A
5 to 7.5 Watt FW Single Series DC/DC Converters
STCO#970521-2
Manufacturing Company, Inc. Concord, California 94520 Ph: 925/687-4411 or 800/542-3355 Fax: 925/687-3333 www.calex.com Email: sales@calex.com
1
CURRENT
MODE
PWM
BANDGAP REFERENCE
ISOLATION TRANSFORMER
THERMAL SHUTDOWN
1
2
+ INPUT
- INPUT
3
5
+ OUTPUT
CMN
Features
!
Low noise outputs, 70 mV P-P maximum
!
Very low reflected ripple, 50 mA P-P maximum
!
Excellent regulation from no load to full load 0.2%
maximum
!
Excellent line regulation, 0.1% maximum
!
Efficiencies to 82%
!
Six-sided shielded low thermal gradient copper case
!
Five Year Warranty
7.5 Watt FW Single Series Block Diagram
Description
The low voltage FW single output converters are designed for
ultra wide input range, low noise industrial and instrument
applications requiring low input operating voltages. The wide
input range (3:1) is ideal for battery or unregulated input
applications.
These converters are state-of-the-art 100 kHz designs that
provide outstanding line and load regulation with efficiencies
approaching 82%.
The single outputs are regulated with a high loop gain
current mode control method that provides linear regulator
type performance with a true, high efficiency switching DC/DC
topology. The large amount of loop gain also insures excellent
input ripple rejection and line transient response.
All converters in this series are protected from output short
circuit, thermal overload and overvoltage transients on the
input and output.
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