DIM050300SFA [DELTA]
Delphi Series DIM, 300W Dual Input Power Processing DC/DC Power Modules; 德尔福系列DIM ， 300W双路输入电源处理DC / DC电源模块
| 型号： | DIM050300SFA |
| 厂家： | 
DELTA ELECTRONICS, INC. |
| 描述： | Delphi Series DIM, 300W Dual Input Power Processing DC/DC Power Modules |
| 文件： | 总13页 (文件大小：372K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
FEATURES
High efficiency 98% @ 48Vin, 300W
Size: 70.6x36.8x12.7mm (2.78”x1.45”x0.5”)
Standard footprint
Industry standard pin out
Input OVP, UVLO, Output OCP, OVP, OTP
8W (3.3Vdc or 5.0Vdc) of isolated
management power for module self or other
housekeeping functions
5V/100mA BLUE_LED power
Input OR'ing for the A/B dual input power
feeds as well as A/B Enable signals
Inrush protection and hot swap capability
Integral EMI filter designed for the ATCA
board to meet CISPR Class B
Independent 72Vdc output for charging the
external holdup capacitors resulting in
significant board real estate savings and
bleed resistor power dissipation
ISO 9001, TL 9000, ISO 14001, QS9000,
OHSAS18001 certified manufacturing facility
UL/cUL 60950-1 (US & Canada), and TUV
(EN60950-1) - pending
Delphi Series DIM, 300W Dual Input Power
Processing DC/DC Power Modules
OPTIONS
The Delphi DIM series, 300W dual redundant input power processing
isolated DC/DC converter is the latest offering from a world leader in
power system and technology and manufacturing ― Delta Electronics,
Inc. This product family provides up to 300 watts of power in an industry
standard footprint and pinout. The DIM series is designed to simplify the
task and reduce the board space of implementing dual redundant, hot
swappable 48Vdc power distribution with EMI filtering and inrush
current limiting for an ATCA (Advanced Telecommunications
Computing Architecture) or other telecom boards. In addition to
processing the dual redundant 48V bus, the DIM module also provides
isolated auxiliary 3.3V or 5V (8W), and/or 5V (100mA) BLUE_LED
power for other housekeeping functions. With creative design
technology and optimization of component placement, these converters
possess outstanding electrical and thermal performances, as well as
extremely high reliability under highly stressful operating conditions. All
models are fully protected from abnormal input/output voltage, current,
and temperature conditions. The Delphi DIM series converters meet all
safety requirements with basic insulation.
3.3V or 5V management Power
APPLICATIONS
Telecom / Datacom
Wireless Networks
Optical Network Equipment
Server and Data Storage
Industrial / Testing Equipment
PRELIMINARY DATASHEET
DS_DIM3R3_08292008
TECHNICAL SPECIFICATIONS
(TA=25°C, airflow rate=300 LFM, Vin=-48Vdc, nominal Vout unless otherwise noted;)
PARAMETER
NOTES and CONDITIONS
DIM3R3300 (Standard)
Min.
Typ.
Max.
Units
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Continuous
Transient
Operating Case Temperature
Storage Temperature
0
-48
-75
-100
117
125
Vdc
Vdc
°C
10μs
Please refer to Fig.13 for the measuring point, Tc
-40
-55
°C
ISOLATION
Input to MGMT_PWR Output Voltage
Input to SHELF_GND Voltage
Input to LOGIC_GND Voltage
LOGIC_GND to SHELF_GND Insulation Resistance
1500
1500
1500
Vdc
Vdc
Vdc
MΩ
100Vdc
10
GENERAL SPECIFICATIONS
Calculated MTBF
Over-Temperature Shutdown
Weight
Pin=240W, Vin=-48V
Refer to Figure 13 for the measuring point, Tc
TBD
130
27
Mhours
°C
grams
MAIN INPUT (DUAL FEED) CHARACTERISTICS
Operation Input Voltage Range
Input UVLO
-36
-75
V
Turn-On Voltage Threshold
Turn-Off Voltage Threshold
Input OVP
VRTN_OUT open load
VRTN_OUT open load
-34.5
-32.5
-35.3
-33.3
-36
