Delta DNL04S0A0R16NFA Delphi dnl, non-isolated point of load dc/dc power modules: 2.8-5.5vin, 0.75-3.3v/16a out Datasheet

FEATURES
High efficiency: 95% @ 5.0Vin, 3.3V/16A out
Small size and low profile: (SIP)
50.8mm x 13.4mm x 8.5mm
(2.00” x 0.53” x 0.33”)
Single-In-Line (SIP) packaging
Standard footprint
Voltage and resistor-based trim
Pre-bias startup
Output voltage tracking
No minimum load required
Output voltage programmable from
0.75Vdc to 3.3Vdc via external resistor
Fixed frequency operation
Input UVLO, output OTP, OCP
Remote ON/OFF
Remote sense
ISO 9001, TL 9000, ISO 14001, QS9000,
OHSAS18001 certified manufacturing facility
UL/cUL 60950 (US & Canada) Recognized,
and TUV (EN60950) Certified
Delphi DNL, Non-Isolated Point of Load
CE mark meets 73/23/EEC and 93/68/EEC
DC/DC Power Modules: 2.8-5.5Vin, 0.75-3.3V/16A out
directives
The Delphi Series DNL, 2.8-5.5V input, single output, non-isolated Point
of Load DC/DC converters are the latest offering from a world leader in
OPTIONS
power system and technology and manufacturing -- Delta Electronics,
Negative On/Off logic
Inc. The DNL series provides a programmable output voltage from 0.75V
Tracking feature
to 3.3V using an external resistor. The DNL converters have flexible and
SMD package
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 16A of current in an industry standard footprint.
With creative design technology and optimization of component
placement, these converters possess outstanding electrical and thermal
performance and extremely high reliability under highly stressful
operating conditions.
APPLICATIONS
Telecom/DataCom
Distributed power architectures
Servers and workstations
LAN/WAN applications
Data processing applications
DATASHEET
DS_DNL04SIP16_10052006
TECHNICAL SPECIFICATIONS
(TA = 25°C, airflow rate = 300 LFM, Vin = 2.8Vdc and 5.5Vdc, nominal Vout unless otherwise noted.)
PARAMETER
NOTES and CONDITIONS
DNL04S0A0R16PFA
Min.
ABSOLUTE MAXIMUM RATINGS
Input Voltage (Continuous)
Tracking 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
Inrush Transient
Recommended Inout Fuse
Input Reflected-Ripple Current
Input Voltage Ripple Rejection
OUTPUT CHARACTERISTICS
Output Voltage Set Point
Output Voltage Adjustable Range
Output Voltage Regulation
Over Line
Over Load
Over Temperature
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
Output Short-Circuit Current (Hiccup Mode)
DYNAMIC CHARACTERISTICS
Dynamic Load Response
Positive Step Change in Output Current
Negative Step Change in Output Current
Settling 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=3.3V
Vo=2.5V
Vo=1.8V
Vo=1.5V
Vo=1.2V
Vo=0.75V
FEATURE CHARACTERISTICS
Switching Frequency
ON/OFF Control, (Negative logic)
Logic Low Voltage
Logic High Voltage
Logic Low Current
Logic High Current
ON/OFF Control, (Positive Logic)
Logic High Voltage
Logic Low 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
DS_DNL04SIP16A_10052006
Typ.
0
Max.
