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Eighth-Brick Series

Single output

DC/DC CONVERTERS

•

High Current, High Efficiency, Low Profile

NEW Product

Ultra-high efficiency topology

Industry standard eighth brick footprint (identical to quarter-brick pinout)

Low profile through-hole version

Low profile with 38% space savings over other quarter-brick brick converters

Wide ambient temperature range, -40 ºC to +85 ºC

80% to 110% output trim

Monotonic start-up in normal and prebiased loads

Basic insulation system

Overvoltage and overtemperature protection

Secondary side control, no optocouplers,

fast transient response

•

100 V, 100 ms input voltage transient rated

•

Available RoHS compliant

This is a new high efficiency, open-frame, low profile, single board, isolated dc-dc

converter series in an industry standard eight-brick footprint that provides up to 100 W of

output power. The series delivers very high output current at low voltages, and excellent

useable power for today’s high performance applications. The series features an input

voltage range of 18 Vdc to 36 Vdc and 36 Vdc to 75 Vdc and is available with output voltages of

1.2 V, 1.5 V 1.8 V, 2.5 V, 3.3 V and 5.0 V. The output voltage is adjustable from 80% to 110% of

the nominal value. The series also has a remote ON/OFF capability. Overcurrent, overvoltage and

overtemperature protection features are included as standard. Full international safety approval

including EN60950-1 VDE and UL/cUL60950, reduces compliance costs and time to market.

All specifications are typical at nominal input, full load at 25 °C ambient unless otherwise stated

Patent No. 6,765,810

Other Patents Pending

2 YEAR WARRANTY

SPECIFICATIONS

OUTPUT SPECIFICATIONS

Voltage adjustability

Minimum load

Overshoot

Undershoot

Transient response

(See Note 1)

INPUT SPECIFICATIONS

Input voltage range

Input current

24 V nominal

48 V nominal

No load

Remote OFF

18-36 Vdc

36-75 Vdc

50 mA

5 mA

Open collector ref to -input

Open circuit or >2.4 Vdc

<0.4 Vdc

down

17.5

16.5

35.5

33.5

V (typ.)

At turn-on and turn-off

80% to 110%

None

60 mV to 150 mV typ. deviation

20 µs recovery

EMC CHARACTERISTICS

Immunity:

ESD air enclosure

Radiated field enclosure

Conducted

Input transients

EN61000-4-2 8 kV/6 kV(O/P within spec.)

EN61000-4-3 10 V/m (O/P within spec.)

EN61000-4-6 10 V

(O/P within spec.)

100 V, 100 ms

GENERAL SPECIFICATIONS

Basic insulation

Switching frequency

Approvals and

standards

Material flammability

Weight

MTBF

Input/output

Fixed

(See Note 3)

2250 Vdc

480 kHz

EN60950-1 VDE

UL/cUL 60950

UL94V-0

21 g (0.73 oz)

Telcordia Tech SR-332 4,034,120 hours

Active high remote ON/OFF

Logic compatibility

OFF

Undervoltage Lockout

24 Vin

48 Vin

48 Vin Start-up time

(See Note 2)

Power

ENVIRONMENTAL SPECIFICATIONS

Thermal performance

Operating ambient.

temperature

Non-operating

-40 °C to +85 °C

-55 °C to +125 °C

PROTECTION

Shortcircuit

Overvoltage

Thermal

Continuous

Non-latching

125 ºC hot spot temperature with

automatic recovery

Power up

Remote ON/OFF

15 ms (typ.)

International Safety Standard Approvals

UL/cUL CAN/CSA 22.2 No. 60950-00 : UL 60950

File No. E135734/60950

VDE Certificate No. 40005017. File No. 10401-3336-0197

CB Report and Certificate to IEC60950, Certificate No. DE1-31103

File Name: eighth_brick.pdf Rev (07): 16 Nov 2005

Eighth-Brick Series

Single output

DC/DC CONVERTERS

High Current, High Efficiency, Low Profile

NEW Product

MODEL

NUMBER

(7,8)

For the most current data and application support visit www.artesyn.com/powergroup/products.htm

INPUT

OUTPUT

VOLTAGE

CURRENT

(MAX.)

