D12S1R845D

FEATURES

High efficiency:
95.3%@ 11Vin, 3.3V/35A out
94.3%@ 11Vin, 2.5V/40A out
93.0% @ 11Vin, 1.8V/45A out
89.3%@ 11Vin, 1.0V/45A out

Small size and low profile:

25.4x12.7x12.2mm
(1.00” x 0.50” x 0.48”) (SMD)

Surface mount

No minimum load required

Input UVLO, Output OCP/SCP, OVP

Parallel Units

ISO 9000, TL 9000, ISO 14001 certified
manufacturing facility
D12S1R845D, Non-Isolated, Power Block
DC/DC Power Modules: 7.0~13.2Vin,
0.6V~1.8V/45A, 2.5V/40A, 3.3V/35A
The Delphi D12S1R845D, surface mounted, power block is the latest offering
from a world leader in power systems technology and manufacturing — Delta
Electronics, Inc. The D12S1R845D is the latest offering in the DXP45 family
which was developed to address the ever-growing demands of increased
current and power densities in networking applications while providing
maximum flexibility for system configuration, its benefits can easily be applied
to other applications transcending various market segments. The DXP45
family, containing all necessary power components and boasting of a
2
USABLE (55˚C, 200LFM) current density of 90A/in and a power density of up
3
to 231W/in , is a building block for a new open Digital Power Architecture
developed to work with either digital or analog controllers. Measured at
0.5”Wx1.0”Lx0.48”H and rated at 45A of output current, the D12S1R845D is
designed to operate with an input voltage from 7V to 13.2V and provide an
output voltage adjustable from 0.6V to 3.3V. Each D12S1R845 contains two
power trains which can provides either an interleaved single output, or two
independent outputs. Multiple D12S1R845D can be used in parallel to serve
applications where output currents are in excess of 45A with limitation
imposed only by the control circuit, analog or digital. Designed for superior
price/performance, the D12S1R845D can provide 3.3V and 35A full load in
ambient temperature up to 55˚C with 200LFM airflow.
APPLICATIONS

