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| SI9706DY Vishay Siliconix PC Card Si9706 PC Card (PCMCIA) Interface Switch FEATURES * Single SO-8 Package * CMOS-Logic Compatible Inputs * Slow VCC Ramp Time * Smart Switching * Extremely Low RON * Reverse Blocking Switches * Low Power Consumption * 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 85C. FUNCTIONAL BLOCK DIAGRAM FaxBack 408-970-5600, request 70010 www.siliconix.com S-60752--Rev. F, 05-Apr-99 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 A PD Maxb (TA = 25C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.59 W (TA = 85C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.63 W Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125C Thermal Ratingsb: RJA . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 F Max Notes a. Pins 2, 3 connected together externally. SPECIFICATIONS Test Conditions Unless Otherwise Specified Parameter Switch SW1 On-Resistance 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. TA = 25C TA = 85C TA = 25C TA = 85C 0.2 10 1.7 30 58 73 70 90 1 10 5 50 m A Limits -40 to 85C Symbol CSR = 33 nF, +5 VIN = 5 V +3.3 VIN = 3.3 V, Low 0.8 V, High 2.2 V Mina Typb Maxa unit Off Currnet (VCC) Rise Time Fall Time ms Switch SW2 On-Resistance 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. TA = 25C TA = 85C TA = 25C TA = 85C 0.1 5 0.9 20 44 55 55 70 1 10 5 40 m A Off Current (+3.3 VIN) Rise Time Fall Time ms Switch SW3 On-Resistance RON I = 2 mA, S1 = S2 = Low TA = 25C TA = 85C 140 200 400 500 Power Supply +5 VIN Current Input (on) +5 VIN Current Input (off) I+5VIN(1) I+5VIN(2) I+5VIN(3) S1 = 0 V, S2 = 3 V S1 = 3 V, S2 = 0V S1 = S2 = 0 V 20 20 <1 50 50 10 A S-60752--Rev. F, 05-Apr-99 2 FaxBack 408-970-5600, request 70010 www.siliconix.com SI9706DY Vishay Siliconix SPECIFICATIONS Test Conditions Unless Otherwise Specified Parameter Symbol CSR = 33 nF, +5 VIN = 5 V +3.3 VIN = 3.3 V, Low 0.8 V, High 2.2 V Limits -40 to 85C Mina Typb Maxa unit Switch Control Inputs S1, S2 Input Voltage High VI(H) VI(L) II(H) II(L) +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 1.8 1.6 1.6 1.4 0.8 0.8 1.0 A V Input Voltage Low Input Current High Input Current Low 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. TIMING WAVEFORMS TRUTH TABLE S1 0 0 1 1 Notes a. The smart switching of the SI9706DY avoids potential host damage by defaulting to off during error conditions. S2 0 1 0 1 Switch 1 Off Off On Off Switch 2 Off On Off Off Switch 3 On Off Off On FIGURE 1. Switch Ramp PIN CONFIGURATION AND DESCRIPTION PIN DESCRIPTION Function S1 S2 GND VCC +3.3 VIN +5 VIN SR Pin Number 5 4 1 2, 3 6 7 8 Description Control input for selecting +5 VIN to VCC. Control input for selecting +3.3 VIN to VCC. Ground connection. Supply voltage to slot. +3.3-V supply. +5-V supply. Slew rate control pin. FaxBack 408-970-5600, request 70010 www.siliconix.com S-60752--Rev. F, 05-Apr-99 3 SI9706DY Vishay Siliconix TYPICAL CHARACTERISTICS (25C UNLESS OTHERWISE NOTED) S-60752--Rev. F, 05-Apr-99 4 FaxBack 408-970-5600, request 70010 www.siliconix.com SI9706DY Vishay Siliconix TYPICAL CHARACTERISTICS (25C UNLESS OTHERWISE NOTED) FaxBack 408-970-5600, request 70010 www.siliconix.com S-60752--Rev. F, 05-Apr-99 5 |
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