GHPW5V020PMT002L [GALAXY]
Very High Efficiency DC/DC Converter 24/48V Input, 1.5V, 1.8V, 2.0V, 2.5V, 3.3V DC, 30A Output or 5.0V DC, 20A Output; 高效率DC / DC转换器24 / 48V输入， 1.5V ， 1.8V ， 2.0V ， 2.5V ， 3.3V DC ， 30A输出或5.0V DC， 20A输出
| 型号： | GHPW5V020PMT002L |
| 厂家： | 
GALAXY POWER, INC. |
| 描述： | Very High Efficiency DC/DC Converter 24/48V Input, 1.5V, 1.8V, 2.0V, 2.5V, 3.3V DC, 30A Output or 5.0V DC, 20A Output |
| 文件： | 总7页 (文件大小：1079K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PISCES Series
Very High Efficiency DC/DC Converter
24/48V Input, 1.5V, 1.8V, 2.0V, 2.5V, 3.3V DC, 30A Output
or 5.0V DC, 20A Output
The Pisces Series is the first high-efficiency
™
quarter brick CoolConverter in the Galaxy
family of high-efficiency DC/DC converters.
Industry Standard Pinout and Footprint
Typical Efficiency
92% at 3.3V, 15A; 90% at 3.3V, 30A
No Heat Sink Required
Very Low Common-mode Noise for a
Commercial DC/DC Converter
Two-stage Input Filter
Constant Switching Frequency
Remote Sense
Single Board Design
Optional Baseplate or Low Profile Heatsink for
Improved Thermal Performance
Header with M3 Metal Inserts for Mechanical
Connection to PCB
The open-frame Pisces is available with an optional
baseplate or low profile heatsink for maximum
thermal performance.
Two Year Warranty
Control Functions
Uses Patented Power Supply Control
and Architecture
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
Output Trim
Pisces Series, Page 1
Part No. 99-002 Rev. 4.0–093003
WWW.GALAXYPWR.COM
General Specifications
V
= 48V
T @25°C, 300 LFM Airflow, V
=3.3V, I
OUT
= Full Load unless otherwise noted.
OUT
IN
DC,
A
Available output power depends on ambient temperature and good thermal management. (See application graphs for limits.)
Input Characteristics
Parameter
Min
Typ
Max
75
5
Units
Operating Input Voltage
Input Current (Model Dependent)
Input Capacitance
36
48
V
DC
A
4.5
2
µF
Input Hysteresis, Low Line
V
DC
Output Characteristics
Regulation Over Line, Load & Temperature
Voltage Ripple
98
102
20
150
30
37
41
5
%V
mV
NOM
RMS
Voltage Ripple, 20MHz BW
Current Range
mV
P–P
0
A
Current Limit Inception
31
A
A
Short Circuit Current, Peak (see Note below)
Output Transient Response, 50% to 75% load change, 1A/µsec
Settling Time to ±1%
%V
OUT
300
35
1
µS
Turn-on Time to 98%Vnom
Output Overshoot at Turn-on
Trim Range
mS
%V
OUT
OUT
OUT
90
110
%V
%V
Overvoltage Protection, Latching
130
200
Isolation
Isolation Test Voltage, Input/Output (Basic)
Isolation Resistance
2000
10
V
DC
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
35 grams
** An external fuse shall be used to comply with the
requirements.
MTBF
Telcordia (Bellcore)
1,600,000 hours
Pisces Series, Page 2
WWW.GALAXYPWR.COM
Part No. 99-002 Rev. 4.0–093003
Application Notes
CoolConverter™
Galaxy’s proprietary CoolConverter™ provides:
• Patented 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.
• Low common-mode noise as a result of lower capacitance
in the transformer compared to planar magnetics and
metal baseplate designs.
• Higher reliability than planar transformer designs that can
suffer from via fatigue from thermal cycling, and metal
baseplate designs with board to board interconnects that
are subject to mechanical stress on electrical connections.
Protection and Control
Valid Input Voltage Range:
Overvoltage Lockout
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
75
76
77
78
79
80
Input Voltage (V)
ON/OFF Logic Option:
Undervoltage Lockout
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.
The pull down must be able to sink 100µA. For
Positive logic, the ON/OFF pin is brought to greater
than 4.0V with respect to the –INPUT pin and be
limited to less than 10V. To request the Positive logic
version, add the suffix (P) to the standard part number.
The ON/OFF pin has a built-in pull up resistor of
approximately 100kΩ to +5V.
Voltage
Rising
Voltage
Falling
30
32
34
36
38
40
Input Voltage (V)
Pisces Series, Page 3
Part No. 99-002 Rev. 4.0–093003
WWW.GALAXYPWR.COM
Application Notes
Output Over Voltage Protection:
Trim:
The output voltage is constantly monitored by the
microprocessor and a redundant secondary-side crowbar
circuit that is set to a higher trip point than the
microprocessor protection. If the output voltage
exceeds the over-voltage specification, the
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.
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.
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 (%)
100
Control Options:
RTRIM-DOWN
=
– 2
5.11kΩ
{∆% }
As the behavior of the circuit is determined by
firmware in the microcontroller, specific customer
requirements such as
Trim-up (for 3.3V)
• 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∆%)
RTRIM-UP
=
−
5.11kΩ
{
}
1.225∆%
∆%
Safety:
External Output Trimming
An external input fuse must always be used to meet
these safety requirements.
