FEATURES
High Efficiency:
94% @ 12Vin, 5V/60A out
Wide input range: 4.5V~13.8V
Output voltage programmable from
0.6Vdc to 5Vdc via external resistors
No minimum load required
Fixed frequency operation
Input UVLO, output OCP, OVP.
Remote On/Off (Positive logic)
Power Good Function
RoHs completed
ISO 9001, TL 9000, ISO 14001, QS9000,
OHSAS18001 certified manufacturing
facility
Delphi D12S300-1 D/E Non-Isolated Point of
Load DC/DC Modules: 4.5V~13.8Vin, 0.6V~5Vout,
60A
The
D12S300-1
series,
4.5~13.8V
input,
single
output,
non-isolated point of load DC/DC converters are the latest offering from
a world leader in power systems technology and manufacturing -- Delta
Electronics, Inc. The D12S300-1 series product provides up to 60A and
the output can be resistor trimmed from 0.6Vdc to 5Vdc. It provides a
very cost effective point of load solution. With creative design
technology and optimization of component placement, these converters
possess outstanding electrical and thermal performance, as well as
extremely high reliability under highly stressful operating conditions.
The D12S300-1 series is a voltage mode controlled Buck topology. The
APPLICATIONS
output can be trimmed in the range of 0.6Vdc to 5Vdc by an external
Telecom/DataCom
resistor from Trim pin to Ground. The converter can be turned ON/OFF
Distributed power architectures
by remote control with positive on/off (ENABLE pin) logic. The
Servers and workstations
converter DC output is disabled when the signal is driven low. When
LAN/WAN applications
Data processing applications
this pin is floating the module will turn on. The converter can protect
itself by entering hiccup mode against over current and short circuit
condition. Also, the converter will shut down when an over voltage
protection is detected.
DATASHEET
DS_D12S300-1_07212016
TECHNICAL SPECIFICATIONS
(Ambient Temperature=25°C, minimum airflow=100LFM, nominal Vin=12Vdc unless otherwise specified.)
PARAMETER
NOTES and CONDITIONS
D12S300-1
Min.
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Operating Temperature
Storage Temperature
INPUT CHARACTERISTICS
Operating Input Voltage
Input Under-Voltage Lockout
Turn-On Voltage Threshold
Turn-Off Voltage Threshold
Lockout Hysteresis Voltage
Maximum Input Current
No-Load Input Current
Off Converter Input Current
Input Reflected-Ripple Current
Input Voltage Ripple Rejection
Output Short-Circuit Input Current
OUTPUT CHARACTERISTICS
Output Voltage Adjustment Range
Output Voltage Set Point
Output Voltage Regulation
Over Load
Over Line
Total output range
Output Voltage Ripple and Noise
Peak-to-Peak
RMS
Output Current Range
Output Voltage Under-shoot at Power-Off
Output short-circuit current, RMS value
Output DC Current-Limit Inception
Over Voltage Protection
DYNAMIC CHARACTERISTICS
Output Dynamic Load Response
Transient Response
Transient Response
Transient Response
Transient Response
Transient Response
Transient Response
Transient Response
Transient Response
Settling Time
Turn-On Transient
Rise Time
Turn-on Delay (Power)
Turn-on Delay (Remote on/off) )
Turn on & turn off Transient (overshoot)
Minimum Output Capacitance
EFFICIENCY
Vo=0.6V
Vo=0.9V
Vo=1.2V
Vo=1.5V
Vo=1.8V
Vo=2.5V
Vo=3.3V
Vo=5.0V
SINK EFFICIENCY
Vo=5.0V
FEATURE CHARACTERISTICS
Switching Frequency
ON/OFF Control
Logic High
Logic Low
Remote Sense Range
Power Good
Output to Power Good Delay Time
GENERAL SPECIFICATIONS
Calculated MTBF
Weight
Over-Temperature Shutdown
Continuous
Refer to Fig.32 for the measuring point
Max.
