DNK12S0A0R30

FEATURES
Š
High efficiency:
95% @ 12Vin, 5V/30A out (SIP)
Š
Small size and low profile:
50.8x12.7x14.0 mm (2.00”x0.50”x0.55”)
Š
Standard footprint
Š
Pre-bias startup
Š
Output voltage tracking
Š
No minimum load required
Š
Voltage and resistor-based trim
Š
Output voltage programmable from
0.8Vdc to 5.5Vdc via external resistor
Š
Fixed frequency operation
Š
Input UVLO, Output OTP, OCP
Š
Remote ON/OFF
Š
Remote sense
Š
Current sharing (optional)
Š
ISO 9000, TL 9000, ISO 14001 certified
manufacturing facility
Š
UL/cUL 60950-1 (US & Canada) recognized
Delphi Series DNK12, Non-Isolated, Point of Load
DC/DC Power Modules: 6~14Vin, 0.8V~5.5V/30Aout
The Delphi series DNK12, 6V~14V 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 DNK12 series provides a programmable output voltage from 0.8V to
5.5V by using an external resistor. The DNK converters have flexible and
programmable tracking and sequencing features to enable a variety of
startup voltages as well as sequencing and tracking between power
modules. This product family is available in a surface mount or SIP
package and provides up to 30A of current in an industry standard
footprint. With creative design technology and optimization of component
placement, these converters possess outstanding electrical and thermal
APPLICATIONS
performance and extremely high reliability under highly stressful
Š
Telecom / DataCom
operating conditions.
Š
Distributed power architectures
Š
Servers and workstations
Š
LAN / WAN applications
Š
Data processing applications
DATASHEET
DS_DNK12SIP_06042012
Delta Electronics, Inc.
TECHNICAL SPECIFICATIONS
TA = 25°C, airflow rate = 300 LFM, Vin = 10Vdc and 14Vdc, nominal Vout unless otherwise noted.
PARAMETER
NOTES and CONDITIONS
DNK12S0A0R30
Min.
ABSOLUTE MAXIMUM RATINGS
Input Voltage (Continuous)
Tracking Voltage
Operating Ambient Temperature
Storage Temperature
INPUT CHARACTERISTICS
Operating Input Voltage
Input Under-Voltage Lockout
Turn-On Voltage Threshold
Turn-Off Voltage Threshold
Maximum Input Current
No-Load Input Current
Off Converter Input Current
Inrush Transient
Recommended Input Fuse
OUTPUT CHARACTERISTICS
Output Voltage Set Point
Output Voltage Adjustable Range
Over Load
Total Output Voltage Range
Output Voltage Ripple and Noise
Peak-to-Peak
RMS
Output Current Range
Output Voltage Over-shoot at Start-up
Output DC Current-Limit Inception
DYNAMIC CHARACTERISTICS
Dynamic Load Response
Positive Step Change in Output Current
Negative Step Change in Output Current
Setting Time to 10% of Peak Deviation
Turn-On Transient
Start-Up Time, From On/Off Control
Start-Up Time, From Input
Output Voltage Rise Time
Maximum Output Startup Capacitive Load
EFFICIENCY
Vo=0.8V
Vo=1.2V
Vo=1.5V
Vo=1.8V
Vo=2.5V
Vo=3.3V
Vo=5.0V
FEATURE CHARACTERISTICS
Switching Frequency
ON/OFF Control, (Negative logic)
Logic Low Voltage
Logic High Voltage
Logic Low Current
Logic High Current
Tracking Slew Rate Capability
Tracking Delay Time
Tracking Accuracy
Remote Sense Range
GENERAL SPECIFICATIONS
MTBF
Weight
Over-Temperature Shutdown (Hot Spot)
Over-Temperature Shutdown (NTC Resistor)
Typ.
0
0
-40
-55
Vo<=3.3V
Vo>3.3V
6
8.3
12
12
Max.
