ISL54054_0709 Datasheet, PDF (1/12 Pages) Intersil Corporation – Ultra Low ON-Resistance, Low Voltage, Single Supply, Single SPST/1:2 Distribution Analog Switch

®
Data Sheet
ISL54054, ISL54055
September 25, 2007
FN6461.1
Ultra Low ON-Resistance, Low Voltage,
Single Supply, Single SPST/1:2
Distribution Analog Switch
The Intersil ISL54054 and ISL54055 devices consist of low
ON-resistance, low voltage, bi-directional SPST analog
switches designed to operate from a single +1.8V to +5.5V
supply. These devices have an unique architecture. They
have two signal pins (pin 1 and pin 3) that are
simultaneously connected or disconnected to a common pin
(pin 4) under the control of a single logic control pin (pin 6).
The ISL54054 switches are OFF when the logic is low and
ON when the logic is high. The ISL54055 switches are ON
when the logic is low and OFF when the logic is high. This
architecture allows these devices to be used as a single
SPST switch or as a distribution switch to distribute a single
source to two different loads.
SPST operation is achieved by using one of the signal pins
while floating the other signal pin or by externally connecting
the two signal pins together. When both signal pins are tied
together, the r_ON of the SPST is reduced by half, from 1Ω to
0.5Ω (when operated with a 5V supply).
Targeted applications include battery powered equipment
that benefit from low r_ON resistance, excellent r_ON flatness,
and fast switching speeds (t_ON = 12ns, t_OFF = 12ns). The
digital logic input is 1.8V logic compatible when using a
single 2.7V to +3.6V supply and TTL compatible when the
supply is > +3.6V.
The ISL54054 and the ISL54055 are offered in a 6 Ld
1.2mmx1.0mmx0.5mm μTDFN package, alleviating board
space limitations.
The ISL54054 has two normally open (NO) switches and the
ISL54055 has two normally closed (NC) switches.
TABLE 1. FEATURES AT A GLANCE
ISL54054
ISL54055
Number of Switches
1
1
SW
NO
NC
1.8V r_ON
1.8V t_ON/t_OFF
3V r_ON
3V t_ON/t_OFF
5V r_ON
5V t_ON/t_OFF
Packages
1.1Ω
1.1Ω
115ns/90ns
115ns/90ns
0.51Ω
0.51Ω
22ns/17ns
22ns/17ns
0.34Ω
0.34Ω
12ns/12ns
12ns/12ns
6 Ld μTDFN
Features
• ON-resistance (r_ON) (Signal Pins Connected)
- V_CC = +5.0V . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.34Ω
- V_CC = +3.0V . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.51Ω
- V_CC = +1.8V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1Ω
• r_ON flatness (+4.5V supply) . . . . . . . . . . . . . . . . . . . . . 0.13Ω
• Single supply operation . . . . . . . . . . . . . . . . . +1.8V to +5.5V
• Fast switching action (+4.5V supply)
- t_ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12ns
- t_OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12ns
• ESD HBM rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >6kV
• 1.8V logic compatible (+3V supply)
• Available in 6 lead μTDFN Package
• Pb-free (RoHS compliant)
Applications
• Battery powered, handheld and portable equipment
- Cellular/mobile phones
- Pagers
- Laptops, notebooks, palmtops
• Portable test and measurement
• Medical equipment
• Audio and video switching
Related Literature
• Technical Brief TB363 “Guidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
Ordering Information
PART
NUMBER
(Note)
PART
MARKING
TEMP.
RANGE
(°C)
PACKAGE
(Pb-Free)
PKG.
DWG. #
ISL54054IRUZ-T*
D
-40 to +85 6 Ld μTDFN L6.1.2x1.0A
Tape and Reel
ISL54055IRUZ-T*
E
-40 to +85 6 Ld μTDFN L6.1.2x1.0A
Tape and Reel
*Please refer to TB347 for details on reel specifications.
NOTE: These Intersil Pb-free plastic packaged products employ special
Pb-free material sets; molding compounds/die attach materials and
NiPdAu plate - e4 termination finish, which is RoHS compliant and
compatible with both SnPb and Pb-free soldering operations. Intersil Pb-
free products are MSL classified at Pb-free peak reflow temperatures that
meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2007. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.