Telecom / DataCom

Distributed power architectures

Servers and workstations

LAN / WAN applications

Data processing applications
DATASHEET
DS_D12S1R845D_05202014
Delta Electronics, Inc.
TECHNICAL SPECIFICATIONS
TA = 25°C, airflow rate = 200 LFM, Vin = 7~13.2Vdc, nominal Vout and Fsw=400kHz unless otherwise noted.
PARAMETER
NOTES and CONDITIONS
D12S1R845D
Min.
ABSOLUTE MAXIMUM RATINGS
Input Voltage (Continuous)
Operating Temperature
Storage Temperature
INPUT CHARACTERISTICS
Operating Input Voltage
Maximum Input Current
Environment temperature
0
-40
-40
7.0
Output Voltage Ripple and Noise
Output Voltage Overshoot
Output Current Range
Transient Response
Inductor Value
Inductor DCR
Inductor Peak Current
EFFICIENCY
Max.
Units
15
85
125
Vdc
°C
°C
13.2
18.0
V
A
3.0
Pin 3
1.8
6.7
Vin=11.0V
Total Regulation over load, line and temperature
0.6
-1
6x 330μF Tan Capacitor and 220μF ceramic capacitor,
BW=20MHz
@ turn on
0.6V~1.8Vout, single output/ dual output
2.5Vout, single output/ dual output
3.3Vout, single output/ dual output
Vin = 11.0V;Iout Step:50%~100%~50%Iout;Slew/Rate: 1A/uS
Cout: 6x 330μF Tan Capacitor and 220μF ceramic capacitor,
7.0
2.4
7.5
Vdc
3.3
+1
V
%V
15
0
0
0
0
mVpp
0.5
45/22.5
40/20
35/17.5
%V
A
A
200
mVpp
340
0.52
nH
mΩ
A
Inductor temperature of 125°C
Normal input,Io=Io,max, Ta=40℃,100LFM
V
2.0
Pin 5 (reference to ground)
Vin=7V, Vo=1.0V, Io=45A
Vin=11.0V, Vo=1.0V, Io=45A
Vin=13.2V, Vo=1.0V, Io=45A
Vin=7.0V, Vo=3.3V, Io=35A
Vin=11.0V, Vo=3.3V, Io=35A
Vin=13.2V, Vo=3.3V, Io=35A
FEATURE CHARACTERISTICS
Operating Frequency
GENERAL SPECIFICATIONS
MTBF
Weight
11.0
Vin=7V, Vout=3.3V, Iout=35A
PWM Rising Threshold
PWM Falling Threshold
Typical Tri_state Shutdown Window
Gate Voltage
OUTPUT CHARACTERISTICS
Output Voltage Adjustable Range
Total Output Voltage Regulation
Typ.
24.5
89.5
89.3
89.0
95.6
95.3
94.9
%
%
%
%
%
%
400
kHz
5.69
7.5
M hours
grams
Block diagram of D12S1R845D
2
ELECTRICAL CHARACTERISTICS CURVES
92.00%
91.00%
Efficiency (%)
90.00%
89.00%
88.00%
87.00%
86.00%
85.00%
84.00%
83.00%
82.00%
5
10
15
20
25
30
Output Current (A)
7.0Vin
11.0Vin
35
40
45
13.2Vin
Figure 1: Efficiency vs. load current for minimum, nominal, and maximum input voltage, 1.0V output voltage at 25°C., Fsw=400kHz
95.00%
94.00%
Efficiency (%)
93.00%
92.00%
91.00%
90.00%
89.00%
88.00%
87.00%
86.00%
5
10
15
20
25
30
Output Current (A)
7.0Vin
11.0Vin
35
40
45
13.2Vin
Figure 2: Efficiency vs. load current for minimum, nominal, and maximum input voltage, 1.8V output voltage at 25°C. Fsw=400kHz
3
ELECTRICAL CHARACTERISTICS CURVES
96.00%
95.00%
Efficiency (%)
94.00%
93.00%
92.00%
91.00%
90.00%
89.00%
88.00%
87.00%
5
10
15
20
25
Output Current (A)
7.0Vin
11.0Vin
30
35
40
13.2Vin
Figure 3: Efficiency vs. load current for minimum, nominal, and maximum input voltage, 2.5V output voltage at 25°C. Fsw=400kHz
96.00%
95.00%
Efficiency (%)
94.00%
93.00%
92.00%
91.00%
90.00%
89.00%
88.00%
87.00%
5
10
15
20
25
Output Current (A)
7.0Vin
11.0Vin
30
35
13.2Vin
Figure 4: Efficiency vs. load current for minimum, nominal, and maximum input voltage, 3.3V output voltage at 25°C. Fsw=400kHz
4
ELECTRICAL CHARACTERISTICS CURVES
Figure 5: Output Ripple & Noise
Figure 6: Output Ripple & Noise
Input Voltage=11V,Vout=1.0V, Iout=0 A,
Input Voltage=11V, Vout=1.0V, Iout=45 A
Figure 7: Output Ripple & Noise
Figure 8: Output Ripple & Noise
Input Voltage=11V,Vout=1.8V, Iout=0 A,
Input Voltage=11V, Vout=1.8V, Iout=45 A
Figure 9: Output Ripple & Noise
Figure 10: Output Ripple & Noise
Input Voltage=11V,Vout=2.5V, Iout=0 A,
Input Voltage=11V, Vout=2.5V, Iout=40 A
5
Figure 11: Output Ripple & Noise
Figure 12: Output Ripple & Noise
Input Voltage=11V,Vout=3.3V, Iout=0 A,
Input Voltage=11V, Vout=3.3V, Iout=35 A
ELECTRICAL CHARACTERISTICS CURVES
Figure 13: Dynamic response: Load Step: 100% ~ 50%~100%
(Vin =11.0V; 1.0V Output Voltage; slew rate=1A/uS)
Figure 14: Dynamic response: Load Step: 100% ~ 50%~100%
(Vin =11.0V; 1.8V Output Voltage; slew rate=1A/uS)
