GPDC2V520RMMRT001 [GALAXY]

DORADO 24V or 48V Input, 1.5V, 1.8V, 2.0V, 2.5V, 3.3V DC, 20A Output or 5.0V DC, 15A Output; DORADO 24V或48V输入， 1.5V ， 1.8V ， 2.0V ， 2.5V ， 3.3V DC ， 20A输出或5.0V DC， 15A输出


型号：	GPDC2V520RMMRT001
厂家：	GALAXY POWER, INC.
描述：	DORADO 24V or 48V Input, 1.5V, 1.8V, 2.0V, 2.5V, 3.3V DC, 20A Output or 5.0V DC, 15A Output DORADO 24V或48V输入， 1.5V ， 1.8V ， 2.0V ， 2.5V ， 3.3V DC ， 20A输出或5.0V DC， 15A输出
文件：	总6页 (文件大小：755K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

DORADO

24V or 48V Input, 1.5V, 1.8V, 2.0V, 2.5V, 3.3V DC,

20A Output or 5.0V DC, 15A Output

Industry's Lowest Cost High-efficiency

DC/DC Converter

Industry Standard Quarter Brick Pinout and

Footprint

Typical Efficiency: 83% at 3.3V, 15A

Low Profile

Very Low Common-mode Noise for a

Commercial DC/DC Converter

Constant Switching Frequency

Remote Sense

Uses Innovative Control and Power Topology

for Lower Parts Count

Single Board Design

Optional Low Profile Heatsink for Improved

Thermal Performance

The Dorado is available with an optional low profile

heatsink for improved thermal performance.

Header with M3 Metal Inserts for Mechanical

Connection to PCB

Two Year Warranty

Control Functions

Microprocessor Controlled

Primary-side Enable, Choice of Logic

Protection Features

Over Temperature Protection

Over Voltage Protection

Over Current Protection

Over/Under Input Voltage Protection

Typical Characteristics

Output Setpoint Accuracy: ±1%

Load Regulation: ±0.2%

Line Regulation: ±0.2%

Regulation over Line, Load, and Temperature: ±2%

Low Output Ripple

Industry Standard Output Trim

Dorado, Page 1

Part No. 01-002 Rev. 1.0–110802

PRODUCT PREVIEW

General Specifications

= 48V

T @25°C, 300 LFM Airflow, V

= 3.3V, I

= full load unless otherwise noted.

OUT

DC,

OUT

Available output power depends on ambient temperature and good thermal management. (See application graphs for limits.)

Input Characteristics

Parameter

Min

Typ

Max

Units

Operating Input Voltage

Input Current

Input Capacitance

Input Hysteresis, Low Line

µF

Output Characteristics

Regulation Over Line, Load & Temperature

Voltage Ripple

102

100

NOM

RMS

Voltage Ripple, 20MHz BW

Current Range

P–P

Current Limit Inception

Short Circuit Current, Peak (see Note below)

Output Transient Response, 50% to 75% load change, 1A/µsec

Settling Time to ±1%

OUT

300

µS

Turn-on Time to 98%Vnom

Output Overshoot at Turn-on

Trim Range

OUT

110

Overvoltage Protection, Latching

130

300

Isolation

Isolation Test Voltage, Input/Output (Basic)

Isolation Resistance

2000

MΩ

Features

Overtemperature Protection, Thermal Sensor, Latching*

Switching Frequency, Fixed

117

°C

kHz

Notes: During short circuit, converter will shut down and attempt to restart once per second. The average current during this

condition will be very low and the device can be safely left in this condition continuously. For specific output voltage

specifications, see the corresponding detailed data sheet.

*PCB less than 130°C

General Specifications

Approvals and Standards

Operating Temperature

Storage Temperature

Relative Humidity

-40°C to +100°C

-55°C to +125°C

UL and c-UL Recognized Component, TUV,

UL60950, CSA 22.2 No. 950, IEC/EN 60950**

EMC Characteristics:

10% to 95% RH,

Non-condensing

2 to 9Hz, 3mm disp.,

9 to 200Hz 1g

Designed to meet emission and immunity

requirements per EN55022, CISPR 22, Class B,

and CISPR 24.

