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SI9712DY
Vishay Siliconix
Si9712
PC Card (PCMCIA) Interface Switch--12-V Suspend Capability
FEATURES
* * * * Programmable VCC Ramp Smart Switching 12-V Sleepmode Compatible Extremely Low RON * * * * Reverse Blocking Switches VPP Programmable to 0, 12-V or VCC Safe Power-Up Low Power Consumption * PC Card 3-V/5-V Compatible * Logic Compatible Inputs * Single SO-16 Package
DESCRIPTION
The SI9712DY combines low on-resistance with slow ramp time and smart switching for overall best performance in integrated PC Card interface switches. The SI9712DY operates off the 5-V supply and has built-in level shifting for gate drive. Internal logic protects against an external control input error that would short 5 V to the 3.3-V supply. This protection logic also allows the SI9712DY 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 SI9712DY complies with the release of the PC Card standard by suppling 0 V, 12 V, and VCC to the VPP output and 0 V, 3.3 V, and 5 V to the VCC output. The VCC ramp time is user programmable with an external capacitor connected to the SR pin. The PC Card switch is packaged in a narrow body SO-16 package and is rated over the industrial temperature range -40 to 85C.
FUNCTIONAL BLOCK DIAGRAM
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S-60752--Rev. E, 05-Apr-99 1
SI9712DY
Vishay Siliconix
ABSOLUTE MAXIMUM RATINGS
Voltages Referenced to Ground +12 VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 V +5 VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V +3.3 VIN a . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V S1 through S4 (CMOS Inputs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V IOUT VPPb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300 mA All Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5 V IOUT VCCa . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 A PD Max: (TA = 25C). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5 W (TA = 85C). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.0 W
Junction Temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125C Thermal Rating-RJA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40C/W= Notes a. Pins 10, 11 connected together externally. b. Pins 3, 4 connected together externally. c. Pins 5, 6, 7, 13 connected together externally.
RECOMMENDED OPERATING CONDITIONS
+12 VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0 or 12 V 10% +5 VIN (must be present) . . . . . . . . . . . . . . . . . . . . . . . . . . 5 V 10% +3.3 VIN a . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.3 V 10% CSR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 nF IOUT VPPb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 mA IOUT VCCc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 A VPP Load Capacitance. . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 F Max VCC Load Capacitance . . . . . . . . . . . . . . . . . . . . . . . . . . 150 F Max Notes a. Pins 10, 11 connected together externally. b. Pins 3, 4 connected together externally. c. Pins 5, 6, 7, 13 connected together externally.
SPECIFICATIONS
Test Conditions Unless Otherwise Specified Parameter Switch 1
On-Resistance RON IOFF tSW1(on) tSW1(off) td(on) td(off) tSW1(on) I = 120 mA, +12 VIN = 11.4 V S3 = S1 = High, S2 = S4 = Low +12 VIN = 12.6 V S1= Low S2 = S4 = Low, See Figure 1. S3 = High See Figure 3. S2 = S4 = Low S2 = S4 = Low, S3 = High, See Figure 2. TA = 25C TA = 85C TA = 25C TA = 85C 50 200 1.0 1.0 0.1 50 6 2.9 150 120 145 1 10 350 100 20 10 300 m A s ms s Limits 40 to 85C
Symbol
CSR = 33 nF, +12 VIN = 12 V, +5 VIN = 5 V +3.3 VIN = 3.3 V, Low 0.8 V, High 2.2 V
Mina
Typb
Maxa
Unit
Off Current (+12 VIN) Switching Time
Delay Time Rise Time
Switch 2
On-Resistance RON tSW2(on) tSW2(off) td(on) td(off) tSW2(on) I = 120 mA, S2 = S3 = High S1 = S4 = Low TA = 25C TA = 85C 50 200 1.0 1.0 0.1 50 6 1.7 150 150 180 350 10 20 10 300 m s ms s
Switching Time
S1 = S4 = Low, S3 = High , See Figure 1. S1 = S4 = Low, See Figure 3. S1 = S4 = Low, S3 = High, See Figure 2.