Units
-0.3
0
-40
13.8
70
125
Vdc
°C
°C
4.5
13.8
Vdc
28
600
30
Vdc
Vdc
V
A
mA
mA
mA
dB
mA
5.0
+0.8
V
%Vo
+0.5
+0.2
%Vo
%Vo
+1.5
%Vo
50
15
60
100
Without adjust resistor (Ren)
Without adjust resistor (Ren)
Typ.
4.38
3.88
0.4
Vin=12V, Vout=5V, Io=60A
Vin=12V, Vout=5V, Io=0A
Remote OFF,Vin=12V
P-P thru 2uH inductor 5Hz to 20MHz
120Hz
Vin=12V, Vout=5V
530
24
30
50
160
0.6
-0.8
With a 0.1% trim resistor, measured at remote sense pin.
Io=Io_min to Io_max, measured at remote sense pin.
Vin=Vin_min to Vin_max, measured at remote sense pin.
Over load, line, temperature regulation and set point, measured at remote
sense pin.
5Hz to 20MHz bandwidth
Full Load, 20uF Tan cap&1uF ceramic, total input & output range
Full Load, 10uF Tan cap&1uF ceramic, total input & output range
-0.5
-0.2
0.1
0.1
-1.5
20
8
125
180
130
mV
mV
A
mV
A
%
%
110
120
120
120
100
100
100
100
20
160
170
170
170
150
150
150
150
60
mV pk
mV pk
mV pk
mV pk
mV pk
mV pk
mV pk
mV pk
µs
1
4
0.4
0.5%
2
10
2
ms
ms
ms
Vo
µF
0
Vin=12V, Turn OFF
12Vin, 5Vout
Hiccup mode
Hiccup mode
10
110
120
12Vin, 1uF ceramic, 10uF Tan cap
Output step load=25% load for all range Slew rate=10A/µs
Output step load=25% load for all range Slew rate=10A/µs
Output step load=25% load for all range Slew rate=10A/µs
Output step load=25% load for all range Slew rate=10A/µs
Output step load=25% load for all range Slew rate=10A/µs
Output step load=25% load for all range Slew rate=10A/µs
Output step load=25% load for all range Slew rate=10A/µs
Output step load=25% load for all range Slew rate=10A/µs
0.6 Vo
0.9 Vo
1.2 Vo
1.5 Vo
1.8 Vo
2.5Vo
3.3 Vo
5.0 Vo
From 10% to 90% of Vo
Vin=12V, Io=min-max. (within 10% of Vo)
Vin=12V, Io=min-max. (within 10% of Vo)
ESR≥ 1mΩ
0
Vin=12V, Io=60A
Vin=12V, Io=60A
Vin=12V, Io=60A
Vin=12V, Io=60A
Vin=12V, Io=60A
Vin=12V, Io=60A
Vin=12V, Io=60A
Vin=12V, Io=60A
76
81
84
86
88
90
91
92
5000
78
83
86.5
88.5
90.0
92.1
93.4
94.5
%
%
%
%
%
%
%
%
Vin=12V, Io=60A
93
%
Fixed, Per phanse
Positive logic (internally pulled high)
Module On (or leave the pin open)
Module Off
500
KHz
1.3
-0.3
Vo is out off +/-10% Vo
Vo is within +/-10% Vo
0
4.0
0.1
25℃, 300LFM, 80% load
Refer to Figure 32 for
the measuring point
TBD
26.5
115
4.2
0.7
0.5
0.4
5.1
2
V
V
V
V
V
ms
Mhours
grams
°C
DS_D12S300-1_07212016
2
ELECTRICAL CHARACTERISTICS CURVES
100
100
5Vin
12Vin
13.8Vin
5Vin
95
Efficiency (%)
Efficiency (%)
95
90
85
80
75
90
85
80
70
0
10
20
30
40
50
60
0
10
Output Current, Io (A)
Figure 1: Converter efficiency vs. output current
(0.9V output voltage, 5V&12V input)
20
30
40
50
Output Current, Io (A)
60
Figure 2: Converter efficiency vs. output current
(1.2V output voltage, 5V&12V input)
100
100
5Vin
12Vin
13.8Vin
95
Efficiency (%)
95
Efficiency (%)
13.8Vin
75
70
90
85
80
90
85
80
75
75
70
70
0
10
20
30
40
50
Output Current, Io (A)
95
Efficiency (%)
95
90
85
80
