ThermalMax餂?/div>
I N T E G R A T E D
P R O D U C T S
LX1810
ThermoElectric Cooler Drive Controller IC
P
RODUCTION
D
ATA
S
HEET
DESCRIPTION
KEY FEATURES
WWW .
Microsemi
.C
OM
The LX1810 is a Full-Bridge
thermo-electric cooler (TEC) controller
specifically
designed
for
high
performance opto-electronic products
where precise temperature control is
required. These products tune or
stabilize sensitive optical components
in applications that include frequency
tunable fiber optic lasers, EDFA
amplifiers, waveguides, and other
dense wavelength division multi-
plexing (DWDM) components. Other
applications
include
microwave
transistors in new wireless base-
stations.
The LX1810 uses highly efficient
(>90%) pulse width modulation
(PWM) technology, allowing the
controller to be conveniently mounted
near the TEC without adding heat
to the system. The LX1810 operates on a
single
voltage
supply,
greatly
simplifying supply requirements, with an
operating frequency that is high enough
to eliminate detrimental thermal stresses
to the TEC. The output ripple factor of
the system can be maintained well below
10% thus not effecting the performance
of delta T control.
Utilizing a full-bridge topology, the
LX1810 can be used for both heating
and cooling operations. The LX1810,
when used in conjunction with a
temperature sense device, accurately
regulates TEC current levels allowing
tight control of temperature.
Fully integrated FET drivers in a 28-
Pin SSOP allows the design of a fully
functional TEC controller while
minimizing board space.
Integrated Switching Full-Bridge
PWM Drive Architecture
Single DC Supply Operation
Very Low Output Noise
Maximum Efficiency 90%
High Output Integrated Drivers
PSRR 鈥?0dB Typical
Differential Input To Minimize
Noise
External Oscillator
Synchronization
28-Pin SSOP Package
APPLICATIONS/BENEFITS
Peltier Effect (Thermoelectric
Coolers) Controllers
High Efficiency H-Bridge Drive
Circuits
RF Power Amplifier Electronic
Cooling
CPU Electronic Cooling
IMPORTANT:
For the most current data, consult
MICROSEMI鈥檚
website:
http://www.microsemi.com
PRODUCT HIGHLIGHT
V
IN
= 15V
LX1810
TEC
R
T
LX1810
LX1810
PACKAGE ORDER INFO
T
A
(擄C)
0 to 70
Plastic SSOP
DB
28-Pin
LX1810-CDB
Note: Available in Tape & Reel.
Append the letter 鈥淭鈥?to the part number. (i.e. LX1810-CDBT)
Copyright
錚?/div>
2002
Rev. 1.0a, 10/21/2002
Microsemi
Integrated Products
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
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