DELTA D12F200A

FEATURES
Š
High Efficiency: 94% @ 12Vin, 5.0V/40A out
Š
Wide input range: 4.5V~13.8V
Š
Output voltage programmable from 0.6Vdc
to 5.0Vdc via external resistors
Š
No minimum load required
Š
Fixed frequency operation
Š
Input UVLO, output SCP, OVP.
Š
Remote On/Off (Positive logic)
Š
Power Good Function
Š
RoHS 5 / RoHS 6
Š
ISO 9001, TL 9000, ISO 14001, QS9000,
OHSAS18001 certified manufacturing facility
Delphi D12F200 Non-Isolated Point of Load
DC/DC Modules: 4.5V~13.8Vin, 0.6V~5.0Vout, 40A
OPTIONS
The D12F200, 4.5~13.8V wide input, single output, non-isolated point
of load DC/DC converter is the latest offering from a world leader in
power systems technology and manufacturing -- Delta Electronics, Inc.
The D12F200 and ND/NE product families are part of the second
generation, non-isolated point-of-load DC/DC power modules which cut
the module size by almost 50% in most of the cases compared to the
first generation NC series POL modules for networking and data
communication applications. D12F200 product provides up to 40A
output current and the output can be resistor trimmed from 0.6Vdc to
5.0Vdc. It provides a highly efficient, high power and current density
and 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.
DATASHEET
DS_D12F200_11042008
APPLICATIONS
Š
Telecom / DataCom
Š
Distributed power architectures
Š
Servers and workstations
Š
LAN / WAN applications
Š
Data processing applications
TECHNICAL SPECIFICATIONS
(Ambient Temperature=25°C, nominal Vin=12Vdc unless otherwise specified.)
PARAMETER
NOTES and CONDITIONS
D12F200
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
Maximum Input Current
No-Load Input Current
Off Converter 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
Output Current Range
Output Voltage Under-shoot at Power-Off
Output short-circuit current, RMS value
Over Current Protection
Over Voltage Protection
DYNAMIC CHARACTERISTICS
Transient Response
Output Dynamic Load Response
Settling Time
Turn-On Transient
Rise Time
Turn on Delay (power)
Turn on Delay (Remote on/off)
Turn on Transient (overshoot)
Turn off Transient (undershoot)
Maximum 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
FEATURE CHARACTERISTICS
Switching Frequency
ON/OFF Control
Logic High
Logic Low
Remote Sense Range
Power Good
Power Good Delay
Output to Power Good Delay Time
GENERAL SPECIFICATIONS
Calculated MTBF
Weight
DS_D12F200_11042008
Refer to Fig.37 for the measuring point
Typ.
Max.
Units
-0.3
0
-40
13.8
70
125
Vdc
°C
°C
4.5
13.8
V
18
300
20
Vdc
Vdc
A
mA
mA
4.3
4.0
Vin=12V, Vo=5V, Io=40A
Vin=12V, Vo=5V, Io=40A
Remote OFF
260
17
Refer to Fig.19 for the relations between input and output voltage
With a 0.1% trim resistor
0.6
-1.0
5.0
+1.0
Vdc
%Vo
Vo≦1.2Vdc
Vo＞1.2Vdc
Vin=Vin_min to Vin_max
Over load, line, temperature regulation and set point
5Hz to 20MHz bandwidth
Full Load, 10uF Tan cap, total input & output range
-20
-1.5
-0.5
-3.0
+20
+1.5
+0.5
+3.0
mV
%Vo
%Vo
%Vo
50
40
100
mV
A
mV
A
A
%
120
130
150