Vibration

Material Flammability

Weight

UL V-0

30 grams

** An external fuse shall be used to comply with the

requirements.

MTBF

Telcordia (Bellcore)

2,000,000 hours

Dorado, Page 2

Part No. 01-002 Rev. 1.0–110802

PRODUCT PREVIEW

Application Notes

CoolConverter^™

Galaxy’s proprietary CoolConverter™ provides:

• Patent Pending single-stage power conversion

architecture, control, and magnetic design allow

unprecedented power density and efficiency in an isolated

power supply.

• An advanced microcontroller reduces parts count while

adding features, performance, and flexibility in the design.

Overvoltage Lockout

Protection and Control

Valid Input Voltage Range:

The converter measures the input voltage and will not

allow operation outside of the input voltage

specification. As shown by the graphs, hysteresis is

added to both the high and low voltage to prevent the

converter from turning on and off repeatedly when the

voltage is held near either voltage extreme. At low line

this assures the maximum input current is not exceeded;

at high line this assures the semiconductor devices in

the converter are not damaged by excessive voltage

stress.

Voltage

Rising

Voltage

Falling

Input Voltage (V)

Undervoltage Lockout

ON/OFF Logic Option:

The ON/OFF control logic can be either Negative

(standard) or Positive to enable the converter. For

Negative logic, the ON/OFF pin is brought below 1.0 V

with respect to the –INPUT pin to enable the converter.

For Positive logic, the ON/OFF pin is brought to greater

than 4.0 V with respect to the –INPUT pin. To request

the Positive logic version, add the suffix (P) to the

standard part number. The positive version has a built-

in pull up resistor of approximately 100 kΩ.

Voltage

Rising

Voltage

Falling

Input Voltage (V)

Dorado, Page 3

Part No. 01-002 Rev. 1.0–110802

PRODUCT PREVIEW

Application Notes

Output Over Voltage Protection:

Trim:

The output voltage is constantly monitored by the

microprocessor and a parallel regulation path with an

independent reference. If the output voltage exceeds

the over-voltage specification, the microprocessor will

latch the converter off. To turn the converter on requires

either cycling the ON/OFF pin or power to the

converter. This advanced feature prevents the converter

from damaging the load if there is a converter failure or

application error. If non-latching is required, consult

factory.

To trim the output voltage higher, connect the

required trim resistor from the Trim pin to the +Sense

pin. To trim the output voltage lower, connect the

required trim resistor from the Trim pin to the –Sense

pin. See diagram below.

Trim-down

Thermal Shutdown:

The printed circuit board temperature is measured

using a semiconductor sensor. If the maximum rated

temperature is exceeded, the converter is latched off. To

re-enable the converter requires cycling the ON/OFF

pin or power to the converter. If non-latching is

required, consult factory.

Trim-down (%)

Control Options:

100

As the behavior of the circuit is determined by

firmware in the microcontroller, specific customer

requirements such as

R_TRIM-DOWN

– 2

5.11kΩ

{_∆%}

Trim-up

• non-latching thermal protection

• custom valid input voltage range

• controlled delay from initiating an ON/OFF

signal for power sequencing

can be accomplished with no change to hardware.

The standard behavior was chosen based on system

design experience but we understand that customers

often have their own requirements.

Please consult Galaxy Power for your special needs.

Remote Sense:

The output voltage is regulated at the point where the

sense pins connect to the power output pins. Total sense

compensation should not exceed 0.4V or 10% of Vout,

whichever is greater.

VO(100+∆%) (100+2∆%)

R_TRIM-UP

–

5.11kΩ

{

}

1.225∆%

∆%

Safety:

An external input fuse must always be used to meet

External Output Trimming

these safety requirements.