+ Sense
Trim
– Sense
Pisces Series, Page 4
WWW.GALAXYPWR.COM
Part No. 99-002 Rev. 4.0–093003
GHPW3V3–30 Operation
Efficiency
Power Dissipation
94
92
90
88
86
84
82
80
14
12
10
36V Vin
48V Vin
75V Vin
36V Vin
48V Vin
75V Vin
8
6
4
2
0
0
10
15
20
30
5
25
0
5
10
15
20
25
30
Output Current (A)
Load Current (A)
Output Voltage vs Line Load
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
36V Vin
48V Vin
75V Vin
28
32
34
36
42
30
38
40
Output Current (A)
Transient Response
Voltage Ripple
VOUT
VOUT
20
IOUT
10
Start-up Waveform w/No Load
Thermal Derating Curves
]
[
T
35
30
25
20
15
10
5
T
VOUT
2
1
300 LFM, Low Profile Heat Sink
300 LFM, Metal Plate
200 LFM, Low Profile Heat Sink
300 LFM, Open Frame
ON/OFF
200 LFM, Metal Plate
200 LFM, Open Frame
0
20
30
40
50
60
70
80
Ch2 1.00 V
M
4.00ms
A
Ch1
2.40V
Ch1 5.00V
Ambient Air Temperature (deg C)
Pisces Series, Page 5
Part No. 99-002 Rev. 4.0–093003
WWW.GALAXYPWR.COM
PACKAGE DETAIL
2.28
MOUNTING INSERT
CONNECTED TO CASE PIN
Pin Configuration — Bottom View
Pin
Function
Pin Dia. (in.)
1.030
1.030
1
2
3
4
5
6
7
8
– Input
On/Off
+ Input
+ Output
+ Sense
Trim
0.040
0.040
0.040
0.060
0.040
0.040
0.040
0.060
0.815 PIN 8
PIN 7
0.515 PIN 6
0.365 PIN 5
PIN 4
0.815
PIN 1
A
A
1.45 PIN 2 0.515
A
PIN 3 0.215
0
0
BOTTOM VIEW
.210
MOUNTING INSERT
M3 X 0.5 4 PLACES
.210
0.070
– Sense
– Output
2.000
PIN TO PIN
Notes:
1. Mechanical tolerances
x.xxx in. = ±0.005 in.
x.xx in. = ±0.01 in.
2. Pin material: brass with tin/lead plating over nickel
3. Workmanship: Meets or exceeds IPC-A-610B Class II
4. "A" = 0.040" dia pins
0.50
0.50
(opt. L = 0.465)
0.010 0.008
0
SIDE VIEW
5. "B" = 0.060" dia pins
0.20
Pisces Series, Page 6
WWW.GALAXYPWR.COM
Part No. 99-002 Rev. 4.0–093003
ORDERING INFORMATION
Standard Model
Number
Output
Voltage
Max
Typical Efficiency
Half Load Full Load
Standard Model
Number
Output
Voltage
Max
Typical Efficiency
Half Load Full Load
Current
Current
24V Input Models (Designated C)
48V Input Models (Designated W)
GHPC5V020*
GHPC3V330*
GHPC2V530*
GHPC2V030*
GHPC1V830*
GHPC1V530*
* Options:
5.0V
3.3V
2.5V
2.0V
1.8V
1.5V
20A
30A
30A
30A
30A
30A
90%
88%
GHPW5V020*
GHPW3V330*
GHPW2V530*
GHPW2V030*
GHPW1V830*
GHPW1V530*
5.0V
3.3V
2.5V
2.0V
1.8V
1.5V
20A
30A
30A
30A
30A
30A
91%
92%
90%
89%
88%
86%
90%
90%
87%
85%
84%
82%
91%
89%
88%
87%
85%
89%
86%
84%
83%
81%
P = Positive Logic Version; High = On
E = 0.18" Pins (±0.01")
M = 0.145" Pins (±0.01")
S = 0.12" Pins (±0.01")
R = Heatsink Ready
Ordering Information
Example Part No.:
GHPW3V330
T = Tuned model**
L = Low Profile (0.465" height – open frame only)
48V input
3.3V@ 30A output
Negative Logic
0.20" Pin Length
Open Frame
Heatsink Part Numbers
Part
Typical Thermal Performance
Number
Height
Natural Convection
Power Dissipation*
Forced Convection
Thermal Resistance**
001
002
003
004
0.25"
0.50"
1.00"
0.13"
5W
7W
5.8°C/W
3.2°C/W
2.0°C/W
TBD
Options Code:
(All options shown)
11W
TBD
GHPW 3V330 P S RT 00X L
005
0.70"
TBD
TBD
** @ 300'/min.
Part Number
(from chart above)
Options:
*@ 60°C rise heatsink to ambient
Positive Logic Version
Optional Pin Lengths
E = 0.18"
M = 0.145"
S = 0.12"
Heatsink-ready
Tuned Model
Heatsink
**T (Tuned Model) Option
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.
001 = 0.25"
002 = 0.50"
003 = 1.00"
004 = 0.13"
005 = 0.70"
Low Profile (0.465" height)
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
© Copyright 2003 Galaxy Power. Specifications subject to change without notice.
相关型号：
GHPW5V020PMT003L
Very High Efficiency DC/DC Converter 24/48V Input, 1.5V, 1.8V, 2.0V, 2.5V, 3.3V DC, 30A Output or 5.0V DC, 20A Output
GALAXY
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