Units
15
Vin,max
85
125
Vdc
Vdc
°C
°C
14
14
V
V
5.2
4.8
Vin=Vin,min to Vin,max, Io=Io,max
27
150
25
Vin=12V
Vin= 10.2~13.8V, Io=Io,min to Io,max
40
1
50
With a 1% trim resistor
Io=Io,min to Io,max
Over sample load, line and temperature
5Hz to 20MHz bandwidth with 0.01uF//0.1uF//10uF ceramic
Vo<=2.5V, Io=Io,max
Vo=3.3V, Io=Io,max
Vo=5V, Io=Io,max
Vin= Vin,min to Vin,max, Io=Io,max
-1.5
0.8
-0.4
-3.0
0
Vin=12V, Turn on
Hiccup mode
Vo,set
+1.5
5.5
0.4
+3.0
% Vo,set
V
% Vo,set
% Vo,set
25
50
75
100
mV
mV
mV
mV
A
% Vo,set
% Io
8
30
3
160
10µF Tan & 1µF ceramic load cap, 1A/µs, 5Vout
50% Io,max to 100% Io,max
100% Io,max to 50% Io,max
350
350
25
Io=Io.max
Von/off, Vo=10% of Vo,set
Vin=Vin,min, Vo=10% of Vo,set
Time for Vo to rise from 10% to 90% of Vo,set
Full load; ESR ≧1mΩ
Full load; ESR ≧10mΩ
3
3
4
2000
10000
Vin=12V, Io=Io,max
Vin=12V, Io=Io,max
Vin=12V, Io=Io,max
Vin=12V, Io=Io,max
Vin=12V, Io=Io,max
Vin=12V, Io=Io,max
Vin=12V, Io=Io,max
Module On, Von/off
Module Off, Von/off
Module On, Ion/off
Module Off, Ion/off
Vin= Vin,min to Vin,max, Io=Io,min to Io,max, Vseq<Vo
Delay from Vin.min to application of tracking voltage
Power-up, subject to 2V/mS
Power-down, subject to 1V/mS
V
V
A
mA
mA
A2S
A
mV
mV
µs
ms
ms
ms
µF
µF
82
85
89
90.5
93
94
95
%
%
%
%
%
%
%
300
kHz
-0.3
3
0.2
1.2
Vin,max
10
1
2
10
100
200
200
400
0.5
V
V
uA
mA
V/msec
ms
mV
mV
V
5.42
10
M hours
grams
Refer to Figure 43 for Hot spot location
(12Vin,80%Io, 200LFM,Airflow from Pin1 to Pin13)
133
°C
Refer to Figure 43 for NTC resistor location
130
°C
Io=Io,max, Ta=25℃
Note: Please attach thermocouple on NTC resistor to test OTP function, the hot spot’s temperature is just for reference.
DS_DNK12SIP_06042012
2
ELECTRICAL CHARACTERISTICS CURVES
Figure 1: Converter efficiency vs. output current
(0.8V output voltage)
Figure 2: Converter efficiency vs. output current
(1.2V output voltage)
Figure 3: Converter efficiency vs. output current
(1.5V output voltage)
Figure 4: Converter efficiency vs. output current
(1.8V output voltage)
Figure 5: Converter efficiency vs. output current
(2.5V output voltage)
Figure 6: Converter efficiency vs. output current
(3.3V output voltage)
DS_DNK12SIP_06042012
3
Figure 7: Converter efficiency vs. output current
(5V output voltage)
Figure 8: Output ripple & noise at 12Vin, 0.8V/30A out
20mV/div, 2uS/div
Figure 9: Output ripple & noise at 12Vin, 1.2V/30A out
20mV/div, 2uS/div
Figure 10: Output ripple & noise at 12Vin, 1.5V/30A out
20mV/div, 2uS/div
Figure 11: Output ripple & noise at 12Vin, 1.8V/30A out
Figure 12: Output ripple & noise at 12Vin, 2.5V/30A out
20mV/div, 2uS/div
20mV/div, 2uS/div
DS_DNK12SIP_06042012
4
Figure 13: Output ripple & noise at 12Vin, 3.3V/30A out
20mV/div, 2uS/div
Figure 14: Output ripple & noise at 12Vin, 5V/30A out
20mV/div, 2uS/div
Figure 15: Turn on delay time at 12vin, 0.8V/30A out
Top: 0.5V/div, 2ms/div, Bottom: 10V/div, 2ms/div
Figure 16: Turn on delay time at 12vin, 1.2V/30A out
Top: 1V/div, 2ms/div, Bottom: 10V/div, 2ms/div
Figure 17: Turn on delay time at 12vin, 3.3V/30A out
Top: 2V/div, 2ms/div, Bottom: 10V/div, 2ms/div