Units
Vdc
Vdc
°C
°C
Refer to Figure 45 for measuring point
-40
-55
5.8
Vin,max
125
+125
Vo ≦ Vin –0.5
2.8
5.5
V
16
100
30
0.1
20
V
V
A
mA
mA
A 2S
A
mAp-p
dB
+2.0
3.63
% Vo,set
V
+3.0
% Vo,set
% Vo,set
% Vo,set
% Vo,set
2.2
2.0
Vin=2.8V to 5.5V, Io=Io,max
70
20
Vin=2.8V to 5.5V, Io=Io,min to Io,max
P-P thru 1µH inductor, 5Hz to 20MHz
120 Hz
Vin=5V, Io=Io, max
Vin=2.8V to 5.5V
Io=Io,min to Io,max
Ta=-40℃ to 85℃
Over sample load, line and temperature
5Hz to 20MHz bandwidth
Full Load, 1µF ceramic, 10µF tantalum
Full Load, 1µF ceramic, 10µF tantalum
TBD
TBD
-2.0
0.7525
Vo,set
0.3
0.4
0.8
-3.0
25
8
50
15
16
5
280
mV
mV
A
% Vo,set
% Io
Adc
300
300
25
400
400
mV
mV
µs
4
4
4
6
6
8
1000
5000
ms
ms
ms
µF
µF
0
220
3.5
Io,s/c
10µF Tan & 1µF Ceramic load cap, 2.5A/µs
50% Io, max to 100% Io, max
100% Io, max to 50% Io, max
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
Vin=5V, 100% Load
Vin=5V, 100% Load
Vin=5V, 100% Load
Vin=5V, 100% Load
Vin=5V, 100% Load
Vin=5V, 100% Load
Module On, Von/off
Module Off, Von/off
Module On, Ion/off
Module Off, Ion/off
Module On, Von/off
Module Off, Von/off
Module On, Ion/off
Module Off, Ion/off
Delay from Vin.min to application of tracking voltage
Power-up
2V/mS
Power-down 1V/mS
Io=80%Io, max; Ta=25°C
Refer to Figure 45 for measuring point
95.0
93.0
91.0
89.5
88.0
83.0
%
%
%
%
%
%
300
kHz
-0.2
1.5
0.2
-0.2
0.2
0.1
10
100
200
11.88
10
130
0.3
Vin,max
10
1
V
V
µA
mA
Vin,max
0.3
1
10
2
V
V
mA
µA
V/msec
ms
mV
mV
V
200
400
0.1
M hours
grams
°C
2
ELECTRICAL CHARACTERISTICS CURVES
95
95
90
Vin=4.5V
85
Vin=5.0V
80
Vin=5.5V
EFFICIENCY(%)
100
EFFICIENCY(%)
100
75
90
Vin=3.0V
85
Vin=5.0V
80
Vin=5.5V
75
1
2
3
4
5
6 7 8 9 10 11 12 13 14 15 16
OUTPUT CURRENT (A)
Figure 1: Converter efficiency vs. output current (3.3V out)
1
95
85
Vin=5.0V
80
EFFICIENCY(%)
95
EFFICIENCY(%)
100
Vin=2.8V
Vin=5.5V
2
3
4
5
6
7
8
9
6 7 8 9 10 11 12 13 14 15 16
OUTPUT CURRENT (A)
90
Vin=2.8V
85
Vin=5.0V
Vin=5.5V
1
OUTPUT CURRENT (A)
95
5
75
10 11 12 13 14 15 16
Figure 3: Converter efficiency vs. output current (1.8V out)
4
80
75
1
3
Figure 2: Converter efficiency vs. output current (2.5V out)
100
90
2
2
3
4
5
6 7 8 9 10 11 12 13 14 15 16
OUTPUT CURRENT (A)
Figure 4: Converter efficiency vs. output current (1.5V out)
95
90
90
85
EFFICIENCY(%)
EFFICIENCY(%)
85
80
Vin=2.8V
80
Vin=5.0V
Vin=5.5V
75
70
Vin=2.8V
75
Vin=5.0V
70
Vin=5.5V
65
60
1
2
3
4
5
6 7 8 9 10 11 12 13 14 15 16
OUTPUT CURRENT (A)
Figure 5: Converter efficiency vs. output current (1.2V out)
DS_DNL04SIP16A_10052006
1
2
3
4
5
6 7 8 9 10 11 12 13 14 15 16
OUTPUT CURRENT (A)
Figure 6: Converter efficiency vs. output current (0.75V out)
3
ELECTRICAL CHARACTERISTICS CURVES
Figure 7: Output ripple & noise at 3.3Vin, 2.5V/16A out
Figure 8: Output ripple & noise at 3.3Vin, 1.8V/16A out
Figure 9: Output ripple & noise at 5Vin, 3.3V/16A out
