DELTA D12S72C

FEATURES
Š
High efficiency :
91.5% @ 12Vin, 1.8V/40A out
Š
Small size and low profile:
1.00” x 0.62” x 0.50”
(25.4mm x 15.7mm x 12.7mm)
Š
Surface mount
Š
No minimum load required
Š
Input: UVLO, Output OCP/SCP, OVP,
OTP
Š
Parallel Units
Š
ISO 9000, TL 9000, ISO 14001 certified
manufacturing facility
Š
UL/cUL 60950-1 (US & Canada)
Recognized.
D12S72, Non-Isolated, Power Block
DC/DC Power Modules: 7.0~13.2Vin, 0.8V~1.8V/40Aout
The Delphi D12S72, surface mounted, power block is the latest offering from
a world leader in power systems technology and manufacturing — Delta
Electronics, Inc. The D12S72 is the latest offering in the DXP30 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 DXP family,
containing all necessary power components and boasting of a USABLE
2
(55˚C, 200LFM) current density of 64.5A/in and a power density of up to
3
232W/in , is a building block for a new open Digital Power Architecture
developed to work with either digital or analog controllers. Measured at
0.62”Wx1.00”Lx0.50”H and rated at 40A of output current, the D12S72 is
designed to operate with an input voltage from 7V to 13.2V and provide an
output voltage adjustable from 0.8V to 1.8V in digitally defined step
resolution of 1.62mV. Multiple D12S72 can be used in parallel to serve
applications where output currents are in excess of 40A with limitation
imposed only by the control circuit, analog or digital. Designed for superior
price/performance, the D12S72 can provide 1.8V and 40A full load in
ambient temperature up to 55˚C with 200LFM airflow.
APPLICATIONS
Š
Telecom / DataCom
Š
Distributed power architectures
Š
Servers and workstations
Š
LAN / WAN applications
Š
Data processing applications
DATASHEET
DS_D12S72C_03182011
Delta Electronics, Inc.
TECHNICAL SPECIFICATIONS
TA = 25°C, airflow rate = 200 LFM, Vin = 12Vdc, nominal Vout unless otherwise noted.
PARAMETER
NOTES and CONDITIONS
D12S72
Min.
ABSOLUTE MAXIMUM RATINGS
Input Voltage (Continuous)
Operating Temperature
Storage Temperature
Gate Voltage
INPUT CHARACTERISTICS
Operating Input Voltage
Maximum Input Current
PWM
PWMH, PWML logic low
PWMH, PWML logic high
Gate Voltage
OUTPUT CHARACTERISTICS
Output Voltage Adjustable Range
Total Output Voltage Regulation
Output Voltage Ripple and Noise
Output Voltage Overshoot
Output Current Range
Transient Response
Positive Step Change in Output Current
Negative Step Change in Output Current
Setting Time to 10% of Peak Devitation
Temperature sense
EFFICIENCY
Refer to Figure 21 for the measuring point
Vin=7V, Vout=1.8V, Iout=40A
Pin 4 and 5
PWMH or PWML
PWMH or PWML
Pin 3 (reference to ground), 6.4V recommended operating voltage
Total Regulation over load, line and temperature
6x 560µF OSCON and 388µF ceramic capacitor, BW=20MHz
@ turn on
Typ.
Max.
Units
0
0
-40
0
15
113
125
7
Vdc
°C
°C
Vdc
7.0
13.2
11.4
5.5
2
5.5
7
V
A
V
V
V
Vdc
1.8
+1
Vdc
%V
mVpp
%
A
4.5
0
3
4.5
5.0
0.8
-1
1.0
3.5
6.4
20
0.5
0
40
6x 560µF OSCON and 388µF ceramic capacitor, 10A/µs, 1.8Vout
75% Io,max to 100% Io,max
100% Io,max to 75% Io,max
FEATURE CHARACTERISTICS
Operating Frequency
GENERAL SPECIFICATIONS
MTBF
Weight
25°C, 100µA bias current
20
0.6
mV
mV
µs
V
Vin=7V, Vo=1.8V, Io=40A
Vin=12V, Vo=1.8V, Io=40A
Vin=13.2V, Vo=1.8V, Io=40A
92.0
91.5
91.0
%
%
%
400
kHz
25.18
9.8
M hours
grams
Vo=1.8V, Io=32A, Ta=25℃,400LFM
100
100
VGATE
VIN
L
PWMH
PWML
GND
GND
TEMP+
TEMPCS+
CS-
Block diagram of D12S72C
2
ELECTRICAL CHARACTERISTICS CURVES
Figure 1: Converter Efficiency vs. Output Current
(1V output voltage)
Figure 2: Converter Efficiency vs. Output Current
(1.8V output voltage)
Figure 3: Output Ripple & Noise at 7Vin,
1.8V/40A out, 20mV/div 2uS/div
Figure 4: Output Ripple & Noise at 12Vin,
1.8V/40A out, 20mV/div 2uS/div
Figure 5: Output Ripple & Noise at 13.2Vin,
1.8V/40A out, 20mV/div 2uS/div
