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| SI9706DY Vishay Siliconix PC Card (PCMCIA) Interface Switch FEATURES D Single SO-8 Package D CMOS-Logic Compatible Inputs D Slow VCC Ramp Time D Smart Switching D Extremely Low RON D Reverse Blocking Switches D Low Power Consumption D Safe Power Up DESCRIPTION The SI9706DY offers an integrated solution for PC Card power interfaces that only require VCC switching. This part is ideal for systems that operate at 5 V and provide VPP from the main supply or from a dedicated Flash RAM 12-V supply. The SI9706DY operates off the 5-V supply and has built-in level shifting for gate drive. Internal logic protects against a control logic error that would short 5 V to the 3.3-V supply. This protection logic also allows the SI9706DY to be configured for positive or negative control logic for compatibility with a variety of PC Card controllers. These control inputs are CMOS logic compatible and can be driven to 3.3 V or 5 V. The SI9706DY PC Card interface switch is packaged in a narrow body SO-8 package and is rated over the industrial temperature range -40 to 85_C. The SI9706DY is available in lead free. FUNCTIONAL BLOCK DIAGRAM +5 VIN +3.3 VIN (7) (6) SW1 SW2 (2) (3) SW3 VCC VCC S1 S2 SR (5) (4) (8) Level Shift and Drivers (1) GND Document Number: 70010 S-40127--Rev. G, 16-Feb-04 www.vishay.com 1 SI9706DY Vishay Siliconix ABSOLUTE MAXIMUM RATINGS Voltages Referenced to Ground +5 VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V +3.3 VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V S1 , S2 (CMOS Inputs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V All Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5 V IOUT VCCa ....................................................4A PD Maxb: . (TA = 25_C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.59 W (TA = 85_C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.63 W Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125_C Thermal Ratingsb: RQJA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 _C/W Notes a. Pins 2, 3 connected together externally. b. Mounted on 1-IN2, FR4 PC Board. RECOMMENDED OPERATING CONDITIONS +5 VIN (must be present) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 V "10% +3.3 VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.3 V "10% CSR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 nF IOUT VCCa . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 A VCC Load Capacitance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 mF Max Notes a. Pins 2, 3 connected together externally. SPECIFICATIONS Test Conditions Unless Otherwise Specified Parameter Switch SW1 On-Resistance On Resistance Off Current (VCC) Rise Time Fall Time RON IOFF tS1(on) tS1(off) I = 500 mA, S1 = High S2 = Low +5 VIN = 5.5 V, VCC = 0 V S1= S2 = Low S2 = Low, See Figure 1 Low TA = 25_C TA = 85_C TA = 25_C TA = 85_C 0.2 10 1.7 30 58 73 70 90 1 10 5 50 mW mA ms Limits Mina Typb Maxa Unit Symbol CSR = 33 nF, +5 VIN = 5 V +3.3 VIN = 3.3 V, Low v 0.8 V, High w 2.2 V Switch SW2 On-Resistance On Resistance Off Current (+3 3 VIN) (+3.3 Rise Time Fall Time RON IOFF tS2(on) tS2(off) I = 500 mA, S2 = High S1 = Low +3.3 VIN = 3.6 V, VCC = 0 V S1 = S2 = Low S1 = Low, See Figure 1 Low TA = 25_C TA = 85_C TA = 25_C TA = 85_C 0.1 5 0.9 20 44 55 55 70 1 10 5 40 mW mA ms Switch SW3 On-Resistance On Resistance RON I = 2 mA, S1 = S2 = Low mA TA = 25_C TA = 85_C 140 200 400 500 W Power Supply +5 VIN Current Input (on) +5 VIN Current Input (off) Input Voltage High Input Voltage Low Input Current High Input Current Low I+5VIN(1) I+5VIN(2) I+5VIN(3) VI(H) VI(L) II(H) II(L) S1 = 0 V, S2 = 3 V S1 = 3 V, S2 = 0V S1 = S2 = 0 V +5 VIN = 5.5 V +5 VIN = 4.5 V +5 VIN = 5.5 V +5 VIN = 4.5 V S1 , S2 = 5 V S1 , S2 = GND -1.0 2.2 2.2 20 20 t1 1.8 1.6 1.6 1.4 0.8 0.8 1.0 mA V 50 50 10 m mA Notes a. The algebraic convention whereby the most negative value is a minimum and the most positive a maximum. b. Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing. www.vishay.com Document Number: 70010 S-40127--Rev. G, 16-Feb-04 2 SI9706DY Vishay Siliconix TIMING WAVEFORMS 3V SX GND VCC GND 10% tSX(on) 90% 90% 10% tSX(off) TRUTH TABLE S1 0 0 1 1 S2 0 1 0 1 Switch 1 Off Off On Off Switch 2 Off On Off Off Switch 3 On Off Off On Notes a. The smart switching of the SI9706DY avoids potential host damage by defaulting to off during error conditions. FIGURE 1. Switch Ramp PIN CONFIGURATION AND DESCRIPTION SO-8 GND VCC VCC S2 1 2 3 4 Top View 8 7 6 5 SR +5 VIN +3.3 VIN S1 Pin 1 2, 3 4 5 6 7 8 Function GND VCC S2 S1 +3.3 VIN +5 VIN SR Description Ground connection. Supply voltage to slot. Control input for selecting +3.3 VIN to VCC. Control input for selecting +5 VIN to VCC. +3.3-V supply. +5-V supply. Slew rate control pin. ORDERING INFORMATION Part Number SI9706DY-T1 SI9706DY-T1--E3 (Lead Free) Temperature Range -40 to 85_C 40 TYPICAL CHARACTERISTICS (25_C UNLESS OTHERWISE NOTED) On-Resistance vs. Load Current 0.10 0.10 ID = 1 A TJ = TA R ON - On-Resistance ( W ) R ON - On-Resistance ( W ) 0.08 Switch 1 0.06 Switch 2 0.08 Switch 1 0.06 Switch 2 0.04 On-Resistance vs. Junction Temperature 0.04 0.02 0.02 0.00 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 0.00 -40 -20 0 20 40 60 80 100 120 ID - Load Current (A) Document Number: 70010 S-40127--Rev. G, 16-Feb-04 TJ - Junction Temperature (_C) www.vishay.com 3 SI9706DY Vishay Siliconix TYPICAL CHARACTERISTICS (25_C UNLESS OTHERWISE NOTED) Rise Time vs. SR Capacitor Value Cload = 0 pF Fall Time vs. SR Capacitor Value Cload = 0 pF t SX(on) - Rise Time (ms) 100 1 Switch 2 0.1 t SX(off) - Fall Time (ms) Switch 1 Switch 1 10 Switch 2 0.01 Open 0.001 0.1 1 10 100 1000 CSR - Capacitor Value (nF) 1 0.1 0.1 Open 1 10 100 1000 CSR - Capacitor Value (nF) 3.0 2.5 t SX(on) - Rise Time (ms) 2.0 1.5 Rise Time vs. Load Capacitance CSR = 33 nF 100 Fall Time vs. Load Capacitance CSR = 33 nF 80 t SX(off) - Fall Time (ms) Switch 1 60 Switch 1 40 Switch 2 20 Switch 2 1.0 0.5 0.0 0 40 80 120 160 0 0 40 80 120 160 Cload - Load Capacitance (mF) 1 Cload - Load Capacitance (mF) 10000 Rise Time Delay, trd vs. CSR Fall Time Delay, tfd vs. CSR Switch 2 Rise Time (ms) Switch 1 0.1 Rise Time (ms) 1000 Switch 2 Switch 1 100 10 0.01 0.01 0.1 CSR - Capacitor Value (mF) www.vishay.com 1 1 0.01 0.1 CSR - Capacitor Value (mF) Document Number: 70010 S-40127--Rev. G, 16-Feb-04 1 4 |
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