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LXM1700-12

LXM1700-12

  • 厂商:

    MICROSEMI(美高森美)

  • 封装:

  • 描述:

    LXM1700-12 - PENTIUM II VRM MODULE - Microsemi Corporation

  • 数据手册
  • 价格&库存
LXM1700-12 数据手册
LIN D O C # : 1700 LXM1700-xx/1700A-xx P T HE ENTIUM ® II VRM M D ATA ODULE I NFINITE P OWER OF I N N O VAT I O N P RELIMINARY S HEET DESCRIPTION The LXM1700/1700A series of DC/DC converters are Voltage Regulator Modules (VRM) which are specifically designed to meet or exceed the Intel VRM8.1 DC/DC Converter electrical specification as well as its mechanical outline. The LXM1700-xx/1700A-xx is guaranteed to deliver a maximum current of at least 14A. These converters maintain a total tolerance of ±5% maximum, which includes load and line regulation, temperature stability, inital accuracy, load transient and ripple and noise. One of the main features of these converters is their ability to program the output voltage from 1.8 to 3.5V using a 5-bit word from the processors, providing automatic voltage adjustment for each individual processor. Other features include high efficiency, short-circuit protection, over-voltage protection (LXM1700-xx only), under-voltage detection, soft start and logic level output enable functions. The LXM1700-05/1700A-05 powers the processor using the 5V supply as the input power and 12V for the control bias. The LXM1700-12/ 1700A-12 powers the processor using only the 12V supply and does not need a separate voltage for the control bias (see Block Diagram below). The +5V or the +12V input configuration is factory set via simple jumper connections. The LXM1700-12/1700A-12 is primarily used for multiple processor applications, such as quad processor servers, where 5V supplies may not have the needed current capability. K E Y F E AT U R E S s GUARANTEED 14.0A OUTPUT p TOTAL OUTPUT TOLERANCE OF LESS THAN ±5% — Includes: Line & load regulation, temperature stability, initial accuracy, load transient and ripple & noise. p ADJUSTABLE OUTPUT VOLTAGE USING A FIVE-BIT WORD (See Table 1) p OVER-VOLTAGE DETECTION CROWBARS THE OUTPUT VOLTAGE IN THE EVENT OF PASS TRANSISTOR FAILURE - 100% PROCESSOR PROTECTION (LXM1700-xx) p HIGH EFFICIENCY — 85% (TYP.) p POWER GOOD SIGNAL INDICATES LOW OUTPUT VOLTAGE p SOFT-START ELIMINATES TURN-ON OVERSHOOT p SHORT-CIRCUIT PROTECTION p OUTPUT ENABLE /SHUTDOWN A P P L I C AT I O N S s PENTIUM II PROCESSOR s PENTIUM PRO PROCESSOR s ADVANCED MICROPROCESSOR SUPPLIES MODULE PHOTO BLOCK DIAGRAM 5V 12V 12V 5VIN 12VIN 12VIN VSS UP# PWRGD VID4 VID3 VID2 VID1 VID0 OUTEN LXM1700-05/1700A-05 VSS UP# PWRGD VID4 VID3 VID2 VID1 VID0 OUTEN µP µP Disable Disable LXM1700-05/1700A-05 IN A +5V SUPPLY APPLICATION M O D U L E O R D E R I N F O R M AT I O N LXM1700-12/1700A-12 IN A +12V SUPPLY APPLICATION Part # LXM1700-05 LXM1700-12 LXM1700A-05 LXM1700A-12 Input +5V, +12V +12V +5V, +12V +12V IMAX 14.0A 14.0A 14.0A 14.0A O.V. Protection Crowbar Yes No F O R F U R T H E R I N F O R M AT I O N C A L L ( 7 1 4 ) 8 9 8 - 8 1 2 1 Copyright © 1997 Rev. 0.4 4/97 LXM1700-12/1700A-12 VCC (VID) VCCP (VID) 11861 WESTERN A VENUE , G ARDEN G ROVE , CA. 92841 1 PRODUCT DATABOOK 1996/1997 LXM1700-xx/1700A-xx P P ENTIUM ® II VRM M D ATA ODULE RELIMINARY S HEET ELECTRICAL Parameter Input Voltage Range Total Output Voltage Tolerance Includes: Initial Accuracy Load Regulation Line Regulation Temp. Stability Load Transient Output Ripple & Noise Output Current +5V +12V CHARACTERISTICS Test Conditions LXM1700-xx/1700A-xx Min. Typ. Max. 4.75 11.4 2.945 5 12 3.1 ±0.6 15 1 16 95 12 5.25 12.6 3.255 Symbol VIN VO Units V V V % mV mV mV mV mV A A V V V V ms % % V A °C LFM Maximum Minimum IO VTHPG RLOPG OUTEN VOL VOH TR Eff VOV ISC TA 3.1V Set Point IO = 0.5A, TA = 25°C I O = 0.5A to 14.0A 0.95VIN to 1.05V IN 10 to 60°C I O = 0.5A to 14.0A, VIN = 5V I O = 5A VO = 3.1V 14.0 0 0.93VSET Power Good Threshold Power Good Output LO Voltage Output Enable LO Level Input Voltage HI Level Input Voltage Turn-on Response Efficiency LXM1700-05/1700A-05 LXM1700-12/1700A-12 Over-Voltage Threshold LXM1700-xx Average Short-Circuit Current Ambient Temperature Required Air Flow ISINK = 5mA IOL = 1mA IOH = 1mA 0 to 99% of VO after VIN reaches 90% IO = 14.0A