GALAXY GAMW2V040MMT

Eighth-brick
Mars
48V Input, 2.0VDC, 40A Output
Quarter-brick
The Mars CoolConverter™ is the most
cost-effective 100W quarter-brick on
the market.
Industry Standard Pinout and Footprint
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
Very Low Parts Count
Optional Baseplate or Low Profile Heatsink
for Improved Thermal Performance
Header with M3 Metal Inserts for Mechanical
Connection to PCB
Two Year Warranty
Half-brick
The Mars Series of quarterbrick DC/DC converters offers
high current performance with
high efficiency at low cost.
3-Quarter-brick
Control Functions
GAMW2V040 Features:
48V Input
2.0VDC, 40A Output
High Efficiency:
87% at 2.0V, 40A
89% at 2.0V, 20A
Uses Patented Power Supply Control
and Architecture
Microprocessor Controlled
Primary-side Enable, Choice of Logic
SIP
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
ISO 9001 CERTIFIED ORGANISATION
®
Certified to ISO 9001:2000
Part No. 02-GAM-04 Rev. 1.0 – 042805
Galaxy Power Inc.
155 Flanders Road
WWW.GALAXYPWR.COM
Westborough, MA 01581
Telephone: 508-870-9775
GAMW2V040 – 1
Fax: 508-870-9796
e-mail: [email protected]
General Specifications
VIN = 48VDC, [email protected]° C, 300 LFM Airflow, VOUT=2.0VDC, IOUT = Full Load unless otherwise noted.
Available output power depends on ambient temperature and good thermal management. (See application graphs for limits.)
Input Characteristics
Parameter
Operating Input Voltage
Min
Typ
Max
Units
36
48
75
VDC
2.9
A
Input Current
Input Capacitance
3
µF
Input Hysteresis, Low Line
2
VDC
Output Characteristics
Regulation Over Line, Load & Temperature
1.960
2.040
V
Voltage Ripple
20
Voltage Ripple, 20MHz BW
60
mV RMS
mV P–P
0
40
A
41.2
56
%Io MAX
Short Circuit Current, Peak1
60
A
Output Transient Response, 50% to 75% load change, 1A/µsec2
18
%VOUT
300
µS
25
mS
Current Range
Current Limit Inception
Settling Time to ± 1%
Turn-on Time to 98%Vnom
Output Overshoot at Turn-on
0
Trim Range
70
Overvoltage Protection, Latching
%VOUT
110
130
%VOUT
%VOUT
Isolation
Isolation Test Voltage, Input/Output (Basic)
Isolation Resistance
2250
VDC
10
MΩ
Features
Overtemperature Protection, Thermal Sensor, Latching3
110
Switching Frequency, Fixed
250
°C
kHz
Notes:
1. 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.
2. Limited by output energy storage. For improved performance see Tuned (T) model information.
3. PCB less than 130° C
General Specifications
Approvals and Standards
Operating Temperature
–40° C to +100° C
Storage Temperature
–55° C to +125° C
Relative Humidity
10% to 95% RH,
Non-condensing
Vibration
2 to 9Hz, 3mm disp.,
9 to 200Hz, 1g
Material Flammability
UL V-0
Weight
MTBF
EMC Characteristics:
Designed to meet emission and immunity
requirements per EN55022, CISPR 22, Class B,
and CISPR 24.
** An external fuse shall be used to comply with the requirements.
35 grams
Telcordia (Bellcore)
TBD
WWW.GALAXYPWR.COM
GAMW2V040 – 2
Galaxy Power Inc.
UL and c-UL Recognized Component, TUV**,
UL60950, CSA 22.2 No. 950, IEC/EN 60950
155 Flanders Road
Westborough, MA 01581
Telephone: 508-870-9775
Part No. 02-GAM-04 Rev. 1.0 – 042805
Fax: 508-870-9796
e-mail: [email protected]
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 from balanced winding design.
Protection and Control
Undervoltage Hysteresis
Normalized
1.0
Output Voltage
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.
0
30
31
32
33
35
34
36
37
Input Voltage (V)
Overvoltage Hysteresis
Normalized
1.0
Output Voltage
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 to below
1.0V 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.
0
76.5
77
77.5
78
78.5
79
79.5
80
80.5
Input Voltage (V)
Part No. 02-GAM-04 Rev. 1.0 – 042805
Galaxy Power Inc.
155 Flanders Road
WWW.GALAXYPWR.COM
Westborough, MA 01581
Telephone: 508-870-9775
GAMW2V040 – 3
Fax: 508-870-9796
e-mail: [email protected]
Application Notes
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.
Control Options:
As the behavior of the circuit is determined by
firmware in the microcontroller, specific customer
requirements such as
• 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.
Trim:
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.
Trim-up
RTRIM-UP =
{
}
2 (100+∆%) (100+2∆%)
1.225∆% –
∆%
5.11kΩ
2.0V Trim-up
1000
Trim Resistance (kΩ)
Output Over Voltage Protection:
The output voltage is constantly monitored by the
microprocessor with a redundant secondary-side
measurement circuit that both shuts down the duty
cycle and triggers the microprocessor to shut down.
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.