Figure 10: Output ripple & noise at 5Vin, 1.8V/16A out
Figure 11: Turn on delay time at input turn on 3.3Vin, 2.5V/16A out
Figure 12: Turn on delay time at input turn on 3.3Vin, 1.8V/16A out
DS_DNL04SIP16A_10052006
4
Figure 13: Turn on delay time at input turn on 5Vin, 3.3V/16A out
Figure 14: Turn on delay time at input turn on 5Vin, 1.8V/16A out
Figure 15: Turn on delay time at remote turn on 5Vin, 3.3V/16A out
Figure 16: Turn on delay time at remote turn on 3.3Vin, 2.5V/16A
out
Figure 17: Turn on delay time at remote turn on with external
Figure 18: Turn on delay time at remote turn on with external
capacitors (Co= 5000 µF) 5Vin, 3.3V/16A out
capacitors (Co= 5000 µF) 3.3Vin, 2.5V/16A out
DS_DNL04SIP16A_10052006
5
ELECTRICAL CHARACTERISTICS CURVES
Figure 19: Typical transient response to step load change at
2.5A/µS from 100% to 50% of Io, max at 5Vin, 3.3V out
(Cout = ceramic, 10µF tantalum)
Figure 20: Typical transient response to step load change at
2.5A/µS from 50% to 100% of Io, max at 5Vin, 3.3V out
(Cout = ceramic, 10µF tantalum)
Figure 21: Typical transient response to step load change at
2.5A/µS from 100% to 50% of Io, max at 5Vin, 1.8V out
(Cout = ceramic, 10µF tantalum)
Figure 22: Typical transient response to step load change at
2.5A/µS from 50% to 100% of Io, max at 5Vin, 1.8V out
(Cout = ceramic, 10µF tantalum)
DS_DNL04SIP16A_10052006
6
ELECTRICAL CHARACTERISTICS CURVES
Figure 23: Typical transient response to step load change at
2.5A/µS from 100% to 50% of Io, max at 3.3Vin,
2.5V out (Cout = ceramic, 10µF tantalum)
Figure 24: Typical transient response to step load change at
2.5A/µS from 50% to 100% of Io, max at 3.3Vin,
2.5V out (Cout = ceramic, 10µF tantalum)
Figure 25: Typical transient response to step load change at
2.5A/µS from 100% to 50% of Io, max at 3.3Vin,
1.8V out (Cout = ceramic, 10µF tantalum)
Figure 26: Typical transient response to step load change at
2.5A/µS from 50% to 100% of Io, max at 3.3Vin,
1.8V out (Cout = ceramic, 10µF tantalum)
Figure 27: Output short circuit current 5Vin, 0.75Vout
Figure 28:Turn on with Prebias 5Vin, 3.3V/0A out, Vbias =1.0Vdc
DS_DNL04SIP16A_10052006
7
DESIGN CONSIDERATIONS
TEST CONFIGURATIONS
Input Source Impedance
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.
To maintain low noise and ripple at the input voltage, it is
critical to use low ESR capacitors at the input to the
module. Figure 32 shows the input ripple voltage (mVp-p)
for various output models using 200 µF(2 x100uF) low
ESR tantalum capacitor (KEMET p/n: T491D107M016AS,
AVX p/n: TAJD107M106R, or equivalent) in parallel with
47 µF ceramic capacitor (TDK p/n:C5750X7R1C476M or
equivalent). Figure 33 shows much lower input voltage
ripple when input capacitance is increased to 400 µF (4 x
100 µF) tantalum capacitors in parallel with 94 µF (2 x 47
µF) ceramic capacitor.
