iout-(Amps) Iout-(Amps) Ripple vs Output Current 0 0 0 0 1 2 3 4 5 6 7 8 0 0 Iout-(Amps) 1 2 3 4 5 6 7 Power Dissipation vs Output Current 6 6 5 6.0V 4 5.5V 3 5.0V 2 4.5V Pd-(Watts) Vin 5 2 3 4 5 Iout-(Amps) 6 7 8 4 5 6 7 8 7 6.0V 5.0V 4.5V 4.0V 3.5V 3.1V 4 3 2 6 Vin 5 6.0V 4 5.5V 3 5.0V 4.5V 2 4.0V 1 0 0 0 3 Power Dissipation vs Output Current Vin 1 1 1 2 Iout-(Amps) Power Dissipation vs Output Current 7 0 1 8 Iout-(Amps) Pd-(Watts) Ripple-(mV) 100 Efficiency-% 100 Efficiency-% Efficiency-% PT6501, 3.3 VDC, Vin=5.0V 50 Pd-(Watts) D A T A 0 1 2 3 4 5 Iout-(Amps) 6 7 8 0 1 2 3 4 5 6 7 8 Iout-(Amps) Note 1: All data listed in the above graphs, except for derating data, has been developed from actual products tested at 25°C. This data is considered typical data for the ISR. Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com 3 DATA SHEETS Symbols 5V to 3.x 3.3V BusConverters Products Characteristics (Ta=25°C unless noted) For assistance or to order, call (800) 531-5782 P T 6 5 0 0 THERMAL DERATING CURVES Air Flow (LFM) 60 T H E R M A L D A T A 200 300 PT6501 (See Note 1) No Heat Tab 25˚C 70˚C 6 Iout-(Amps) 6 85˚C 5 4 3 1 0 0 5 5.25 5.5 5.75 7 85˚C 6 3 1 4.75 70˚C 4 2 60˚C 70˚C 85˚C 5 4 3 2 1 0 4.5 6 (See Note 2) 8 5 2 4.5 35˚C 50˚C 7 60˚C Thermal Derating (Ta) (See Note 2) 8 35˚C 50˚C 7 Iout-(Amps) Thermal Derating (Ta) (See Note 2) 8 Iout-(Amps) Thermal Derating (Ta) 4.75 5 5.25 5.5 5.75 6 4.5 4.75 5 Vin-(Volts) Vin-(Volts) 5.25 5.5 5.75 6 Vin-(Volts) Heat Tab Thermal Derating (Ta) 50˚C 3 2 5 4 3 2 1 1 0 0 4.5 PT6502 4.75 5 5.25 Vin-(Volts) 5.5 5.75 6 6 Iout-(Amps) Iout-(Amps) 4 85˚C 7 6 5 (See Note 2) 70˚C 8 85˚C 7 85˚C 6 Thermal Derating (Ta) (See Note 2) 70˚C 8 60˚C 70˚C 7 Iout-(Amps) Thermal Derating (Ta) (See Note 2) 8 5 4 3 2 1 0 4.5 4.75 5 5.25 Vin-(Volts) 5.5 5.75 4.5 6 4.75 5 5.25 5.5 Vin-(Volts) 5.75 6 (See Note 1) No Heat Tab 85˚C 5 4 3 6 5 4 3 5 4 3 2 2 1 1 1 0 0 3.5 4 4.5 Vin-(Volts) 5 5.5 0 3 6 85˚C 7 2 3 (See Note 2) 70˚C 8 85˚C 6 Iout-(Amps) Iout-(Amps) 50˚C 60˚C 70˚C 7 70˚C 6 Thermal Derating (Ta) (See Note 2) 8 50˚C 60˚C 7 Thermal Derating (Ta) (See Note 2) 8 Iout-(Amps) Thermal Derating (Ta) 3.5 4 4.5 Vin-(Volts) 5 5.5 3 6 3.5 4 4.5 Vin-(Volts) 5 5.5 6 Heat Tab 50˚C Iout-(Amps) 5 4 3 5 4 3 1 0 0 4 4.5 Vin-(Volts) 5 5.5 6 70˚C 85˚C 7 6 1 3.5 85˚C 5 2 (See Note 2) 8 6 2 3 Thermal Derating (Ta) 70˚C 7 85˚C 6 (See Note 2) 8 60˚C 70˚C 7 Iout-(Amps) Thermal Derating (Ta) (See Note 2) 8 Iout-(Amps) Thermal Derating (Ta) 4 3 2 1 0 3 3.5 4 4.5 Vin-(Volts) 5 5.5 6 3 3.5 4 4.5 Vin-(Volts) 5 5.5 Note 1: All data listed in the above graphs, except for derating data, has been developed from actual products tested at 25°C. This data is considered typical data for the ISR. Note 2: Thermal derating graphs are developed in different air flow rates as indicated on each graph, with or without the heat tab, soldered in a printed circuit board. (See Thermal Application Notes.) 