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REVISION: September 30, 2016 V04

CHB300W-110S SERIES

Railway 300 WATT 4:1 INPUT

DC-DC CONVERTERS

Preliminary

FEATURES

* 300W Isolated Output

* Efficiency to 90%

* Low No Load Power Consumption

* Fixed Switching Frequency

* 4:1 Input Range

* Regulated Outputs

* Input Under-Voltage Protection

* Over Temperature Protection

* Over Voltage/Current Protection

* Remote ON/OFF

* Low No Load Power Consumption

* Half-Brick Size Meet Industrial Standard

* Safety Meet UL60950-1

* Meet EN50155 With External Circuits

* Meet Shock & Vibration: EN 50155 (EN 61373)

* Fire & Smoke meet EN45545-2

* 3000m Operating Altitude

MODEL

NUMBER

INPUT OUTPUT

VOLTAGE VOLTAGE

CHB300W-110S05 43-160 VDC

OUTPUT

CURRENT

INPUT CURRENT

MIN. MAX. NO LOAD FULL LOAD

5 VDC 0 mA 60 A 10 mA 3099 mA

% EFF.

(2)

88

CAPACITOR

LOAD MAX.

10000uF

CHB300W-110S12 43-160 VDC 12 VDC 0 mA 25 A 10 mA 3030 mA 90 8800uF

CHB300W-110S24 43-160 VDC

CHB300W-110S28 43-160 VDC

24 VDC 0 mA 12.5 A

28 VDC 0 mA 10.7 A

10 mA

10 mA

3064 mA

3064 mA

89

89

4700uF

3300uF

CHB300W-110S48 43-160 VDC 48 VDC 0 mA 6.25 A

NOTE:

1. Nominal input voltage 110 VDC

2.

Measure at Nominal Input Voltage.

10 mA 3064 mA 89

2200uF

Remote On/Off Control

ON/OFF (2)

HIGH SIGNAL HERE

DISABLE OUTPUT

-VIN (4)

External Output Trim

+SENSE (8) +SENSE (8)

TRIM DOWN

TRIM (7)

TRIM UP

-SENSE (6)

TRIM (7)

-SENSE (6)

10K ohms

TRIMPOT

1

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REVISION: September 30, 2016 V04

SPECIFICATIONS

All Specifications Typical At Nominal Line, Full Load, and 25℃ Unless Otherwise Noted

INPUT SPECIFICATIONS:

Input Voltage Range ....……………........…110V.................... 43-160V

GENERAL SPECIFICATIONS:

Efficiency .................…..................................……..........…....... See Table

Under Voltage Lockout ………...110Vin power up ..………. 42V

110Vin power down………. 38V

Positive Logic Remote ON/OFF (see note 4 & 5)

Input Filter ………………………………………………..….……... Pi Type

OUTPUT SPECIFICATIONS:

Voltage Accuracy .......................................………….......... ±1.0% max.

Transient Response:25% Step Load Change

Recover Time ………………………………..…………. <250μs

External Trim Adj. Range ……………………………………….…… ±10%

Ripple & Noise, 20MHz BW (note3)

5V………….………..…….60mV RMS, 120mV pk-pk max.

12V………….…………….80mV RMS, 150mV pk-pk max.

24V………………….…..120mV RMS, 240mV pk-pk max.

28V…………………...…140mV RMS, 280mV pk-pk max.

48V………..…………….220mV RMS, 480mV pk-pk max.

Temperature Coefficient ....................….....................…..... ±0.02%/°C

Short Circuit Protection .........………………......................... Continuous

Line Regulation (note1) ……...........................................…. ±0.2% max.

Load Regulation (note2) ……............….............................. ±0.2% max.

Over Voltage Protection Trip Range, % Vo nom. .................. 115 - 140%

Current Limit .................………… 110% - 160% Nominal Output

Start up time …………………………………………………….. 60mS typ.

CASE HB

All Dimensions In Inches(mm)

Output/Case ………………… 500VAC min.

Isolation Resistance ..............................…...................…….... 10 7 ohm min.

Isolation Capacitance …………………...…………………………. 1500pF typ.

Switching Frequency ........…………………...........…………... 300KHz typ.

Operating Case Temperature ...………...........…......……........... -40℃ to 100℃

Storage Temperature …………………......……..….….............. -55℃ to +105℃

Thermal Shutdown Case Temp..…...……………………..…...……. 110℃ typ.

Humidity .............................................. 95% RH max. Non condensing.

MTBF ………. MIL-STD-217F, GB, 25℃, Full Load ..………………TBD.

S a f e t y … … …… …… … .… …M e e t U L 6 095 0 -1 2 n d ( B a s i c I ns u l a t i o n ) .

EMC (note7) …………… Meet EN50155(EN50121-3-2) with External Filter.

Shock/Vibration ……………………..…………… Meet EN50155(EN61373).

Environmental ………………………….……… Meet EN50155(EN60068-2-1).

Fire & Smoke……………………………………………………Meet EN45545-2

Dimensions ............................. 2.28×2.40x0.50 inches (57.9x61.0×12.7 mm)

Case Material .....................…........... Aluminum Baseplate with Plastic Case.

W e i g h t … … … … … … … … . . … … … … … … … … … … … … … … … … … … … 1 1 4 g

NOTE:

1. Measured from high line to low line.

2. Measured from full load to zero load.

3. Output ripple and noise measured with 10uF aluminum solid capacitor and 1uF ceramic capacitor across output.

4. Logic Compatibility ……………........................ Open Collector ref to -Input

Module ON ……….………... >3.5Vdc to 160Vdc or Open Circuit

Module OFF ……………….………………………..…...0 to <1.2Vdc

5. Suffix "N" to the model number with negative logic remote on/off

Module ON ………………………………………………. 0 to <1.2Vdc

Module OFF ……………….. >3.5Vdc to 160Vdc or open circuit

6. An external input capacitor 220uF for all models are recommended to reduce input ripple voltage

7. Design meet EN50155 and RIA12 refer to application note.

Mounting Inserts

M3*0.5 Through 4pl.

BOTTOM VIEW

0.18 min

[4.6]

0.50

[12.7]

2

1

4

3

5

6

7

8

9

Pin

1

2

3

4

5

6

7

8

9

Function

+V Input

On/Off

NP

-V Input

-V Output

-Sense

Trim

+Sense

+V Output

1.90

[48.3]

2.28

[57.9]

2