GALAXY GPP3V3-25

Polaris Series
The only true "quarter brick" on the market
48V Input, 1.5V, 2.2V, 3.3V, or 5.0V
The Polaris Series is a high current 100W
quarter brick DC/DC converter with:
100 Watts @ 100° Baseplate
67 Watts/cu. inch
1.2" x 2.4" x 0.5"
Fixed Frequency Operation
Remote Sense
Output Voltage Trim
Optional Heatsink
UL and CSA approved
Two Year Warranty
Control Functions
Remote Sense
Primary and Secondary Output Enable
Protection Features
Over Temperature Protection
Over Voltage Protection
Over Current Protection
Typical Characteristics
Output Setpoint Accuracy: ±1.25%
Load & Line Regulation: ±0.25%
Noise & Ripple:
75 mVp–p (1.5, 2.2V)
100 mVp–p (3.3, 5.0V)
Long Term Temperature Drift: ±0.5%
Output Trim
Polaris Series, Page 1
WWW.GALAXYPWR.COM
Part No. 99–003 Rev. 1.0
Specifications
General Specifications
Operating Temperature
0°C to +100°C baseplate
Storage Temperature
–40°C to +100°C
Relative Humidity
10% to 95% RH,
Non–condensing
Vibration
10–500Hz 0.75g peak
Weight
80gm, max. without heatsink
Material Flammability
UL94V–2
Safety
UL 1950, CSA C22.2 No. 950 approved1
MTBF
MIL–HDBK–217
1,000,000 hours2
Notes: 1. Requires one fuse located in either the plus or minus side of the 48V
supply; fuse rated for 8A max for all conditions.
2. 50-100% load; 40°C baseplate.
Input Characteristics
Baseplate Temperatures from 0°C to +100°C.
Parameter
Name
Test Condition
Var
Input Voltage
Requirement
Typ
Max
Unit
Symbol
Min
VI
36
72
V
Input Low Line Power On V
VIon
Module Power On
30
35
V
Input Low Line Power Off V
VIoff
Module Shutdown
80
90
%VIon
VI=VInom
–
2.0
W
100
–
µF
No Load Input Power
PIL
Input Capacitor
rated 80V min
(external to the converter)
Input Current
1.5V
II
VI = 36V, IO = 24A, VO = 1.5V
–
1.5
A
2.2V
II
VI = 36V, IO = 24A, VO = 2.2V
–
2.1
A
3.3V
II
VI = 36V, IO = 24A, VO = 3.3V
–
3.0
A
5.0V
II
VI = 36V, IO = 16A, VO = 5.0V
–
3.0
A
–
0.5
A2s
Inrush Transient
Efficiency
1.5V
VO = VO nom , IO = IO rated, VI=VInom
68
70
–
%
2.2V
72
74
–
%
3.3V
78
80
–
%
5.0V
82
84
–
%
Reflected Input Ripple
VI = 48V, IO = 24A
–
2.5
Ap-p
Maximum Losses at
1.5V
Pd
VI = 48V, VO = VOnom
–
17.0
W
Local Sense
2.2V
Pd
IO = IOmax rated, TCase= 70°C
–
20.6
W
3.3V
Pd
–
22.4
W
5.0V
Pd
–
17.6
W
Polaris Series, Page 2
WWW.GALAXYPWR.COM
Part No. 99–003 Rev. 1.0
Specifications
Output Characteristics
Over the complete baseplate temperatures and input voltage ranges.