(4)

INPUT

RIPPLE

CURRENT

(5)

OUTPUT

CURRENT

(MAX.)

EFFICIENCY

(TYP.)

REGULATION

SET POINT

ACCURACY

(MAX.)

±1.5%

LINE

LOAD

RIPPLE &

NOISE

(pk - pk)

60 mV

35 mV

60 mV

48 Vin VALUE MODELS

1.2 V

1.5 V

1.8 V

2.5 V

3.3 V

5.0 V

1.2 V

1.5 V

1.8 V

2.5 V

3.3 V

5.0 V

2.5 V

3.3 V

5.0 V

1.8 V

3.3 V

0.98 A

1.21 A

1.43 A

1.62 A

2.11 A

1.59 A

1.98 A

1.91 A

2.30 A

1.99 A

2.65 A

2.30 A

3.20 A

2.40 A

4.25 A

100 mA

150 mA

100 mA

150 mA

200 mA

150 mA

50 mA

170 mA

25 A

20 A

10 A

50 A

40 A

25 A

15 A

40 A

30 A

20 A

88%

89.5%

90.5%

90%

91%

92%

86%

88.5%

90%

89.5%

90.5%

91.5%

91%

90.5%

92%

24 Vin MODELS

91%

90%

±0.1%

±0.2%

LES20A24-1V8J

LES20A24-3V3J

±0.1%

±0.2%

LES25A48-1V2J

LES25A48-1V5J

LES25A48-1V8J

LES20A48-2V5J

LES20A48-3V3J

LES10A48-5V0J

LES50A48-1V2J

LES40A48-1V5J

LES40A48-1V8J

LES25A48-2V5J

LES25A48-3V3J

LES15A48-5V0J

LES40A48-2V5J

LES30A48-3V3J

LES20A48-5V0J

48 Vin PERFORMANCE MODELS

48 Vin ULTRA MODELS

Part Number System with Options

LES50A48-1V2RANJ

RoHS Compliance

(7)

J = Pb-free (RoHS 6/6 compliant)

Pin Length Options

Blank = 0.188” (4.78 mm)

N = 0.145” (3.68 mm)

K = 0.110” (2.79 mm)

Body Height, Package Type and Pin Length

A = 0.300” (7.62 mm), Through Hole,

0.188” (4.78 mm) Pins

E = 0.340” (8.64 mm), Through Hole,

0.188” (4.78 mm) Pins

S = Surface Mount

Remote ON/OFF Logic

Blank = Positive

R = Negative

= Low Profile

= 1/8 Brick

Number of outputs

S = Single

Rated Output Current

10 A = 10 Amps, 15 A = 15 Amps etc.

Nominal Rated Input Voltage

24 = 24 Volts (18 Vdc to 36 Vdc range)

48 = 48 Volts (36 Vdc to 75 Vdc range)

Output Voltage

1V2 = 1.2 Volts, 1V5 = 1.5 Volts etc.

Notes

di/dt = 1 A/µs, Vin = 24 or 48 Vdc, Tc = 25 °C, load change = 50% to

75% lo max. and 75% to 50% lo max. Deviation varies by model. For

further details see long form data sheets.

Start-up into resistive load.

This product is only for inclusion by professional installers within other

equipment and must not be operated as a stand alone product.

Recommended input fusing is up to 10 A HRC 200 V rated fuse.

Peak to peak measured with no external Pi filter. Significant reduction

possible with external filter. See Application Note 138 for further details.

Active low Remote ON/OFF is available. Standard product is Active

High. When ordering active low parts, designate with the Suffix ‘R’ e.g.

LES50A48-1V2RAJ.

TSE RoHS 5/6 (non Pb-free) compliant versions may be available on

special request, please contact your local sales representative for details.

NOTICE: Some models do not support all options. Please contact your

local Artesyn representative or use the on-line model number search tool

at http://www.artesyn.com/powergroup/products.htm to find a suitable

alternative.

