CA SERIES
25 TO 40 WATTS - CA SERIES
Ultra Wide Input Voltage Range, Low Profile
25 TO 40 WATTS
FEATURES
•
Ultra-Wide Input Voltage Range (4:1)
•
LC Input Filter for Low Reflected Ripple Current
•
Regulated Outputs
•
Thermal Shutdown with Auto-Recovery
•
Current Limiting Short Circuit Protection
•
500VDC min. I/O Isolation
•
Industry Standard Package and Pin-Out
•
Industrial temperature grade also available
THE CA SERIES FROM WALL INDUSTRIES
The CA Series of single, dual and triple output DC/DC con-
verters performs over an ultra-wide input voltage range (4:1),
providing indefinite short circuit and overvoltage protection.
Without a heatsink, the CA Series’ design technology allows
for up to 40 watts output power from a 3.0 x 3.0 x 0.40”
case. These current mode control forward converters are
designed for improved transient response and reduced
stress on switching components.
SPECIFICATIONS: CA SERIES
All specifications apply @ +25 C ambient unless otherwise
Efficiency...........................................................80% typical
noted.
.............5VDC in................................................75% typical
INPUT SPECIFICATIONS
Isolation Voltage (input to output)...................500VDC min.
Input Voltages......................4.5-9,9-36, 18-75, 55-110VDC
Isolation Resistance (input to output)...............500MOhms
Nominal Input...........................................5, 24, 48, 74VDC
Switching Frequency...................................250kHz(typical)
Input Filter......................................................LC input filter
Remote On/Off Control........................Open Collector TTL
ENVIRONMENTAL SPECIFICATIONS
Operating Temperature (ambient).......-25 to 85%°C (case)
OUTPUT SPECIFICATIONS
Storage Temperature.....................................-55 to +100°C
Output Current......................................................see table
Temperature Coefficient.........................0.02% per °C max.
Voltage Tolerance....................±1% primary, ±2% auxiliary
Humidity (non-condensing).......................20% to 95% R.H.
Output Trim (external).........................±10% (primary only)
Line Regulation...........................................................0.5%
PHYSICAL SPECIFICATIONS
Load Regulation..........................±1% singles (see note 5) Shielding...............................................................Six-sided
Weight..........................................................approx. 4.0 oz.
Ripple/Noise (20MHz BW)..................................75mV p-p
Case Material.......................................Black coated metal,
Transient Response............<200u sec to within ±1% Vout
...................................................non-conductive base plate
Due to advances in technology, specifications subject to
change without notice.
11/29/01
GENERAL SPECIFICATIONS
1
603 778 2300
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