IO = 14.0A VO = 3.1V VO = 0V IO = 14.0A 0.4 0.8 2 10 80 80 3.41 0 100 85 85 3.57 2 3.72 60 Table 1 - Voltage Identification Code 0 = Connected to VSS , 1 = Open or pull-up to VIN Processor Pins VID2 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 VCC (VID) (VDC) * * * * * * * * * * 1.80 1.85 1.90 1.95 2.00 2.05 0 = Connected to VSS , 1 = Open or pull-up to VIN Processor Pins VID2 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 VCC (VID) (VDC) No CPU 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 VID4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 VID3 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 VID1 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 VID0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 VID4 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 VID3 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 VID1 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 VID0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 * Level reserved for future requirements; VRM8.1 output shall be disabled for these VID codes. 2 Copyright © 1997 Rev. 0.4 4/97 PRODUCT DATABOOK 1996/1997 LXM1700-xx/1700A-xx P P ENTIUM ® II VRM M D ATA ODULE RELIMINARY S HEET CONNECTOR PIN-OUTS AND DESCRIPTIONS Pin # A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A16 A17 A18 A19 A20 Ref. Desig. 5VIN 5VIN 5VIN 12VIN Reserved ISHARE VID0 VID2 VID4 VCC (VID) VSS VCC (VID) VSS VCC (VID) VSS VCC (VID) VSS VCC (VID) VSS VCC (VID) Description 5V Input Power (not needed for LXM1700-12) 5V Input Power (not needed for LXM1700-12) 5V Input Power (not needed for LXM1700-12) 12V Input Power This pin is reserved for future applications Consult Factory Bit 0 of the 5-bit input (see Table 1) Bit 2 of the 5-bit input (see Table 1) Bit 4 of the 5-bit input (see Table 1) Output voltage to microprocessor Output voltage return Output voltage to microprocessor Output voltage return Output voltage to microprocessor Output voltage return Output voltage to microprocessor Output voltage return Output voltage to microprocessor Output voltage return Output voltage to microprocessor Pin # B1 B2 B3 B4 B5 B6 B7 B8 B9 B10 B11 B12 B13 B14 B15 B16 B17 B18 B19 B20 Ref. Desig. 5VIN 5VIN Reserved 12VIN UP # OUTEN VID1 VID3 PWRGD VSS VCC (VID) VSS VCC (VID) VSS VCC (VID) VSS VCC (VID) VSS VCC (VID) VSS Description 5V Input Power (not needed for LXM1700-12) 5V Input Power (not needed for LXM1700-12) This pin is reserved for future applications 12V Input Power A TTL input indicates the presence of an upgrade processor. LOW = Upgrade processor A TTL input that disables output when it switches to LO state Bit 1 of the 5-bit input (see Table 1) Bit 3 of the 5-bit input (see Table 1) An open collector output that switches LO when output is below the specified range Output voltage return Output voltage to microprocessor Output voltage return Output voltage to microprocessor Output voltage return Output voltage to microprocessor Output voltage return Output voltage to microprocessor Output voltage return Output voltage to microprocessor Output voltage return MODULE DIMENSIONS 3.10 (78.74) 0.188 (4.78) 2.725 (69.22) TOP VIEW 1.00 (25.4) 1.50 (38.1) 0.30 (7.62) Max. 0.26 (6.60) Min. 0.15 (3.81) Typical Connector Power Board 0.42 (10.67) Typical 0.065 (1.65) Ref (Facing Connector) A20 FRONT VIEW Power Board Component Area B20 Connector B1 0.80 (20.32) A1 0.062 ±0.008 (1.58 ±0.20) Note: All dimensions in inches (mm). Copyright © 1997 Rev. 0.4 4/97 3 PRODUCT DATABOOK 1996/1997 LXM1700-xx/1700A-xx P P ENTIUM ® II VRM M D ATA ODULE RELIMINARY S HEET A P P L I C AT I O N I N F O R M AT I O N 3.3V 10K 10K 10K 10K 10K 10K CTRL INPUT DC INPUT VID0 VID1 VID2 VID3 VID4 DISABLE (LO) ENABLE (HI or Open) OUTEN UP# VCC (VID) GND GND 3.3V 4.7K PGOOD 0.1µf PENTIUM PRO PROCESSOR VID Pins LXM1700/1700A PART # LXM1700-05/1700A-05 LXM1700-12/1700A-12 DC INPUT +5V +12V CTRL INPUT +12V N.C. FIGURE 1. — TYPICAL APPLICATION OF THE LXM1700-xx/1700A-xx Note: 10k pull-up resistors are optional and needed only in cases of noise suppression or long leads. Pentium is a registered trademark of Intel Corporation. 4 Copyright © 1997 Rev. 0.4 4/97
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