Si9712
Vishay Siliconix
PC Card (PCMCIA) Interface Switch—12-V Suspend Capability
FEATURES
D
D
D
D
Programmable VCC Ramp
Smart Switching
12-V Sleepmode Compatible
Extremely Low RON
D
D
D
D
Reverse Blocking Switches
VPP Programmable to 0, 12-V or VCC
Safe Power-Up
Low Power Consumption
D PC Card 3-V/5-V Compatible
D Logic Compatible Inputs
D Single SO-16 Package
DESCRIPTION
The Si9712 combines low on-resistance with slow ramp time
and smart switching for overall best performance in integrated
PC Card interface switches.
The Si9712 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 Si9712 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 Si9712 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 85_C.
The Si9712 is available in both standard and lead (Pb)-free
packages.
FUNCTIONAL BLOCK DIAGRAM
+12 VIN
(14)
SW1
(3)
SW2
(4)
VPP
VPP
SW5
+5 VIN
+3.3 VIN
+3.3 VIN
SR
S1
S2
Document Number: 70024
S-40755—Rev. F, 19-Apr-04
(12)
(10)
(13)
SW3
(5)
(6)
SW4
(7)
VCC
VCC
VCC
Externally
Connect
On PCB
VCC
(11)
SW6
(16)
(8)
(9)
(2)
Switch Logic, Level Shift, and Drivers
(15)
(1)
S4
S3
GND
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1
Si9712
Vishay Siliconix
ABSOLUTE MAXIMUM RATINGS
Voltages Referenced to Ground
+12 VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 V
(TA = 25_C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5 W
(TA = 85_C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.0 W
+5 VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125_C
+3.3 VIN c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
Thermal Rating—RQJA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 _C/W
PD Max:
S1 through S4 (CMOS Inputs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
IOUT VPPa . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300 mA
All Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V
IOUT VCCb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 A
Notes
a. Pins 3, 4 connected together externally.
b. Pins 5, 6, 7, 13 connected together externally.
c. Pins 10, 11 connected together externally.
RECOMMENDED OPERATING CONDITIONS
+12 VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 or 12 V "10%
VPP Load Capacitance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 mF Max
+5 VIN (must be present) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 V "10%
VCC Load Capacitance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 mF Max
+3.3 VIN c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.3 V "10%
CSR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 nF
IOUT VPPa . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 mA
IOUT VCCb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 A
Notes
a. Pins 3, 4 connected together externally.
b. Pins 5, 6, 7, 13 connected together externally.
c. Pins 10, 11 connected together externally.
SPECIFICATIONS
Test Conditions
Unless Otherwise Specified
Parameter
Symbol
CSR = 33 nF, +12 VIN = 12 V, +5 VIN = 5 V
+3.3 VIN = 3.3 V, Low v 0.8 V, High w 2.2 V
Limits
−40 to 85_C
Mina
Typb
Maxa
Unit
Switch 1
On Resistance
On-Resistance
RON
I = 120 mA, +12 VIN = 11.4 V
S3 = S1 = High
S2 = S4 = Low
TA = 25_C
120
TA = 85_C
145
Off Current (+12 VIN)
IOFF
+12 VIN = 12.6 V
S1= Low
TA = 25_C
1
TA = 85_C
10
Switching Time
Delay Time
Rise Time
tSW1(on)
S2 = S4 = Low, See Figure 1
S3 = High
50
td(off)
See Figure 3
S2 = S4 = Low
tSW1(on)
S2 = S4 = Low, S3 = High, See Figure 2
tSW1(off)
td(on)
200
350
1.0
10
1.0
6
20
0.1
2.9
10
50
150
300
mW
mA
ms
ms
ms
Switch 2
On Resistance
On-Resistance
Switching Time
Delay Time
Rise Time
RON
tSW2(on)
tSW2(off)
td(on)
td(off)
tSW2(on)
I = 120 mA, S2 = S3 = High
S1 = S4 = Low
TA = 25_C
150
TA = 85_C
180
S1 = S4 = Low,
Low S3 = High , See Figure 1
S1 = S4 = Low
Low, See Figure 3
S1 = S4 = Low, S3 = High, See Figure 2
50
200
350
1.0
10
1.0
6
20
0.1
1.7
10
50
150
300
mW
ms
ms
ms
Switch 3
On Resistance
On-Resistance
RON
I = 500 mA, S3 = High
S1 = S2 = S4 = Low
TA = 25_C
70
TA = 85_C
95
1
IOFF
+5 VIN = 5.5 V, VCC = 0 V
S1 = S2 = S3 = Low
S4 = High
+3.3 VIN = Open Circuit
TA = 25_C
Off Current (VCC)
TA = 85_C
10
Rise Time
tSW3(on)
Fall Time
tSW3(off)
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2
S1 = S2 = S4 = Low,
Low See Figure 2
0.1
1.7
10
3
30
50
mW
mA
ms
Document Number: 70024
S-40755—Rev. F, 19-Apr-04
Si9712
Vishay Siliconix
SPECIFICATIONS
Test Conditions
Unless Otherwise Specified
Parameter
Symbol
CSR = 33 nF, +12 VIN = 12 V, +5 VIN = 5 V
+3.3 VIN = 3.3 V, Low v 0.8 V, High w 2.2 V
Limits
−40 to 85_C
Mina
Typb
Maxa
Unit
Switch 4
On Resistance
On-Resistance
RON
I = 500 mA, S4 = High
S1 = S2 = S3 = Low
TA = 25_C
50
TA = 85_C
70
Off Current (+3.3
(+3 3 VIN)
IOFF
+3.3 VIN = 3.6 V,
S1 = S2 = S3 = S4 = Low
TA = 25_C
1
TA = 85_C
10
Rise Time
tSW4(on)
Fall Time
tSW4(off)
0.1
0.9
10
3
20
40
TA = 25_C
235
400
TA = 85_C
325
550
TA = 25_C
140
400
TA = 85_C
200
500
S1 = S2 = S3 = Low,
Low See Figure 2
mW
mA
ms
Switch 5
On Resistance
On-Resistance
RON
I = 2 mA,
mA S1 = S2 = Low
RON
I = 2 mA,
mA S3= S4 = Low
W
Switch 6
On Resistance
On-Resistance
W
Power Supply
+5 VIN Current Input (on)
+5 VIN Current Input (off)
I+5VIN(1)
S1 = S4 = 0 V, S2 = S3= 3 V
20
50
I+5VIN(2)
S1 = S4 = 3 V, S2 = S3 = 0V
20
50
I+5VIN(3)
S1 = S2 = S3 = S4 = 0 V