Parameter
Name
Output Voltage (nominal)
Rated Output Current
Initial Output Voltage
Tolerance (with remote sense)
Noise and Ripple
Static Load and
Line Regulation
Long Term Temperature Drift
Output Voltage Trim
Output Voltage Trim
Polaris Series, Page 3
Test Condition
Requirement
Typ
Max
Unit
Var
Symbol
Min
1.5V
2.2V
3.3V
5.0V
1.5V
2.2V
3.3V
5.0V
VOnom
VOnom
VOnom
VOnom
IO
IO
IO
IO
–
–
–
–
0
0
0
0
-1.25
1.5
2.2
3.3
5.0
–
–
–
–
–
–
–
–
–
25
25
25
20
1.25
V
V
V
V
A
A
A
A
%VOnom
–
–
–
–
–
–
75
75
100
100
0.25
mVP-P
mVP-P
mVP-P
mVP-P
%VOnom
-0.5
1.683
1.336
2.287
1.683
3.430
3.103
5.197
4.703
1.683
1.336
2.287
1.683
3.430
3.103
5.197
4.703
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
0.5
1.717
1.363
2.333
1.717
3.500
3.166
5.303
4.798
1.717
1.363
2.333
1.717
3.500
3.166
5.303
4.798
%V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
1.5V
2.2V
3.3V
5.0V
VO = VOnom
VO = VOnom
VO = VOnom
VO = VOnom
Vadj = open, TC = +25°C
VI = VInom, IO = IOrated
20MHzP-P bandwidth,
VI=36-72V, IO = 0 amps to 100%
VI=36-72V, IO = 0.2amps to 100%
1.5V
VOtrim
2.2V
VOtrim
3.3V
VOtrim
5.0V
VOtrim
1.5V
VOtrim
2.2V
VOtrim
3.3V
VOtrim
5.0V
VOtrim
VIN = 48V
VO = VOnom
IO = 50%
of IOmax
Rtrim=13200
Rtrim=42200
Rtrim=140768
Rtrim=8250
Rtrim=41905
Rtrim=122825
Rtrim=118000
Rtrim=105511
Vtrim=1.404
Vtrim=0.700
Vtrim=1.149
Vtrim=0.313
Vtrim=2.808
Vtrim=2.156
Vtrim=2.869
Vtrim=2.130
WWW.GALAXYPWR.COM
Part No. 99–003 Rev. 1.0
Specifications
Output Characteristics (continued)
Over the complete baseplate temperatures and input voltage ranges. Airflow adjusted at 500LFM with 0.9" high heatsink.
Parameter
Name
Total Remote Sense
Compensation (round trip)
Output Overvoltage
Protection (Latching)
Test Condition
Var
Short Circuit Current
Transient Response, Vo
Deviation from Steady State
Settling Time (to ±1%)
Turn On Time
Turn on Ramp Time
Turn Off Time
(to 10% initial value)
External Load Capacitance
Over Temperature Shutdown
(Latching)
Isolation Resistance
(1500VDC) Input-Output
Min
VI = VImin, IO = IOmax rated
1.5V
2.2V
3.3V
5.0V
Output Voltage Protection
Response Time
Current Limit (nominal)
Symbol
1.5V
2.2V
3.3V
5.0V
1.5V
TOVP
VO = VOnom, IO = IOrated
IOlim
IOlim
IOlim
IOlim
VO = VOnom, VI = 48V
VO = 0.2 to 0.4V, VI = 72V
Io = 25–75% Imax @ 0.1A/µsec
(di/dt), positive or negative step1
ton
tramp
toff
VImin to VImax
VImin to VImax, 10-90% rise time
VImin to VImax
ESR@10,000µf = 2mΩ
TBASEPLATE
Requirement
Typ
Max
Unit
–
–
100
mV
2.00
2.64
3.96
6.00
–
–
–
–
–
–
2.30
2.86
4.29
6.50
150
V
V
V
V
µs
27
27
27
22
–
–
–
–
–
–
–
–
–
–
–
–
38
150
A
A
A
A
A
mV
–
1
1
–
–
–
–
–
250
20
10
1.0
µs
ms
ms
ms
100
–
–
10,000
125
µf
°C
10
–
MΩ
Notes: 1. 940µf (2, 470µF tantalum capacitor) solid tantalum capacitor placed across output.
Polaris Series, Page 4
WWW.GALAXYPWR.COM
Part No. 99–003 Rev. 1.0
Specifications
Control Signal Characteristics
Parameter
Name
Test Condition
Requirement
Min
Max
Unit
Module Enabled
Module Disabled
Source Current (VENABLE = 0.8V)
Module Enabled
Module Disabled
Source Current (RENABLE = 100Ω)
0
2.5
–
–
200K
–
V
V
mA
Ω
KΩ
mA
Symbol
P_Enable_L and
S_Enable_L
Function Controls
P_Enable_L and
S_Enable_L
Function Controls
VENABLE LOW
VENABLE HIGH
IENABLE LOW
RENABLE LOW
RENABLE LOW
IENABLE LOW
0.8
6.0
-1.0
100
–
-0.5
Enable Controls
Primary Enable_L
Secondary Enable_L
Output Voltage
Low
High or Open
Low
High or Open
Low
Low
High or Open
High or Open
On
Off
Off
Off
Output Load Conditions
(Turn On)
Enable Circuit
Turn on Time
On >3V
Off ≤0.6V
To VENABLE Pin
220K
IN4148
1M
2N7000
or
Equivalent
.22µF
Tantalum
To (–)
Turn on Time
3V
Output Voltage
Turn off Time
Turn off Time for
VENABLE going High
Turn on Time for
VENABLE going Low
VENABLE
2.5V
0.8V
Time
VENABLE
Time
Regulation Band
90% of Initial
Input Current
VOUT
Time
Input
Current
Time
TON
TOFF
Polaris Series, Page 5
WWW.GALAXYPWR.COM
Part No. 99–003 Rev. 1.0
Application Notes
Signal Characteristics: Per table on page 5.
