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DCHAA SERIES
5~6 Watt DC/DC Power Converters
Rev B
FEATURES
• 2:1 Wide Input Voltage Ranges • -40°C to +85°C Operating Temperature Range
• 5~6 Watts Output Power
• 4000VACrms I/O Isolation Voltage
• RoHS Compliant
• 6000Vpk Isolation Test Voltage
• No Minimum Load
• Short Circuit Protection: Continuous & Auto-
Requirement
Size:
1.25 x 0.80 x 0.50 inches
31.7 x 20.3 x 12.65 mm
• Single and Dual Outputs
• Over Voltage Protection: Clamp Mode
• High Efficiency up to 85%
• 24-Pin DIP Package with Industry-Standard Footprint
DESCRIPTION
The DCHAA series of DC/DC power converters provides up to 6 Watts of continuous
output power in a 1.25” x 0.80” x 0.50” 24-pin DIP package. This series consists of single
and dual output models with 2:1 input voltage ranges of 9~18VDC, 18~36VDC, and
36~75VDC. Some features include high efficiency up to 85%, 4000VACrms I/O isolation, 40°C to +85°C operating temperature range, and no minimum load requirement. The
DCHAA series is RoHS and UL94V-0 compliant. These converters are best suited for use
in battery operated equipment, measurement equipment, telecom, wireless networks,
industry control systems, and anywhere where isolated and compact size are required.
APPLICATIONS
•
•
•
•
•
Recovery
Battery Operated Equipment
Telecom
Industry Control Systems
Wireless Networks
Measurement Equipment
MODEL SELECTION TABLE
SINGLE OUTPUT MODELS
Model Number
DCHAA12S5-5H
DCHAA12S12-6H
DCHAA24S5-5H
DCHAA24S12-6H
DCHAA48S5-5H
DCHAA48S12-6H
Input Current
No Load
Full Load
Output Power
Efficiency (1)
Maximum
Capacitive Load
541mA
5W
81%
2000µF
35mA
630mA
6W
83%
470µF
1000mA
13mA
265mA
5W
82%
2000µF
12 VDC
500mA
13mA
309mA
6W
85%
470µF
5 VDC
1000mA
8mA
135mA
5W
81%
2000µF
12 VDC
500mA
9mA
158mA
6W
83%
470µF
Output Power
Efficiency (1)
Maximum (2)
Capacitive Load
Input Voltage Range
Output Voltage
Output Current
12 VDC
(9 – 18 VDC)
5 VDC
1000mA
22mA
12 VDC
500mA
5 VDC
24 VDC
(18 – 36 VDC)
48 VDC
(36 – 75 VDC)
DUAL OUTPUT MODELS
Input Current
No Load
Full Load
Model Number
Input Voltage Range
Output Voltage
Output Current
DCHAA12D12-6H
12 VDC
(9 – 18 VDC)
±12 VDC
±250mA
36mA
630mA
6W
83%
±220µF
±15 VDC
±200mA
37mA
630mA
6W
83%
±220µF
24 VDC
(18 – 36 VDC)
±12 VDC
±250mA
19mA
313mA
6W
84%
±220µF
±15 VDC
±200mA
21mA
309mA
6W
85%
±220µF
48 VDC
(36 – 75 VDC)
±12 VDC
±250mA
11mA
158mA
6W
83%
±220µF
±15 VDC
±200mA
12mA
158mA
6W
83%
±220µF
DCHAA12D15-6H
DCHAA24D12-6H
DCHAA24D15-6H
DCHAA48D12-6H
DCHAA48D15-6H
NOTES
1. Typical value tested at nominal input and full load.
2. For each output.
*Due to advances in technology, specifications subject to change without notice.
01/14/2013
Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 •
Fax 603-778-9797
website: www.wallindustries.com • e-mail: sales@wallindustries.com
Page 1 of 4
Rev B
DCHAA SERIES
5~6 Watt DC/DC Power Converters
TECHNICAL SPECIFICATIONS: DCHAA SERIES
All specifications are based on 25°C, Nominal Input Voltage, and Maximum Output Current unless otherwise noted.
We reserve the right to change specifications based on technological advances.
SPECIFICATION
TEST CONDITIONS
Min
Nom
Max
Unit
12VDC nominal input models
24VDC nominal input models
48VDC nominal input models
12VDC nominal input models
24VDC nominal input models
48VDC nominal input models
Nominal Vin and full load
9
18
36
12
24
48
25
50
100
18
36
75
VDC
Nominal Vin and full load
-1
INPUT SPECIFICATIONS
Input Voltage Range
Input Surge Voltage (100ms max.)
