SLC100-3 datasheet, PDF - EEWORLD Datasheet

Corporate: www.cdtechno.com

OBSOLETE PRODUCT

SLC100

40 Amp Single

Output Quarter

Brick DC/DC

Converter

Contact factory for replacement model

●

Industry Standard Footprint & Size -

2.28” x 1.45”

●

High Efﬁciency

●

Wide Input Voltage Range: 36 – 75VDC

●

Output Voltages: 1.0V,1.2 V, 1.5V,

1.8V, 2.0V, 2.5V, 3.3V, 5.0V & 12V

●

Output VoltageTrim Function

●

Remote Sense for output compensation

●

Remote ON/OFF control referenced to

input side (Positive or Negative Logic)

●

Output Current Limit

●

No Minimum Load Requirement

●

SMD Models with Position Perfect

TM

Interconnects

●

Isolation Voltage of 2000 VDC

●

Fixed Frequency Operation

●

UL/CUL 60950 recognized (US & Canada),

basic insulation rating

●

Meets TNV-SELV Isolation Requirements

●

Meets Conducted Emissions Requirements

of FCC Class B and EN55022 Class B

with External Filter

●

No Heatsink Required

●

Thermal Shutdown

●

Input Undervoltage Lockout

The SLC100 Series is a 40 Amp single

output, low-proﬁle DC-DC converter in

an industry standard package of 2.28” x

1.45” x 0.40”. The SLC100 uses unique

proprietary technologies to deliver ultra-

high efﬁciencies and excellent thermal

performance. It includes extensive

control and protection features for

maximum ﬂexibility and provides a

versatile solution for a whole range of

applications with its input voltage range of

36-75 VDC and output voltages between

1.0VDC and 12.0VDC.

The power dissipation of the SLC100

series is so low that a heat sink is not

required. Thermal derating curves are

provided indicating maximum allowable

output current versus airﬂow and ambient

temperature. The product features fast

dynamic response characteristics and low

output ripple critical for low voltage

applications. SLC DC-DC converter

modules are certiﬁed to UL/CUL 60950,

and VDE to EN60950. It meets CISPR22/

EN55022/FCC15J Class B specs for EMI

levels with external ﬁltering.

This high quality and highly reliable

product is competitively priced and an ideal

solution for distributed power, telecoms

and datacom applications.

PRODUCT SELECTION CHART

NOMINAL

INPUT

VOLTAGE

(V

DC

)

48

RATED

OUTPUT

VOLTAGE

(V

DC

)

1.0

1.2

1.5

1.8

2.0

2.5

3.3

5.0

12.0

OUTPUT CURRENT

MIN

RATED

LOAD(A)

OUTPUT (A)

1

0.0

40

0.0

40

30

20

8.3

INPUT

CURRENT

AT RATED LOAD (A)

(48Vin)

TBD

1.80

2.20

TBD

EFFICIENCY

(%)

TYPICAL

TBD

80

82

TBD

MODEL

SLC100

* Note 1: Maximum output current for SMD Models is 25A.

Product: www.cdpoweronline.com

SLC100 Rev B 5/2004

1

ABSOLUTE MAXIMUM RATINGS, ALL MODELS

PARAMETER

Input Voltage-Operating

Operating Ambient Temperature

Storage Temperature

Output Short Circuit Duration

Lead Temperature (Soldering, 10 sec max)

CONDITIONS

Continuous

Transient (100 mS)

MIN

TYP

MAX

75

TBD

UNITS

V

DC

V

DC

°C

-40

Continuous

+100

+125

+300

COMMON ELECTRICAL SPECIFICATIONS, ALL MODELS

Speciﬁcations are at T

A

= +25°C, Airﬂow = 300LFM (1.5m/s) at nominal input voltage unless otherwise speciﬁed.

PARAMETER

INPUT

CONDITIONS

MIN

36

2000

TYP

48

MAX

75

UNITS

V

DC

V

DC

COMMON ELECTRICAL SPECIFICATIONS

Voltage Range

ISOLATION

Input/Output Isolation Voltage

Capacitance

Resistance

FEATURES

Turn On Time

Remote Sense Compensation

Output Voltage Trim Range

Output Over Voltage Protection

Output to within 1% of Vnom

Input to Output

2000

10

5.00

-10

+120

5

+10

+140

TBD

31.50

32.50

0

32.50

33.70

2.2

pF

M

W

mS

% of V

NOM

% of V

NOM

% of V

NOM

°C

V

DC

V

DC

V

DC

mA

Over Temperature Shutdown

Shutdown

Turn On

Input Under Voltage Protection

Turn Off

Lockout Hysteresis Voltge

ON/OFF Logic Function

Logic Low Ion/off

Logic Low Von/off

Logic High Ion/off

Logic High Von/off

GENERAL

Switching Frequency

MTTF (per Telcordia TR-NWT-000332)

TBD

200

KHz

Hrs

Open

Collector

TBD

0.8

TBD

V

DC

μA

V

DC

2

MECHANICAL (THROUGH HOLE)

PIN FUNCTIONS

1

2

3

4

5

6

7

8

+Vin

Remote On/Off

-Vin

-Vout

- Sense

Trim

+ Sense

+Vout

NOTES:

General Tolerance;

±

.015

Pin Locations/Diameters:

±

.005

Dimensions are in inches

[Millimeters]

Pin material: Copper

Pin Finish: Matte Tin over Nickel

Converter weight: [30.8g]

UL/TUV Standards require a clearance

greater than 0.06” between input and

output for Basic insulation. This should be

considered if copper traces are used on

the top side of the board under the con-

verter unit. Ferrite cores are considered

part of the input/primary circuit.

