VRAH-07A1A00 [BEL]

DC-DC Regulated Power Supply Module, 1 Output, 23.1W, Hybrid, ROHS COMPLIANT PACKAGE-5;


型号：	VRAH-07A1A00
厂家：	BEL FUSE INC.
描述：	DC-DC Regulated Power Supply Module, 1 Output, 23.1W, Hybrid, ROHS COMPLIANT PACKAGE-5
文件：	总9页 (文件大小：285K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

NON-ISOLATED DC/DC CONVERTERS

12 Vdc Input

0.9 Vdc - 3.3 Vdc/7 A Output

xRAH-07A1A0

RoHS Compliant

Rev.A

•

Non-Isolated

•

Remote On/Off

•

Fixed Frequency

High Efficiency

High Power Density

Low Cost

Input Under Voltage Lockout

OCP/SCP

Wide Range Trim

UL60950-1 Recognized (UL/cUL)

Description

The Bel xRAH-07A1A0 modules are a series of non-isolated, step down dc/dc converters that operate from a

nominal 12 Vdc source. These converters are available in a range of output voltages from 0.9 Vdc to 3.3 Vdc. It is

packaged in a compact, overmolded package rated at 7 A. Optional lead forming provides a vertical mount

product for minimal footprint or a surface mount option for a very low profile. The output is closely regulated and

the efficiency is typically 88% for 3.3 Vdc output at full load. Typical features include remote on/off, input under

voltage lockout, over current protection and short circuit protection.

Part Selection

Input

Voltage

Max. Output

Current

Max. Output

Power

Typical

Efficiency

Part Number

Surface Mount

Part Number

Vertical Mount

Output Voltage

0.9 Vdc - 3.3 Vdc

12 Vdc

7 A

23.1 W

88%

SRAH-07A1A0

VRAH-07A1A0

Notes: 1. Add “0” suffix at the end of the model number to indicate “Tube Packaging”, and “R” for “Reel

Packaging”, and “G” for “Tray Packaging”.

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)

Output Enable Terminal Voltage

Ambient Temperature

Min

Typ

Max

15 V

Notes

-0.3 V

-40 °C

-55 °C

14 V

85 °C

125 °C

Storage Temperature

Input Specifications

Parameter

Input Voltage

Min

10 V

Typ

Max

14 V

Notes

Input Current (no load)

Input Current (full load)

100 mA

VO=3.3 V

3.0 A

2.6 A

1.9 A

1.6 A

1.3 A

1.0 A

VO=2.5 V

VO=1.8 V

VO=1.5 V

VO=1.2 V

VO=0.9 V

Remote Off Input Current

3 mA

10 mA

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

NON-ISOLATED DC/DC CONVERTERS

12 Vdc Input

0.9 Vdc - 3.3 Vdc/7 A Output

Input Specifications (continued)

Parameter

Min

Typ

Max

Notes

Tested with simulated source impedance of

500 nH, 5 Hz to 20 MHz and two 270 uF/16 V

Oscon capacitors with ESR=0.018 ohm max.

at 100 kHz

Input Reflected Ripple Current (pk-pk)

180 mA

Input Reflected Ripple Current (rms)

I²t Inrush Current Transient

50 mA

0.01 A²s 0.02 A²s

Turn on Voltage Threshold

Turn off Voltage Threshold

9.5 V

9.0 V

9.5 V

Output Specifications

Parameter

Min

Typ

Max

Notes

Output Voltage Set Point

VO=3.3 V

3.247 V

2.460 V

1.771 V

1.476 V

1.181 V

0.886 V

3.3 V

2.5 V

1.8V

1.5 V

1.2 V

0.9 V

3.353 V

2.540 V

1.829 V

1.524 V

1.219 V

0.914 V

VO=2.5 V

VO=1.8 V

VO=1.5 V

VO=1.2 V

VO=0.9 V

Test conditions:

Vin=12 V, Io=50% full load

Line Regulation

Load Regulation

±3mV

±6mV

±5 mV

±3 mV

±10 mV

±6 mV

VO=3.3 V

VO=2.5 V

VO=1.8 V

VO=1.5 V

VO=1.2 V

VO=0.9 V

Regulation Over Temperature

(-40 °C to +85 °C)

30 mV

50 mV

Output Current

Current Limit Threshold

0 A

10 A

7 A

20 A

0.04 A²s

Short Circuit Surge Transient

Ripple and Noise (rms)

0.02 A²s

VO=3.3 V

VO=2.5 V

VO=1.8 V

VO=1.5 V

VO=1.2 V

VO=0.9 V

20 mV

15 mV

10 mV

50 mV

40 mV

30 mV

Test condition: 0-20 MHz BW,

with a 330 uF/10 V Tantalum

capacitor at the output.

Ripple and Noise (pk-pk)

VO=3.3 V

VO=2.5 V

VO=1.8 V

VO=1.5 V

VO=1.2 V

VO=0.9 V

70 mV

60 mV

50 mV

8 mS

100 mV

80 mV

70 mV

20 mS

Turn on Time

Overshoot at Turn on

Output Capacitance

Transient Response

330 uF

2800 uF

Overshoot

Settling Time

Overshoot

120 mV

50 uS

180 mV

80 uS

50% ~ 100%

Max Load

Test conditions:

di/dt = 0.5 A/uS; Vin = 12 V;

with a 330 uF/10 V Tantalum

capacitor at the output.