File Name: eighth_brick.pdf Rev (07): 16 Nov 2005

Eighth-Brick Series

Single output

DC/DC CONVERTERS

High Current, High Efficiency, Low Profile

NEW Product

For the most current data and application support visit www.artesyn.com/powergroup/products.htm

2.30 (58.4)

2.000 (50.80)

0.145

±0.020

(3.68

±0.51)

0.300

(7.62)

0.300

(7.62)

0.040

±0.002

(

1.02

±0.05)

(6 pls)

DIMENSION OPTIONS

OPTION

CLEARANCE

±0.016 (0.41)

HEIGHT

+0.022 (0.56)

-0.030 (0.76)

0.300 (7.62)

0.340 (8.64)

0.90

(22.9)

TOP VIEW

0.150

(3.81)

0.150

(3.81)

HEIGHT

See Option Table

0.030 (0.76)

0.070 (1.78)

0.45

(11.4)

0.062

±0.002

(

1.57

±0.05)

(2 pls)

0.188 (4.78)

CLEARANCE

See Option Table

2.30 (58.4)

2.000 (50.80)

0.145

±0.020

(3.68

±0.51)

0.300

(7.62)

0.300

(7.62)

0.058

±0.008

(

1.47

±0.02)

(6 pls)

Ref IPC-2222 Level B

PIN CONNECTIONS

PIN NUMBER

FUNCTION

+Vin

ON/OFF

-Vin

-Vout

PIN NUMBER

FUNCTION

-Sense

Trim

+Sense

+Vout

0.90

(22.9)

0.150

(3.81)

0.150

(3.81)

Dimensions in Inches (mm)

Tolerances (unless otherwise specified)

x.xx

±0.02

(x.x

±0.5)

x.xxx

±0.010

(x.xx

±0.25)

0.45

(11.4)

0.080

±0.008

(

2.03

±0.02)

(2 pls)

Ref IPC-2222 Level B

RECOMMENDED HOLE PATTERN

Through-hole Mechanical Drawing, Dimension Options and Pinout Table

2.30

(58.4)

0.057±0.020

(1.45±0.51)

2.186

(55.52)

0.055 (1.40) x 0.105 (2.67)

(7 pls)

0.150

(3.81)

0.90

(22.9)

0.300

(7.62)

0.300

(7.62)

TOP VIEW

0.450±0.020

(11.43±0.51)

0.150

(3.81)

PIN CONNECTIONS

HEIGHT

0.28 (7.1)

PIN NUMBER

CLEARANCE

0.015 (0.38)

ø0.080±0.008

(ø2.03±0.02)

(2 pls)

Ref IPC-2222 Level B

2.30

(58.4)

2.186

(55.52)

0.057±0.020

(1.45±0.51)

TOP VIEW

0.300

(7.62)

0.145±0.020

(3.68±0.51)

2.000

(50.80)

0.067(1.70) x 0.118(3.00)

(8 pls)

FUNCTION

+Vin

ON/OFF

-Vin

-Vout

PIN NUMBER

FUNCTION

-Sense

Trim

+Sense

+Vout

ø0.058±0.008

(ø1.47±0.02)

(6 PLS)

Ref IPC-2222 Level B

0.150

(3.81)

Lead coplanarity within 0.006 [0.15] MAX

0.90

(22.9)

0.300

(7.62)

0.450±0.020

(11.43±0.51)

0.150

(3.81)

Dimensions in Inches (mm)

Tolerances (unless otherwise specified)

x.xx

±0.02

(x.x

±0.5)

x.xxx

±0.010

(x.xx

±0.25)

Surface-mount Mechanical Drawing and Pinout Table

The information and specifications contained in this datasheet are believed to be correct at time of publication. However, Artesyn Technologies accepts no responsibility for consequences arising

from printing errors or inaccuracies. The information and specifications contained or described herein are subject to change in any manner at any time without notice. No rights under any patent

accompany the sale of any such product(s) or information contained herein.