Delay Time Rise Time
S-60752--Rev. E, 05-Apr-99 2
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SI9712DY
Vishay Siliconix
SPECIFICATIONS
Test Conditions Unless Otherwise Specified Parameter Switch 3
On-Resistance RON I = 500mA, S3 = High S1 = S2 =S4 = Low +5 VIN = 5.5 V, VCC = 0 V S1 = S2 = S3 = Low, S4 = High +3.3 VIN = Open Circuit TA = 25C TA = 85C TA = 25C TA = 85C 0.1 3 1.7 30 70 95 1 10 10 50 m Limits 40 to 85C
Symbol
CSR = 33 nF, +12 VIN = 12 V, +5 VIN = 5 V +3.3 VIN = 3.3 V, Low 0.8 V, High 2.2 V
Mina
Typb
Maxa
Unit
Off Current (VCC) Rise Time Fall Time
IOF tSW3(on) tSW3(off)
A
S1 = S2 = S4 = Low, See Figure 2.
ms
Switch 4
On-Resistance RON IOFF tSW4(on) tSW4(off) I = 500mA, S4 = High S1 = S2 =S3 = Low +3.3 VIN = 3.6 V, S1 = S2 = S3 = S4 = Low TA = 25C TA = 85C TA = 25C TA = 85C 0.1 3 0.9 20 50 70 1 10 10 40 m A
Off Current (+3.3 VIN) Rise Time Fall Time
S1 = S2 = S3 = Low, See Figure 2.
ms
Switch 5
On-Resistance RON I = 2 mA, S1 = S2 = Low TA = 25C TA = 85C 235 325 400 550
Switch 6
On-Resistance RON I = 2 mA, S3 = S4 = 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 = S4 = 0 V, S2 = S3= 3 V S1 = S4 = 3 V, S2 = S3 = 0V S1 = S2 = S3 = S4 = 0 V 20 20 <1 50 50 10 A
Switch Control Inputs
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 through S4 = 5 V S1 through S4 = 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.
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S-60752--Rev. E, 05-Apr-99 3
SI9712DY
Vishay Siliconix
TIMING WAVEFORMS
FIGURE 1. VPP Switch Delay
FIGURE 2. Switch Ramp
FIGURE 3. Delay from S1 or S2 to VPP Power-up
PIN CONFIGURATION PIN DESCRIPTION
Pin Number
1 2 3, 4 5, 6, 7, 13 8 9 10, 11 12 Note: a. Pins 5, 6, 7, and 13 must be connected in the PCB for correct operation. 14 15 16
Function
GND S4 VPP VCC S1 S2 +3.3 VIN +5 VIN +12 VIN S3 SR Ground connection.
Description
Control input for selecting +3.3 VIN to VCC. The PC Card terminology for this pin is VCC_EN0. Program and peripheral voltage to PC Card slot. Supply voltage to slot. Control input for selecting +12 VIN to VPP. The PC Card terminology for this pin is VPP_EN1. Control input for selecting VCC to VPP . The PC Card terminology for this pin is VPP_EN0. +3.3-V supply. +5-V supply. +12-V supply. Control input for selecting +5 VIN to VCC. The PC Card terminology for this pin is VCC_EN1. Slew rate control pin, capacitor to GND defines programmable ramp time.
S-60752--Rev. E, 05-Apr-99 4
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SI9712DY
Vishay Siliconix
TRUTH TABLEb
S1
0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 Notes a. Turn on of switch 1 and 2 are internally delayed until after VCC is valid. See Figure 3. . b. Shaded lines are error conditions for PC Card applications, however, switches default to the states shown.
S2
0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1
S3
0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1
S4
0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
Switch 1
Off Off Off Off Off Off Off Off Off On On Off Off On On Off
Switch 2
Off Off Off Off Off On On Off Off Off Off Off Off Off Off Off
Switch 3
Off Off On Off Off Off On Off Off Off On Off Off Off On Off
Switch 4
Off On Off Off Off On Off Off Off On Off Off Off On Off Off
Switch 5
On On On On On Off Off On On Off Off On On Off Off On
Switch 6
On Off Off On On Off Off On On Off Off On On Off Off On
FIGURE 4. Break-Before-Make of SW1 and SW2
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S-60752--Rev. E, 05-Apr-99 5
SI9712DY
Vishay Siliconix
TYPICAL CHARACTERISTICS (25C UNLESS OTHERWISE NOTED)
S-60752--Rev. E, 05-Apr-99 6
FaxBack 408-970-5600, request 70024 www.siliconix.com
SI9712DY
Vishay Siliconix
TYPICAL CHARACTERISTICS (25C UNLESS OTHERWISE NOTED)
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S-60752--Rev. E, 05-Apr-99 7

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