Figure 29: Input reflected-ripple test setup
The input capacitance should be able to handle an AC
ripple current of at least:
COPPER STRIP
Vo
Resistive
Load
GND
Note: Use a 10µF tantalum and 1µF capacitor. Scope
measurement should be made using a BNC connector.
Figure 30: Peak-peak output noise and startup transient
measurement test setup.
Irms = Iout
Input Ripple Voltage (mVp-p)
1uF
10uF
SCOPE
tantalum ceramic
300
250
200
150
100
5.0Vin
50
3.3Vin
0
0
1
2
3
4
Output Voltage (Vdc)
Vo
II
Arms
350
CONTACT AND
DISTRIBUTION LOSSES
VI
Vout ⎛ Vout ⎞
⎜1 −
⎟
Vin ⎝
Vin ⎠
Io
GND
CONTACT RESISTANCE
Figure 31: 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
η=(
) × 100 %
Vi × Ii
DS_DNL04SIP16A_10052006
Figure 32: Input voltage ripple for various output models, IO =
16 A (CIN = 2×100 µF tantalum // 47 µF ceramic)
Input Ripple Voltage (mVp-p)
LOAD
SUPPLY
200
150
100
50
5.0Vin
3.3Vin
0
0
1
2
3
4
Output Voltage (Vdc)
Figure 33: Input voltage ripple for various output models, IO =
16 A (CIN = 4×100 µF tantalum // 2×47 µF ceramic)
8
DESIGN CONSIDERATIONS (CON.)
FEATURES DESCRIPTIONS
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.
Remote On/Off
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
20A of glass type fast-acting fuse in the ungrounded lead.
The DNM/DNL series power modules have an On/Off pin for
remote On/Off operation. Both positive and negative On/Off
logic options are available in the DNM/DNL series power
modules.
For positive logic module, connect an open collector (NPN)
transistor or open drain (N channel) MOSFET between the
On/Off pin and the GND pin (see figure 34). Positive logic
On/Off signal turns the module ON during the logic high and
turns the module OFF during the logic low. When the
positive On/Off function is not used, leave the pin floating or
tie to Vin (module will be On).
For negative logic module, the On/Off pin is pulled high with
an external pull-up resistor (see figure 35). 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)
Vo
Vin
ION/OFF
On/Off
RL
Q1
GND
Figure 34: Positive remote On/Off implementation
Vo
Vin
Rpullup
ION/OFF
On/Off
RL
Q1
GND
Figure 35: Negative remote On/Off implementation
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 enters
hiccup mode. The units operate normally once the fault
condition is removed.
DS_DNL04SIP16A_10052006
9
FEATURES DESCRIPTIONS (CON.)
Vtrim = 0.7 − 0.1698 × (Vo − 0.7525 )
Over-Temperature Protection
For example, to program the output voltage of a DNL
module to 3.3 Vdc, Vtrim is calculated as follows
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 try to restart after
shutdown. If the over-temperature condition still exists
during restart, the module will shut down again. This
restart trial will continue until the temperature is within
specification
Remote Sense
Vo
RLoad
TRIM
Rtrim
GND
Figure 37: Circuit configuration for programming output voltage
The DNL 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 line
impedance shall be < 10Ω.
Distribution Losses
Vtrim = 0.7 − 0.1698 × (3.3 − 0.7525) = 0.267V
Vo
Vtrim
RLoad
TRIM
GND
+
_
Distribution Losses
Vo
Vin
using an external resistor
Figure 38: Circuit configuration for programming output voltage
using external voltage source
Sense
RL
GND
Distribution
Distribution
L
Figure 36: Effective circuit configuration for remote sense
operation
Output Voltage Programming
The output voltage of the DNM/DNL can be programmed
to any voltage between 0.75Vdc and 3.3Vdc by
connecting one resistor (shown as Rtrim in Figure 37)
between the TRIM and GND pins of the module. Without
this external resistor, the output voltage of the module is
0.7525 Vdc. To calculate the value of the resistor Rtrim for
a particular output voltage Vo, please use the following
equation:
⎡ 21070
⎤
Rtrim = ⎢
− 5110⎥ Ω
Vo
−
0
.