-34
Vdc
Vdc
Vdc
Turn-On Voltage Threshold
Turn-Off Voltage Threshold
Off Converter Input Current
Maximum Input Current
POWER & MAIN OUTPUT (-48V output)
Input Power, Maximum Allowable
Efficiency
VRTN_OUT open load
VRTN_OUT open load
Vin < UVLO voltage
-78
-80
-79.8
-81.8
10
-81.5
-83.5
Vdc
Vdc
mA
A
Pin=300W, Vin=0 to -75V
9.5
300
W
%
%
W
W
Pin=300W, MGMT_PWR/BLUE_LED_PWR no load
Pin=300W, MGMT_PWR=8W, BLUE_LED_PWR =0.5W
Pin=300W, MGMT_PWR=8W, BLUE_LED_PWR=0.5W
97
96
98
97
10
Efficiency
Total Power Dissipation
Management Power, Maximum Deliverable
Module Standby Current
Vin=-36V,
8
Pout=0W, MGMT_PWR=0W, BLUE_LED_PWR=0W
80
45
40
mA
mA
mA
μF
Vin=-48V,
Vin=-75V
Main Output External Output Filter Capacitance
HOT SWAP
200
330
Pin=300W, Vin=-75V, MGMT_PWR=0,
BLUE_LED_PWR=0W
Inrush Transient
0~0.9mS
0.9~3mS
3~100mS
42.5
17
8.5
A
A
A
INPUT A/B FEED LOSS / FUSE ALARM
Alarm ON Input Voltage Threshold
Alarm Off Input Voltage Threshold
Opto Transistor Collector to Emitter Voltage
Opto Transistor Collector to Emitter Dark Current
Opto Transistor Collector Saturation Voltage
HOLD UP CAPACITANCE INTERFACE
Hold-up Capacitor Voltage Accuracy
Hold-up Capacitor Charge Current
Minimum Hold-up Capacitance (C_HOLD)
72V_CAP ON Input Voltage Threshold
72V_CAP OFF Input Voltage Threshold
-36
-37.3
-36.8
-37.5
-37.9
-37.7
40
100
0.3
%
%
Vdc
nA
V
Opto Diode current, Id = 0A
-70
72
24
-74
V
mA
μF
V
47
-36
-36.6
-37
-37.6
-38
-38.6
V
PRELIMINARY DATASHEET
DS_DIM3R3_08292008
2
TECHNICAL SPECIFICATIONS
(TA=25°C, airflow rate=300 LFM, Vin=48Vdc, nominal Vout unless otherwise noted;)
PARAMETER
NOTES and CONDITIONS
DIM3R3300 (Standard)
Min.
Typ.
Max.
Units
MANAGEMENT POWER
Operating Input Voltage
Output Voltage Set-point
Output Voltage (total)
Output Regulation
Continuous
I(MGMT_PWR)=1.25A
Over Vin, load, temperature
-36
-1.5
-3
-48
-75
+1.5
+3
%Vo
%Vo
Line Regulation
Load Regulation
Temperature Regulation
Output Voltage Overshoot
Back-Drive Current
Vi= Vi,min to Vi,max
Io=Io,min to Io,max
Ta=Ta,min to Ta,max
0.05
0.05
0.2
0.2
1
%Vo
%Vo
%Vo
%Vo
mA
3
NA
0
Switching Frequency
MANAGEMENT POWER (3.3V)
Output Ripple and Noise
RMS
Peak-to-peak
Output Current
Over Current Protection
Output Short-circuit Current (RMS)
Hiccup Mode Restart Time
Output Over Voltage Protection
Dynamic Response (20 MHz bandwidth)
Peak Deviation
450
KHz
10μF Tan cap and 1μF ceramic cap
5Hz to 20 MHz bandwidth
20
50
2.4
4
mV
mV
A
A
A
5Hz to 20MHz bandwidth
0
3
Hiccup mode
TBD
10
5
mS
V
Voltage limitation mode
load step is 50%~100%~50%, slew rate is 0.1A/μS
5.4
5
3
800
25
5
%Vo
μS
mS
mS
μF
Settling Time
Turn-On Delay Times
Turn-On Rising Times
External Load Capacitance
MANAGEMENT POWER (5V option)
Output Ripple and Noise
RMS
I(MGMT_PWR)=2.5A
I(MGMT_PWR)=2.5A
Io=Io,min to Io,max
1000
5Hz to 20 MHz bandwidth
5Hz to 20MHz bandwidth
TBD
mVc
mV
Peak-to-peak
Output Current
0
1.6
2.5
A
A
mS
V
Over Current Protection
Hiccup Mode Restart Time
Output Over Voltage Protection
Dynamic Response (20 MHz bandwidth)
Peak Deviation
Hiccup mode
1.9
10
TBD
Voltage limitation mode
load step is 50%~100%~50%, slew rate is 0.1A/μS
3
5
%Vo
Settling Time
TBD
TBD
TBD
μS
mS
mS
μF
Turn-On Delay Times
Turn-On Rising Times
External Load Capacitance
BLUE LED POWER 5V
Operating Input Voltage
Total Output Voltage Range
Output Regulation
I(MGMT_PWR)=1.6A
I(MGMT_PWR)=1.6A
Io=Io,min to Io,max
TBD
Continuous
-36
4.9
-3
-48
5
-75
5.1
3
Vdc
Vdc
%Vo
mV
A
Output Ripple and Noise
Operating Output Current Range
5
0
0.1
PRELIMINARY DATASHEET
DS_DIM3R3_08292008
3
DIM3R3 INTERNAL BLOCK DIAGRAM
PIN FUNCTIONS
PIN NO.