Figure 15: Dynamic response: Load Step: 100% ~ 50%~100%
(Vin =11.0V; 2.5V Output Voltage; slew rate=1A/uS)
Figure 16: Output Fall Time: 1 pcs Converter on test board.
(Vin =11.0V; 3.3V Output Voltage; Iout = 35A)
6
DESIGN CONSIDERATIONS
TEST CONFIGURATIONS
COPPER STRIP
V
o
Resistive
330uF*6 220uF
SCOPE Load
Tan
MLCC
GN
D
Figure 17: Peak-peak output ripple & noise and startup
transient measurement test setup
Note: 6pcs 330μF TAN and 220μF MLCC capacitor in
the module output. Scope measurement should be
made by using a BNC connector.
DISTRIBUTION LOSSES
VI
Vo
II
Io
LOAD
SUPPLY
The power module should be connected to a low
ac-impedance input source. Highly inductive source
impedances can affect the stability of the module. An
input capacitance must be placed close to the modules
input pins to filter ripple current and ensure module
stability in the presence of inductive traces that supply
the input voltage to the module.
FEATURES DESCRIPTIONS
Over-Current Protection
To provide protection in an output over load fault
condition, the unit is equipped with internal over-current
protection. When the over-current protection is
triggered, the unit will be shutdown and restart after a
period of time. The units operate normally once the fault
condition is removed.
GND
CONTACT RESISTANCE
Figure 18: Output voltage and efficiency measurement test
setup
Note: All measurements are taken at the module
terminals. When the module is not soldered (via socket),
place Kelvin connections at module terminals to avoid
measurement errors due to contact resistance.
 (
Vo  Io
)  100 %
Vi  Ii  Vdriver * Idriver
Input
SCOPE
Cin
Cout
16V/100uF * 1pcs
Aluminum
Vo
Figure 19: Peak-peak Input ripple & noise measurement test
setup
Note: 1pcs 1,00μF Aluminum in the module input.
Scope measurement should be made by using a BNC
connector.
7
THERMAL CONSIDERATIONS
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.
Thermal De-rating
The module’s maximum hot spot temperature is +115°C.
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.
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 wind tunnels that simulate the thermal
environments encountered in most electronics
equipment.
The following figures show the wind tunnel
characterization setup. The power module is mounted
on delta test board and is vertically positioned within the
wind tunnel.
Figure 21: Temperature measurement location
The allowed maximum hot spot temperature is defined at 115℃
Airflow
Top view
Airflow
Front view
Side view
Figure 20: Wind Tunnel Test Setup
8
THERMAL CURVES
D12S1R845A Output Current vs. Ambient Temperature and Air Velocity
@Vin = 7V, Vo=3.3V (Either Orientation)
Output Current(A)
D12S1R845A Output Current vs. Ambient Temperature and Air Velocity
@Vin = 7V, Vo=2.5V (Either Orientation)
Output Current(A)
40
35
Natural
Convection
30
Natural
Convection
35
30
25
100LFM
100LFM
25
20
200LFM
200LFM
20
15
300LFM
15
10
10
5
5
0
0
25
30
35
40
45
50
55
60
65
70
25
75
80
85
Ambient Temperature (℃)
Figure 22: Output current vs. ambient temperature and air
[email protected] Vin=7V, Vout=3.3V (Either Orientation)
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature (℃)
Figure 25: Output current vs. ambient temperature and air
[email protected] Vin=7V, Vout=2.5V (Either Orientation)
D12S1R845A Output Current vs. Ambient Temperature and Air Velocity
@Vin = 11V, Vo=3.3V (Either Orientation)
Output Current(A)
30
D12S1R845A Output Current vs. Ambient Temperature and Air Velocity
@Vin = 11V, Vo=2.5V (Either Orientation)
Output Current(A)
40
35
Natural
Convection
35
Natural
Convection
30
30
25
100LFM
100LFM
25
20
200LFM
200LFM
20
300LFM
300LFM
15
400LFM
15
400LFM
500LFM
10
10
5
600LFM
5
0
0
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature (℃)
Figure 23: Output current vs. ambient temperature and air
[email protected] Vin=11V, Vout=3.3V (Either Orientation)
25
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature (℃)
Figure 26: Output current vs. ambient temperature and air
