Wall CAH24S12-40 Single, dual, and triple output ultra wide input voltage range up to 40 watts dc/dc converter Datasheet

Rev B
CAH Series
Single, Dual, and Triple Output
Ultra Wide Input Voltage Range
Up to 40 Watts DC/DC Converter
FEATURES
● Regulated Outputs
● Remote On/Off Control
● Industry Standard Pin-Out
● 500VDC Minimum I/O Isolation
● Redesigned for Higher Efficiency
● Ultra-Wide Input Voltage Range (4:1)
● Thermal Shutdown with Auto-Recovery
● Current Limiting Short Circuit Protection
● LC Input Filter for low Reflected Ripple Current
● Operating Temperature –40°C to +100°C Baseplate
DESCRIPTION
The CAH series of single, dual, and triple output dc/dc converters performs over an ultra-wide input voltage range (4:1),
providing indefinite short-circuit and over-voltage protection. The CAH series design technology allows for up to 40 watts
output power from a 3.0" x 3.0" x 0.55", or 3.6" x 3.0" x 0.55" with baseplate. These current mode control forward converters
are designed for improved transient response and reduced stress on switching components.
SPECIFICATIONS: CAH Series
All specifications apply @ 25°C ambient unless otherwise noted
INPUT SPECIFICATIONS
PROTECTION SPECIFICATIONS
Input Voltage Range .......5V nominal input .................4.5 - 9VDC
24V nominal input.................9 - 36VDC
48V nominal input..............18 - 75 VDC
Short Circuit Protection ............................continuous, hiccup mode
Input Filter ................................................................ LC input filter
Over Voltage Protection..............................................Zener Clamp
Current Limiting .....................................................Power Foldback
Remote On/Off Control .................................. Open Collector TTL
GENERAL SPECIFICATIONS
OUTPUT SPECIFICATIONS
Efficiency ...................................................................... 85% typical
Output Voltage ................................................................ see table
External Output Trim ......................................±10% (primary only)
Voltage Tolerance .............................. ±1% primary, ±2% auxiliary
Switching Frequency .................................................. 300kHz (typ)
Isolation Voltage (Input to Output) ............................500VDC (min)
Isolation Resistance (Input to Output)..................................500MΩ
Output Current ................................................................ see table
ENVIRONMENTAL SPECIFICATIONS
Output Power .................................................................. see table
Operating Temperature (ambient) ....... -40°C to +100°C Baseplate
Line Regulation .............................. ±0.5% primary, ±1% auxiliary
Storage Temperature............................................ -55°C to +100°C
Load Regulation ......................... ±1% single outputs (see note 5)
Humidity (non-condensing) ....................................20% to 95% RH
Ripple/Noise (20MHz BW) ........................... 1% Vout (see note 7)
PHYSICAL SPECIFICATIONS
Transient Response ........................... < 200μs to within ±1% Vout
Temperature Coefficient.........................................0.02%/°C max.
Weight ........................................................... Approximately 7.0 oz
Dimensions (L x W x H) ...............................3.0 x 3.0 x 0.55 inches
Dimensions with Baseplate (L x W x H) .......3.6 x 3.0 x 0.55 inches