For the GPP5V0-15 and GPP5V0-20, the trim voltage
for these two units is:
Input Signals:
Enable_L: This unit has both primary and secondary
output enable:
Primary Enable_L: This input signal is used to enable
the output of the converter when activated (active Low).
The signal is referenced to the input side (-Vin pin 11).
Secondary Enable_L: This input signal is used to
enable the output of the converter when activated (active
Low). The signal is referenced to the output side
(-Sense).
Primary Enable_L
Secondary Enable_L
Output Voltage
Low
High or Open
Low
High or Open
Low
Low
High or Open
High or Open
On
Off
Off
Off
Output Voltage Adjust: The output voltage of the
converter can be adjusted above or below the nominal
output voltage as specified in the Output Characteristics
Table. The range of adjustment above the nominal
output voltage is limited by the internal overvoltage trip
point settings. The overvoltage trip point settings do
not change with output voltage adjustments.
Output Voltage Turn On Time: The external circuit
used to turn on the converter's "enable circuit" is per the
Figure on page 5.
Voltage Programming: A voltage may be applied
between the “Trim” pin (pin 4) and the “– Sense“ pin
(pin 1) to adjust the output voltage up or down from the
nominal output. Vo is the desired output voltage.
For the GPP1V5-15 and GPP1V5-25, the trim voltage
for these two units is:
90.5
12.1
VTRIM = ——— * VO – —— Volts
44.97
6
For the GPP2V2-15 and GPP2V2-25, the trim voltage
for these two units is:
11.4935
12.1
VTRIM = ———— * VO – —— Volts
8.3862
6
For the GPP3V3-15 and GPP3V3-25, the trim voltage
for these two units is:
4.067
12.1
VTRIM = ——— * VO – —— Volts
2.06
3
1.829 * Vo - 6.05
———————— Volts
1.238
Resistor Programming:
Output voltage may be adjusted down from the nominal
output voltage with a resistor connected between the
“Trim” pin (pin 4) and the “-Sense” pin (pin 1).
For the GPP1V5-15 and GPP1V5-25, the trim resistor,
Rtrim for these two units is:
RTRIM =
Enable Controls
Polaris Series, Page 6
VTRIM =
(18. 1379 – 18.100 * VO)
—————————— Kohms
VO – 1.499
For the GPP2V2-15 and GPP2V2-25, the trim resistor,
Rtrim for these two units is:
169.1217 – 114.935 * VO
RTRIM = ———————————
Kohms
6.35 * VO – 13.977
For the GPP3V3-15 and GPP3V3-25, the trim resistor,
Rtrim for these two units is:
2
(249.26 –122.01 * VO)
RTRIM = —— * ——————————
Kohms
5
2.49 *Vo – 8.24
For the GPP5V0-15 and GPP5V0-20, the trim resistor,
Rtrim for these two units is:
RTRIM =
18.29 * Vo – 60.50
————————
Kohms
5 – VO
Output voltage may be adjusted up from the nominal
output voltage with a resistor connected between the
“Trim” pin (pin 4) and the “+ Sense” pin (pin 2).
For the GPP1V5-15 and GPP1V5-25, the trim resistor,
Rtrim for these two units is:
(18.1379 – 9.106 * Vo)
VO – 1.499
RTRIM = ——————————— Kohms
For the GPP2V2-15 and GPP2V2-25, the trim resistor,
Rtrim for these two units is:
169.1217 – 31.073 * VO
6.35 * VO – 13.977
RTRIM = ——————————— Kohms
For the GPP3V3-15 and GPP3V3-25, the trim resistor,
Rtrim for these two units is:
2
(249.26 –60.21 * VO)
RTRIM = —— * ——————————
Kohms
5
2.49 *VO – 8.24
WWW.GALAXYPWR.COM
Part No. 99–003 Rev. 1.0
Application Notes
For the GPP5V0-15 and GPP5V0-20, the trim resistor,
Rtrim for these two units is:
60.50 – 5.91 * Vo
VO – 5
RTRIM = —————————— Kohms
Thermal Considerations:
Thermal considerations are an important factor in the
reliable operation of the converter. The maximum
operating baseplate temperature is 100°C. The
maximum recommended operating baseplate
temperature is 90°C. The baseplate temperature is a
function of the losses within the converter, the converter
ambient temperature, and airflow across the heat sink.
