Wall Industries, Inc.

Rev E

DCHB200 SERIES

165~255 Watts, Half-Brick DC/DC Power Converters

09/04/2014

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 9

SPECIFICATIONS: DCHB200 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

Typ

Max

Unit

GENERAL SPECIFICATIONS

Efficiency

Nominal input voltage and full load

See Table

Switching Frequency

225

250

275

kHz

Input to Output

2250

Input to Case

1600

Isolation Voltage

1 minute (basic insulation)

Output to Case

1600

VDC

Isolation Resistance

500VDC

1

GΩ

Isolation Capacitance

2500

pF

PHYSICAL SPECIFICATIONS

Standard models

3.70oz (105g)

“T” suffix models

8.29oz (235g)

“TF” suffix models

9.88oz (280g)

Weight

“TF1” suffix models

10.12oz (287g)

Standard models

2.40 x 2.28 x 0.50 inches (61.0 x 57.9 x 12.7 mm)

“T” suffix models

3.35 x 2.40 x 1.27 inches (85.0 x 61.0 x 32.3 mm)

“TF” suffix models

3.35 x 2.40 x 1.47 inches (85.0 x 61.0 x 37.3 mm)

Dimensions (L x W x H)

“TF1” suffix models

3.35 x 2.40 x 1.53 inches (85.0 x 61.0 x 38.8 mm)

Case Material

Metal

Base Material

FR4 PCB

Potting Material

Silicon (UL94-V0)

Shielding

Six-sided

SAFETY & EMC CHARACTERISTICS

Safety Approvals

IEC60950-1, UL60950-1, EN60950-1

Class A

EMI (See Note 5)

EN55022

Class B

ESD

EN61000-4-2

Air ±8kV and Contact ±6kV

Perf. Criteria A

Radiated Immunity

EN61000-4-3

20 V/m

Perf. Criteria A

Fast Transient (See Note 6)

EN61000-4-4

±2kV

Perf. Criteria A

Surge (See Note 6)

EN61000-4-5

EN55024 ±2kV

Perf. Criteria A

Conducted Immunity

EN61000-4-6

10 Vrms

Perf. Criteria A

NOTES

1. Input Source Impedance: These converters will operate under all listed specifications without external components assuming that the source voltage has

very low impedance and reasonable input voltage regulation. Highly inductive source impedances can affect the stability of the converter. Since real

world voltage sources have finite impedance, performance can be improved by adding an external filter capacitor. We recommend Nippon chemi-con KY

series, 100μF/100V.

2. (1) Multiple DCHB200 series modules can be synchronized together simply by connecting the module SYNC pins together. Care should be taken to

ensure the ground potential differences between the modules are minimized.

(2) In this configuration all of the modules will be synchronized to the highest frequency module.

(3) Up to three modules can be synchronized using this technique.

(4) More relevant information in the application notes.

3. Maximum output deviation is +10% inclusive of remote sense and trim. If remote sense is not being used the +SENSE should be connected to its

corresponding +OUTPUT and likewise the -SENSE should be connected to its corresponding –OUTPUT.

4. (1) Thermal test conditions for vertical direction are by natural convection (20LFM).

(2) The iron base-plate dimensions are 19” x 3.5” x 0.063” (the height is EIA standard 2U).

(3) Heat sink is optional. See the “Model Number Setup” table on page 7 for suffix options.

5. The DCHB200 standard models (without assembly options) can only meet EN55022 Class A or Class B with external components added.

6. An external input filter capacitor is required if the module has to meet EN61000-4-4, EN61000-4-5. We recommend connecting two aluminum electrolytic

capacitors (Nippon chemi-con KY series, 220μF/100V) in parallel.

7. Output voltage is adjustable for 10% trim up or -20% trim down of nominal output voltage by connecting a single resistor between TRIM and +SENSE pins

8. CASE GROUNDING: EMI can be reduced when you connect the four screw bolts to the shield plane.

9. This series comes with several different options: negative remote on/off control, heatsinks, case pin, sync pin, pin length, terminal block, and thru-hole

inserts. See the “Model Number Setup” table on page 7 for more ordering information.

CAUTION:

This power converter is not internally fused. An input line fuse must always be used.