MECHANICAL (SMT)

Interconnect FUNCTIONS

1

2

3

4

5

6

7

8

+Vin

Remote On/Off

-Vin

-Vout

- Sense

Trim

+ Sense

+Vout

NOTES:

General Tolerance;

±

.015

Interconnect Locations/

Diameters:

±

.005

Dimensions are in inches

[Millimeters]

Pin material: Copper

Pin Finish: Matte Tin over Nickel

Converter weight: [30.8g]

UL/TUV Standards require a clearance

greater than 0.06” between input and

output for Basic insulation. This should be

considered if copper traces are used on

the top side of the board under the con-

verter unit. Ferrite cores are considered

part of the input/primary circuit.

* Interconnect co-planarity within 0.004”

SLC100 Rev B

5/2004

3

ORDERING INFORMATION

MODEL NUMBER

SLC100 - 1

SLC100 - 2

SLC100 - 3

SLC100 - 4

SLC100 - 5

SLC100 - 6

SLC100 - 7

SLC100 - 8

SCL100 - 9

SLC100 - 10

SLC100 - 11

SLC100 - 12

SLC100 - 13

SLC100 - 14

SLC100 - 15

SLC100 - 16

SLC100 - 17

SLC100 - 18

Vout (Vdc)

1.0

1.2

1.5

1.8

2.0

2.5

3.3

5.0

12.0

1.0

1.2

1.5

1.8

2.0

2.5

3.3

5.0

12.0

PINOUT

Through Hole

SMD

LOGIC

Positive

MODEL NUMBER

SLC100 - 19

SLC100 - 20

SLC100 - 21

SLC100 - 22

SLC100 - 23

SLC100 - 24

SLC100 - 25

SLC100 - 26

SCL100 - 27

SLC100 - 28

SLC100 - 29

SLC100 - 30

SLC100 - 31

SLC100 - 32

SLC100 - 33

SLC100 - 34

SLC100 - 35

SLC100 - 36

Vout (Vdc)

1.0

1.2

1.5

1.8

2.0

2.5

3.3

5.0

12.0

1.0

1.2

1.5

1.8

2.0

2.5

3.3

5.0

12.0

PINOUT

Through Hole

SMD

LOGIC

Negative

4

APPLICATION NOTES

When using remote sense with dynamic loads, the

transient response at the point of load may be limited

by the inductance present in the power lines. Severe

load steps may require the addition of a capacitor C

L

across the output lines. When the load demands an

immediate increase in load current, this capacitor helps

to supply a portion of the current and reduces the bur-

den on the converter.

When the load is physically distanced from the con-

verter, the inductance of the power leads, and any by-

pass conductance at the load, can result in increased

phase shift in the converter’s feedback loop, causing

instability. This situation can be eliminated by inserting

bypass capacitors (C

B

) from the outputs to the sense

leads directly at the output pins. These capacitors de-

couple any AC on the power lines and assure that only

the DC voltage is sensed.

If remote sensing is not desired then +Sense and

-Sense must be tied to their respective outputs for

proper operation.

C

L

Remote Sense

The remote sense feature of the SLC100 can be used

to compensate for voltage drops in the output power

lines by sensing output voltage directly at the point of

load. To enable this feature, connect the +Sense and

–Sense pins to the +Vout and –Vout pins, respectively,

at the point in the circuit where the tightest regulation

is required (Figure

1).

The sense leads conduct very

little current compared with the power leads and there-

fore provide a more accurate indication of load voltage

for regulation purposes. This enables the converter to

increase (or decrease) its output voltage to compensate

for any load distribution losses, allowing for a more

precise load voltage. Refer to the product data sheet

for the maximum output voltage compensation range of

+ Vin

+ Vout

+ Sense

C

B

Load

C

B

•

ON/OFF

SLC100

(Top View)

Trim

-

Sense

Output Voltage Trim

The SLC100’s output voltage may be adjusted high or

low by an amount indicated on the product data sheet.

As shown in

Figure 2,

to raise the converter’s output

voltage a resistor must be placed between the Trim pin

and +Vout pin.

- Vin

- Vout

Figure 1 – Remote Sensing

In general, the line resistance, or load drop, between

the output pins of the converter and load should be

minimized. Using remote sense, a large line resistance,

with a regulated load voltage, will result in a higher

output voltage at the output of the DC/DC Converter. To

prevent exceeding the converter’s output power limits,

a higher output voltage will require a reduction in the

maximum allowable output current in accordance with

the voltage/current power relationship. To minimize

the line resistance between the converter and the load,

the converter should be placed as close to the load as

possible. Line resistance can further be decreased by

using heavy gauge wire or by increasing the cross sec-

tional area of the PC board traces.

+ Vin

+ Vout

+ Sense

R

T

Load

ON/OFF

SLC100

(Top View)

Trim

-

Sense

- Vin

- Vout

Figure 2 – Trim Up Circuit

SLC100 Rev B

5/2004

5

SLC100-3

SLC100-3 Overview

Preview

Recommended Resources