7525
⎣
⎦
For example, to program the output voltage of the DNL
module to 1.8Vdc, Rtrim is calculated as follows:
⎡ 21070
⎤
Rtrim = ⎢
− 5110⎥ Ω = 15KΩ
⎣1.8 − 0.7525
⎦
DNL can also be programmed by apply a voltage between
the TRIM and GND pins (Figure 38). The following
equation can be used to determine the value of Vtrim
needed for a desired output voltage Vo:
DS_DNL04SIP16A_10052006
Table 1 provides Rtrim values required for some common
output voltages, while Table 2 provides value of external
voltage source, Vtrim, for the same common output
voltages. By using a 1% tolerance trim resistor, set point
tolerance of ±2% can be achieved as specified in the
electrical specification.
Table 1
Vo(V)
Rtrim(KΩ)
0.7525
Open
1.2
41.97
1.5
23.08
1.8
15.00
2.5
6.95
3.3
3.16
Table 2
Vo(V)
Vtrim(V)
0.7525
Open
1.2
0.624
1.5
0.573
1.8
0.522
2.5
0.403
3.3
0.267
10
FEATURE DESCRIPTIONS (CON.)
The amount of power delivered by the module is the
voltage at the output terminals multiplied by the output
current. When using the trim feature, the output voltage of
the module can be increased, which at the same output
current would increase the power output of the module.
Care should be taken to ensure that the maximum output
power of the module must not exceed the maximum rated
power (Vo.set x Io.max ≤ P max).
Voltage Margining
Output voltage margining can be implemented in the DNL
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
Vo
Rmargin-down
The DNL family has 3 different option codes for TRACK
function.
Option code A: 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. (Figure 41)
Option code B: No TRACK function
Option code C: Implementation of advanced power
tracking techniques is based on connecting the power
good signal or selecting proper value for external
resistor R1 (Figure 40 to Figure 43).
PS1
PS1
PS2
PS2
Figure 40: Sequential
Q1
On/Off Trim
PS1
PS1
PS2
PS2
Rmargin-up
Rtrim
Q2
GND
Figure 39: Circuit configuration for output voltage margining
Voltage Tracking
The DNM/DNL 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, ratio-metric and simultaneous. 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.
By connecting multiple modules together, customers can
get multiple modules to track their output voltages to the
voltage applied on the TRACK pin.
Figure 41: Simultaneous
PS1
PS1
PS2
PS2
-ΔV
Figure 42: Ratio-metric
+ΔV
PS1
PS1
PS2
PS2
The DNL family has 3 different option codes for TRACK
function:
DS_DNL04SIP16A_10052006
Figure 43: Ratio-metric
11
FEATURE DESCRIPTIONS (CON.)
Ratio-Metric
Sequential
Sequential start-up (Figure 40) is implemented by
connecting the power good pin of PS1 to the TRACK pin
of PS2 with a resistor–capacitor (RC) circuit. Suggest to
use 1µF ceramic capacitor and 2KΩ resistor here.
Besides, this configuration requires PS1 to have a power
good function.
PS1
PS2
Vin
Vin
VoPS2
VoPS1
PWRGD
Ratio–metric is implemented by selecting the resistor
values of the voltage divider on the TRACK pin. To simplify
the tracking design, set initial value of R2 equal to 20KΩ at
internal circuit and adjust resistor R1 for the different
tracking method. The circuit diagram of Ratio-Metric is the
same as Simultaneous when VoPS2 tracks the VoPS1.
For Ratio-Metric applications that need the outputs of PS1
and PS2 go to the regulation set point at the same time
(Figure 43), use the following equation (1) to calculate the
value of resistor R1,
TRACK
R
ENABLE
ENABLE
set △V=Voset,PS1–Voset,PS2 and △V will be negative.