[email protected] Vin=11V, Vout=2.5V (Either Orientation)
D12S1R845A Output Current vs. Ambient Temperature and Air Velocity
@Vin = 13.2V, Vo=3.3V (Either Orientation)
Output Current(A)
30
D12S1R845A Output Current vs. Ambient Temperature and Air Velocity
@Vin = 13.2V, Vo=2.5V (Either Orientation)
Output Current(A)
40
35
35
30
Natural
Convection
Natural
Convection
30
25
100LFM
100LFM
25
20
200LFM
200LFM
20
300LFM
300LFM
15
400LFM
400LFM
15
500LFM
500LFM
10
10
5
600LFM
5
0
0
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature (℃)
Figure 24: Output current vs. ambient temperature and air
[email protected] Vin=13.2V, Vout=3.3V (Either Orientation)
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature (℃)
Figure 27: Output current vs. ambient temperature and air
[email protected] Vin=13.2V, Vout=2.5V (Either Orientation)
9
D12S1R845A Output Current vs. Ambient Temperature and Air Velocity
@Vin = 7V, Vo=1.8V (Either Orientation)
Output Current(A)
D12S1R845A Output Current vs. Ambient Temperature and Air Velocity
@Vin = 7V, Vo=1.0V (Either Orientation)
Output Current(A)
45
45
Natural
Convection
40
40
Natural
Convection
35
35
30
100LFM
25
200LFM
20
300LFM
100LFM
30
25
200LFM
20
400LFM
300LFM
15
15
500LFM
10
10
5
5
0
0
25
30
35
40
45
50
55
60
65
70
25
75
80
85
Ambient Temperature (℃)
Figure 28: Output current vs. ambient temperature and air
[email protected] Vin=7V, Vout=1.8V (Either Orientation)
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature (℃)
Figure 31: Output current vs. ambient temperature and air
[email protected] Vin=7V, Vout=1.0V (Either Orientation)
D12S1R845A Output Current vs. Ambient Temperature and Air Velocity
@Vin = 11V, Vo=1.8V (Either Orientation)
Output Current(A)
30
D12S1R845A Output Current vs. Ambient Temperature and Air Velocity
@Vin = 11V, Vo=1.0V (Either Orientation)
Output Current(A)
45
45
Natural
Convection
40
40
Natural
Convection
35
35
100LFM
30
30
100LFM
25
25
200LFM
200LFM
20
300LFM
20
400LFM
15
300LFM
15
500LFM
10
600LFM
10
5
5
0
0
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature (℃)
Figure 29: Output current vs. ambient temperature and air
[email protected] Vin=11V, Vout=1.8V (Either Orientation)
25
45
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature (℃)
Figure 32: Output current vs. ambient temperature and air
[email protected] Vin=11V, Vout=1.0V (Either Orientation)
D12S1R845A Output Current vs. Ambient Temperature and Air Velocity
@Vin = 13.2V, Vo=1.8V (Either Orientation)
Output Current(A)
30
D12S1R845A Output Current vs. Ambient Temperature and Air Velocity
@Vin = 13.2V, Vo=1.0V (Either Orientation)
Output Current(A)
45
40
Natural
Convection
40
Natural
Convection
35
35
30
30
100LFM
25
200LFM
20
100LFM
25
200LFM
300LFM
20
300LFM
400LFM
15
15
500LFM
10
10
600LFM
5
5
0
0
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature (℃)
Figure 30: Output current vs. ambient temperature and air
[email protected] Vin=13.2V, Vout=1.8V (Either Orientation)
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature (℃)
Figure 33: Output current vs. ambient temperature and air
[email protected] Vin=13.2V, Vout=1.0V (Either Orientation)
10
MECHANICAL CONSIDERATIONS
SURFACE-MOUNT TAPE & REEL
11
MECHANICAL DRAWING
** ALL PIN ARE COPPER WITH MATTE TIN PLATED.
12
PART NUMBERING SYSTEM
D
12
Type of Product Input Voltage
D - DC/DC modules 12 - 7 ~13.2V
S
1R8
45
D
Number of
Outputs
Output Voltage
Output Current
Option Code
S - Single
1R8 - 0.6~3.3V
45 - 45A max
D - Standard
MODEL LIST
Model Name
Input Voltage
D12S1R845D
7.0 ~ 13.2Vdc
Output Voltage Output Current
0.6V ~ 3.3V
45A max
RoHS
Total Height
Efficiency 7Vin, 3.3Vout
@ 35A
RoHS 6/6
0.48"
95.5%
CONTACT: www.deltaww.com/dcdc Email: [email protected]
USA:
Telephone:
East Coast: 978-656-3993
West Coast: 510-668-5100
Fax: (978) 656 3964
Europe:
Phone: +31-20-655-0967
Fax: +31-20-655-0999
Asia & the rest of world:
Telephone: +886 3 4526107
ext 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.
13