XRSB-50R080 [BEL]

ISOLATED DC/DC CONVERTERS; 隔离式DC / DC转换器


型号：	XRSB-50R080
厂家：	BEL FUSE INC.
描述：	ISOLATED DC/DC CONVERTERS 隔离式DC / DC转换器转换器
文件：	总7页 (文件大小：186K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

ISOLATED DC/DC CONVERTERS

24 Vdc Input

8 Vdc / 5 A Output

1/16 Brick

xRSB-50R08x

RoHS Compliant

Rev.A

•

Isolated

•

Input Under Voltage Lockout

Output Over Voltage Shutdown

OCP/SCP

Fixed Frequency (600 kHz)

High Efficiency

High Power Density

Low Cost

Over Temperature Protection

Remote On/Off (option)

Output Voltage Trim

Basic Insulation

Positive/Negative Remote Sense

Through Hole and SMT (option)

Description

The xRSB-50R08x series are isolated dc/dc converters that operate from a nominal 24 Vdc source. These units

will provide up to 40 W of output power from a nominal 24 Vdc input. These units are designed to be highly

efficient and low cost. Features include remote on/off, over current protection and under voltage lockout. These

converters are provided in an industry standard sixteenth brick package.

Part Selection

Output

Input

Max. Output

Current

Max. Output

Power

Typical

Efficiency

Model Number

Active Low

Model Number

Active High

Voltage

8 V

18 V - 36 V

5 A

40 W

90%

xRSB-50R08L

xRSB-50R080

Notes: 1. Add “G” suffix at the end of the model number to indicate Tray Packaging. Replace”x” with “S” to

indicate SMT package, or “0” to indicate through hole package.

2. All part numbers above indicate RoHS 6. Change the second letter "R" to "7" for RoHS 5 part numbers.

Absolute Maximum Ratings

Parameter

Input Voltage (continuous)

Remote On/Off

Min

-0.3 V

Typ

Max

40 V

Notes

18 V

I/O Isolation Voltage

Ambient Temperature

Storage Temperature

1500 V

-40 °C

-55 °C

85 °C

125 °C

Input Specifications

Parameter

Input Voltage

Min

18 V

Typ

24 V

Max

36 V

3.5 A

Notes

Input Current (full load)

Input Current (no load)

Remote Off Input Current

80 mA

1 mA

160 mA

3 mA

Tested with simulated source impedance of

15 uH, 5 Hz to 20 MHz; use a 100 uF/100 V

electrolytic capacitor with ESR=1 ohm max at

200 kHz at the input.

Input Reflected Ripple Current (pk-pk)

20 mA

50 mA

Input Reflected Ripple Current (rms)

3 mA

7 mA

I²t Inrush Current Transient

Turn On Voltage Threshold

Turn Off Voltage Threshold

0.01 A²s 0.02 A²s

17 V

16 V

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

Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com

ISOLATED DC/DC CONVERTERS

24 Vdc Input

8 Vdc / 5 A Output

1/16 Brick

Output Specifications

Parameter

Min

Typ

Max

Notes

Output Voltage Set Point

Line Regulation

7.88 V

8 V

8.12 V

Vin=24 V; Io=50% load

±5 mV

±20 mV

±10 mV

±35 mV

5 A

Load Regulation

Regulation Over Temperature(-40 °C to +85 °C)

Output Current

0 A

6 A

Current Limit Threshold

Short Circuit Surge Transient

7.5 A

0.5 A²s

9 A

1 A²s

Tested at 0-20 MHz BW,

with a 1 uF ceramic

capacitor and a 10 uF

Tantalum capacitor at the

output.

Ripple and Noise (rms)

Ripple and Noise (pk-pk)

10 mV

40 mV

20 mV

75 mV

Turn on Time

24 mS

50 mS

Overshoot at Turn on

Output Capacitance

Transient Response

100 uF

680 uF

Overshoot

150 mV

120 uS

150 mV

120 uS

250 mV

250 uS

250 mV

250 uS

25% ~ 50%

Max Load

Test conditions: di/dt = 0.1

A/uS, Vin=24 V, with a 1

uF ceramic capacitor and

a 10 uF Tantalum

Settling Time

Vo=8 V

Overshoot

50% ~ 25%

Max Load

capacitor at the output.

Settling Time

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

General Specifications

Parameter

Min

Typ

Max

Notes

Efficiency

87%

90%

Vin=24 V; Io=Io, max; full load

Switching Frequency

540 kHz

600 kHz

660 kHz

Isolation Capacitance

3900 pF

Output Voltage Trim Range

Over Temperature Protection

90% Vo

120 °C

110% Vo

140 °C

Test conditions: Vin=24 V, full load and

short the feedback optocoupler.