100
10
0
1
2
3
4
5
6
7
8
9
10
Increase in Output Voltage (%)
Trim-down
RTRIM-DOWN =
100
–2
∆%
{
}
5.11kΩ
Trim-down
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.
Safety:
An external input fuse must always be used to meet
these safety requirements.
Trim Resistance (kΩ)
1000
100
10
0
External Output Trimming
1
2
3
4
5
6
7
8
9
10
Decrease in Output Voltage (%)
+ Sense
Trim
– Sense
WWW.GALAXYPWR.COM
GAMW2V040 – 4
Galaxy Power Inc.
155 Flanders Road
Westborough, MA 01581
Telephone: 508-870-9775
Part No. 02-GAM-04 Rev. 1.0 – 042805
Fax: 508-870-9796
e-mail: [email protected]
GAMW2V04o Operation
Power Dissipation
Efficiency
14
Power Dissipation (W)
92
Efficiency (%)
90
88
86
84
82
36V Vin
48V Vin
75V Vin
80
78
12
10
8
6
36V Vin
48V Vin
75V Vin
4
2
0
76
0
5
10
20
15
25
30
35
5
0
40
10
15
20
25
30
Output Current (A)
Output Current (A)
Start Up
Voltage Ripple
35
40
CH2
CH1
CH3
1) Vout 20mV/div 2µS/div
10µF ext cap 20MHz BW
1) Vout 1V/div 4mS/div
2) Iout 10A/div
3) Enable 5V/div
Line/Load Regulation
Transient Response
Output Voltage (V)
2.04
CH1
CH2
Setpoint Accuracy 0.4450%
Line Regulation 0.0847%
Load Regulation 0.0498%
Line & Load Regulation 0.1121%
2.03
2.02
2.01
2.00
1.99
36V Vin
48V Vin
75V Vin
1.99
1.98
1.97
0
Part No. 02-GAM-04 Rev. 1.0 – 042805
155 Flanders Road
10
15
20
25
30
35
40
Output Current (A)
1) Vout 200mV/div 200µS/div
2) Iout 10A/div
Galaxy Power Inc.
5
WWW.GALAXYPWR.COM
Westborough, MA 01581
Telephone: 508-870-9775
GAMW2V040 – 5
Fax: 508-870-9796
e-mail: [email protected]
GAMW2V040 Operation
Back Bias
Over-current Protection
Note: Over-current protection is blip-mode (aka hiccup).
Output Voltage (V)
2.5
2.0
1.5
1.0
36V Vin
48V Vin
75V Vin
0.5
0
40
41
42
1) Vout 500mV/div 2mS/div
Thermal Derating
40
35
35
Output Current (A)
Output Current (A)
40
30
25
20
300 LFM
200 LFM
100 LFM
5
0
0
10
20
30
45
46
Lengthwise Airflow
45
10
44
Thermal Derating
Crosswise Airflow
45
15
43
Output Current (A)
40
50
60
70
80
90
30
25
20
15
300 LFM
200 LFM
100 LFM
10
5
0
0
Ambient Temperature (°C)
10
20
30
40
50
60
70
80
90
Ambient Temperature (°C)
Over Voltage Protection
1) Vout 0.5V/div 0.25mS/div
WWW.GALAXYPWR.COM
GAMW2V040 – 6
Galaxy Power Inc.
155 Flanders Road
Westborough, MA 01581
Telephone: 508-870-9775
Part No. 02-GAM-04 Rev. 1.0 – 042805
Fax: 508-870-9796
e-mail: [email protected]
PACKAGE DETAIL
.45
.120
2.28
2.000
.070
MOUNTING THREADS
M3 X 0.5, 4 PLACES
.21
1.860
.815 PIN 4
1.45
PIN 3
.815
PIN 2
.515
PIN 1
.215
.665 PIN 5
Pin Configuration
Pin
.515 PIN 6
.365 PIN 7
1.030
.215 PIN 8
0
.21
BOTTOM VIEW
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
5. "B" = 0.060" dia. pins
6. Min. screw length for heatsink attachment
= 4.5mm + heatsink flange + locking hardware.
(Bottom View)
Function
Pin Dia. (in.)
1
+ Input
0.040
2
On/Off
0.040
3
– Input
0.040
4
– Output
0.060
5
– Sense
0.040
6
Trim
0.040
7
+ Sense
0.040
8
+ Output
0.060
ORDERING INFORMATION
Standard Model
Number
GAMW2V040*
Input
Voltage
Output
Voltage
Max
Current
48V
2.0V
40A
Example Part No.:
(All options shown)
GAMW2V040 P S T
* Options:
P = Positive Logic Version; High = On
E = 0.18" Pins (± .01")
M = 0.145" Pins (± .01")
S = 0.12" Pins (± .01")
T = Tuned model**
Part Number
**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.
Options:
Positive Logic Version
Optional Pin Lengths
E = 0.18"
M = 0.145"
S = 0.12"
Tuned Model
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.
Part No. 02-GAM-04 Rev. 1.0 – 042805
Galaxy Power Inc.
155 Flanders Road
WWW.GALAXYPWR.COM
Westborough, MA 01581
Telephone: 508-870-9775
GAMW2V040 – 7
Fax: 508-870-9796
e-mail: [email protected]