Si9707DY Vishay Siliconix Si9707 PC Card (PCMCIA) Dual Interface Switch FEATURES • Single SO-16 Package • CMOS Logic Compatible Inputs • Smart Switching • Slow VCC Ramp Times • Extremely Low RON • Supports Dual PC Card Slots DESCRIPTION • Reverse Blocking Switches • Low Power Consumption • Safe Power-Up The Si9707DY offers an integrated solution for dual PC Card power interfaces that require only 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. short 5 V to the 3.3-V supply. This protection logic also allows the Si9707DY 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 Si9707DY operates off the 5-V supply with built-in level shifting. The VCC outputs function independently and internal logic protects each slot against a control logic error that would The PC Card Dual Interface Switch is available in a SO-16 narrow-body package and is rated over the industrial temperature range of -40 to 85°C. FUNCTIONAL BLOCK DIAGRAM FaxBack 408-970-5600, request 70018 www.siliconix.com S-60752—Rev. E, 05-Apr-99 1 Si9707DY Vishay Siliconix ABSOLUTE MAXIMUM RATINGS Voltages Referenced to Ground Junction Temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125°C +5 VINA, +5 VINB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V Thermal Ratings: RΘJAc . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60°C/W +3.3 VINA, +3.3 VINB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V Notes S1A and S2A, S1B, S2B (CMOS Inputs) . . . . . . . . . . . . . . . . . . . . . . 7 V a. Pins 5, 6 connected together externally. All Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5 V b. Pins 3, 4 connected together externally. IOUT VCCAa, IOUT VCCBb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 A c. Mounted on 1-IN2, FR4 PC Board. c PD Max : (TA = 25°C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.65 W (TA = 85°C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.65 W RECOMMENDED OPERATING CONDITIONS +5 VINA, +5 VINB (must be present) . . . . . . . . . . . . . . . . . . .5 V ±10% VCC Load Capacitance . . . . . . . . . . . . . . . . . . . . . . . . . . 150 µF Max +3.3 VINA, +3.3 VINB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.3 V ±10% Notes CSRA, CSRB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 nF a. Pins 5, 6 connected together externally. IOUT VCCAa, IOUT VCCBb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 A b. Pins 3, 4 connected together externally. SPECIFICATIONS Limits -40 to 85°C 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 Mina Typ Maxa TA = 25°C 58 70 TA = 85°C 73 90 Unit Switch SW1A, SW1B On-Resistance Off Current (VCC) RON I = 500 mA, S1 = High S2 = Low IOFF +5 VIN = 5.5 V, VCC = 0 V S1= S2 = Low Rise Time tS1(on) Fall Time tS1(off) mΩ TA = 25°C 1 TA = 85°C 10 0.2 1.7 5 10 30 50 TA = 25°C 44 55 TA = 85°C 55 70 S2 = Low, See Figure 1. µA ms Switch SW2A, SW2B On-Resistance Off Current (+3.3 VIN) RON I = 500 mA, S2 = High S1 = Low IOFF +3.3 VIN = 3.6 V, VCC = 0 V S1 = S2= Low Rise Time tS2(on) Fall Time tS2(off) mΩ TA = 25°C 1 TA = 85°C 10 µA 0.1 0.9 5 5 20 40 TA = 25°C 140 400 TA = 85°C 200 500 S1 = Low, See Figure 1. ms Switch SW3A, SW3B On-Resistance RON I = 2 mA, S1 = S2 = Low Ω Power Supply +5 VIN Current Input (on) +5 VIN Current Input (off) I+5VIN(1) S1 = 0 V, S2 = 3 V 20 50 I+5VIN(2) S1 = 3 V, S2 = 0V 20 50 I+5VIN(3) S1 = S2 = 0 V <1 10 µA Switch Control Inputs S1X, S2X Input Voltage High Input Voltage Low VI(H) VI(L) +5 VINX = 5.5 V 2.2 1.8 +5 VINX = 4.5 V 2.2 1.6 V +5 VINX = 5.5 V 1.6 0.8 +5 VINX = 4.5 V 1.4 0.8 Input Current High II(H) S1X , S2X = 5 V Input Current Low II(L) S1X , S2X = GND 1.0 µA -1.0 Notes a. The algebraic convention whereby the most negative value is a minimum and the most positive a maximum. S-60752—Rev. E, 05-Apr-99 2 FaxBack 408-970-5600, request 70018 www.siliconix.com Si9707DY Vishay Siliconix TIMING WAVEFORMS FIGURE 1. Switch Ramp Time PIN CONFIGURATION AND DESCRIPTION PIN DESCRIPTION Function Pin Number S1A 10 Control input for selecting +5 VINA to VCCA. S1B 15 Control input for selecting +5 VINB to VCCB. S2A 7 Control input for selecting +3.3 VINA to VCCA. S2B 2 Control input for selecting +3.3 VINB to VCCB. GND 1, 8 Ground connection. VCCA 5, 6 Supply voltage to slot. VCCB 3, 4 Supply voltage to slot. +3.3 VINA 11 +3.3-V supply. +3.3 VINB 14 +3.3-V supply. +5 VINA 12 +5-V supply. +5 VINB 13 +5-V supply. SRA 9 Slew rate control pin. SRB 16 Slew rate control pin. Description TRUTH TABLE S1X S2X Switch 1X Switch 2X Switch 3X 0 0 Off Off On 0 1 Off On Off 1 0 On Off Off 1 1 Off Off On Notes a. The smart switching of the Si9707 avoids potential host damage by defaulting to off during error conditions. FaxBack 408-970-5600, request 70018 www.siliconix.com S-60752—Rev. E, 05-Apr-99 3 Si9707DY Vishay Siliconix TYPICAL CHARACTERISTICS (25°C UNLESS OTHERWISE NOTED) S-60752—Rev. E, 05-Apr-99 4 FaxBack 408-970-5600, request 70018 www.siliconix.com