Case Material.................. Black coated metal, aluminum baseplate
Shielding ......................................................................... six - sided
Due to advances in technology, specifications subject to change without notice
01/03/2011
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
Page 1 of 3
Rev B
CAH Series
Single, Dual, and Triple Output
Ultra Wide Input Voltage Range
Up to 40 Watts DC/DC Converter
MODEL SELECTION GUIDE
Model Number
CAH5S3.3-25
CAH5S5-25
CAH5S12-25
CAH5S15-25
CAH5S18-25
CAH5D5-25
CAH5D12-25
CAH5D15-25
CAH24S3.3-25
CAH24S5-25
CAH24S5-40
CAH24S12-25
CAH24S12-40
CAH24S15-25
CAH24S15-40
CAH24S18-25
CAH24S18-40
CAH24D12-30
CAH24D12-40
CAH24D15-30
CAH24D15-40
CAH24T12-30
CAH24T15-30
CAH48S3.3-25
CAH48S5-25
CAH48S5-40
CAH48S12-25
CAH48S12-40
CAH48S15-25
CAH48S15-40
CAH48S18-25
CAH48S18-40
CAH48D12-30
CAH48D12-40
CAH48D15-30
CAH48D15-40
CAH48T12-30
CAH48T15-30
Input Voltage Range
5VDC
(4.5 – 9 VDC)
24VDC
(9 – 36 VDC)
48VDC
(18 – 75 VDC)
Output Voltage
Output Current
Over Voltage Set-Point
Output Power
3.3 VDC
5 VDC
12 VDC
15 VDC
18 VDC
±5 VDC
±12 VDC
±15 VDC
3.3 VDC
5 VDC
5 VDC
12 VDC
12 VDC
15 VDC
15 VDC
18 VDC
18 VDC
±12 VDC
±12 VDC
±15 VDC
±15 VDC
+5 / ±12 VDC
+5 / ±15 VDC
3.3 VDC
5 VDC
5 VDC
12 VDC
12 VDC
15 VDC
15 VDC
18 VDC
18 VDC
±12 VDC
±12 VDC
±15 VDC
±15 VDC
+5 / ±12 VDC
+5 / ±15 VDC
7.58A
5.0A
2.0A
1.6A
1.38A
2.5A
1.04A
0.83A
7.58A
5.0A
8.0A
2.0A
3.3A
1.6A
2.66A
1.38A
2.22A
1.25A
1.66A
1.0A
1.33A
4.0 / ±0.42A
4.0 / ±0.33A
7.58A
5.0A
8.0A
2.0A
3.3A
1.6A
2.66A
1.38A
2.22A
1.25A
1.66A
1.0A
1.33A
4.0 / ±0.42A
4.0 / ±0.33A
5.1 VDC
6.2 VDC
15 VDC
18 VDC
21 VDC
6.2 VDC
15 VDC
18 VDC
5.1 VDC
6.2 VDC
6.2 VDC
15 VDC
15 VDC
18 VDC
18 VDC
21 VDC
21 VDC
15 VDC
15 VDC
18 VDC
18 VDC
6.2 / 15 VDC
6.2 / 18 VDC
5.1 VDC
6.2 VDC
6.2 VDC
15 VDC
15 VDC
18 VDC
18 VDC
21 VDC
21 VDC
15 VDC
15 VDC
18 VDC
18 VDC
6.2 / 15 VDC
6.2 / 18 VDC
25W
25W
24W
24W
25W
25W
25W
25W
25W
25W
40W
24W
40W
24W
40W
25W
40W
30W
40W
30W
40W
30W
30W
25W
25W
40W
24W
40W
24W
40W
25W
40W
30W
40W
30W
40W
30W
30W
NOTES
1.
2.
3.
4.
5.
All case and pin dimensions reference only unless otherwise noted.
Baseplate protrudes 0.02”, two sides.
PC pins 0.04” dia x 0.18” long minimum: typical nine places.
Pin-to-pin tolerance ±0.01”. Pin dimension tolerance ±0.005”.
10% minimum load required on outputs.
Singles: ±1% min. to full load
Duals: ±1% min. to full load (balanced)
±5% min. to max load (unbalanced)
Triples: ±1% min. to full load (main output)
±5% min to full load aux (unbalanced)
6. Significant capacitive load may inhibit start-up and operation, consult factory.
7. Ripple & Noise is measured with a 0.1μF capacitor across the output.
01/03/2011
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
Page 2 of 3
CAH Series
Single, Dual, and Triple Output
Ultra Wide Input Voltage Range
Up to 40 Watts DC/DC Converter
Rev B
MECHANICAL DRAWING
Unit: inches (mm)
WALL INDUSTRIES
R
DC/DC CONVERTER
MODEL NO.
EXETER, NH 03833
XXXX
1
2
3
XXXX
4
A
A
B
B
A
10
9
8
7
6
A
PIN CONNECTIONS
1. All Dimensions are for reference only, unless otherwise noted
2. Pin-to-Pin Tolerance: ±0.01 [0.2]
Pin Diameter Tolerance: ±0.005 [0.13]
01/03/2011
PIN
1
2
3
4
5
6
7
8
9
10
SINGLE
Remote
Case
+Vin
-Vin
No Pin
N/C
N/C
Common
+Vout
Trim
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
DUAL
Remote
Case
+Vin
-Vin
No Pin
-Vout
Common
Common
+Vout
Trim
TRIPLE
Remote
Case
+Vin
-Vin
No Pin
Aux. -Vout
Aux. +Vout
Common
+5Vout
Trim
Page 3 of 3
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