All

120 mV

50 uS

180 mV

80 uS

100% ~ 50%

Max Load

Settling Time

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

NON-ISOLATED DC/DC CONVERTERS

12 Vdc Input

0.9 Vdc - 3.3 Vdc/7 A Output

General Specifications

Parameter

Min

Typ

Max

Notes

Efficiency

VO=3.3 V

85%

83%

80%

78%

75%

71%

88%

86%

83%

81%

78%

74%

VO=2.5 V

VO=1.8 V

VO=1.5 V

VO=1.2 V

VO=0.9 V

Measured at Vin=12 V, full load and

Ta=25 °C

Switching Frequency

250 kHz

300 kHz

350 kHz

Output Trim Range (wide trim)

403% Vo

VO=0.9 V

Output Trim Range (narrow trim)

VO=1.2 V-3.3 V

90% Vo

110% Vo

VO=0.9 V

Calculated Per Bell Core SR-332

(Vin=12 V; Vo=3.3 V; IO = 5.6 A; Ta =

25°C)

MTBF

8,202,646 hours

Dimensions (surface mount)

Inches (L × W × H)

0.78 x 0.70 x 0.32

Millimeters (L × W × H)

Dimensions (vertical)

Inches (L × W × H)

19.81 x 17.78 x 8.13

0.70 x 0.308 x 0.65

17.78 x 7.82 x 16.51

Millimeters (L × W × H)

Weight

5 g

Control Specifications

Parameter

Min

Typ

Max

Notes

Remote On/Off

Signal Low (Unit Off)

Signal High (Unit On)

-0.3 V

3.5 V

1 V

Remote on/off pin open, unit on.

14 V

Output Trim Equations

Equations for calculating the trim resistor (in kΩ) given the desired adjusted voltage (Vadj) and the nominal output

voltage of the converter (Vnom) are shown below. The Trim Up resistor should be connected between the Trim

pin and Ground.

Vout

6.06

R_trimup

− 1.05

Module

Trim

V_adj−V_nom

Rtrimup

GND

Note: Output voltage Vo=0.9 V when Rtrimup is not connected.

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

NON-ISOLATED DC/DC CONVERTERS

12 Vdc Input

0.9 Vdc - 3.3 Vdc/7 A Output

Efficiency Data

Efficiency Curve

95.0%

90.0%

85.0%

80.0%

75.0%

70.0%

65.0%

60.0%

10.0 V

12.0 V

14.0 V

0.70

1.75

3.50

5.25

7.00

Output Current (A)

Vo=3.3 V

Efficiency Curve

90.0%

85.0%

80.0%

75.0%

70.0%

65.0%

60.0%

55.0%

10.0 V

12.0 V

14.0 V

0.70

1.75

3.50

5.25

Output Current (A)

Vo=1.8 V

Efficiency Curve

85.0%

80.0%

75.0%

70.0%

65.0%

60.0%

55.0%

50.0%

45.0%

10.0 V

12.0 V

14.0 V

0.70

1.75

3.50

5.25

Output Current (A)

Vo=0.9 V

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

NON-ISOLATED DC/DC CONVERTERS

12 Vdc Input

0.9 Vdc - 3.3 Vdc/7 A Output

Thermal Derating Curves

Vo=0.9 V - 2.5 V

Vo=3.3 V

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

NON-ISOLATED DC/DC CONVERTERS

12 Vdc Input

0.9 Vdc - 3.3 Vdc/7 A Output

Ripple and Noise Waveforms

Ripple and noise at full load 0.9 Vdc output

Ripple and noise at full load 1.2 Vdc output

Ripple and noise at full load 1.5 Vdc output

Ripple and noise at full load 1.8 Vdc output

Ripple and noise at full load 2.5 Vdc output

Ripple and noise at full load 3.3 Vdc output

Note: Ripple and Noise at 12 Vdc input, with a 330 uF/10 V tantalum cap at the output, 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

NON-ISOLATED DC/DC CONVERTERS

12 Vdc Input

0.9 Vdc - 3.3 Vdc/7 A Output

Transient Response Waveforms

Transients 50% to 100% load 0.9 Vdc output

Transients 50% to 100% load 1.2 Vdc output

Transients 50% to 100% load 1.5 Vdc output

Transients 100% to 50% load 0.9 Vdc output

Transients 100% to 50% load 1.2 Vdc output

Transients 100% to 50% load 1.5 Vdc output

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

NON-ISOLATED DC/DC CONVERTERS

12 Vdc Input

0.9 Vdc - 3.3 Vdc/7 A Output

Transient Response Waveforms (continued)

Transients 50% to 100% load 1.8 Vdc output

Transients 100% to 50% load 1.8 Vdc output

Transients 50% to 100% load 2.5 Vdc output

Transients 100% to 50% load 2.5 Vdc output

Transients 50% to 100% load 3.3 Vdc output

Transients 100% to 50% load 3.3 Vdc output

Note: Transient Response at 12 V input, di/dt=0.5 A/uS, with 330 uF/10 V tantalum cap at the output,

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

NON-ISOLATED DC/DC CONVERTERS

12 Vdc Input

0.9 Vdc - 3.3 Vdc/7 A Output

Mechanical Outline

SRAH-07A1A0

Pin Connections

Function

bel

Remote On/Off (option)

Vin

Ground

Vout

Trim (option)

N/A

VRAH-07A1A0

Pin Connections

Function

Remote On/Off (option)

Vin

bel

Ground

Vout

bel

Trim (option)

RoHS Compliance

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

other hazardous substances from electronic products. These parts are not however

compatible with the higher temperatures associated with lead free solder processes and

must be soldered using a reflow profile with a peak temperature of no more than 240 ºC.

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

VRAH-07A1A00 [BEL]

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