PIN NAME
DESCRIPTION
1
-48_AF
-48V_A Feed (Externally Fused)
2
3
4
5
6
7
8
9
-48_BF
-48V_B Feed (Externally Fused)
VRTN_AF Feed (Externally Fused)
VRTN_BF Feed (Externally Fused)
VRTN_AF
VRTN_BF
ENABLE_AF
ENABLE_BF
SHELF_GND
72V_CAP
ENABLE_AF Feed (Externally Fused) (Short Pin, connected to VRTN_AF on the back plane)
ENABLE_BF Feed (Externally Fused) (Short Pin, connected to VRTN_BF on the back plane)
Shelf / Chassis / Safety Ground
Holdup/Bulk capacitor output voltage (Negative Connection to -48V_OUT)
OR’d and Inrush Protected –48V Output Bus
-48V_OUT
3.3V Isolated Management Power Output (reference to LOGIC_GND)
10
MGMT_PWR
This pin is optional for 5V Isolated Management Power Output (reference to LOGIC_GND)
11
12
13
14
5V BLUE_LED_PWR This pin is optional for 5V Isolated Blue LED Power output (reference to LOGIC_GND)
LOGIC_GND
-48V_ALARM
VRTN_OUT
Logic / Secondary / Isolated Ground
Opto-isolated -48V A/B Feed Loss or Open Fuse Alarm (reference to LOGIC_GND)
OR’d and Inrush Protected VRTN Output Bus
PRELIMINARY DATASHEET
DS_DIM3R3_08292008
4
ELECTRICAL CHARACTERISTICS CURVES
CH 1
CH 1
CH 3
CH 2
CH 3
CH 2
Figure 1: Input voltage turn-on threshold (2mS/div):
CH1: Vin (VRTN_AF reference to -48V_AF, 10V/div).
CH2: Iin (-48V_AF, 2A/div).
Figure 2: Input voltage turn-off threshold (2mS/div):
CH1: Vin (VRTN_AF reference to -48V_AF, 10V/div).
CH2: Iin (-48V_AF, 2A/div).
CH3: VRTN_OUT reference to –48V_OUT (10V/div).
CH3: VRTN_OUT reference to. –48V_OUT (10V/div).
Test conditions:
Test conditions:
(1) Feed A=37Vdc (Von slew rate= 0.1V/ms); Feed B=0Vdc
(2) I(VRTN_OUT)=1A, I(3.3V)=0A,I(5V BLUE_LED_PWR)=0A.
(3) C2=220uF, C_hold=220uF
(1) Feed A=37Vdc (Voff slew rate= 0.3V/ms); Feed B=0Vdc
(2) I(VRTN_OUT)=1A,I(3.3V)=0A,I(5V BLUE_LED PWR)=0A.
(3) C2=220uF, C_hold=220uF
CH 1
CH 4
CH 3
CH 1
CH 2
CH 2
CH 3
Figure 3: Inrush current (2mS/div):
CH1: Vin (VRTN_AF reference to -48V_AF, 10V/div).
CH2: Iin (-48V_AF, 2A/div).
Figure 4: Oring for one feed loss (500µS/div):
CH1: IinA (2A/div)
CH2: IinB (2A/div).
CH3: VRTN_OUT reference to –48V_OUT (10V/div).
CH3: VRTN_OUT reference to –48V_OUT (10V/div).
CH4: VMGMT_PWR (1V/div).