Input Reflected Ripple Current
Input Current
Input Filter
VDC
76
See Table
Pi type
mAp-p
OUTPUT SPECIFICATIONS
Output Voltage
Voltage Accuracy
Output Current
Minimum Load
Line Regulation
LL to HL at full load
Single Outputs
25% load to full load
Balanced Load
Dual Outputs
Unbalanced Load: 25% to 100%
load
Load Regulation
See Table
+1
See Table
0
-0.5
-0.5
-0.5
+0.5
+0.5
+0.5
-3
+3
Capacitive Load
Output Power
Ripple & Noise (20MHz BW)
Start-Up Time
Transient Response Settling Time
Transient Response Overshoot
Temperature Coefficient
5V Output Models
12 V Output Models
Others
Nominal Vin and constant resistive load
50% load step change
di/dt = 0.8/µs
-0.02
See Table
See Table
110
150
70
150
200
510
780
±5
+0.02
%
A
%
%
mVp-p
ms
µs
% Vo
%/°C
PROTECTION
Short Circuit Protection
Over Load Protection
Over Voltage Protection
Continuous, automatic recovery
% of full load
5V Output Models
12V Output Models
15V Output Models
120
%
6.2
15
18
Zener diode clamp
VDC
GENERAL SPECIFICATIONS
Efficiency
Switching Frequency
I/O Isolation Voltage (rated)
I/O Isolation Test Voltage
Isolation Resistance
Isolation Capacitance
Nominal input and full load
60 seconds
Flash tested for 1 second
500VDC
See Table
150
4000
6000
1
12
KHz
VACrms
Vpk
GΩ
pF
ENVIRONMENTAL SPECIFICATIONS
Operating Temperature
Case Temperature
Storage Temperature
Relative Humidity
Cooling
MTBF
Full load
-40
-50
5
+85
+95
+125
95
Free air convection
70,000
°C
°C
°C
% RH
hours
PHYSICAL SPECIFICATIONS
Case Material
Potting Material
Weight
Non-conductive black plastic
Silicon rubber (UL94V-0)
0.56oz (16g)
1.25 x 0.80 x 0.50 inches (31.7 x 20.3 x 12.65
mm)
Dimensions (L x W x H)
EMC CHARACTERISTICS
EMI
01/14/2013
EN55022 (radiation)
Meets class A
Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 •
Fax 603-778-9797
website: www.wallindustries.com • e-mail: sales@wallindustries.com
Page 2 of 4
Rev B
DCHAA SERIES
5~6 Watt DC/DC Power Converters
DERATING
DCHAA48S5-5H Derating Curve
EFFICIENCY
DCHAA48S5-5H Efficiency vs Input Voltage
DCHAA48S5-5H Efficiency vs Output Current
CHARACTERISTICS
DCHAA48S5-5H
Transient Response at 50%~100% Load
01/14/2013
DCHAA48S5-5H
Loop Gain & Phase at Vi=48V, Full load
Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 •
Fax 603-778-9797
website: www.wallindustries.com • e-mail: sales@wallindustries.com
Page 3 of 4
Rev B
DCHAA SERIES
5~6 Watt DC/DC Power Converters
MECHANICAL DRAWING
COMPANY INFORMATION
Wall Industries, Inc. has created custom and modified units for over 50 years. Our in-house research and development
engineers will provide a solution that exceeds your performance requirements on-time and on budget. Our ISO9001-2008
certification is just one example of our commitment to producing a high quality, well-documented product for our customers.
Our past projects demonstrate our commitment to you, our customer. Wall Industries, Inc. has a reputation for working closely
with its customers to ensure each solution meets or exceeds form, fit and function requirements. We will continue to provide
ongoing support for your project above and beyond the design and production phases. Give us a call today to discuss your
future projects.
Contact Wall Industries for further information:
Phone:
Toll Free:
Fax:
E-mail:
Web:
Address:
01/14/2013
(603)778-2300
(888)597-9255
(603)778-9797
sales@wallindustries.com
www.wallindustries.com
5 Watson Brook Rd.
Exeter, NH 03833
Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 •
Fax 603-778-9797
website: www.wallindustries.com • e-mail: sales@wallindustries.com
Page 4 of 4