Please consult our website for the following items:

✔

Application Note

✔

Longform Data Sheets

www.artesyn.com

File Name: eighth_brick.pdf Rev (07): 16 Nov 2005

Eighth-Brick Series | 100 W DC-DC

High Efficiency, High Current, Low Profile DC-DC Converters

EIGHTH-BRICK SERIES

Single Output Ultra Products

High efficiency topology and high output current

Low profile, 0.300 in (7.62 mm) height

Industry standard eighth-brick footprint (identical to quarter-brick pinout)

38% savings in space over industry standard quarter-brick converters

Wide operating ambient temperature range, -40 °C to +85 °C

80% to 110% output trim

Basic insulation, 2250 Vdc

Overvoltage and overtemperature protection

Remote ON/OFF

Approvals to EN60950-1 VDE and UL/cUL60950

100 V, 100 msec input voltage transients rated

Monotonic startup into normal and prebiased loads

Secondary side control, no optocouplers, fast transient response

Available RoHS compliant

The Eighth-Brick Ultra series is a new

100 W, low cost, high efficiency, open

frame, isolated converter in an industry

standard eighth-brick footprint and

operates from a 36 Vdc to 75 Vdc supply.

This new series elevates the power density

threshold for high-end application design

requirements where high output current at

low voltages are required. The converter

architecture takes advantage of open-

frame construction to provide low mass

and a low thermal impedance for a single

board design.

Additionally, a patent pending, full wave

coupled inductor topology yields some of

the highest full load efficiencies in the

industry. All Eighth-Brick converters have,

as standard features, remote ON/OFF

capability, adjustable output voltage trim

from 80% to 110% of nominal, over-

current/under-voltage protection, and full

international safety approval including

EN60950-1 VDE and cUL60950.

Patent No. 6,765,810

Other Patents Pending

[ 2 YEAR WARRANTY ]

File Name: lf_eighth_brick_100w_ultra.pdf Rev (04): 15 Nov 2005

SXA10

Eighth-Brick Series |

Series |

W DC-DC

100

10W DC/DC

High Efficiency, High Current, Low Profile DC-DC Converters

Stresses in excess of the maximum ratings can cause permanent damage to the device. Operation of the device is not implied at these or any

other conditions in excess of those given in the specification. Exposure to absolute maximum ratings can adversely affect device

reliability.

Absolute Maximum Ratings

Characteristic

Input voltage - continuous

Input voltage - peak/surge

Input voltage - remote pin

Operating temperature

Storage temperature

Symbol

Vin (cont)

Vin (peak)

Vrem (peak)

Top

Tstorage

Min

-0.3

-40

-55

Typ

Max

100

125

100

Units

Vdc

˚C

Notes and Conditions

Vin(+) - Vin(-)

Transients of 100 ms or less,

in duration

Peaks of any duration

Measured at ambient

Output power (LES40A48-2V5J) Pout (max)

Output power (LES30A48-3V3J) Pout (max)

Output power (LES20A48-5V0J) Pout (max)

All specifications are typical at nominal input Vin = 48 V and full rated resistive load at 25

˚C

ambient unless otherwise specified.

Input Characteristics

Characteristic

Input voltage - operating

Input current - no load

Input current - Quiescent

Inrush current (i

Inrush current ratio

Input ripple rejection

Input fuse

Symbol

Vin (oper)

lin

lin (off)

linrush

It/Im

Min

Typ

Max

0.01

Units

Vdc

mAdc

Frequency <1 kHz

Slow Blow/Antisurge HRC

recommended 200 V Rating.

See Application Note 138

Vin (min) - Vin (max), enabled

Converter disabled

Notes and Conditions

Turn On/Off

Characteristic

Input voltage - turn on

Input voltage - turn off

Turn on delay - enabled,

then power applied

Symbol

Vin (on)

Vin (off)

Tdelay

(power)

Min

Typ

35.5

33.5

Max

Units

Vdc

With the Remote ON/OFF signal

asserted, time from when Vin >

Vin (oper) until Vout is within

total regulation band

With Vin = Vin (nom), then

Remote ON/OFF asserted,

time until Vo is within total error

band

From 10% to 90%, full resistive

load, no external capacitance

Notes and Conditions

Turn on delay - power

applied, then enabled

Tdelay

(enable)

Rise time

Trise

File Name: lf_eighth_brick_100w_ultra.pdf Rev (04): 15 Nov 2005