LTC1470CS8#TR Linear Technology, LTC1470CS8#TR Datasheet

IC MATRIX SW SINGLE 5/3.3V 8SOIC

LTC1470CS8#TR

Manufacturer Part Number
LTC1470CS8#TR
Description
IC MATRIX SW SINGLE 5/3.3V 8SOIC
Manufacturer
Linear Technology
Type
PCMCIA/Cardbus Switchr
Datasheet

Specifications of LTC1470CS8#TR

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
8-SOIC (3.9mm Width)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

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FEATURES
APPLICATIO S
TYPICAL APPLICATIO
Single 3.3V/5V Switch in 8-Pin SO Package
Dual 3.3V/5V Switch in 16-Pin SO Package
Built-In Current Limit and Thermal Shutdown
Built-In Charge Pumps (No 12V Required)
Extremely Low R
Output Current Capability: 1A
Inrush Current Limited (Drives 150µF Loads)
Quiescent Current in Standby: 1µA
No Parasitic Body Diodes
Built-In XOR Function Eliminates “Glue” Logic
Break-Before-Make Switching
Controlled Rise and Fall Times
Available in 8-Pin and 16-Pin SO Packages
Set Top Box/Open Cable
Notebook Computers
Palmtop Computers
Pen-Based Computers
Handi-Terminals
3.3V/5V Power Supply Switch
CONTROLLER
CARD SLOT
PCMCIA
0.1µF
5V
Dual Slot PCMCIA 3.3V/5V V
AEN1
AEN0
BEN1
BEN0
5V
LTC1471
IN
U
DS(ON)
GND
AOUT
BOUT
3V
IN
MOSFET Switches
+
+
(Hi-Z/3.3V/5V)
(Hi-Z/3.3V/5V)
1µF
1µF
0.1µF
U
3.3V
CC
10k
10k
Switch
V
V
V
V
CC
CC
CC
CC
CARD SLOT
CARD SLOT
PCMCIA
PCMCIA
1470/71 TA01
DESCRIPTIO
The LTC
puter Memory Card International Association (PCMCIA)
card slot between three operating states: OFF, 3.3V and
5V. Two low R
driven by a built-in charge pump which generates a
voltage higher than the supply voltage to fully enhance
each switch when selected by the input control logic.
The LTC1470 inputs are compatible with industry stan-
dard PCMCIA controllers. A built-in XOR ensures that both
switches are never on at the same time. This function also
makes the LTC1470 compatible with both active-low and
active-high controllers (see Applications Information sec-
tion). The switch rise times are controlled to eliminate
power supply glitching.
The LTC1470 features built-in SafeSlot
thermal shutdown. The output is limited to 1A during short
circuit to ground but 2A of peak operating current is
allowed.
The LTC1471 is a dual version of the LTC1470 and is
available in a 16-pin SO package.
DEVICE
LT
LT1313
LTC1314
LTC1315
LTC1470
LTC1471
LTC1472
*Narrow Body
SafeSlot is a trademark of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
®
, LTC and LT are registered trademarks of Linear Technology Corporation.
1312
®
DESCRIPTION
Single PCMCIA VPP Driver/Regulator
Dual PCMCIA VPP Driver/Regulator
Single PCMCIA Switch Matrix
Dual PCMCIA Switch Matrix
Single Protected V
Dual Protected V
Protected V
1470 switches the V
Linear Technology PCMCIA Product Family
3.3V/5V V
DS(ON)
CC
PCMCIA Protected
U
and VPP Switch Matrix
CC
CC
N-channel power MOSFETs are
3.3V/5V Switch Matrix
LTC1470/LTC1471
3.3V/5V Switch Matrix
Single and Dual
CC
pins of a Personal Com-
CC
TM
Switches
current limit and
PACKAGE
8-Pin SO
16-Pin SO*
14-Pin SO
24-Pin SSOP
8-Pin SO
16-Pin SO*
16-Pin SO*
14701fa
1

Related parts for LTC1470CS8#TR

LTC1470CS8#TR Summary of contents

Page 1

... The LTC1471 is a dual version of the LTC1470 and is available in a 16-pin SO package. , LTC and LT are registered trademarks of Linear Technology Corporation. SafeSlot is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. Switch CC 3 ...

Page 2

LTC1470/LTC1471 ABSOLUTE MAXIMUM 3.3V Supply Voltage (3V ) (Note 2) ........................ Supply Voltage (5V ) (Note 2) ............................ 7V IN Enable Input Voltage ..................... 5V Output Voltage (OFF) (Note 2) ......... 7V to (GND ...

Page 3

ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER Delay and Rise Time (Note Delay and Rise Time (Note Delay and Rise Time (Note Note 1: Absolute ...

Page 4

LTC1470/LTC1471 W U TYPICAL PERFORMANCE CHARACTERISTICS 5V Switch Resistance 0.30 PROGRAMMED TO 5V 0.25 0.20 0.15 0.10 0. 100 125 JUNCTION TEMPERATURE (°C) 1470/71 G06 PIN FUNCTIONS LTC1470 OUT (Pins 1, 8): ...

Page 5

PIN FUNCTIONS LTC1471 AOUT, BOUT(Pins 1, 16, 8, 9): Output Pins. The outputs of the LTC1471 are switched between three operating states: OFF, 3.3V and 5V. These pins are protected against accidental short circuits to ground by ...

Page 6

LTC1470/LTC1471 U OPERATION The LTC1470 (or 1/2 of the LTC1471) consists of the following functional blocks: Input TTL/CMOS Converters The enable inputs are designed to accommodate a wide range of 3V and 5V logic families. The input threshold voltage is ...

Page 7

U U APPLICATIONS INFORMATION Truth Table for CL-PD6710 Controller A_V _3 A_V EN0 EN1 Interfacing with “365” Type Controllers The LTC1470 also interfaces directly with “365” type controllers as ...

Page 8

LTC1470/LTC1471 U U APPLICATIONS INFORMATION TOTAL SYSTEM COST CONSIDERATIONS The cost of an additional step-up switching regulator, induc- tor, rectifier and capacitors to produce 12V for VPP can be eliminated by using an auxiliary winding on either the 3.3V or ...

Page 9

... VPP pins require 3.3V or 5V. In this circuit, however, Q3 and Q4 force the LTC1142 3.3V regulator into continuous mode operation whenever 3.3V 12V is programmed at the VPP LT1313 data sheets for further detail.) Burst Mode is a trademark of Linear Technology Corporation 5.4V TO 11V 24 ...

Page 10

LTC1470/LTC1471 U TYPICAL APPLICATIONS Dual Slot 3.3V/5V PCMCIA Controller with SafeSlot Current Limit 3.3V 5V CL-PD6710 A_V _3 CC A_V _5 CC B_V _3 CC B_V _5 CC Single Slot PCMCIA Controller with SafeSlot Current Limit V LOGIC V CC ...

Page 11

... MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm) Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of circuits as described herein will not infringe on existing patent rights. ...

Page 12

... IN OUT Q = 2.5V to 5.5V 0.8V 60µA IN OUT Q = 2.5V to 5.5V 0.8V 60µA IN OUT Q = 2.25V to 5.5V 280µA IN OUT REF 5.5V to 60V 1.20V 2.5mA IN OUT Q = 2.5V to 5.5V 2.5V 25µA IN OUT Q LT/LT 0705 REV A • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 1995 14701fa ...

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