160
mVpk
mVpk
20
50
µs
8
13
13
0.5%
15
25
20
mS
mS
mS
Vo
mV
µF
µF
20
0
Vin=12V, Turn OFF
12Vin, 5Vout
Hiccup mode
Hiccup mode
10
70
120
25% step load, Slew rate=10A/uS, 0.6V~1.8V output
25% step load, Slew rate=10A/uS, 2.5V~ 5.0V output
12Vin, 2.5Vout, 1µF ceramic and 10µF Tan cap
Settling to be within regulation band (to 10% Vo deviation)
From 10% to 90% of Vo
Vin=12V, Io=min-max. (Wthin 10% of Vo)
Vin=12V, Io=min-max. (Wthin 10% of Vo)
ESR ≥ 10mΩ
ESR < 10mΩ
0
0
Vin=12V, Io=40A
Vin=12V, Io=40A
Vin=12V, Io=40A
Vin=12V, Io=40A
Vin=12V, Io=40A
Vin=12V, Io=40A
Vin=12V, Io=40A
Vin=12V, Io=40A
70
78
81
84
85
88
90
92
Fixed, per phase
Positive logic (internally pulled high)
Module On (or leave the pin open)
Module Off
1.2
0
Vo is out off +/-10% Vo,set
Vo is within +/-10% Vo,set
0
4.0
100
20000
5000
71.4
79.4
83.5
85.9
87.5
90.4
92.2
94.0
%
%
%
%
%
%
%
%
500
KHz
0.2
25℃, 300LFM, 80% load
5.6
14
Vinmax
0.6
0.5
0.4
5.1
2
1
V
V
V
V
V
mS
mS
Mhours
grams
2
90
95
85
90
Efficiency (%)
Efficiency (%)
ELECTRICAL CHARACTERISTICS CURVES
80
75
70
5Vin
65
12Vin
13.8Vin
75
5Vin
12Vin
13.8Vin
65
0
5
10 15 20 25 30
Output Current, Io (A)
35
0
40
Figure 1: Converter efficiency vs. output current
(0.9V output voltage, 5V&12V input)
5
10 15 20 25 30
Output Current, Io (A)
35
40
Figure 2: Converter efficiency vs. output current
(1.2V output voltage, 5V&12V input)
100
100
5Vin
12Vin
13.8Vin
95
Efficiency (%)
95
Efficiency (%)
80
70
60
90
85
80
90
85
80
75
75
70
70
0
5
10 15 20 25 30
Output Current, Io (A)
35
95
95
Efficiency (%)
100
90
85
80
75
12Vin
5
12Vin
13.8Vin
10 15 20 25 30
Output Current, Io (A)
35
40
Figure 4: Converter efficiency vs. output current
(2.5V output voltage, 5V&12V input)
100
7Vin
5Vin
0
40
Figure 3: Converter efficiency vs. output current
(1.8V output voltage, 5V&12V input)
Efficiency (%)
85
13.8Vin
90
85
80
9Vin
75
70
12Vin
13.8Vin
70
0
5
10 15 20 25 30
Output Current, Io (A)
Figure 5: Converter efficiency vs. output current
(3.3V output voltage, 12V input)
DS_D12F200_11042008
35
40
0
5
10 15 20 25 30
Output Current, Io (A)
35
40
Figure 6: Converter efficiency vs. output current
(5.0V output voltage, 12V input)
3
ELECTRICAL CHARACTERISTICS CURVES (CONTINUED)
Figure 7: Output ripple & noise at 12Vin, 0.9V/40A out
(10mv/div, 2uS/div)
Figure 8: Output ripple & noise at 12Vin, 1.2V/40A out
(10mv/div, 2uS/div)
Figure 9: Output ripple & noise at 12Vin, 1.8V/40A out
(10mv/div, 2uS/div)
Figure 10: Output ripple & noise at 12Vin, 2.5V/40A out
(10mv/div, 2uS/div)
Figure 11: Output ripple & noise at 12Vin, 3.3V/40A out
(10mv/div, 2uS/div)
Figure 12: Output ripple & noise at 12Vin, 5.0V/40A out
(10mv/div, 2uS/div)
DS_D12F200_11042008
4
ELECTRICAL CHARACTERISTICS CURVES (CONTINUED)
Figure 13: Turn on delay time at 12Vin, 0.9V/40A out (1mS/div)
Ch1: Enable, Ch2: PG, Ch3: Vo
Figure 14: Turn on delay time at 12Vin, 1.2V/40A out (1mS/div)
Ch1: Enable, Ch2: PG, Ch3: Vo
Figure 15: Turn on delay time at 12Vin, 1.8V/40A out (1mS/div)
