LTC1472CS Linear Technology, LTC1472CS Datasheet - Page 7

• Manufacturer Part Number: LTC1472CS
• Description: IC SWITCHNG MATRIX PCMCIA 16SOIC
• Manufacturer: Linear Technology
• Type: PCMCIA/Cardbus Switchr

Specifications of LTC1472CS

• Number Of Outputs: 1
• Rds (on): 180 mOhm
• Internal Switch(s): Yes
• Current Limit: 1A
• Voltage - Input: 3.3V, 5V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

BLOCK
OPERATION
The LTC1472 protected switch matrix is designed to be a
complete single slot solution for V
a PCMCIA compatible card system. The LTC1472 consists
of two independent functional sections: the V
section, and the VPP switching section.
THE V
The V
following functional blocks:
CC
CC
V
V
CC
CC
VPP EN0
switching section of the LTC1472 consist of the
VPP EN1
EN0
SWITCHING SECTION
EN1
SHDN
V
DD
DIAGRAM
TTL-TO-CMOS
TTL-TO-CMOS
CONVERTER
CONVERTER
U
10V
TTL-TO-CMOS
TTL-TO-CMOS
CONVERTER
CONVERTER
VPP
IN
W
+
–
CC
and VPP switching in
BREAK-BEFORE-
MAKE SWITCH
BREAK-BEFORE-
MAKE SWITCH
AND CONTROL
CC
switching
OSCILLATOR
CONTROL LOGIC
CONTROL LOGIC
AND BIAS
GATE CHARGE
GATE CHARGE
OSCILLATOR
DISCHARGE
DISCHARGE
V
The LTC1472 V
wide range of 3V and 5V logic families. The input threshold
voltage is approximately 1.4V with approximately 100mV
of hysteresis. The inputs enable the bias generator, the
gate charge pumps and the protection circuity which are
powered from the 5V
are turned off, the entire circuit is powered down and the
5V
AND BIAS
CC
AND
AND
IN
Switch Input TTL-CMOS Converters
supply current drops below 1µA.
CONTROL LOGIC
CONTROL LOGIC
GATE CHARGE
GATE CHARGE
DISCHARGE
DISCHARGE
CHARGE
PUMP
AND
AND
CC
CHARGE
CHARGE
PUMP
PUMP
CURRENT LIMIT
AND THERMAL
inputs are designed to accommodate a
SHUTDOWN
IN
supply. Therefore, when the inputs
CURRENT LIMIT
AND THERMAL
SHUTDOWN
1.7Ω
100Ω
0.5Ω
LTC1472
0.14Ω
0.12Ω
VPP
VCC
VPP
5V
V
3V
LTC1470-BD01
CC(OUT)
IN
(IN)
OUT
IN
IN
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