LTC1472 Linear Technology, LTC1472 Datasheet - Page 3

• Manufacturer Part Number: LTC1472
• Description: Protected PCMCIA VCC and VPP Switching Matrix
• Manufacturer: Linear Technology

V
SYMBOL
V
VPP
V
I
I
I
I
R
VPP
VPP
I
V
V
I
I
t
t
t
t
t
t
t
t
The
temperature range.
Note 1: V
programming enable inputs for desired output states.
Note 2: Power for the V
from the 5V
and 3.3V power is not required to control the NMOS V
Applications Information.)
Note 3: The two 3V
together and the two V
together. The 3V
and may drop to 0V when not required.
Note 4: The V
which reduces the short-circuit (0V) currents below peak permissible
current levels at higher output voltages.
ELECTRICAL CHARACTERISTICS
CCIN
PPIN
DD
VPPOUT
VPPEN
LIMVCC
LIMVPP
VPP1
VPP2
VPP3
VPP4
VPP5
VPP6
VPP7
VPP8
CC(IN)
DD
SDH
SDL
DD
ON
IN
ENH
ENL
= 5V, V
denotes the specifications which apply over the full operating
ENH
IN
CC(IN)
= 5V, V
CC
power supply which must be continuously powered. 12V
PARAMETER
V
VPP Input Voltage Range
Logic Supply Voltage Range
V
VPP
V
Hi-Z Output Leakage Current
On Resistance VPP
On Resistance VPP
On Resistance VPP
VPP Enable Input High Voltage
VPP Enable Input Low Voltage
VPP Enable Input Current
SHDN Output High Voltage
SHDN Output Low Voltage
VPP
VPP
Delay and Rise Time
Delay and Rise Time
Delay and Rise Time
Delay and Fall Time
Delay and Fall Time
Delay and Fall Time
Output Turn-On Delay
Output Turn-On Delay
IN
and VPP output are protected with foldback current limit
CC
CC(IN)
DD
supply pins do not need to be continuously powered
IN
= 5V, VPP
Input Voltage Range
IN
OUT
OUT
Supply Current, No Load
ENL
supply input pins (14 and 15) must be connected
Supply Current, No Load
CC(OUT)
Supply Current, No Load
CC
Current Limit, V
Current Limit, VPP
= 0V. See V
input logic and charge pump circuitry is derived
output pins (1 and 16) must be connected
IN
= 12V, V
OUT
OUT
OUT
CC
and VPP Switch Truth Tables for
to VPP
to V
to GND
CC(IN)
IN
CC(IN)
CCEN0
IN
= V
CC
CCEN1
CONDITIONS
(Note 6)
(Note 7)
Program to VPP
Program to 0V or Hi-Z
Program to VPP
Program to 0V or Hi-Z
Program to VPP
Program to V
Program to V
Program to 0V or Hi-Z
Program to Hi-Z, 0V < VPP
VPP
V
V
V
V
0V < VPP EN < VDD
Program to 0V, V
Program to VPP
Program to V
Program to VPP
From 0V to V
From 0V to VPP
From V
From VPP
From VPP
From V
From Hi-Z to V
From Hi-Z to VPP
CC(IN)
DD
DD
DD
switches. (See
IN
= 5V, I
= 5V
= 5V
= 0V, T
= 12V, I
CC(IN)
CC(IN)
= 5V, I
IN
IN
SINK
(VPP Switch Section)
to V
to 0V (Note 10)
CC(IN)
to VPP
to 0V, VPP
CC(IN)
CC(IN)
CC(IN)
LOAD
A
LOAD
CC(IN)
= 25 C, (Note 1), unless otherwise noted.
= 1mA
IN
IN
IN
IN
IN
CC(IN)
IN
CC(IN)
IN
, I
, VPP
or V
(Note 8)
, VPP
, VPP
,VPP
, VPP
or V
= 5mA
= 120mA
SINK
(Note 8)
IN
(Note 8)
(Note 8)
(Note 9)
CC(IN)
or Hi-Z, I
CC(IN)
OUT
IN
IN
IN
IN
OUT
= 400 A
Note 5: To 90% of final value.
Note 6: 12V power is only required when VPP
The external 12V regulator can be shutdown at all other times. Built-in
charge pumps power the internal NMOS switches from the 5V V
when 12V is not present.
Note 7: Power for the VPP input logic and charge pump circuitry is derived
from the V
Note 8: To 90% of the final value, C
Note 9: To 10% of the final value, C
Note 10: To 50% of the initial value, C
= 0V (Note 8)
= 0V (Note 10)
= 0V
= 12V
OUT
= 0V (Note 4)
= 0V (Note 4)
VPP
< 12V
LOAD
IN
DD
= 12V
= 400 A
power supply which must be continuously powered.
OUT
OUT
OUT
= 0.1 F, R
= 0.1 F, R
MIN
4.5
3.5
= 0.1 F, R
25
30
10
10
25
3
0
2
5
5
5
OUT
is programmed to 12V.
OUT
OUT
0.01
0.01
0.01
0.01
0.50
1.70
TYP
100
100
100
35
40
70
85
40
60
15
85
15
35
30
15
85
OUT
= 2.9k.
= 2.9k.
LTC1472
= 2.9k.
MAX
12.6
120
150
250
250
300
100
100
250
5.5
5.5
0.8
0.4
60
10
80
10
80
10
10
50
50
50
1
5
1
DD
supply
UNITS
3
mA
mA
V
V
V
A
A
A
A
A
A
A
A
A
V
V
A
V
V
s
s
s
s
s
s
s
s