Ch1: Enable, Ch2: PG, Ch3: Vo
Figure 16: Turn on delay time at 12Vin, 2.5V/40A out (1mS/div)
Ch1: Enable, Ch2: PG, Ch3: Vo
Figure 17: Turn on delay time at 12Vin, 3.3V/40A out (1mS/div)
Ch1: Enable, Ch2: PG, Ch3: Vo
Figure 18: Turn on delay time at 12Vin, 5.0V/40A out (1mS/div)
Ch1: Enable, Ch2: PG, Ch3: Vo
DS_D12F200_11042008
5
ELECTRICAL CHARACTERISTICS CURVES (CONTINUED)
Figure 19: Transient Response at 12Vin, 0.9V/40A out (1mS/div)
Ch1: Vo, Ch2: Io, 10A/div
Figure 20: Transient Response at 12Vin, 1.2V/40A out (1mS/div)
Ch1: Vo, Ch2: Io, 10A/div
Figure 21: Transient Response at 12Vin, 1.8V/40A out (1mS/div)
Ch1: Vo, Ch2: Io, 10A/div
Figure 22: Transient Response at 12Vin, 2.5V/40A out (1mS/div)
Ch1: Vo, Ch2: Io, 10A/div
Figure 23: Transient Response at 12Vin, 3.3V/40A out (1mS/div)
Ch1: Vo, Ch2: Io, 10A/div
Figure 24: Transient Response at 12Vin, 5.0V/40A out (1mS/div)
Ch1: Vo, Ch2: Io, 10A/div
DS_D12F200_11042008
6
ELECTRICAL CHARACTERISTICS CURVES (CONTINUED)
Figure 25: Short Circuit Protection at 12Vin, 0.9V out (1mS/div),
Ch1: Vo, Ch2: Io, 50A/div
Figure 26: Short Circuit Protection at 12Vin, 1.2V out (1mS/div),
Ch1: Vo, Ch2: Io, 50A/div
Figure 27: Short Circuit Protection at 12Vin, 1.8V out (1mS/div),
Ch1: Vo, Ch2: Io, 50A/div
Figure 28: Short Circuit Protection at 12Vin, 2.5V out (1mS/div),
Ch1: Vo, Ch2: Io, 50A/div
Figure 29: Short Circuit Protection at 12Vin, 3.3V out (1mS/div),
Ch1: Vo, Ch2: Io, 50A/div
Figure 30: Short Circuit Protection at 12Vin, 5.0V out (1mS/div),
Ch1: Vo, Ch2: Io, 50A/div
DS_D12F200_11042008
7
DESIGN CONSIDERATIONS
FEATURES DESCRIPTIONS
The D12F200 uses a two phase and voltage mode controlled
buck topology. The output can be trimmed in the range of
0.6Vdc to 5.0Vdc 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 0.6V).
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.
For output voltages above 1.8V, please refer to Figure 31
below for minimum input voltage requirement for proper
module operations.
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
D12F200 converter into a low power dissipation (sleep) mode.
Positive ENABLE is available as standard.
Positive ENABLE units of the D12F200 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 1.2V. The output will turn off
if the ENABLE pin voltage is pulled below 0.6V.
Input Under-Voltage Lockout
The input under-voltage lockout prevents the converter from
being damaged while operating when the input voltage is too
low. The under-voltage lockout is adjustable by adding a resistor
(Figure 32) between Enable pin and ground pin per the following
equation:
Re n( KΩ) =
Default lockout range is between 4.3V and 4.0V.
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.
5.5
Unit
4.5
OUTPUT VOLTAGE(V)
4.0
3.0
Vo=2. 5V
2.5
1.5
1.0
Vo=0. 6V
0.5
0.0
4.5
5.5
6.5
7.5
8.5
9.5
10.5
11.5
12.5
13.5
Enable
Trim(+)
GND
GND
Reflected Ripple Current and Output Ripple and Noise
Measurement
Vo=1. 8V
2.0
Vout
Figure 32: Enable input drive circuit example.