12Vin
20
30
40
13.8Vin
50
60
Figure 4: Converter efficiency vs. output current
(2.5V output voltage, 5V&12V input)
100
7Vin
10
12Vin
Output Current, Io (A)
100
75
5Vin
0
60
Figure 3: Converter efficiency vs. output current
(1.8V output voltage, 5V&12V input)
Efficiency (%)
12Vin
90
85
80
9Vin
75
13.8Vin
12Vin
13.8Vin
70
70
0
10
20
30
40
50
Output Current, Io (A)
Figure 5: Converter efficiency vs. output current
(3.3V output voltage, 12V input)
60
0
10
20
30
40
50
60
Output Current, Io (A)
Figure 6: Converter efficiency vs. output current
(5.0V output voltage, 12V input)
DS_D12S300-1_07212016
3
ELECTRICAL CHARACTERISTICS CURVES (CON.)
Figure 7: Output ripple & noise at 12Vin, 0.9V/60A out (5mv/div,
1uS/div)
Figure 8: Output ripple & noise at 12Vin, 1.2V/60A out (5mv/div,
1uS/div)
Figure 9: Output ripple & noise at 12Vin, 1.8V/60A out
(5mv/div, 1uS/div)
Figure 10: Output ripple & noise at 12Vin, 2.5V/60A out (5mv/div,
1uS/div)
Figure 11: Output ripple & noise at 12Vin, 3.3V/60A out (10mv/div,
1uS/div)
Figure 12: Output ripple & noise at 12Vin, 5.0V/60A out (10mv/div,
1uS/div)
DS_D12S300-1_07212016
4
ELECTRICAL CHARACTERISTICS CURVES (CON.)
Figure 13: Turn on delay time at 12Vin, 0.9V/60A out (500uS/div)
Ch2: Vo, Ch3: Enable, Ch4:PG
Figure 14: Turn on delay time at 12Vin, 1.2V/60A out (500uS/div)
Ch2: Vo, Ch3: Enable, Ch4:PG
Figure 15: Turn on delay time at 12Vin, 1.5V/60A out (500uS/div)
Ch2: Vo, Ch3: Enable, Ch4:PG
Figure 16: Turn on delay time at 12Vin, 1.8V/60A out (500uS/div)
Ch2: Vo, Ch3: Enable, Ch4:PG
Figure 17: Turn on delay time at 12Vin, 2.5V/60A out (500uS/div)
Ch2: Vo, Ch3: Enable, Ch4:PG
Figure 18: Turn on delay time at 12Vin, 3.3V/60A out (500uS/div)
Ch2: Vo, Ch3: Enable, Ch4:PG
DS_D12S300-1_07212016
5
Figure 19: Typical transient response to step load change at
10A/μS from 50%to 100% and 100% to 50 of Io,
max at 12Vin, 0.9V out (0.100V/div)
Figure 20: Typical transient response to step load change at
10A/μS from 50%to 100% and 100% to 50 of Io,
max at 12Vin, 1.2V out (0.100V/div)
Figure 21: Typical transient response to step load change at
10A/μS from 50%to 100% and 100% to 50 of Io,
max at 12Vin, 1.8V out (0.100V/div)
Figure 22: Typical transient response to step load change at
10A/μS from 50%to 100% and 100% to 50 of Io,
max at 12Vin, 2.5V out (0.100V/div)
Figure 23: Typical transient response to step load change at
10A/μS from 50%to 100% and 100% to 50 of Io,
max at 12Vin, 3.3V out (0.100V/div)
Figure 24: Typical transient response to step load change at
10A/μS from 50%to 100% and 100% to 50 of Io,
max at 12Vin, 5.0V out (0.100V/div)
DS_D12S300-1_07212016
6
DESIGN CONSIDERATIONS
FEATURES DESCRIPTIONS
The D12S300-1 uses a three phase and voltage mode
controlled buck topology. The output can be trimmed in
the range of 0.6Vdc to 5Vdc by a resistor from Trim pin
to Ground.