Figure 18: Turn on delay time at 12vin, 5V/30A out
Top: 5V/div, 2ms/div, Bottom: 10V/div, 2ms/div
DS_DNK12SIP_06042012
5
Figure 19: Turn on delay time at Remote On/Off, 0.8V/30A out
Top: 0.5V/div, 2ms/div, Bottom: 10V/div, 2ms/div
Figure 20: Turn on delay time at Remote On/Off, 1.2V/30A out
Top: 1V/div, 2ms/div, Bottom: 10V/div, 2ms/div
Figure 21: Turn on delay time at Remote On/Off, 3.3V/30A out
Top: 2V/div, 2ms/div, Bottom: 10V/div, 2ms/div
Figure 22: Turn on delay time at Remote On/Off, 5V/30A out
Top: 5V/div, 2ms/div, Bottom: 10V/div, 2ms/div
Figure 23: Typical transient response to step load change at 1A/µS
from 25% to 75% of Io, max at 12Vin, 0.8V out
(Cout = 1uF ceramic, 10µF tantalum)
Top:100mV/div, 50uS/div, Bottom: 20A/div, 50uS/div
Figure 24:Typical transient response to step load change at 1A/µS
from 25% to 75% of Io, max at 12Vin, 1.2V out
(Cout = 1uF ceramic, 10µF tantalum)
Top:100mV/div, 50uS/div, Bottom: 20A/div, 50uS/div
DS_DNK12SIP_06042012
6
ELECTRICAL CHARACTERISTICS CURVES
Figure 25: Typical transient response to step load change at 5A/µS
from 25% to 75% of Io, max at 12Vin, 3.3V out
(Cout = 1uF ceramic, 10µF tantalum)
Top:100mV/div, 50uS/div, Bottom: 20A/div, 50uS/div
Figure 26:Typical transient response to step load change at 5A/µS
from 25% to 75% of Io, max at 12Vin, 5V out
(Cout = 1uF ceramic, 10µF tantalum)
Top:100mV/div, 50uS/div, Bottom: 20A/div, 50uS/div
Figure 27: Output short circuit current 12Vin, 1.2Vout
Top: 1V/div, 5ms/div, Bottom: 20A/div, 5ms/div
Figure 28: Output short circuit current 12Vin, 3.3Vout
Top: 1V/div, 5ms/div, Bottom: 20A/div, 5ms/div
Figure 29: Turn on with Prebias 12Vin,0.8V/0A out, Vbias =0.5Vdc
Top: 0.5V/div, 2ms/div, Bottom: 5V/div, 2ms/div
Figure 30: Turn on with Prebias 12Vin,1.2V/0A out, Vbias =0.79Vdc
Top: 1V/div, 2ms/div, Bottom: 5V/div, 2ms/div
DS_DNK12SIP_06042012
7
Figure 31: Turn on with Prebias 12Vin,3.3V/0A out, Vbias =2.2Vdc
Top: 2V/div, 2ms/div, Bottom: 5V/div, 2ms/div
Figure 32: Turn on with Prebias 12Vin, 5V/0A out, Vbias =3.3Vdc
Top: 2V/div, 2ms/div, Bottom: 5V/div, 2ms/div
DS_DNK12SIP_06042012
8
TEST CONFIGURATIONS
DESIGN CONSIDERATIONS
Safety Considerations
TO OSCILLOSCOPE
L
VI(+)
2 100uF
Tantalum
BATTERY
VI(-)
Note: Input reflected-ripple current is measured with a
simulated source inductance. Current is
measured at the input of the module.
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 50A of glass type fast-acting fuse in the
ungrounded lead.
Figure 33: Input reflected-ripple test setup
COPPER STRIP
Input Source Impedance
Vo
1uF
10uF
SCOPE
tantalum ceramic
Resistive
Load
GND
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.
Note: Use a 10µF tantalum and 1µF capacitor. Scope
measurement should be made using a BNC
connector.
Figure 34: Peak-peak output noise and startup transient
measurement test setup
CONTACT AND
DISTRIBUTION LOSSES
VI
Vo
Io
I
LOAD
SUPPLY
GND
CONTACT RESISTANCE
Figure 35: 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
DS_DNK12SIP_06042012
9
FEATURES DESCRIPTIONS
FEATURES DESCRIPTIONS (CON.)