Vo=3. 3V
3.5
Vin
Ren
Vo=5V
5.0
3.5
315
14Ven + 3.8
14.5
The measurement set-up outlined in Figure 33 has been used for
both input reflected/ terminal ripple current and output voltage
ripple and noise measurements on D12F200 converters.
INPUT VOLTAGE(V)
Input reflected current measurement point
Figure 31: minimum input voltage required for output
Ltest
DC-DC Converter
Vin+
Load
voltages above 1.8V
Cs
Cin
1uF
Ceramic
10uF
Tan
Output voltage ripple noise measurement point
Cs=330μF OS-con cap x1, Ltest=1μH, Cin=330μF OS-con cap x1
DS_D12F200_11042008
Figure 33: Input reflected ripple/ capacitor ripple current and
output voltage ripple and noise measurement setup for
D12F200
8
FEATURES DESCRIPTIONS (CON.)
Over-Current and Short-Circuit Protection
The D12F200 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.
Output Voltage Programming
The output voltage of the D12F200 is trimmable by connecting
an external resistor between the trim pin and output ground as
shown Figure 35 and the typical trim resistor values are shown
in Table 1.
Unit
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.
Vin
Vout
Enable
Trim(+)
Note that none of the module specifications are guaranteed
when the unit is operated in an over-current condition.
GND
GND
Output Over Voltage Protection (OVP)
The converter will shut down when an output over voltage
protection is detected. Once the OVP condition is detected,
controller will stop all PWM outputs and turn on low-side
MOSFET to prevent any damage to load.
Remote Sense
The D12F200 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. The module shall correct for a total of 0.5V of
loss. The remote sense connects as shown in Figure 34.
Rtrim
Figure 35: Trimming Output Voltage
The D12F200 module has a trim range of 0.6V to 5.0V. The
trim resistor equation for the D12F200 is:
Rtrim(Ω) =
1200
Vout − 0.6
Vout is the output voltage setpoint
Rtrim is the resistance between Trim and Ground
Rtrim values should not be less than 270Ω
Output
0.6V
+0.9 V
+1.2V
+1.5 V
+1.8V
+2.5 V
+3.3 V
+5.0V
Rtrim (Ω)
open
4K
2K
1.33K
1K
631.6
444.4
272.7
Table 1: Typical trim resistor values
Power Good
Figure 34: Circuit configuration for remote sense
Output Capacitance
There are internal output capacitors on the D12F200 modules.
Hence, no external output capacitor is required for stable
operation.
DS_D12F200_11042008
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 4mA 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.
Paralleling
D12F200 converters do not have built-in current sharing
(paralleling) ability. Hence, paralleling of multiple D12F200
converters is not recommended.
9
THERMAL CONSIDERATION
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.
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 37: Temperature measurement location* The allowed
maximum hot spot temperature is defined at 125℃
Output Current (A)
D12F200A Output Current vs. Ambient Temperature and Air Velocity
@ Vin =12V, Vout =5V (Worst Orientation)
45
40
35
30
Natural
Convection
25
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.