4 Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com 6 For assistance or to order, call P T 6 5 0 0 T H E R M A L (800) 531-5782 D A T A THERMAL DERATING CURVES 300 PT6503 (See Note 1) No Heat Tab 8 70˚C 7 Iout-(Amps) 70˚C 6 85˚C 5 Thermal Derating (Ta) (See Note 2) 8 50˚C 60˚C 7 Iout-(Amps) Thermal Derating (Ta) (See Note 2) 5 6 5 4 4 3 3 3 2 2 2 1 1 1 0 0 5 5.5 6 70˚C 85˚C 7 85˚C 6 4 4.5 (See Note 2) 8 Iout-(Amps) Thermal Derating (Ta) 0 4.5 4.75 5 Vin-(Volts) 5.25 Vin-(Volts) 5.5 5.75 6 4.5 4.75 5 5.25 Vin-(Volts) 5.5 5.75 6 Heat Tab Thermal Derating (Ta) Thermal Derating (Ta) (See Note 2) 50˚C 8 (See Note 2) Thermal Derating (Ta) 70˚C 8 70˚C 8 85˚C 60˚C 7 85˚C 6 5 85˚C Iout-(Amps) 70˚C Iout-(Amps) Iout-(Amps) 7 6 5 7 6 5 4 4 3 3 3 2 2 2 4 1 1 1 0 0 0 4.5 4.75 5 5.25 Vin-(Volts) 5.5 5.75 6 (See Note 2) 4.5 4.75 5 5.25 5.5 Vin-(Volts) 5.75 6 4.5 4.75 5 5.25 5.5 Vin-(Volts) 5.75 6 Note 1: All data listed in the above graphs, except for derating data, has been developed from actual products tested at 25°C. This data is considered typical data for the ISR. Note 2: Thermal derating graphs are developed in different air flow rates as indicated on each graph, with or without the heat tab, soldered in a printed circuit board. (See Thermal Application Notes.) Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com 5 DATA SHEETS 200 5V to 3.x 3.3V BusConverters Products Air Flow (LFM) 60 For assistance or to order, call Application Notes (800) 531-5782 PT6500/PT6600 Series More Application Notes Adjusting the Output Voltage of the PT6500 and PT6600 5V Bus Converters Figure 1 The output voltage of the Power Trends PT6500/PT6600 Series ISRs may be adjusted higher or lower than the factory trimmed pre-set voltage with the addition of a single external resistor. Table 1 accordingly gives the allowable adjustment range for each model in the series as Va (min) and Va (max). 1 V o(sense) 4,5,6 Vin PT6500/6600 11,12,13 Vo Vo Vin STBY 3 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). GND Vo(adj) 7,8,9,10 (R1) Adj Down + C in 330 µF 14 C out 330 µF + L O A D R2 Adjust Up Adjust Down: Add a resistor (R1), between pin 14 (Vo adjust) and pins 11-13 (Vout). COM COM The values of (R1) [adjust down], and R2 [adjust up], can also be calculated using the following formulae. 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. (R1) = R2 = Where: Vo Va Ro Rs 4. The minimum input voltage required by the part is Vout + 1.2 or 3.1V, whichever is higher. Ro (Va – 1.0) (Vo – Va) Ro Va - Vo – Rs kΩ kΩ – Rs = Original output voltage = Adjusted output voltage = The resistance value in Table 1 = The series resistance from Table 1 Table 1 PT6500/6600 ADJUSTMENT AND FORMULA PARAMETERS Series Pt # PT6505 PT6605 PT6507 