IDTQS3VH126 3.3V QUAD ACTIVE HIGH SWITCH FOR HOT SWAP APPLICATIONS INDUSTRIAL TEMPERATURE RANGE QUICKSWITCH(R) PRODUCTS 3.3V QUAD ACTIVE HIGH SWITCH FOR HOT SWAP APPLICATIONS (HOTSWITCHTM) IDTQS3VH126 FEATURES: DESCRIPTION: * N channel FET switches with no parasitic diode to VCC - No DC path to VCC or GND - 5V tolerant in OFF and ON state * 5V tolerant I/Os typical * Low RON - 4 * Flat RON characteristics from 0 - 5V * Rail-to-rail switching 0 - 5V * Bidirectional dataflow with near-zero delay: no added ground bounce * Excellent RON matching between channels * VCC operation: 2.3V to 3.6V * High bandwidth - up to 500MHz * LVTTL-compatible control Inputs * Undershoot Clamp Diodes on all switch and control Inputs * Low I/O capacitance, 4pF typical * Available in QSOP and SOIC packages The QS3VH126 bus switch is specially designed for a hot-swapping environment. The QS3VH126 has very low ON resistance, resulting in under 250ps propagation delay through the switch. The switches can be turned ON under the control of individual LVTTL-compatible active high Output Enable signals for bidirectional data flow with no added delay or ground bounce. In the ON state, the switches can pass signals up to 5V. In the OFF state, the switches offer very high impedence at the terminals. The combination of near-zero propagation delay, high OFF impedance, and over-voltage tolerance makes the QS3VH126 ideal for hot-swapping applications. The QS3VH126 is characterized for operation from -40C to +85C. APPLICATIONS: * * * * * PCI/Compact PCI hot-swapping 10/100 Base-T, Ethernet LAN switch Low distortion analog switch Replaces mechanical relay ATM 25/155 switching FUNCTIONAL BLOCK DIAGRAM 1A 2A 3A 4A 1Y 2Y 3Y 4Y 1O E 2O E 3O E 4O E The IDT logo is a registered trademark of Integrated Device Technology, Inc. INDUSTRIAL TEMPERATURE RANGE NOVEMBER 2001 1 c 2001 Integrated Device Technology, Inc. DSC-5774/1 IDTQS3VH126 3.3V QUAD ACTIVE HIGH SWITCH FOR HOT SWAP APPLICATIONS ABSOLUTE MAXIMUM RATINGS(1) PIN CONFIGURATION NC 1 INDUSTRIAL TEMPERATURE RANGE 16 VCC Symbol Description VTERM(2) Max Unit VTERM(3) Supply Voltage to Ground -0.5 to +4.6 V DC Switch Voltage VS -0.5 to +5.5 V VTERM(3) DC Input Voltage VIN -0.5 to +5.5 V VAC AC Input Voltage (pulse width 20ns) -3 V 120 mA 1O E 2 15 4OE VOUT DC Output Current 1A 3 14 4A PMAX Maximum Power Dissipation TSTG Storage Temperature 1Y 4 13 4Y 5 12 3OE 2A 6 11 3A 2Y 7 10 3Y GND 8 9 W C NOTES: 1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. 2. VCC terminals. 3. All terminals except VCC . SO 1 6-7 2O E 0.5 -65 to +150 NC QSOP TOP VIEW CAPACITANCE (TA = +25C, F = 1MHz, VIN = 0V, VOUT = 0V) Parameter(1) Symbol Typ. Max. CIN Control Inputs 3 5 pF CI/O Quickswitch Channels (Switch OFF) 4 6 pF NOTE: 1. This parameter is guaranteed but not production tested. 1O E 1 14 VC C 1A 2 13 4O E 1Y 3 12 4A 2O E 4 11 4Y 2A 5 10 3O E 2Y 6 9 3A GND 7 8 3Y SO14-1 PIN DESCRIPTION Pin Names I/O Description 1A - 4A I/O Bus A 1Y - 4Y I/O Bus Y 1OE - 4OE I Output Enable FUNCTION TABLE(1) SOIC TOP VIEW OE A Y H H H Function Connect H L L Connect L X X Disconnect NOTE: 1. H = HIGH Voltage Level L = LOW Voltage Level X = Don't Care 2 Unit IDTQS3VH126 3.3V QUAD ACTIVE HIGH SWITCH FOR HOT SWAP APPLICATIONS INDUSTRIAL TEMPERATURE RANGE DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE Following Conditions Apply Unless Otherwise Specified: Industrial: TA = -40C to +85C, VCC = 3.3V 0.3V Symbol Parameter Test Conditions Min. Typ.