Enable (On/Off)
The converter can be turned ON/OFF by remote control.
Positive on/off (ENABLE pin) logic implies that the
converter DC output is enabled when the signal is driven
high (greater than 1.2V) or floating and disabled when
the signal is driven low (below 0.7V). Negative on/off
logic is optional.
The converter provides an open collector Power Good
signal. The power good signal is pulled low when output
is not within ±10% of Vout or Enable is OFF.
The converter can protect itself by entering hiccup mode
against over current and short circuit condition.
Safety Considerations
The ENABLE (on/off) input allows external circuitry to
put the D12S300-1 converter into a low power
dissipation (sleep) mode. Positive ENABLE is available
as standard.
Positive ENABLE units of the D12S300-1 series are
turned on if the ENABLE pin is high or floating. Pulling
the pin low will turn off the unit. With the active high
function, the output is guaranteed to turn on if the
ENABLE pin is driven above 1.3V. The output will turn
off if the ENABLE pin voltage is pulled below 0.7V.
The ENABLE input can be driven in a variety of ways as
shown in Figures 25 and 26. If the ENABLE signal
comes from the primary side of the circuit, the ENABLE
can be driven through either a bipolar signal transistor
(Figure 25). If the enable signal comes from the
secondary side, then an opto-coupler or other isolation
devices must be used to bring the signal across the
voltage isolation (please see Figure 26).
It is recommended that the user to provide a fuse in the
input line for safety. The output voltage set-point and the
output current in the application could define the
amperage rating of the fuse.
Unit
Vin
Vout
Enable
Trim
GND
GND
Figure 25: Enable Input drive circuit for D12S300-1 series
Unit
Vin
Vout
Enable
Trim(+)
GND
GND
Ren
Figure 26: Enable input drive circuit example with isolation.
DS_D12S300-1_07212016
7
FEATURES DESCRIPTIONS (CON.)
Input Under-Voltage Lockout
Output Voltage Programming
The input under-voltage lockout prevents the converter
from being damaged while operating when the input
voltage is too low. The lockout occurs between 4.1V to
4.5V.
The output voltage of the NE series is trimmable by
connecting an external resistor between the trim pin and
output ground as shown Figure 28 and the typical trim
resistor values are shown in Table 1.
Over-Current and Short-Circuit Protection
Unit
The D12S300-1 series modules have non-latching
over-current and short-circuit protection circuitry. When
over current condition occurs, the module goes into the
non-latching hiccup mode. When the over-current
condition is removed, the module will resume normal
operation.
Vin
Vout
Enable
Trim(+)
Rtrim
An over current condition is detected by measuring the
voltage drop across the inductor. The voltage drop across
the inductor is also a function of the inductor’s DCR.
GND
Trim(-)
Figure 28: Trimming Output Voltage
Note that none of the module specifications are
guaranteed when the unit is operated in an over-current
condition.
Remote Sense
The D12S300-1 provides Vo remote sensing to achieve
proper regulation at the load points and reduce effects of
distribution losses on output line. In the event of an open
remote sense line, the module shall maintain local sense
regulation through an internal resistor. The module shall
correct for a total of 0.6V of loss. The remote sense connects
as shown in Figures 27.
The D12S300-1 module has a trim range of 0.6V to 5V.