Figure 6: Typical transient response to step load change
at 10A/µS from 75% to 100% of Io, 7Vin, 1.8V out
Top: 20mV/div 5uS/div, Bottom: 5A/div 5uS/div
3
Figure 7: Typical transient response to step load change
at 10A/µS from 100% to 75% of Io, 7Vin, 1.8V out
Top: 20mV/div 5uS/div, Bottom: 5A/div 5uS/div
Figure 8: Typical transient response to step load change
at 10A/µS from 75% to 100% of Io, 12Vin, 1.8V out
Top: 20mV/div 5uS/div, Bottom: 5A/div 5uS/div
Figure 9: Typical transient response to step load change
at 10A/µS from 100% to 75% of Io, 12Vin, 1.8V out
Top: 20mV/div 5uS/div, Bottom: 5A/div 5uS/div
Figure 10: Typical transient response to step load
change at 10A/µS from 75% to 100% of Io, 13.2Vin, 1.8V
out Top: 20mV/div 5uS/div, Bottom: 5A/div 5uS/div
Figure 11: Typical transient response to step load change
at 10A/µS from 100% to 75% of Io, 13.2Vin, 1.8V out
Top:20mV/div 5uS/div, Bottom:5A/div 5uS/div
Figure 12: Turn on waveform at 7vin, 1.8V/40A out
1V/div 2ms/div
4
ELECTRICAL CHARACTERISTICS CURVES
Figure 13: Turn on waveform at 7vin, 1.8V/40A out
1V/div 2ms/div
Figure 14: Turn on waveform at 7vin, 1.8V/40A out
1V/div 2ms/div
Figure 15: Turn off waveform at 7vin, 1.8V/40A out
1V/div 2ms/div
Figure 16: Turn off waveform at 7vin, 1.8V/40A out
1V/div 2ms/div
Figure 17: Turn off waveform at 7vin, 1.8V/40A out
1V/div 2ms/div
5
TEST CONFIGURATIONS
DESIGN CONSIDERATIONS
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.
Figure 17: Peak-peak output ripple & noise and startup
transient measurement test setup
Note: 6pcs 560µF OSCON, 4pcs 47µF 1210 MLCC and
20pcs 10uF 1206 MLCC capacitor in the module output.
Scope measurement should be made by using a BNC
connector.
DISTRIBUTION LOSSES
VI
Vo
II
Io
LOAD
SUPPLY
GND
Safety Considerations
For safety-agency approval the power module must be
installed in compliance with the spacing and separation
requirements of the end-use safety agency standards.
For the converter output to be considered meeting the
requirements of safety extra-low voltage (SELV), the
input must meet SELV requirements. The power module
has extra-low voltage (ELV) outputs when all inputs are
ELV.
The input to these units is to be provided with a
maximum 15A time-delay fuse in the ungrounded lead.
FEATURES DESCRIPTIONS
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.
η =(
Vo × Io
) × 100 %
Vi × Ii
Cin
1500uF/16V * 2pcs
Aluminum
Input
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 by input
or OUTEN on/off. The units operate normally once the
fault condition is removed.
Over-Temperature Protection
Cout
Vo
SCOPE
Over-Current Protection
10uF/16V * 2pcs
MLCC
To provide additional over-temperature protection in a
fault condition, the unit is equipped with a thermal
shutdown circuit. The shutdown circuit engages when the
temperature
of
monitored
component
exceeds
approximately 121℃. It can be set with latching mode or
auto-restart mode by the external digital IC. The shutdown
unit will restart by input or OUTEN on/off while the
temperature lower than 113℃ (latching mode), or will
auto-restart while the temperature lower than 113℃
(auto-restart mode).
Figure 19: Peak-peak Input ripple & noise measurement test
setup
Note: 2pcs 1,500µF Aluminum and 2pcs 10µF MLCC in
the module input. Scope measurement should be made
by using a BNC connector.
6
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.
D12S72 C Output Current vs. Ambient Temperature and Air Velocity
@Vin = 7V, Vo=1.8V (Either Orientation)
Output Current(A)
40
35
Natural
Convection
30
100LFM
25
Hence, the choice of equipment to characterize the
thermal performance of the power module is a wind
tunnel.
20
15
10
Thermal Testing Setup
5
0
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 Primarion test board and is horizontally positioned
within the wind tunnel.