PT6607 PT6502 PT6602 PT6508 PT6608 PT6506 PT6606 PT6503 PT6603 PT6501 PT6601 PT6504 PT6604 Vo (nom) Va (min) 1.2 1.3 1.5 1.7 1.8 2.5 3.3 3.6 1.14 1.19 1.27 1.36 1.4 1.8 2.25 2.5 Va (max) Ω) Ro (kΩ 2.35 2.45 2.65 2.85 2.95 3.5 4.2 4.3 2.49 2.49 2.49 2.49 2.49 4.99 12.1 10.0 Ω) Rs (kΩ 2.0 2.0 2.0 2.0 2.0 4.22 12.1 12.1 Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com 3 For assistance or to order, call (800) 531-5782 Application PT6500/PT6600 Series Notes Table 2 PT6500/PT6600 ADJUSTMENT RESISTOR VALUES Series Pt # Vo (nom) Va (req’d) 1.15 PT6505 PT6605 1.2 PT6507 PT6607 1.3 PT6502 PT6602 1.5 PT6508 PT6608 1.7 PT6506 PT6606 1.8 PT6503 PT6603 2.5 PT6501 PT6601 3.3 (5.5)kΩ 1.2 (3.0)kΩ 1.25 47.8kΩ (10.5)kΩ 1.3 22.9kΩ 1.35 14.6kΩ 47.8kΩ 1.4 10.5kΩ 22.9kΩ (8.0)kΩ (1.3)kΩ (0.5)kΩ 1.45 8.0kΩ 14.6kΩ (20.4)kΩ (2.5)kΩ (1.2)kΩ 1.5 6.3kΩ 10.5kΩ (4.2)kΩ (2.2)kΩ 1.55 5.1kΩ 8.0kΩ 47.8kΩ (7.1)kΩ (3.5)kΩ 1.6 4.2kΩ 6.3kΩ 22.9kΩ (12.9)kΩ (5.5)kΩ 1.65 3.5kΩ 4.1kΩ 14.6kΩ (30.4)kΩ 1.7 3.0kΩ 4.2kΩ 10.5kΩ 1.75 2.5kΩ 3.5kΩ 8.0kΩ 47.8kΩ 1.8 2.2kΩ 3.0kΩ 6.3kΩ 22.9kΩ 1.85 1.8kΩ 2.5kΩ 5.1kΩ 14.6kΩ 47.8kΩ (2.3)kΩ 1.9 1.6kΩ 2.2kΩ 4.2kΩ 10.5kΩ 22.9kΩ (3.3)kΩ 1.95 1.3kΩ 1.8kΩ 3.5kΩ 8.0kΩ 14.6kΩ (4.4)kΩ 2.0 1.1kΩ 1.6kΩ 3.0kΩ 6.3kΩ 10.5kΩ (5.8)kΩ 2.05 0.9kΩ 1.3kΩ 2.5kΩ 5.1kΩ 8.0kΩ (7.4)kΩ 2.1 0.8kΩ 1.1kΩ 2.2kΩ 4.2kΩ 6.3kΩ (9.5)kΩ 2.15 0.6kΩ 0.9kΩ 1.8kΩ 3.5kΩ 5.1kΩ (12.2)kΩ 2.2 0.5kΩ 0.8kΩ 1.6kΩ 3.0kΩ 4.2kΩ (15.7)kΩ 2.25 0.4kΩ 0.6kΩ 1.3kΩ 2.5kΩ 3.5kΩ (20.7)kΩ (2.3)kΩ 2.3 0.3kΩ 0.5kΩ 1.1kΩ 2.2kΩ 3.0kΩ (28.2)kΩ (3.6)kΩ 2.35 0.2kΩ 0.4kΩ 0.9kΩ 1.8kΩ 2.5kΩ (40.7)kΩ (5.1)kΩ 2.4 0.3kΩ 0.8kΩ 1.6kΩ 2.2kΩ (65.6)kΩ (6.7)kΩ 2.45 0.2kΩ 0.6kΩ 1.3kΩ 1.8kΩ (140.0)kΩ 2.5 0.5kΩ 1.1kΩ 1.6kΩ 2.55 0.4kΩ 0.9kΩ 1.3kΩ 2.6 0.3kΩ 0.8kΩ 2.65 0.2kΩ (1.7)kΩ (3.8)kΩ (8.8)kΩ (15.4)kΩ (35.4)kΩ (1.5)kΩ (8.5)kΩ (10.6)kΩ (1.5)kΩ 95.6kΩ (12.9)kΩ (2.7)kΩ 1.1kΩ 45.7kΩ (15.6)kΩ (3.9)kΩ 0.6kΩ 0.9kΩ 29.0kΩ (18.6)kΩ (5.3)kΩ 0.5kΩ 0.8kΩ 20.7kΩ (22.2)kΩ (6.8)kΩ 2.75 0.4kΩ 0.6kΩ 15.7kΩ (26.4)kΩ (8.5)kΩ 2.8 0.3kΩ 0.5kΩ 12.4kΩ (31.5)kΩ (10.4)kΩ 2.85 0.2kΩ 2.7 0.4kΩ 10.0kΩ (37.6)kΩ (12.6)kΩ 2.9 0.3kΩ 8.3kΩ (45.4)kΩ (15.0)kΩ 2.95 0.2kΩ 0.9kΩ (55.3)kΩ (17.9)kΩ 3.0 5.8kΩ (68.6)kΩ (21.2)kΩ 3.1 4.1kΩ (115.0)kΩ (29.9)kΩ 3.2 2.9kΩ (254.0)kΩ (42.9)kΩ 3.3 2.0kΩ 3.4 1.3kΩ 109.0kΩ (108.0)kΩ 3.5 0.8kΩ 48.4kΩ (238.0)kΩ (64.6)kΩ 3.6 28.2kΩ 3.7 18.2kΩ 87.9kΩ 3.8 12.1kΩ 37.9kΩ 3.9 4/. Vout >3.8Vdc requires Vin >5.0Vdc ! 8.1kΩ 21.2kΩ 4.0 5.2kΩ 12.9kΩ 4.1 3.0kΩ 7.9kΩ 4.2 1.3kΩ 4.6kΩ 4.3 R1 = (Red) 4 PT6504 PT6604 3.6 2.2kΩ R2 = Black Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com IMPORTANT NOTICE Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those pertaining to warranty, patent infringement, and limitation of liability. TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in accordance with TI’s standard warranty. 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