The trim resistor equation for the D12S300-1 is:
Rs ()
1200
Vout 0.6
Vout is the output voltage setpoint
Rs is the resistance between Trim and Ground
Rs values should not be less than 270Ω
Output Voltage
Rs (Ω)
0.6V
+0.9V
+1.2V
+1.5 V
+1.8V
+2.5 V
+3.3 V
+5.0V
open
4K
2K
1.33K
1K
631.6
444.4
272.7
Table 1: Typical trim resistor values
Power Good
Figure 27 : Circuit configuration for remote sense
The converter provides an open collector signal called Power
Good. This output pin uses positive logic and is open
collector. This power good output is able to sink 5mA and set
high when the output is within ±10% of output set point. The
power good signal is pulled low when output is not within
±10% of Vout or Enable is OFF.
DS_D12S300-1_07212016
8
FEATURES DESCRIPTIONS (CON.)
Current Sharing (optional)
The parallel operation of multiple converters is available
with the D12S300-1 E. The converters will current share
to be within +/- 10% of each other. In additional to
connect the I-Share pin together for the current sharing
operation, the remote sense lines of the paralleled units
must be connected at the same point for proper
operation. Also, units should be turned on/off by enable
at the same time. Hot plugging is not recommended. The
current sharing diagram show in figure 29.
Voltage Margining Adjustment
Output voltage margin adjusting can be implemented in
the ND modules by connecting a resistor, Rmargin-up,
from the Trim pin to the Ground for margining up the
output voltage. Also, the output voltage can be adjusted
lower by connecting a resistor, Rmargin-down, from the
Trim pin to the voltage source Vt. Figure 30 shows the
circuit configuration for output voltage margining
adjustment.
Figure 30: Circuit configuration for output voltage margining
Output Capacitance
There are internal output capacitors on the D12S300-1
series modules. Hence, no external output capacitor is
required for stable operation.
Reflected Ripple Current and Output Ripple and
Noise Measurement
The measurement set-up outlined in Figure 31 has been
used for both input reflected/ terminal ripple current and
output voltage ripple and noise measurements on
D12S300-1 series converters.
Input reflected current measurement point
Ltest
DC-DC Converter
Vin+
Cs
Figure 29: Current sharing diagram
Cin
Load
1uF
Ceramic
10uF
Tan
Output voltage ripple noise measurement point
Cs=330μF OS-CON cap x 1, Ltest=1μH, Cin=330μF OS-CON
cap x 1
Figure 31: Input reflected ripple/ capacitor ripple current and
output voltage ripple and noise measurement setup for
D12S300-1
DS_D12S300-1_07212016
9
THERMAL CONSIDERATION
THERMAL CURVES (D12S300-1)
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.
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’’).
Figure 33: Temperature measurement location*
The allowed maximum hot spot temperature is defined at 115℃
D12S300 A_S0 Output Current vs. Ambient Temperature and Air Velocity
@ Vin =12V, Vout =0.9V (Worse Orientation)
Output Current (A)
70
60
50
100LFM
40
200LFM
30
300LFM
Thermal Derating
500LFM
20
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.