15
200LFM
500LFM
300LFM
600LFM
10
5
0
25
35
45
55
65
75
85
Ambient Temperature (℃)
Figure 38: Output current vs. ambient temperature and air
velocity @Vin=12V, Vout=5.0V (Airflow from Pin1 to Pin11)
PWB
FACING PWB
400LFM
100LFM
20
MODULE
Output Current (A)
D12F200A Output Current vs. Ambient Temperature and Air Velocity
@ Vin =12V, Vout =3.3V (Worst Orientation)
45
40
35
AIR VELOCITY
AND AMBIENT
TEMPERATURE
MEASURED BELOW
THE MODULE
30
Natural
Convection
25
50.8 (2.0”)
AIR FLOW
400LFM
100LFM
20
15
200LFM
500LFM
300LFM
600LFM
10
11 (0.43”)
22 (0.87”)
5
0
25
Note: Wind tunnel test setup figure dimensions are in
millimeters and (Inches)
35
45
55
65
75
85
Ambient Temperature (℃)
Figure 39: Output current vs. ambient temperature and air
velocity@ Vin=12V, Vout=3.3V (Worst Orientation)
Figure 36: Wind tunnel test setup
DS_D12F200_11042008
10
THERMAL CURVES
Output Current (A)
D12F200A Output Current vs. Ambient Temperature and Air Velocity
@ Vin =12V, Vout =2.5V (Worst Orientation)
45
Output Current (A)
D12F200A Output Current vs. Ambient Temperature and Air Velocity
@ Vin =12V, Vout =1.2V (Worst Orientation)
45
40
40
35
35
Natural
Convection
30
30
25
Natural
Convection
25
100LFM
400LFM
200LFM
500LFM
300LFM
600LFM
20
400LFM
100LFM
20
15
15
200LFM
500LFM
300LFM
600LFM
10
10
5
5
0
25
35
45
55
65
0
25
35
45
55
65
Figure 40: Output current vs. ambient temperature and air
velocity@ Vin=5.0V, Vout=2.5V (Worst Orientation)
Output Current (A)
75
85
Ambient Temperature (℃)
75
85
Ambient Temperature (℃)
D12F200A Output Current vs. Ambient Temperature and Air Velocity
@ Vin =12V, Vout =1.8V (Worst Orientation)
45
40
Figure 43: Output current vs. ambient temperature and air
velocity @Vin=12V, Vout=1.2V (Worst Orientation)
Output Current (A)
D12F200A Output Current vs. Ambient Temperature and Air Velocity
@ Vin =12V, Vout =0.9V (Worst Orientation)
70
60
35
50
30
Natural
Convection
Natural
Convection
40
25
15
400LFM
100LFM
400LFM
100LFM
20
30
200LFM
500LFM
300LFM
600LFM
200LFM
500LFM
300LFM
600LFM
20
10
10
5
0
0
25
35
45
55
65
75
85
Ambient Temperature (℃)
Figure 41: Output current vs. ambient temperature and air
velocity @Vin=12V, Vout=1.8V (Worst Orientation)
Output Current (A)
25
35
45
55
65
75
85
Ambient Temperature (℃)
Figure 44: Output current vs. ambient temperature and air
velocity@ Vin=12V, Vout=0.9V (Worst Orientation)
D12F200A Output Current vs. Ambient Temperature and Air Velocity
@ Vin =12V, Vout =1.5V (Worst Orientation)
45
40
35
30
Natural
Convection
25
20
400LFM
100LFM
15
200LFM
500LFM
300LFM
600LFM
10
5
0
25
35
45
55
65
75
85
Ambient Temperature (℃)
Figure 42: Output current vs. ambient temperature and air
velocity@ Vin=5.0V, Vout=1.5V (Worst Orientation)
DS_D12F200_11042008
11
MECHANICAL DRAWING
NOTES:
1.
DIMENSIONS ARE IN MILLIMETERS AND (INCHES).
2.
TOLERANCES: X.Xmm±0.5mm (X.XX in. ±0.02 in.)
X.XXmm±0.25mm (X.XXX in. ±0.010 in.)
DS_D12F200_11042008
12
PART NUMBERING SYSTEM
D
12
F
200
A
Type of Product
Input Voltage
Product Series
Output
Option Code
D - DC/DC modules
12 - 4.5 ~13.8V
200 - 200W/40A
A - standard
MODEL LIST
Model Name
Input Voltage
Output Voltage
Output Current
Lead Free
Efficiency, 12Vin
D12F200A
4.5V~ 13.8Vdc
0.6V ~ 5.0V
40A
RoHs 6
94% @ 5V/40A
D12F200B
4.5V~ 13.8Vdc
0.6V ~ 5.0V
40A
RoHs 5
94% @ 5V/40A
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:
Telephone: +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.
DS_D12F200_11042008
13