Calculated Per Bell Core SR-332 (IO =

Nominal; Ta = 25 °C)

Over Voltage Protection

130% Vo

TBD

140% Vo

MTBF

Dimensions

Inches (L × W × H)

Millimeters (L × W × H)

SMT Package

1.3 x 0.9 x 0.334

33.0 x 22.9 x 8.49

Dimensions

Inches (L × W × H)

Millimeters (L × W × H)

Through Hole Package

1.3 x 0.9 x 0.378

33.0 x 22.9 x 9.60

Weight

13 g

Note: All specifications are typical at 25 °C unless otherwise stated.

Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com

ISOLATED DC/DC CONVERTERS

24 Vdc Input

8 Vdc / 5 A Output

1/16 Brick

Control Specifications

Parameter

Min

Typ

Max

Notes

Remote On/Off

Signal Low (Unit On)

-0.3 V

2.95 V

-0.3 V

2.95 V

0 mA

0.8 V

18 V

0.8 V

18 V

1 mA

Active Low

When Remote On/Off pin is

open, for active low option, unit

is off; for active high option, unit

is on

Signal High (Unit Off)

Signal Low (Unit Off)

Signal High (Unit On)

Current Sink

Active High

Output Trim Equations

Equations for calculating the trim resistor are shown below. The Trim Down resistor should be connected

between the Trim pin and Ground pin. The Trim Up resistor should be connected between the Trim pin and the

Vout. Only one of the resistors should be used for any given application.

Vout

511

Module

Trim

GND

Rtrimdown =

−10.22

[kΩ

]

Rtrimdown

Rtrimup

delta

Vout

Trim

GND

(100+ delta)⋅Vo ⋅5.11−626

1.225⋅ delta

Rtrimup =

−10.22[kΩ

]

Note：

(

Vo _ req −Vo

)

[ ]

×100 %

delta =

Vo_req=Desired (trimmed) output voltage[V]

Output voltage Vo=8.003 V

Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com

ISOLATED DC/DC CONVERTERS

24 Vdc Input

8 Vdc / 5 A Output

1/16 Brick

Efficiency Data

90%

85%

80%

75%

70%

65%

60%

55%

18V

24V

36V

50%

0.5A

1.25A

2.5A

3.75A

OUTPUT CURRENT (A)

Thermal Derating Curve

Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com

ISOLATED DC/DC CONVERTERS

24 Vdc Input

8 Vdc / 5 A Output

1/16 Brick

Ripple and Noise Waveform

24 Vdc input, 1.2 V output

Note: Ripple and noise at full load, with a 1uF ceramic cap and a 100 uF Tantalum cap at output, Ta=25 deg C.

Transient Response Waveforms

Vout=8.0 V 50% to 25% Load Transients

Vout=8.0 V 25% to 50% Load Transients

Note: Transient Response at Vin=48 V, di/dt=0.1A/uS, external 100 uF Tantalum cap and 1uF Ceramic cap,

Ta=25 deg C.

Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com

ISOLATED DC/DC CONVERTERS

24 Vdc Input

8 Vdc / 5 A Output

1/16 Brick

Mechanical Outline

SMT Package

Pin Connections

Function

Vin (+)

Remote On/Off

Vin (-)

Vout-

Remote Sense (-)

Trim

Remote Sense (+)

Vout (+)

Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com

ISOLATED DC/DC CONVERTERS

24 Vdc Input

8 Vdc / 5 A Output

1/16 Brick

Through Hole Package

Pin Connections

Function

Vin (+)

Remote On/Off

Vin (-)

Vout-

Remote Sense (-)

Trim

Remote Sense (+)

Vout (+)

RoHS Compliance

Complies with the European Directive 2002/95/EC, calling for the elimination of lead and

other hazardous substances from electronic products.

CORPORATE

FAR EAST

EUROPE

Bel Fuse Inc.

Bel Fuse Ltd.

Bel Fuse Europe Ltd.

206 Van Vorst Street

Jersey City, NJ 07302

Tel 201-432-0463

Fax 201-432-9542

www.belfuse.com

8F/ 8 Luk Hop Street

San Po Kong

Kowloon, Hong Kong

Tel 852-2328-5515

Fax 852-2352-3706

www.belfuse.com

Preston Technology Management Centre

Marsh Lane, Suite G7, Preston

Lancashire, PR1 8UD, U.K.

Tel 44-1772-556601

Fax 44-1772-888366

www.belfuse.com

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