Remote On/Off
Distribution Losses
Distribution Losses
Vin
Vo
The DNK series power modules have an On/Off pin for
remote On/Off operation. Only negative On/Off logic
option is available in the DNK series power modules.
Sense
RL
For negative logic module, the On/Off pin is suggested
to be pulled high with an external pull-up resistor (see
figure 36). Negative logic On/Off signal turns the module
OFF during logic high and turns the module ON during
logic low. If the negative On/Off function is not used,
leave the pin floating or tie to GND. (module will be On)
GND
Distribution Losses
Distribution Losses
Figure 37: Effective circuit configuration for remote sense
operation
Vo
Vin
Rpull-up
Output Voltage Programming
ION/OFF
On/Off
RL
Figure 36: Negative remote On/Off implementation
The output voltage of the DNK can be programmed to
any voltage between 0.8Vdc and 5.5Vdc by connecting
one resistor (shown as Rtrim in Figure 38) between the
TRIM and GND pins of the module. Without this external
resistor, the output voltage of the module is 0.8 Vdc. To
calculate the value of the resistor Rtrim for a particular
output voltage Vo, please use the following equation:
Over-Current Protection
Rtrim := 
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 enters hiccup mode. The units
operate normally once the fault condition is removed.
Rtrim is the external resistor in Ω
Vo is the desired output voltage
GND
 1200 − 100  ⋅ Ω
 Vo − 0.80

Vo
Over-Temperature Protection
The over-temperature protection consists of circuitry
that provides protection from thermal damage. If the
temperature exceeds the over-temperature threshold
the module will shut down. The module will restart once
the temperature is within specification
RLoad
TRIM
Rtrim
GND
Remote Sense
The DNK provide 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.
Figure 38: Circuit configuration for programming output voltage
using an external resist
DS_DNK12SIP_06042012
10
FEATURES DESCRIPTIONS (CON.)
FEATURES DESCRIPTIONS (CON.)
Table 1 provides Rtrim values required for some common
output voltages. By using a 0.5% tolerance trim resistor,
set point tolerance of ±1.5% can be achieved as specified
in the electrical specification.
Voltage Tracking
Table 1
VO (V)
0.8
1.2
1.5
1.8
2.5
3.3
5.0
Rtrim (Ω)
Open
2900
1614
1100
606
380
185.7
By connecting multiple modules together, customers can
get multiple modules to track their output voltages to the
voltage applied on the TRACK pin.
Voltage Margining
Output voltage margining can be implemented in the
DNK modules by connecting a resistor, R margin-up, from the
Trim pin to the ground pin for margining-up the output
voltage and by connecting a resistor, Rmargin-down, from the
Trim pin to the output pin for margining-down. Figure 39
shows the circuit configuration for output voltage
margining. If unused, leave the trim pin unconnected. A
calculation tool is available from the evaluation procedure
which computes the values of R margin-up and Rmargin-down for
a specific output voltage and margin percentage.
Vin
The DNK family was designed for applications that have
output voltage tracking requirements during power-up
and power-down. The devices have a TRACK pin to
implement three types of tracking method: sequential,
simultaneous and ratio-metric. TRACK simplifies the task
of supply voltage tracking in a power system by enabling
modules to track each other, or any external voltage,
during power-up and power-down.
The DNK family has option code A for TRACK function.
The output voltage Track characteristic can be achieved
when the output voltage of PS2 follows the output
voltage of PS1 on a volt-to-volt basis.
Vo
Rmargin-down
Q1
On/Off
Figure 40: Simultaneous tracking
Trim
Rmargin-up
Rtrim
Q2
GND
Figure 39: Circuit configuration for output voltage margining
Simultaneous tracking (Figure 40) is implemented by
using a voltage divider around the TRACK pin. The
objective is to minimize the voltage difference between
the power supply outputs during power up and down.
For type A (DNX0A0XXXX A), the simultaneous tracking
can be accomplished by connecting VoPS1 to the TRACK
pin of PS2 where the voltage divider is inside the PS2.
DS_DNK12SIP_06042012
11
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 CURVES
NTC RESISTOR
AIRFLOW
Hence, the choice of equipment to characterize the
thermal performance of the power module is a wind
tunnel.
HOT SPOT
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 height of this fan duct is constantly kept at
25.4mm (1’’).