(1) Max. Unit VIH Input HIGH Voltage Guaranteed Logic HIGH for Control Inputs 2 -- -- V VIL Input LOW Voltage Guaranteed Logic LOW for Control Inputs -- -- 0.8 V IIN Input Leakage Current (Control Inputs) 0V VIN VCC -- -- 1 A IOZ Off-State Current (Hi-Z) 0V VOUT VCC, Switches OFF -- -- 1 A RON Switch ON Resistance VCC = Min, VIN = 0V, ION = 30mA -- 4 6 VCC = Min, VIN = 2.4V, ION = 15mA -- 5 8 NOTE: 1. Typical values are at VCC = 3.3V and TA = 25C. TYPICAL ON RESISTANCE vs VIN AT VCC = 3.3V 16 14 R ON 12 (ohms) 10 8 6 4 2 0 0.0 0.5 1.0 1.5 2.0 2.5 V IN (Volts) 3 3.0 3.5 4.0 4.5 5.0 IDTQS3VH126 3.3V QUAD ACTIVE HIGH SWITCH FOR HOT SWAP APPLICATIONS INDUSTRIAL TEMPERATURE RANGE POWER SUPPLY CHARACTERISTICS Symbol ICCQ ICC ICCD Test Conditions(1) Parameter Quiescent Power Supply Current Power Supply Current (2,3) per Input HIGH Dynamic Power Supply Current per MHz (4) Max. Unit VCC = Max., VIN = GND or VCC, f = 0 3 mA VCC = 3.6V, VIN = 3V, f = 0 per Control Input 30 A 0.25 mA/MHz VCC = 3.6V, A and Y Pins Open, per Control Input Toggling @ 50% Duty Cycle NOTES: 1. For conditions shown as Min. or Max., use the appropriate values specified under DC Electrical Characteristics. 2. Per LVTTL-driven-control-input. A and Y pins do not contribute to Icc. 3. This parameter is guaranteed but not tested. 4. This parameter represents the current required to switch internal capacitance at the specified frequency. The A and Y inputs do not contribute to the Dynamic Power Supply Current. This parameter is guaranteed but not production tested. SWITCHING CHARACTERISTICS OVER OPERATING RANGE TA = -40C to +85C, VCC = 3.3V 0.3V CLOAD = 50pF, RLOAD = 500, unless otherwise noted Symbol Parameter tPLH tPHL tPZL tPZH tPLZ tPHZ Data Propagation Delay(1,2) fOE Operating Frequency - Enable(1,4) A to Y Switch Turn-On Delay OE to xA/xY Switch Turn-Off Delay(1) OE to xA/xY Min. (3) Typ. Max. Unit 0.2 ns 1.5 9 ns 1.5 8 ns 1 MHz NOTES: 1. This parameter is guaranteed but not production tested. 2. The bus switch contributes no propagation delay other than the RC delay of the ON resistance of the switch and the load capacitance. The time constant for the switch alone is of the order of 0.2ns at CL = 50pF. Since this time constant is much smaller than the rise and fall times of typical driving signals, it adds very little propagation delay to the system. Propagation delay of the bus switch, when used in a system, is determined by the driving circuit on the driving side of the switch and its interaction with the load on the driven side. 3. Minimums are guaranteed but not production tested. 4. Maximum toggle frequency for OE control input. 4 IDTQS3VH126 3.3V QUAD ACTIVE HIGH SWITCH FOR HOT SWAP APPLICATIONS INDUSTRIAL TEMPERATURE RANGE SOME APPLICATIONS FOR HOTSWITCH PRODUCTS NFET 0 to +5V Vcc = 3.3V +6.5V CH AR GE PUM P OE 0 to + 5V DR IVER SING LE H O T SW ITC H Rail-to-Rail Switching PH Y 3VH SW ITC H 4.5V P P LOG IC SID E 10M bps to 100M bps Z = 100 Z = 1 00 >100m 4.5V P P TW ISTED PAIR LOG IC SID E 2V PP Fast Ethernet Data Switching (LAN Switch) ZER O DO W N TIM E SYS TEM PLUG G ABLE CAR D/ LIVE SYST EM CARD I/O O N CAR D LOG IC CO N NEC TO R Q S3VHXXX CARD I/O O N CAR D LOG IC CO N NEC TO R Q S3VHXXX CPU RAM PC I/C O M PAC T P CI BU S Hot-Swapping: PCI / Compact PCI 5 IDTQS3VH126 3.3V QUAD ACTIVE HIGH SWITCH FOR HOT SWAP APPLICATIONS INDUSTRIAL TEMPERATURE RANGE ORDERING INFORMATION IDTQS XXXXX XX Device Type Package Q S1 Quarter Size Outline Package (SO16-7) Small Outline IC (SO14-1) 3VH126 3.3V Quad Active High Switch for Hot Swap Applications CORPORATE HEADQUARTERS 2975 Stender Way Santa Clara, CA 95054 for SALES: 800-345-7015 or 408-727-6116 fax: 408-492-8674 www.idt.com 6 for Tech Support: logichelp@idt.com (408) 654-6459