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| LIN D O C #: 5213 LX5213 9-LINE LOW CAPACITANCE, POWER SCSI TERMINATOR T HE I NFINITE P OWER OF I N N O VAT I O N P RODUCTION D ATA S HEET DESCRIPTION The LX5213 is a nine-line active terminator for the SCSI parallel bus. This SCSI standard recommends active termination at both ends of the SCSI bus. During disconnect mode, the LX5213 requires a meager 60A of supply current while offering only 3.5pF of output capacitance. To enter this low-power mode, the disconnect pin can be left open (floating) or driven high, thereby disconnecting the terminating resistors and placing the internal low dropout regulator into low-power mode. In disconnect mode, each termination line presents a high impedance to the SCSI bus with the overall effect being to preserve high-signal integrity and yield subsequent reliable, errorfree communications. During normal operation, the LX5213 consumes only 600A of current, which is the lowest enabled supply current of any terminator available on the market today. Linfinity's proprietary BiCMOS low dropout regulator architecture enables this unique and very efficient operating characteristic. The LX5213 also offers a precisely trimmed channel output current specified to a 5% tolerance. The maximum value of the output current is trimmed as closely as possible to the SCSI standard maximum specification to give the highest possible noise margin for fast SCSI operation. And the LX5213 sinks up to 150mA of current, making it compatible with today's fast active negation drivers. The LX5213 is a superior, pin-for-pin replacement for a variety of industry products such as the UC5603 and UC5613. K E Y F E AT U R E S s 3.5pF OUTPUT CAPACITANCE DURING DISCONNECT s 60A SUPPLY CURRENT IN DISCONNECT MODE s 600A SUPPLY CURRENT DURING NORMAL OPERATION s 150mA SINK CURRENT FOR ACTIVE NEGATION s LOGIC COMMAND DISCONNECTS ALL TERMINATION LINES s CURRENT LIMIT AND THERMAL PROTECTION s COMPATIBLE WITH SCSI 1, 2 AND 3 STANDARDS s CONSULT FACTORY FOR APPLICATION TEST REPORT: 5213TR IMPORTANT: For the most current data, consult LinFinity's web site: http://www.linfinity.com. PRODUCT HIGHLIGHT RE C E I V I N G W AV E F O R M - 10MH Z D R I V I N G WAV E F O R M - 10MH Z Receiver 1 Meter, AWG 28 LX5213 LX5268 Driver LX5213 LX5268 NOTE: For An In-Depth Discussion On Applying SCSI, Request Linfinity Application Note: "Understanding The Single-Ended SCSI Bus" PA C K A G E O R D E R I N F O R M AT I O N TA (C) 0 to 70 N Plastic DIP 16-pin LX5213CN PWP Plastic TSSOP 24-pin, Power LX5213CPWP DP Plastic SOIC 16-pin, Power LX5213CDP Note: All surface-mount packages are available in Tape & Reel. Append the letter "T" to part number. (i.e. LX5213CDPT) Copyright (c) 1997 Rev. 1.9 7/97 LINFINITY MICROELECTRONICS INC. 11861 WESTERN AVENUE, GARDEN GROVE, CA. 92841, 714-898-8121, FAX: 714-893-2570 1 P R O D U C T D ATA B O O K 1 9 9 6 / 1 9 9 7 LX5213 9-LINE LOW CAPACITANCE, POWER SCSI TERMINATOR P RODUCTION D ATA S HEET A B S O L U T E M A X I M U M R AT I N G S (Note 1) PA CKA GE PIN OUTS T7 T8 T9 N.C. GND DISCONNECT T1 T2 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 TermPwr Voltage ................................................................................................. +7V Signal Line Voltage ................................................................................... 0V to +7V Regulator Output Current ................................................................................... 0.4A Operating Junction Temperature Plastic (N, PWP, DP Packages) .................................................................... 150C Storage Temperature Range .............................................................. -65C to 150C Lead Temperature (Soldering, 10 seconds) .................................................... 