Test conditions:
(1) Feed A=48Vdc, Feed B=0Vdc.
(2) I(VRTN_OUT)=1A, I(3.3V)=0A, I(5V BLUE_LED PWR)=0A.
(3) C2=220uF, C_hold=220uF
Test conditions:
(1) Feed A=60V, Feed B=48V;
(2) Q48SH12025: I(12 Vout)=22.5A, I(3.3V)=2.5A,
I(5V BLUE_LED PWR)=0A.
(3) C2=220uF, C_hold=220uF
PRELIMINARY DATASHEET
DS_DIM3R3_08292008
5
ELECTRICAL CHARACTERISTICS CURVES
CH1
CH4
CH2
CH2
CH3
CH3
CH1
Figure 5: Hold up performance (5mS/div):
CH1: Vin (VRTN_AF reference to -48V_AF, 10V/div).
CH2: Iin (2A/div).
Figure 6: -48V_ALARM with loss of Feed (20mS/div):
CH1: VinA (VRTN_AF reference to -48V_AF, 20V/div).
CH2: VinB (VRTN_BF reference to -48V_BF, 20V/div).
CH3: -48V_ALARM (2V/div)
CH3: 12V Vout (5V/div).
CH4: VRTN_OUT reference to –48V_OUT (10V/div).
Test conditions:
Test conditions:
(1) Feed A turn off from 48Vdc; Feed B=48Vdc.
(2) Q48SH12025: I(12V Out)=22.5A, I(3.3V)=2.5A,
I(5V BLUE_LED PWR)=0A.
(1) Feed A=48Vdc; Feed B=0Vdc
(2) Q48SH12025: I(12V Out)=22.5A, I(3.3V)=2.5A,
I(5V BLUE_LED PWR)=0A.
(3) C2=220uF, C_hold=220uF
(3) C2=220uF, C_hold=470uF X4
CH3
CH2
100
99
98
97
96
38Vin
95
94
93
92
91
90
48Vin
75Vin
30
CH1
10
20
40
50
60
70
80
90 100
OUTPUT CURRENT(A%)
Figure 7: Efficiency vs. load current for minimum, nominal,
and maximum input voltage at 25°C:
Figure 8: MGMT_PWR (3.3V) and BLUE_LED_PWR (5V)
start up waveform (10mS/div):
CH1: VinA (VRTN_AF referenced to -48V_AF, 50V/div).
CH2: V(MGMT_PWR) (1V/div);
Test conditions:.
(1) I(MGMT_PWR)=0A; I(5V BLUE_LED PWR)=0A;
(2) C2=220uF, C_hold=220uF
CH3: V(5V BLUE_LED_PWR) (1V/div)
Test conditions:
(1) Feed A=48Vdc; Feed B=0Vdc
(2) I(VRTN_OUT)=1A,I(3.3V)=2.5A,
I(5V BLUE_LED PWR)=0.1A
(3) C2=220uF, C_hold=220uF
PRELIMINARY DATASHEET
DS_DIM3R3_08292008
6
ELECTRICAL CHARACTERISTICS CURVES
CH 1
CH 1
CH 2
CH 2
Figure 9: MGMT_PWR (3.3V) and BLUE_LED_PWR (5V)
output ripple/noise (2uS/div):
Figure 10: MGMT_PWR (3.3V) dynamic response
(1mS/div):
CH1: Vo, MGMT_PWR (20mV/div).
CH2: Vo, 5V BLUE_LED_PWR (20mV/div).
CH1: Vo, MGMT_PWR (50mV/div).
CH2: Io, MGMT_PWR (1A/div)
Test conditions:
Test conditions:
(1) Feed A=48Vdc; Feed B=0Vdc
(2) I(3.3V)=1.25A,I(5V BLUE_LED_PWR)=0.1A
I(VRTN_OUT)=6.3A
(1) Feed A=48Vdc; Feed B=0Vdc
(2) 3.3V MGMT_PWR load current (50%-75%-50% of Io,max,
di/dt = 0.1A/µs), I(VRTN_OUT)=6.3A.
