07CR-15T08LG--Datasheet/数据表在线中文翻译

ISOLATED DC/DC CONVERTERS

48V Input 8V/15A Output, 1/8 Brick

07CR-15T Series

PRELIMINARY

•

Isolated

•

Input Under Voltage Lockout

Output Overvoltage Shutdown

OCP/SCP

High Efficiency

High Power Density

Fixed Frequency

Remote On/Off

Low Cost

Thermal Shutdown

Description

The 07CR-15T Series are isolated DC/DC converters that operate from a nominal 48V source. These converters

are intended to provide isolation and step down to generate an intermediate bus for the purpose of powering

non-isolated Point-of-Load (POL) converters. These units will provide up to 130W of output power from a

nominal 48V input. These units are designed to be highly efficient and very low cost and are thus unregulated.

The downstream POL converters will provide the precise regulation required by the load. Features include

remote on/off, over current protection and undervoltage lockout. These converters are provided in an industry

standard eighth-brick package.

Part Selection

Output

Input

Max. Output

Current

Max. Output

Power

Typical

Efficiency

Model Number

Active High

Model Number

Active Low

Voltage

8V

36V-75V

15A

130W

95%

07CR-15T08H

07CR-15T08L

Note: Add “G” suffix at the end of the model number to indicate Tray Packaging.

Absolute Maximum Ratings

Parameter

Min

Typ

Max

Notes

Input Voltage (continuous)

-0.3V

-

100V

Remote On/Off

-0.3V

-40°C

-

100V

85°C

Ambient Temperature

Storage Temperature

125°C

Input Specifications

Parameter

Min

Typ

Max

Notes

Input Voltage

36V

-

75V

Input Current (full load)

Input Current (no load)

Remote Off Input Current

-

3A

45mA

3mA

2mA

Tested with simulated source impedance

of 10uH, 5Hz to 20MHz; use a

47uF/100V electrolytic capacitor with

Input Reflected Ripple Current (pk-pk)

-

N/A

Input Reflected Ripple Current (RMS)

-

N/A

ESR = 1 ohm max. at 200KHz at 25°C.

I²t Inrush Current Transient

Turn On Voltage Threshold

Turn Off Voltage Threshold

-

0.039A²s

34.5V

0.062A²s

-

32.5V

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

48V Input 8V/15A Output, 1/8 Brick

Output Specifications

Parameter

Min

Typ

Max

Notes

Output Voltage Set Point

Vin=36V

Vin=48V

Vin=75V

-

6V

8V

12.5V

-

Line Regulation

Load Regulation

-

6.5V

-

Vin=36V

Vin=48V

Vin=75V

-

0.5V

-

Regulation Over Temperature

(-40°C to +85°C)

-

30mV

-

Output Current

0A

-

15A

-

2.1A²s

Current Limit Threshold

Short Circuit Surge Transient

-

20A

1.3A²s

Test conditions:

Ripple and Noise (RMS)

Ripple and Noise (pk-pk)

-

15mV

90mV

20mV

0-20MHz BW, with a

1uF ceramic capacitor

and a 15uF Tantalum

capacitor at the output;

Vin=48V.

100mV

Turn on Time

-

10mS

0%

-

Overshoot at Turn on

Output Capacitance

3%

0uF

3000uF

Transient Response

Overshoot

-

100mV

120uS

100mV

120uS

-

25% ~ 50%

Max Load

Test conditions: di/dt =

0.1A/uS, Vin=48V, with

a 15uF tantalum

Settling Time

150uS

-

Vin=48V

Overshoot

50% ~ 25%

Max Load

capacitor at the output.

Settling Time

150uS

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

General Specifications

Parameter

Min

Typ

Max

Notes

Efficiency

93%

95%

-

Vin=48V, Io=Io,max

Switching Frequency

180KHz

-

200KHz

220KHz

-

Average PCB temperature will not

exceed 115°C.

Over Temperature Protection

115°C

Calculated Per Bell Core TR-332 (IO =

Nominal; Ta = 25°C)

MTBF

2,569,594 hours

Dimensions

Inches (L × W × H)

2.30 x 0.9 x 0.41

Millimeters (L × W × H)

58.4 x 22.8 x 10.41

Weight

-

23g

-

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

48V Input 8V/15A Output, 1/8 Brick

Control Specifications

Parameter

Min

Typ

Max

Notes

Remote On/Off

Signal Low (Unit On)

Signal High (Unit Off)

Signal Low (Unit Off)

Signal High (Unit On)

-0.3V

2.5V

-0.3V

2.5V

-

0.8V

100V

0.8V

100V

07CR-15T08L. The remote

on/off pin open, Unit on.

Active Low

Optional Active

High

07CR-15T08H. The remote

on/off pin open, Unit on.

Efficiency Data

96.00%

95.00%

94.00%

93.00%

92.00%

91.00%

90.00%

89.00%

88.00%

87.00%

86.00%

36V

48V

75V

0.00

5.00

10.00

15.00

OUTPUT CURRENT (A)

Thermal Derating Curve

Maximum output power derating curves vs. ambient air temperature

for airflow rates of 0 LFM through 400 LFM with air flowing

from input to output (nominal input voltage).

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

48V Input 8V/15A Output, 1/8 Brick

Turn-On (Enable)

Transient Response: di/dt=0.1A/uS, External Load Capacitance Co=15uF (tantalum capacitor)

50% to 75% and 75% to 50% load Transient at 48Vdc input and Ta=25 deg C

External Load Capacitance: 15µF tantalum capacitor

.

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

48V Input 8V/15A Output, 1/8 Brick

Mechanical Drawing

Pin Connections

Function

1

2

3

4

5

Vin+

Remote On/Off

Vin-

Vout-

Vout+

2005 Bel Fuse Inc. Specifications subject to change without notice. 010505

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