鈥?/div>
Single and Dual Outputs
Industry Standard Package and Pin-Out
Pi Input Filter Integral to Converter
1600VDC I/O Isolation
Regulated Output
Continuous short circuit protection
Remote On/Off Feature
Ten Year Warranty
THE YF SERIES FROM WALL INDUSTRIES
The YF series of single and dual output DC/DC converters
performs over an ultra-wide input voltage range (2:1 & 4:1),
providing indefinite short circuit and overvoltage protection.
The series鈥?design technology allows 20 watts of output
power from a 1.60鈥?x 2.0鈥?x 0.40鈥?case. These current mode
control forward converters are designed for improved tran-
sient response and reduced stress on switching components
and do not require external input filtering,making it a pre-
ferred source over industry alternatives.
SPECIFICATIONS: YF SERIES
Ripple/Noise (20MHz BW) .................. 75mV P-P
All specifications apply @ +25 C ambient unless otherwise
Transient Response <500msec to within 鹵1% Vout
noted.
INPUT SPECIFICATIONS
Input Voltages............18-36,36-75,9-36,20-75,18-75VDC
Nominal Input..................................................24, 48VDC
Remote On/Off Control..........CMOS or TTL (see note 7)
Input Filter......................................................Pi input filter
GENERAL SPECIFICATIONS
Efficiency ..............................................83% typical
Isolation Voltage (input to output) ..1600VDC min.
Isolation Resistance (input to output) ......1000MW
Switching Frequency ......................300kHz typical
OUTPUT SPECIFICATIONS
Output Current...................................................see table
Output Voltage Tolerance..........................................鹵2%
Output Trim (external)..............................................鹵10%
Line Regulation: full line.........................................鹵0.5%
Line Regulation: 20 Watt 4:1
Input...........................................................................鹵1%
Load Regulation
Singles (25-100% load)..........................鹵0.5%
(NL-100% load) ........................................鹵1%
Duals (50-100% load) ..............................鹵1%
(NL-100% load) ........................................鹵5%
Short Circuit Protection....................................continuous
ENVIRONMENTAL SPECIFICATIONS
Operating Temperature (case) ........-25 to +105擄C
Storage Temperature ......................-55 to +125擄C
Humidity (non-condensing) ..............20 - 95% R.H.
PHYSICAL SPECIFICATIONS
Weight ............................................approx. 4.0 oz.
Dimensions ..................................1.6 x 2.0 x 0.40鈥?/div>
Case Material ......................Nickel coated copper,
......................................non-conductive baseplate
Shielding..................................................Six-Sided
Due to advances in technology, specifications subject to change without
notice.
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603 778 2300
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WALLINDUSTRIES
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