(3) C2=220uF, C_hold=220uF
(3) C2=220uF, C_hold=220uF
PRELIMINARY DATASHEET
DS_DIM3R3_08292008
7
APPLICATION CIRCUITS
TYPICAL VALUES FOR ABOVE COMPONENTS:
POSITION
F1,F2
F3,F4
F5,F6
R1,R2
R3
VALUE
NOTE
1A, FUSE
15A, FUSE
15A, FUSE
15Ω, RESISTOR
7.5KΩ, RESISTOR
10μF, CAP
C1
C2
200~330μF, CAP
C3
Defined by DC/DC converter application note
C_HOLD
for the definition of parameters, please see page 10
2*Power*T _ HLDP
72V 2 −Vth2
PRELIMINARY DATASHEET
DS_DIM3R3_08292008
8
EMI Filtering
FEATURES AND DESIGN
CONSIDERATIONS
An internal EMI filter is designed for the ATCA board to
meet the system conducted emission requirements of
CISPR 22 Class B when used with Delta DC/DC
converters.
Introduction
The DIM3R3/050 module is designed to simplify the task
and reduce the board space of an ATCA (Advanced
Telecommunications Computing Architecture) power
entry distribution requirements in the system board.
Figure 17 shows the EMI performance of DIM3R3 when
it worked with Delta power module Q48SH12025NRFA
(36~75Vin, 12V/25A output Quarter brick). It meets
CISPR 22 Class B requirement.
The main functionality of the module is to provide dual,
redundant -48V A/B Feed OR’ing, inrush protection for
hot swap capability, EMI filtering to attenuate the noise
generated by the downstream DC/DC converters, and a
72V output voltage for charging the holdup capacitor.
The module also has a management power supply
which provides an 8W, 3.3V or 5V management power
and/or a 5V/100mA output (optional) to power the blue
LED per PICMG 3.0 requirement.
The module provides A/B feed/fuse open alarm, over
current protection, over voltage protection, and over
temperature protection. It also provides input under
voltage lock-out and input reverse polarity protection.
Figure 11: EMI test result with Q48SH12025NRFA:
A/B Feed OR’ing
Holdup
(72V_CAP)
Capacitor
Charging
Current
To improve the total power distribution efficiency, four
internal MOSFETs are used to function as the OR’ing
diodes. A control circuit is designed to keep about
100mV voltage drop across MOSFET. During full load
operation, the MOSFETs are fully turned on. During light
load, the MOSFETs work under a high Rdson condition.
If the output current decreases to zero, the MOSFETs
will be turned off. This design provides module a reverse
voltage sustain function. The module shall not be
damaged from reverse polarity connection in the event
of mis-wiring of either input feeds at the shelf input
terminals. Furthermore, a fast shut down circuit is
designed for the negative current case. This design
protects the common DC bus against hard short faults at
the sourcing power supply output.
An off line holdup capacitor (C_HLDP) is needed to
store energy for the holdup time requirement. C_HLDP
is charged to 72V (+/- 3% tolerance). For a fixed energy
storage requirement, high capacitor voltage reduces
capacitor capacitance and size. A constant current
circuit charges C_HLDP before its voltage reaches the
high limitation and isolates it from power train circuit.
The discharge switch will turn on if both A&B feeds have
dropped below –38V (typical). C_HLDP will be
connected to power train and provided the energy for
system operation.
C_HLDP is calculated by the following equation:
Hot Swap Functionality
2* Power *T _ HLDP
C _ HLDP =
72V 2 −Vth2
The hot-swap function is designed to limit the inrush
current charged to the bulk capacitor of the down stream
bus converter. The current value and duration comply
with the PICMG 3.0’s Inrush Transient specs.
Where Power is the input power to the downstream
DC/DC converter; T_HLDP is the holdup time
requirement; Vth is the minimum input voltage threshold
of the downstream DC/DC converter.
Although the inrush current for bulk capacitor is under
control, special attentions need to be paid to the current
for EMI filter because this circuit is in front of hot-swap
circuit.
PRELIMINARY DATASHEET
DS_DIM3R3_08292008
9
FEATURES AND DESIGN
CONSIDERATIONS (CONTINUED)
Transient Over Voltage Protection
The PICMG 3.0 requires the module work normally
under 200V/5μS and 100V/10μS input voltage transient.
DIM3R3/050 can meet the requirement. An internal TVS
with 80V/1500W peak pulse power rating will suppress
the 200V transient voltage. For the 100V pulse voltage,
the power train impedance will damp it below internal
components rating without shut down the module. When
input voltage of the module is higher than 81.8V, the
module will be turned off. The module will restart when
the input voltage drop down to 79.8V.
The PICMG 3.0’s requirements for the 0 Vdc transient is
5mS with 50V/ms fall slew rate and 12.5 V/ms rise slew
rate. This requirement will lead to a 9.3ms T_HLDP
requirement assuming power is interrupted at -43Vdc
(Vth).