Figure 43: * Hot spot& NTC resistor temperature measured
points.
Output Current (A)
DNK12S0A0R30(standard) Output Current vs. Ambient Temperature and Air Velocity
@Vin=12V Vout=0.8V (Through PCB Orientation)
30
25
Natural
Convection
20
100LFM
200LFM
15
300LFM
400LFM
10
500LFM
Thermal Derating
5
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.
600LFM
0
25
30
40
45
50
55
60
65
70
75
80
85
Ambient Temperature (℃)
Figure 44: Output current vs. ambient temperature and air
velocity @ Vin=12V, Vout=0.8V (Through PCB Orientation,
Airflow from Pin1 to Pin13)
PWB
FANCING PWB
35
DNK12S0A0R30(standard) Output Current vs. Ambient Temperature and Air Velocity
@Vin=12V Vout=1.8V (Through PCB Orientation)
Output Current (A)
MODULE
30
25
Natural
Convection
20
100LFM
AIR VELOCITY
AND AMBIENT
TEMPERATURE
SURED BELOW
THE MODULE
200LFM
50.8(2.00")
15
AIR F LOW
300LFM
10
400LFM
500LFM
5
600LFM
0
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature (? )
Note: Wind Tunnel Test Setup Figure Dimensions are in millimeters and (Inches)
Figure 42: Wind tunnel test setup
Figure 45: Output current vs. ambient temperature and air
velocity @ Vin=12V, Vout=1.8V (Through PCB Orientation,
Airflow from Pin1 to Pin13)
DS_DNK12SIP_06042012
12
THERMAL CURVES
DNK12S0A0R30(standard) Output Current vs. Ambient Temperature and Air Velocity
@Vin=12V Vout=3.3V (Through PCB Orientation)
Output Current (A)
30
25
Natural
Convection
20
100LFM
15
200LFM
300LFM
10
400LFM
500LFM
5
600LFM
0
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature (? )
Figure 46: Output current vs. ambient temperature and air
velocity @ Vin=12V, Vout=3.3V (Through PCB Orientation,
Airflow from Pin1 to Pin13)
DNK12S0A0R30(standard) Output Current vs. Ambient Temperature and Air Velocity
@Vin=12V Vout=5.0V (Through PCB Orientation)
Output Current (A)
30
25
Natural
Convection
20
100LFM
15
200LFM
300LFM
10
400LFM
500LFM
5
600LFM
0
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature (℃)
Figure 47: Output current vs. ambient temperature and air
velocity @ Vin=12V, Vout=5.0V (Through PCB Orientation,
Airflow from Pin1 to Pin13)
DS_DNK12SIP_06042012
13
MECHANICAL DRAWING
Note: All pins are copper alloy with Matte-tin(Pb free) plated over Nickel underplating.
DS_DNK12SIP_06042012
14
PART NUMBERING SYSTEM
DNK
Product
Family
12
S
Input
Voltage
0A0
Number of
Outputs
DNK - 30A 12 - 6.0V ~ 14V S - Single
R
30
N
On/Off
Output
Voltage
Package
Type
Output
Current
0A0 Programmable
R - SIP
30 - 30A
F
A
Option Code
Logic
N - Negative F- RoHS 6/6
(Lead Free)
A - Standard Function
w/o current sharing
Space - RoHs B - with current sharing
5/6
MODEL LIST
Model Name
Package Input Voltage
Output Voltage
Output Current
Efficiency
12Vin, 5Vout @ full load
DNK12S0A0R30NFA
SIP
6.0V ~ 14Vdc
0.8V ~ 5.0Vdc
30A
95%
DNK12S0A0R30N A
SIP
6.0V ~ 14Vdc
0.8V ~ 5.0Vdc
30A
95%
CONTACT: www.delta.com.tw/dcdc
USA:
Telephone:
East Coast: 978-656-3993
West Coast: 510-668-5100
Fax: (978) 656 3964
Email: DCDC@delta-corp.com
Europe:
Phone: +41 31 998 53 11
Fax: +41 31 998 53 53
Email: DCDC@delta-es.com
Asia & the rest of world:
Telephone: +886 3 4526107 ext 6220
Fax: +886 3 4513485
Email: DCDC@delta.com.tw
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_DNK12SIP_06042012
15