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
WWW
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WALLINDUSTRIES
.
COM
25 TO 40 WATTS
Input
Voltage
(VDC)
4.5-9
CA SERIES
Model
Number
Output
Voltage
(VDC)
3.3
5
12
15
18
±5
±12
±15
3.3
5
12
15
18
±12
±15
+5/±12
+5/±15
Output Over Voltage
Current Set-Point
(Amps)
(VDC)
7.58
5.0
2.0
1.6
1.38
2.5
1.04
.83
7.58
5.0
8.0
2.0
3.3
1.6
2.66
1.38
2.22
1.25
1.66
1.0
1.33
4.0/±0.42
4.0/±0.33
7.58
5.0
8.0
2.0
3.3
1.6
2.66
1.38
2.22
1.25
1.66
1.0
1.33
4.0/±0.42
4.0/±0.33
7.58
5.0
8.0
2.0
3.3
1.6
2.66
1.38
2.22
1.25
1.66
1.0
1.33
4.0/±0.42
4.0/±0.33
5.1
6.2
15
18
21
6.2
15
18
5.1
6.2
6.2
15
15
18
18
21
21
15
15
18
18
6.2/15
6.2/18
5.1
6.2
6.2
15
15
18
18
21
21
15
15
18
18
6.2/15
6.2/18
5.1
6.2
6.2
15
15
18
18
21
21
15
15
18
18
6.2/15
6.2/18
PIN CONNECTIONS
CA5S3.3-25
CA5S5-25
CA5S12-25
CA5S15-25
CA5S18-25
CA5D5-25
CA5D12-25
CA5D15-25
CA24S3.3-25
CA24S5-25
CA24S5-40
CA24S12-25
CA24S12-40
CA24S15-25
CA24S15-40
CA24S18-25
CA24S18-40
CA24D12-30
CA24D12-40
CA24D15-30
CA24D15-40
CA24T12-30
CA24T15-30
CA48S3.3-25
CA48S5-25
CA48S5-40
CA48S12-25
CA48S12-40
CA48S15-25
CA48S15-40
CA48S18-25
CA48S18-40
CA48D12-30
CA48D12-40
CA48D15-30
CA48D15-40
CA48T12-30
CA48T15-30
CA74S3.3-25
CA74S5-25
CA74S5-40
CA74S12-25
CA74S12-40
CA74S15-25
CA74S15-40
CA74S18-25
CA74S18-40
CA74D12-30
CA74D12-40
CA74D15-30
CA74D15-40
CA74T12-30
CA74T15-30
Singles
1
2
3
4
5
6
7
8
9
10
Remote
Case
+ Vin
- Vin
No pin
N/C
N/C
Common
+Vout
Trim
Duals
Remote
Case
+Vin
-Vin
No pin
-Vout
Common
Common
+Vout
Trim
Triples
Remote
Case
+Vin
-Vin
No pin
Aux. -Vout
Aux. +Vout
Common
+5Vout
Trim
Alternate
Pin-Out A
-Vin
+Vin
No pin
9-36
NOTES:
1. All case and pin to case dimensions reference only unless
otherwise noted.
2. PC pins 0.04” dia x 0.18” long min.; typical nine places.
3. Pin to pin tolerance ±0.01”. Pin dimension tolerance
±0.005”
4. Duals: 25 - 100% load: ±1% and 0-100% load: ±5%.
Triples: 10% min load required on primary output, ±1%.
5. Significant capacitive load may inhibit start-up and opera-
tion, consult factory.
6. For Industrial Temp add suffix “I”.
18-75
3.3
5
12
15
18
±12
±15
+5/±12
+5/±15
55-110
3.3
5
12
15
18
±12
±15
+5/±12
+5/±15
11/29/01
WWW
.
WALLINDUSTRIES
.
COM
603 778 2300
2
CA SERIES
25 TO 40 WATTS
11/29/01
3
603 778 2300
WWW
.
WALLINDUSTRIES
.
COM