Considering power output is 300W, Vth is 43V,
2*300*9.3
722 − 432
C _ HLDP =
=1672(uF)
Management Power and Blue_LED Power
When the input voltage is at the threshold of discharge,
C_HLDP will go off line and the charge pump will
recharge it to 72V.
The module contains two isolated DC output. The first
output provides up to 8W of 3.3V (DIM3R3) or 5.0V
(DIM050)
management
power
(reference
to
The discharge resistor for C_HLDP is not required,
because there is sufficient standby current in the module
to bleed the holdup capacitors from 75V to 60V within 1
second as specified in the PICMG 3.0. Furthermore a
bleed resistor will induce extra loss of the MOSFET of
the charging circuit.
LOGIC_GND). This power is used to power the IPM
controller for the ATCA board or to power up system
controller for other applications. The second isolated
output, 5V/100mA, is used to power the Blue LED per
PICMG 3.0 requirement.
The management power is available as soon as the
input voltage levels are within –36Vdc to –75Vdc. The
output is short circuit and over voltage protected. The
module is in a hiccup mode under an OCP or short
output condition. The output voltage will keep constant
under over voltage status. No additional output
capacitors are required, but a 22µF tantalum/ceramic
and a 0.01µF to 0.1µF ceramic capacitors are highly
recommended to reduce the switching ripple and noise.
Higher output capacitance may be required in case of
large input line or output load transient conditions.
Over-Current Protection
DIM3R3/050 provides two over current protection levels.
When the output current exceeds the low current limit
level, the current will be kept for a period of time before
the module is shut down. After a fixed delay time, the
module will try to restart. If the output current exceeds
the high current limit level, the module will shut down
immediately. Then it will go through the same restarting
procedure.
A/B Feed / Fuse Alarm (-48V_ALARM)
The input feeds A and B are monitored. The module will
send an opto-isolated signal if any of the feed is below
the voltage threshold (typical 35V). Therefore, the loss
of any A or B feed can be detected. The opto coupler
transistor on state indicates a normal status and off
state indicates a fault condition.
Input Under Voltage Lockout
The input under-voltage lockout prevents the module from
being damaged by low input voltage. When the input
voltage is lower than its threshold voltage, the module will
be turned off. The lockout occurs between -33.3V to
-35.3V.
PRELIMINARY DATASHEET
DS_DIM3R3_08292008
10
THERMAL CONSIDERATIONS
THERMAL CURVES
Thermal management is an important part of the system
design. To ensure proper, reliable operation, sufficient
cooling of the power module is needed over the entire
temperature range of the module. Convection cooling is
usually the dominant mode of heat transfer.
Hence, the choice of equipment to characterize the
thermal performance of the power module is a wind
tunnel.
Thermal Testing Setup
Delta’s DC/DC power modules are characterized in
heated vertical wind tunnels that simulate the thermal
environments encountered in most electronics
equipment. This type of equipment commonly uses
vertically mounted circuit cards in cabinet racks in which
the power modules are mounted.
Figure 13: Temperature measurement location
* The allowed maximum hot spot temperature is defined at
117°C
DIM3R3300(Standard) Output Current vs. Ambient Temperature and Air Velocity
Output Current(A)
@Vin = 48V; 3.3V&5V=8W (Transverse Orientation)
7
The following figure shows the wind tunnel
characterization setup. The power module is mounted
on a test PWB and is vertically positioned within the
wind tunnel. The space between the neighboring PWB
and the top of the power module is constantly kept at
6.35mm (0.25’’).
6
5
Natural
Convection
4
100LFM
200LFM
3
300LFM
2
PWB
MODULE
FACING PWB
400LFM
1
500LFM
600LFM
60
0
25
30
35
40
45
50
55
65
70
75
80
85
Ambient Temperature (℃)
Figure 14: Output current vs. ambient temperature and air
velocity @Vin=48V (Transverse Orientation, Pout2 = 8 W
(Vout2=3.3V), Pout3 = 0.5 W (Vout3=5V)
AIR VELOCITY
AND AMBIENT
TEMPERATURE
MEASURED BELOW
THE MODULE
DIM3R3300(Standard) Output Current vs. Ambient Temperature and Air Velocity
50.8 (2.0”)
Output Current(A)
@Vin = 48V; 3.3V&5V=0W (Transverse Orientation)
7
AIR FLOW
6
Natural
Convection
5
4
3
2
1
0
12.7 (0.5”)
100LFM
Note: Wind Tunnel Test Setup Figure Dimensions are in millimeters and (Inches)
Figure 12: Wind tunnel test setup
Thermal Derating
Heat can be removed by increasing airflow over the
module. To enhance system reliability, the power
module should always be operated below the maximum
operating temperature. If the temperature exceeds the
maximum module temperature, reliability of the unit may
be affected.