PWB
FACING PWB
MODULE
400LFM
600LFM
10
0
25
35
45
55
65
75
85
Ambient Temperature (℃)
Figure 34: Output current vs. ambient temperature and air
velocity @Vin=12V, Vout=0.9V (Worse Orientation)
D12S300 A_S0 Output Current vs. Ambient Temperature and Air Velocity
@ Vin =12V, Vout =1.2V (Worse Orientation)
Output Current (A)
70
60
50
100LFM
40
AIR VELOCITY
AND AMBIENT
TEMPERATURE
MEASURED BELOW
THE MODULE
200LFM
30
50.8 (2.0”)
300LFM
500LFM
400LFM
600LFM
20
AIR FLOW
10
0
25
12.7 (0.5”)
Note: Wind Tunnel Test Setup Figure Dimensions are in millimeters and (Inches)
35
45
55
65
75
85
Ambient Temperature (℃)
Figure 35: Output current vs. ambient temperature and air
velocity@ Vin=12V, Vout=1.2V (Worse Orientation)
Figure 32: Wind tunnel test setup
DS_D12S300-1_07212016
10
THERMAL CURVES (D12S300-1)
D12S300 A_S0 Output Current vs. Ambient Temperature and Air Velocity
@ Vin =12V, Vout =3.3V(Worse Orientaion)
D12S300 A_S0 Output Current vs. Ambient Temperature and Air Velocity
@ Vin =12V, Vout =1.5V (Worse Orientation)
Output Current (A)
Output Current (A)
70
70
60
60
50
50
100LFM
100LFM
40
40
200LFM
200LFM
30
30
300LFM
500LFM
300LFM
500LFM
400LFM
600LFM
20
20
400LFM
600LFM
10
10
0
0
25
35
45
55
65
75
85
Ambient Temperature (℃)
Figure 36: Output current vs. ambient temperature and air
velocity@ Vin=12V, Vout=1.5V (Worse Orientation)
25
35
45
55
65
75
85
Ambient Temperature (℃)
Figure 39: Output current vs. ambient temperature and air
velocity@ Vin=12V, Vout=3.3V (Worse Orientation)
D12S300 A_S0 Output Current vs. Ambient Temperature and Air Velocity
@ Vin =12V, Vout =1.8V (Worse Orientation)
D12S300 A_S0 Output Current vs. Ambient Temperature and Air Velocity
@ Vin =12V, Vout =5V (Worse Orientation )
Output Current (A)
Output Current (A)
70
70
60
60
50
50
100LFM
100LFM
40
40
200LFM
200LFM
30
30
500LFM
300LFM
300LFM
500LFM
400LFM
600LFM
20
20
600LFM
400LFM
10
10
0
0
25
35
45
55
65
75
85
Ambient Temperature (℃)
Figure 37: Output current vs. ambient temperature and air
velocity @Vin=12V, Vout=1.8V (Worse Orientation)
25
35
45
55
65
75
85
Ambient Temperature (℃)
Figure 40: Output current vs. ambient temperature and air
velocity@ Vin=12V, Vout=5V (Worse Orientation)
D12S300 A_S0 Output Current vs. Ambient Temperature and Air Velocity
@ Vin =12V, Vout =2.5V(Worse Orientation)
Output Current (A)
70
60
50
100LFM
40
200LFM
30
300LFM
500LFM
400LFM
600LFM
20
10
0
25
35
45
55
65
75
85
Ambient Temperature (℃)
Figure 38: Output current vs. ambient temperature and air
velocity @Vin=12V, Vout=2.5V (Worse Orientation)
DS_D12S300-1_07212016
11
MECHANICAL DRAWING
VERTICAL
DS_D12S300-1_07212016
12
PART NUMBERING SYSTEM
D
12
S
300
Type of Product
Input Voltage
Number of Outputs
Product Series
Option Code
300 - 60A
1 D- without current sharing
1 E- current sharing
4.5 - 12 -13.8V
D - DC/DC modules
S - Single Output
-1 E
MODEL LIST
Model Name
Packaging
Input Voltage
Output Voltage
Output Current
Efficiency 12Vin, Max
Vout @ 100% load
D12S300-1 D
Vertical
4.5 ~ 13.8Vdc
0.6 V~5.0Vdc
60A
94%
D12S300-1 E
Vertical
4.5 ~ 13.8Vdc
0.6 V~3.3Vdc
60A
92%
CONTACT: www.deltaww.com/dcdc
Email: dcdc@deltaww.com
USA:
Telephone:
East Coast: 978-656-3993
West Coast: 510-668-5100
Fax: (978) 656 3964
Europe:
Telephone: +31-20-655-0967
Fax: +31-20-655-0999
Asia & the rest of world:
Telephone: +886 3 4526107 x 6220~6224
Fax: +886 3 4513485
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.
DS_D12S300-1_07212016
13
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