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| For assistance or to order, call (800) 531-5782 PT7600 Series 10 AMP PROGRAMMABLE INTEGRATED SWITCHING REGULATOR Features * Single-Device: +5V input * 5-bit Programmable: 1.3V to 3.5V@10A Application Notes Mechanical Outline Product Selector Guide Revised 5/15/98 * High Efficiency * Input Voltage Range: 4.5V to 5.5V * Differential Remote Sense * 27-pin SIP Package The PT7600 is a new series of highperformance, 10 Amp Integrated Switching Regulators (ISRs) housed in a 27-pin SIP package. The 10A capability allows easy integration of the latest high-speed, low-voltage Ps and bus drivers into existing 5V systems. The output voltage of the PT7600 is easily programmed with a 5 bit input compatible with Intel's Pentium(R) II Processor from 1.3V to 3.5V. A differential remote sense is also provided which automatically compensates for any voltage drop from the ISR to the load. 1200F of output capacitance are required for proper operation. Pin-Out Information Pin Function 1 VID0 VID1 VID2 VID3 STBY* - Stand-by Pin Function 10 11 12 13 14 15 16 17 18 Vin Vin Remote Sense Gnd Pin Function 19 20 21 22 23 24 25 26 27 GND Vout Vout Vout Vout Vout Vout Remote Sense Vout Standard Application PROGRAMMING PINS VID0 VID1 VID2 VID3 VID4 REMOTE SENSE (+) 6432 1 26 2 3 4 5 VOUT GND GND GND GND GND GND VIN L1 7 - 11 1H + 27 PT7600 13 - 19 5 12 20 - 25 6 7 LOAD VID4 Vin Vin Vin CIN SYNC OUT GND STBY* COUT + GND REMOTE SENSE (-) 8 9 Do not connect C in = Required 1200F electrolytic C out = Required 1200F electrolytic L1 = Optional 1H input choke For STBY* pin; open = output enabled; ground = output disabled. Specifications Characteristics (Ta = 25C unless noted) Output Current Input Voltage Range Output Voltage Tolerance Line Regulation Load Regulation Vo Ripple/Noise pk-pk Transient Response with Cout = 1200F Efficiency PT7600 SERIES Symbols Io Vin Vo Regline Regload Vn ttr Vos Conditions Ta = +60C, 200 LFM, pkg N Ta = +25C, natural convection 0.1A Io 10A Vin = +5V, Io = 10A 0C Ta +55C 4.5V V in 5.5V, Io = 10A Vin = +5V, 0.1 Io 10A Vin = +5V, I o = 10A Io step between 5A and 10A Vo over/undershoot Vin = +5V, Io = 10A Vo Vo Vo Vo Vo = 3.3V = 2.9V = 2.5V = 1.8V = 1.5V Min 0.1 * 0.1 * 4.5 ** Vo-0.03 -- -- -- -- -- -- -- -- -- -- 650 0 Forced Air Flow = 200 LFM Over Vin and Io Ranges -- Per Mil-STD-883D, Method 2002.3 1 msec, Half Sine, mounted to a fixture Per Mil-STD-883D, Method 2007.2, 20-2000 Hz, Soldered in a PC board -- Vertical/Horizontal 0 -40 -- -- -- Typ -- -- -- -- 10 10 50 100 200 80 78 75 69 65 700 -- -- -- 500 10 31/41 Max 10 10 5.5 Vo+0.03 -- -- -- -- -- -- -- -- -- -- 750 +85 +65*** +125 -- -- -- Units A A V V mV mV mV Sec mV % % % % % kHz C C C G's G's grams Switching Frequency Absolute Maximum Operating Temperature Range Recommended Operating Temperature Range Storage Temperature Mechanical Shock Mechanical Vibration Weight o Ta Ta Ts 4.5V V in 5.5V 0.1A Io 10A * ISR-will operate down to no load with reduced specifications. Please note that this product is not short-circuit protected. ** The minimum input voltage is 4.5V or Vout+1.2V, whichever is greater. *** See SOA curves. Output Capacitors: The PT7600 series requires a minimum output capacitance of 1200F for proper operation. Do not use Oscon type capacitors.The maximum allowable output capacitance is 7,500F. See Capacitor Application Note. Input Filter: An input filter is optional for most applications. The input inductor must be sized to handle 10ADC with a typical value of 1H. The input capacitance must be rated for a minimum of 1.0 Arms of ripple current. For transient or dynamic load applications, additional capacitance may be required. 36 Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com For assistance or to order, call (800) 531-5782 PT7600 Programming Information VID3 VID2 VID1 VID0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 Series Ordering Information PT7601t = 1.3 to 3.5 Volts t (For dimensions and PC board layout, see Package Styles 800 & 810.) 1.30V 1.35V 1.40V 1.45V 1.50V 1.55V 1.60V 1.65V 1.70V 1.75V 1.80V 1.85V 1.90V 1.95V 2.00V 2.05V VID4=1 VID4=0 Vout Vout 2.0V 2.1V 2.2V 2.3V 2.4V 2.5V 2.6V 2.7V 2.8V 2.9V 3.0V 3.1V 3.2V 3.3V 3.4V 3.5V 5V5V Bus Converters to 3.x Products DATA SHEETS PT Series Suffix (PT1234X) Case/Pin Configuration Vertical Through-Hole Horizontal Through-Hole Horizontal Surface Mount N A C Logic 0 = Pin 12 (remote sense gnd) potential Logic 1 = Open circuit (no pull-up resistors) CHARACTERISTIC DATA PT7601, 3.3 VDC See Note 1) Safe Operating Area Curve (@Vin=+5V) 90 100 Efficiency vs Output Current Ambient Temperature (C) 80 90 Efficiency - % 70 60 50 40 30 Airflow Nat Conv 60LFM 100LFM 200LFM 80 Vin 4.5V 70 5.0V 5.5V 60 50 20 0 2 4 6 8 10 40 0 2 4 6 8 10 lout-(Amps) Iout-(Amps) Ripple vs Output Current 40 35 30 Ripple-(mV) 25 Vin 5.5V 20 5.0V 4.5V 15 10 5 0 0 2 4 6 8 10 Iout-(Amps) Power Dissipation vs Output Current 9 8 7 PD-(Watts) Vin 6 5 4 3 2 1 0 0 2 4 6 8 10 5.5V 5.0V 4.5V Iout-(Amps) Note 1: SOA curves represent operating conditions at which internal components are at or below manufacturer's maximum rated operating temperatures. Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http:// www.powertrends.com 37 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. Testing and other quality control techniques are utilized to the extent TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily performed, except those mandated by government requirements. CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE ("CRITICAL APPLICATIONS"). TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, AUTHORIZED, OR WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHER CRITICAL APPLICATIONS. INCLUSION OF TI PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO BE FULLY AT THE CUSTOMER'S RISK. In order to minimize risks associated with the customer's applications, adequate design and operating safeguards must be provided by the customer to minimize inherent or procedural hazards. TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other intellectual property right of TI covering or relating to any combination, machine, or process in which such semiconductor products or services might be or are used. TI's publication of information regarding any third party's products or services does not constitute TI's approval, warranty or endorsement thereof. Copyright (c) 1999, Texas Instruments Incorporated |
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