25
30
35
40
45
50
55
60
65
70
75
80
85
℃
Ambient Temperature (
)
Figure 15: Output current vs. ambient temperature and air
velocity @Vin=48V (Transverse Orientation, Pout2 = 0 W
(Vout2=3.3V), Pout3 = 0 W (Vout3=5V)
PRELIMINARY DATASHEET
DS_DIM3R3_08292008
11
MECHANICAL DRAWING
Pin No
Name
Function
1
2
-48V_AF
-48V_BF
-48V_A Feed (Externally Fused)
-48V_B Feed (Externally Fused)
3
VRTN_AF
VRTN_AF Feed (Externally Fused)
4
VRTN_BF
VRTN_BF Feed (Externally Fused)
5
6
7
8
ENABLE_AF
ENABLE_BF
SHELF_GND
72V_CAP
ENABLE_AF Feed (Externally Fused)
ENABLE_BF Feed (Externally Fused)
Shelf / Chassis / Safety Ground
Holdup/bulk capacitor output voltage (Negative Connection to -48V_OUT)
OR’d and inrush protected –48V output bus
9
-48V_OUT
10
11
12
13
14
MGMT_PWR
5V BLUE LED_PWR
LOGIC_GND
-48V_ALARM
VRTN_OUT
3.3V or 5V Isolated Management Power Output (reference to LOGIC_GND)
This pin is optional for 5V Isolated Blue LED Power output (reference to LOGIC_GND)
Logic / Secondary / Isolated Ground
Opto-isolated -48V A/B Feed Loss or Open Fuse Alarm (reference to LOGIC_GND)
OR’d and Inrush Protected VRTN Output Bus
Pin Specification:
Pins 1-14
1.00mm (0.040”) diameter
All pins are copper alloy with Tin plating.
PRELIMINARY DATASHEET
DS_DIM3R3_08292008
12
PART NUMBERING SYSTEM
DIM
3R3
300
S
F
A
Product Series Management Output Power
Power
Pin
Length
Option Code
DIM - ATCA Input 3R3 - with 3.3V
300 - 300W
S - 0.150” F- RoHS 6/6
(Lead Free)
A - with management power (3.3V or 5V) on Pin 10
only, no Pin 11
Module
050 - with 5V
B - with management power (3.3V or 5V) on Pin 10
and Blue LED power (5V) on pin 11
MODEL LIST
OUTPUT 2 (Pin10) OUTPUT 3 (Pin11)
Management Power Blue LED Power
MODEL NAME
INPUT
OUTPUT 1
Eff @ 100% Input Power
DIM3R3300SFA 36V~75V 300W
DIM3R3300SFB 36V~75V 300W
DIM050300SFA 36V~75V 300W
36V~75V
36V~75V
36V~75V
3.3V/2.4A
3.3V/2.4A
5V/1.6A
NA
5V/0.1A
NA
98％
98％
98％
CONTACT: www.delta.com.tw/dcdc
USA:
Europe:
Asia & the rest of world:
Telephone:
Phone: +41 31 998 53 11
Fax: +41 31 998 53 53
Email: DCDC@delta-es.com
Telephone: +886 3 4526107 ext 6220
Fax: +886 3 4513485
Email: DCDC@delta.com.tw
East Coast: (888) 335 8201
West Coast: (888) 335 8208
Fax: (978) 656 3964
Email: DCDC@delta-corp.com
WARRANTY
Delta offers a two (2) year limited warranty. Complete warranty information is listed on our web site or is available upon
request from Delta.
Information furnished by Delta is believed to be accurate and reliable. However, no responsibility is assumed by Delta for its
use, nor for any infringements of patents or other rights of third parties, which may result from its use. No license is granted
by implication or otherwise under any patent or patent rights of Delta. Delta reserves the right to revise these specifications
at any time, without notice.
PRELIMINARY DATASHEET
DS_DIM3R3_08292008
13
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