The reference baseplate temperature is measured at the
center coordinates of the baseplate.
The baseplate temperature can be approximated by the
following equation:
1- η
η
Overcurrent Protection: The converter shall survive
any overload condition indefinitely including short
circuit. The values of current limit and short circuit
shall be per the Output Characteristics Table.
Overvoltage Protection: The converter shall be
protected against any overvoltage across Vout pins by
shutting down the output at the values specified in the
Output Characterisitics Table. This is a latched
condition and either the input voltage has to be recycled
or the primary enable signal (P_ENABLE_L) has to be
recycled to reset normal operation.
Recommended Input Filter, Fuse and Case
Connections: A fuse is required in series with the plus
or minus side of the 48V input to meet safety
requirements. The following input filter circuit is
recommended for all applications. The fuse should be
inserted between the capacitors and the plus or minus
input of the converter. The case should be connected to
the output return.
TBASEPLATE = POUTPUT * —— * RBASEPLATE-AMBIENT + TAMBIENT
Where:
TBASEPLATE
Tambient
η
48V
is the temperature of the
baseplate.
is the local ambient temperature
around the converter
is the efficiency of the converter
(see Table on page 5)
Rbaseplate-ambient is the thermal resistance from the
baseplate to the ambient
environment. This is a function
of the heat sink and air velocity.
1
In (+)
°
C1
270µF
63V
48V RTN
4
80
UH
+
C2
1µF
100V
°
3
In (–)
F1
In (+)
+
Input
–
In (–)
DC/DC
Converter
+
Output
P Enable
C3
1µF
100V
Thermal Shutdown: The converter shall shutdown
under a thermal overload. This is a latched condition
and either the input voltage has to be recycled or the
primary enable signal (P_ENABLE_L) has to be
recycled to reset normal operation.
Polaris Series, Page 7
L1
2
WWW.GALAXYPWR.COM
C4
1µF
100V
Case
RLOAD
–
L1
Common Mode Inductor
C1
270µF, 63V Aluminum Electrolytic Capacitor
C2-C4 1µF, 100V Ceramic capacitor
Part No. 99–003 Rev. 1.0
PACKAGE DETAIL
Pin Assignments
Pin
No.
Heatsink Profile
1
2
3
.500±.010
Side View
.240
.200
.040 pins
4plcs
4
5
6
7
8
9
10
2.400 ±.010
.200
.150
1.300
.900 .450 .300
MAX
.225
.200
.100
.100
9
10
11
12
5
7
1
6
2
8
.025 sq pin
.100 grid, 6 plcs
.025
.175
.150
.060 pins
2plcs
.400
.250
M3X 0.5 4plcs
11
12
2.050
2.100
Designation
Pin Size
(inch)
Tolerance
(inch)
-Sense
+Sense
S_Enable_L
(Secondary Enable)
Trim
NC
NC
-Vout
+Vout
Case
P_Enable_L
(Primary Enable)
-Vin
+Vin
0.025 Sq
0.025 Sq
±0.001
±0.001
0.025 Sq
0.025 Sq
0.025 Sq
0.025 Sq
0.060
0.060
0.040
±0.001
±0.001
±0.001
±0.001
±0.002
±0.002
±0.002
0.040
0.040
0.040
±0.002
±0.002
±0.002
Output
Voltage
Max
Current
Efficiency
(Typ)
2.2V
2.2V
1.5V
1.5V
25 A
15 A
25 A
15 A
73%
75%
70%
71%
Bottom View
ORDERING INFORMATION
Model
Number
GPP5V0-20
GPP5V0-15
GPP3V3-25
GPP3V3-15
Output
Voltage
Max
Current
Efficiency
(Typ)
5.0V
5.0V
3.3V
3.3V
20 A
15 A
25 A
15 A
84%
85%
80%
82%
Model
Number
GPP2V2-25
GPP2V2-15
GPP1V5-25
GPP1V5-15
* Heatsinks required: available on request.
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: [email protected]
website: http://www.galaxypwr.com
© Copyright 2000 Galaxy Power. Specifications subject to change without notice.
Polaris Series, Page 8
WWW.GALAXYPWR.COM
Part No. 99–003 Rev. 1.0