300C Note 1. Exceeding these ratings could cause damage to the device. All voltages are with respect to Ground. Currents are positive into, negative out of the specified terminal. T6 T5 REG OUT N.C. N.C. VTERM T4 T3 N PACKAGE (Top View) T H E R MAL DATA N PACKAGE: THERMAL RESISTANCE-JUNCTION TO AMBIENT, JA PWP PACKAGE: THERMAL RESISTANCE-JUNCTION TO LEADS, JL THERMAL RESISTANCE-JUNCTION TO AMBIENT, JA DP PACKAGE: THERMAL RESISTANCE-JUNCTION TO LEADS, JL THERMAL RESISTANCE-JUNCTION TO AMBIENT, JA 20C/W 45C/W 27C/W 60C/W 65C/W T7 T8 T9 N.C. GND HEATSINK/GND HEATSINK/GND HEATSINK/GND HEATSINK/GND DISCONNECT T1 T2 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 T6 T5 REG OUT N.C. HEATSINK/GND HEATSINK/GND HEATSINK/GND HEATSINK/GND N.C. VTERM T4 T3 Junction Temperature Calculation: TJ = TA + (PD x JA). The JA numbers are guidelines for the thermal performance of the device/pc-board system. All of the above assume no ambient airflow. T7 T8 T9 HEATSINK/GND GND DISCONNECT T1 T2 PWP PACKAGE (Top View) 16 2 3 4 5 6 7 8 15 14 13 12 11 10 9 POWER UP / POWER DOWN FUNCTION TABLE Disconnect L H Open Outputs Enabled HI Z HI Z Quiescent Current 600A 60A 60A T6 T5 REG OUT HEATSINK/GND HEATSINK/GND VTERM T4 T3 DP PACKAGE (Top View) 2 Copyright (c) 1997 Rev. 1.9 7/97 P R O D U C T D ATA B O O K 1 9 9 6 / 1 9 9 7 LX5213 9-LINE LOW CAPACITANCE, POWER SCSI TERMINATOR P RODUCTION D ATA S HEET R E C O M M E N D E D O P E R AT I N G C O N D I T I O N S Parameter TermPwr Voltage Signal Line Voltage Disconnect Input Voltage Output Capacitor on REGOUT Operating Virtual Junction Temperature Range LX5213C Note 2. Range over which the device is functional. (Note 2) Symbol VTERM Recommended Operating Conditions Min. Typ. Max. 4 0 0 2.2 0 5.25 5 VTERM Units V V V F C 125 ELECTRICAL CHARACTERISTICS (Unless otherwise specified, these specifications apply over the operating ambient temperature range of 0C T A 70C. TermPwr = 4.75V, Disconnect = 0V. Low duty cycle pulse testing techniques are used which maintains junction and case temperatures equal to the ambient temperature.) Parameter Supply Current Section TermPwr Supply Current Power Down Mode Symbol Test Conditions Min. LX5213 Typ. Max. 0.6 194 60 1.2 208 100 116 120 -23 -23 -23 -23 400 Units All term lines = Open All term lines = 0.5V Disconnect = Open ITERM = -5mA to -15mA, TA = 25C ITERM = -5mA to -15mA VOUT = 0.5V, T A = 25C VOUT = 0.5V, 0C TA 70C VOUT = 0.5V, V TERM = 4V, TA = 25C VOUT = 0.5V, V TERM = 4V, 0C TA 70C Disconnect = Open, VTERM = 0V to 5.25V Disconnect = Open VOUT = 4V 104 100 2.7 -20.3 -19.0 -19.5 -18.0 mA mA A V mA mA mA mA nA pF mA V mV mV V mA C V A Output Section (Terminator Lines) Terminator Impedance Terminator Output High Voltage Max. Output Current 110 110 2.9 -21.8 -21.8 -21.8 -21.8 10 3.5 30 3.6 10 20 0.7 -200 150 0.8 Disconnect = 0V Output Leakage Output Capacitance Sink Current 20 Regulator Section Regulator Output Voltage Line Regulation Load Regulation Drop Out Voltage Short Circuit Current Thermal Shutdown VTERM = 4V to 6V I REG = 0 to -50mA IREG = -50mA VREG = 0V 20 50 1.0 -350 Disconnect Section Disconnect Threshold Input Current 2.0 40 Copyright (c) 1997 Rev. 1.9 7/97 3 P R O D U C T D ATA B O O K 1 9 9 6 / 1 9 9 7 LX5213 9-LINE LOW CAPACITANCE, POWER SCSI TERMINATOR P RODUCTION D ATA S HEET BLOCK DIAGRAM FIGURE 1 -- LX5213 BLOCK DIAGRAM REG OUT VTERM DISCONNECT VBG T0 VTERM Channel 1 of 9 VTERM T8 A P P L I C AT I O N S C H E M AT I C FIGURE 2 -- 8-BIT SCSI SYSTEM APPLICATION 5V 2.2F TERM POWER VTERM HOST PERIPHERAL TERM POWER VTERM 2.2F 5V DISCONNECT LX5213 REGOUT 2.2F LX5213 DB (6) DB (7) DB (P) DB (6) DB (7) DB (P) ~~~ REGOUT 2.2F TERMPWR VTERM TERMPWR DISCONNECT 2.2F Copyright (c) 1997 Rev. 1.9 7/97 DISCONNECT ATN BSY ACK RST MSG VTERM SCSI CABLE ATN BSY LX5213 ACK RST MSG LX5213 REGOUT 2.2F ~~~ ~~ REGOUT Note: Add third LX5213 for 16-bit SCSI PRODUCTION DATA - Information contained in this document is proprietary to Lin Finity, and is current as of publication date. This document may not be modified in any way without the express written consent of LinFinity. Product processing does not necessarily include testing of all parameters. Linfinity reserves the right to change the configuration and performance of the product and to discontinue product at any time. 4 DISCONNECT DB (0) DB (1) ~~ DB (0) DB (1) |
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