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature (℃)
Figure 22: Output current vs. ambient temperature and air
[email protected] Vin=7V, Vout=1.8V (Either Orientation)
D12S72 C Output Current vs. Ambient Temperature and Air Velocity
@Vin = 11V, Vo=1.8V (Either Orientation)
Output Current(A)
40
35
Natural
Convection
30
100LFM
25
Airflow
20
15
TOP VIEW
10
Airflow
5
0
SIDE VIEW
FRONT VIEW
Figure 20: Wind Tunnel Test Setup
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=1.8V (Either Orientation)
Thermal De-rating
The module’s maximum hot spot temperature is
+113°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.
D12S72 C Output Current vs. Ambient Temperature and Air Velocity
@Vin =13.2V, Vo=1.8V (Either Orientation)
Output Current(A)
40
35
Natural
Convection
30
100LFM
25
20
15
10
5
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=1.8V (Either Orientation)
Figure 21: Temperature measurement location
The allowed maximum hot spot temperature is defined at 113℃
7
D12S72 C Output Current vs. Ambient Temperature and Air Velocity
@Vin = 7V, Vo=1.0V (Either Orientation)
Output Current(A)
40
Natural
Convection
35
30
25
20
15
10
5
0
25
30
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=1.0V (Either Orientation)
D12S72 C Output Current vs. Ambient Temperature and Air Velocity
@Vin = 11V, Vo=1.0V (Either Orientation)
Output Current(A)
40
Natural
Convection
35
30
100LFM
25
20
15
10
5
0
25
30
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=1.0V (Either Orientation)
D12S72 C Output Current vs. Ambient Temperature and Air Velocity
@Vin =13.2V, Vo=1.0V (Either Orientation)
Output Current(A)
40
35
Natural
Convection
30
100LFM
25
20
15
10
5
0
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=1.0V (Either Orientation)
8
LEADED (Sn/Pb) PROCESS RECOMMEND TEMP. PROFILE
Temperature (°C )
250
200
150
Ramp-up temp.
0.5~3.0°C /sec.
2nd Ramp-up temp. Peak temp.
1.0~3.0°C /sec. 210~230°C 5sec.
Pre-heat temp.
140~180°C 60~120 sec.
Cooling down rate <3°C /sec.
100
Over 200°C
40~50sec.
50
0
60
120
Time ( sec. )
180
240
300
Note: The temperature refers to the pin of D12S72C, measured on the pin +Vout joint.
LEAD FREE (SAC) PROCESS RECOMMEND TEMP. PROFILE
Temp.
Peak Temp. 240 ~ 245 ℃
217℃
Ramp down
max. 4℃/sec.
200℃
150℃
Preheat time
100~140 sec.
Time Limited 90 sec.
above 217℃
Ramp up
max. 3℃/sec.
25℃
Time
Note: The temperature refers to the pin of D12S72C, measured on the pin +Vout joint.
9
MECHANICAL CONSIDERATIONS
SURFACE-MOUNT TAPE & REEL
RECOMMEND LAYOUT
10
MECHANICAL DRAWING
11
Pin No.
Name
1
Vin
Function
Power Input, Voltage range from 7V to 13.2V
2
GND
Power Ground
3
+7Vin
Voltage range from 4.5V to 7V
4
PWML
Separator PWM signal for high efficiency
5
PWMH
Separator PWM signal for high efficiency
6
GND
7
Vin
Power Input, Voltage range from 7V to 13.2V
8
Cs+
Choke Current Sense
Power Ground
9
GND
10
Cs-
Choke Current Sense
Power Ground
11
Vout
Power Output
12
Vout
Power Output
13
GND
Power Ground
14
Temp-
Support Temperature Sense
15
Temp+
Support Temperature Sense
PART NUMBERING SYSTEM
D
12
S
72
Type of Product
Input Voltage
Number of Outputs
D - DC/DC modules
12 - 7 ~13.2V
S - Single
C
Product Series
Option Code
72 - 72W (1.8V/40A) max
C- Standard P block, RoHS 6/6
MODEL LIST
Model Name
D12S72C
Input Voltage Output Voltage
7.0 ~ 13.2Vdc
0.8V ~ 1.8V
Output
Current
RoHS
Total Height
Efficiency 12Vin, 1.8Vout
@ 100% load
40A
RoHS 6/6
0.5"
91.5%
CONTACT: www.delta.com.tw/dcdc
USA:
Telephone:
East Coast: (888) 335 8201
West Coast: (888) 335 8208
Fax: (978) 656 3964
Email: [email protected]
Europe:
Phone: +41 31 998 53 11
Fax: +41 31 998 53 53
Email: [email protected]
Asia & the rest of world:
Telephone: +886 3 4526107
Ext 6220~6224
Fax: +886 3 4513485
Email: [email protected]
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.
12