+ Sense

Trim

– Sense

Dorado, Page 4

Part No. 01-002 Rev. 1.0–110802

PRODUCT PREVIEW

PACKAGE DETAIL

2.28

MOUNTING INSERT

CONNECTED TO CASE PIN

1.030

PIN 1 .815

.815 PIN 8

.665 PIN 7

.515 PIN 6

.365 PIN 5

.215 PIN 4

Function

Pin Dia. (in.)

1.45

PIN 2 .515

– Input

On/Off

+ Input

+ Output

+ Sense

Trim

0.040

0.060

0.040

0.060

PIN 3 .215

BOTTOM VIEW

.210

MOUNTING INSERT

M3 X 0.5 4 PLACES

.210

.070

2.000

PIN TO PIN

– Sense

– Output

.20

.50

(opt. L = .465)

.030

.50

Notes:

1. Mechanical tolerances

x.xxx in. = ±0.005 in.

x.xx in. = ±0.01 in.

SIDE VIEW

2. Pin material: brass with tin/lead plating over nickel

3. Workmanship: Meets or exceeds IPC-A-610B Class II

Dorado, Page 5

Part No. 01-002 Rev. 1.0–110802

PRODUCT PREVIEW

ORDERING INFORMATION

Standard Model

Number

Output

Voltage

Max

Efficiency

Half Load Full Load

Standard Model

Number

Output

Voltage

Max

Efficiency

Half Load Full Load

Current

24V Input Models (Designated C)

48V Input Models (Designated W)

GPDC5V015R*

GPDC3V320R*

GPDC2V520R*

GPDC2V020R*

GPDC1V820R*

GPDC1V520R*

* Options:

5.0V

3.3V

2.5V

2.0V

1.8V

1.5V

15A

20A

TBD

GPDW5V015R* 5.0V

GPDW3V320R* 3.3V

GPDW2V520R* 2.5V

GPDW2V020R* 2.0V

GPDW1V820R* 1.8V

GPDW1V520R* 1.5V

15A

20A

TBD

Heatsink Part Numbers

Positive Logic Version: High = On

0.145" Pins (±.01")

0.12" Pins (±.01")

Heatsink Ready

Tuned model**

Part

Typical Thermal Performance

Number

Height

Natural Convection

Forced Convection

Thermal Resistance**

Power Dissipation*

001

002

003

004

0.25"

0.50"

1.00"

0.13"

5.8°C/W

3.2°C/W

2.0°C/W

TBD

Low Profile (0.465" height)

11W

TBD

Heatsinks optional, consult factory.

**T (Tuned Model) Option

*@ 60°C rise heatsink to ambient

** @ 300'/min.

Designed for higher di/dt and ∆I applications,

the transient response has been modified to take

advantage of the capacitance on the customer's

PCB. This unit requires a minimum load

capacitance of 5600µF with an impedance

magnitude of less than 0.005Ω at 15kHz. It

offers a minimum 3X improvement in the peak

response compared to a standard unit.

Ordering Information

Example Part No:

GPDW3V320R

48V Input

3.3V@20A Output

Negative Logic

0.20" Pin Length

Heatsink Ready

Options Code:

GPDW3V320 P S R T 00X L

Part No.

Options:

Positive Logic Version

Optional Pin Lengths

M = 0.145"

S = 0.12"

Heatsink Ready

Tuned Model

Heatsink

Low Profile

Galaxy Power Inc. warrants to the original purchaser that the products conform to this

data sheet and are free from material and workmanship defects for a period of two (2)

years from the date of manufacture, if this product is used within specified conditions.

Galaxy Power Inc. reserves the right to make changes to the product(s) or information

contained herein without notice. No liability is assumed as a result of their use or

application. No rights under any patent accompany the sale of any such products or

information. For additional details on this limited warranty consult the factory.

155 Flanders Road Westborough, MA 01581

508-870-9775 Fax: 508-870-9796

e–mail: galaxy@galaxypwr.com

website: http://www.galaxypwr.com

Dorado, Page 6

Part No. 01-002 Rev. 1.0–110802

GPDC2V520RMMRT001 [GALAXY]

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