C
R1 =
[(Voset ,PS 2 + ∆V ) − Vref ]
* 20KΩ --------------(1)
Vref
Simultaneous
Simultaneous tracking (Figure 41) 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.
PS2
PS1
Vin
Vin
Note:
1.
Vref =0.4×Voset,PS2
2.
△V is the maximum difference of voltage between
PS1 and PS2 supply voltage.
For Ratio-Metric applications that need the PS2 supply
voltage rises first at power up and falls second at power
down (Figure 42), use the following equation (2) to
calculate the value of resistor R1,
VoPS2
VoPS1
set △V≦0.4×Voset,PS2 and △V will be negative.
TRACK
ENABLE
ENABLE
R1 =
For type C (DNX0A0XXXX C), the simultaneous tracking
can be accomplished by putting R1 equal to 30.1KΩ
through VoPS1 to the TRACK pin of PS2.
PS1
PS2
Vref
* 20 KΩ ------------------(2)
Note:
1.
Vref =0.4×Voset,PS2
△V is defined as the voltage difference between VoPS1 and
VoPS2 when VoPS2 reaches its rated voltage.
Vin
Vin
VoPS2
VoPS1
30.1K
ENABLE
[(Vo set , ps 2 − ∆V ) − Vref ]
R1
TRACK
ENABLE
DS_DNL04SIP16A_10052006
R2
To
Tracking
circuit
20K
12
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.
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 height of this fan duct is constantly kept
at 25.4mm (1’’).
Thermal Derating
Figure 45: Hot spot temperature measured point
*The allowed maximum hot spot temperature is defined at 125℃
*The over-temperature shutdown is 130℃.
20
DNL04S0A0R16(Standard) Output Current vs. Ambient Temperature and Air Velocity
@ Vin = 5V, Vo = 3.3V (Either Orientation)
Output Current(A)
15
Natural
Convection
100LFM
10
200LFM
300LFM
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.
PWB
FACING PWB
MODULE
400LFM
0
50
55
60
65
70
75
80
85
Ambient Temperature (℃)
Figure 46: DNL04S0A0R16(Standard) output current vs.
ambient temperature and air velocity @Vin=5V, Vo=3.3V(Either
Orientation).
20
DNL04S0A0R16(Standard) Output Current vs. Ambient Temperature and Air Velocity
@ Vin = 5.0V, Vo = 1.5V (Either Orientation)
Output Current(A)
15
AIR VELOCITY
AND AMBIENT
TEMPERATURE
MEASURED BELOW
THE MODULE
Natural
Convection
50.8 (2.0”)
10
100LFM
AIR FLOW
200LFM
5
12.7 (0.5”)
25.4 (1.0”)
Note: Wind Tunnel Test Setup Figure Dimensions are in millimeters and (Inches)
Figure 44: Wind tunnel test setup
DS_DNL04SIP16A_10052006
300LFM
0
50
55
60
65
70
75
80
85
Ambient Temperature (℃)
Figure 47: DNL04S0A0R16(Standard) output current vs.
ambient temperature and air velocity @Vin=5V, Vo=1.5V(Either
Orientation).
13
THERMAL CURVES (CON.)
20
DNL04S0A0R16(Standard) Output Current vs. Ambient Temperature and Air Velocity
@ Vin = 5.0V, Vo = 0.75V (Either Orientation)
Output Current(A)
Natural
Convection
15
20
DNL04S0A0R16(Standard) Output Current vs. Ambient Temperature and Air Velocity
@ Vin = 3.3V, Vo = 0.75V (Either Orientation)
Output Current(A)
15
Natural
Convection
100LFM
10
10
100LFM
200LFM
5
5
200LFM
300LFM
0
0
50
55
60
65
70
75
80
85
Ambient Temperature (℃)
Figure 48: DNL04S0A0R16(Standard) output current vs.
ambient temperature and air velocity @Vin=5V, Vo=0.75V(Either
Orientation).
20
50
55
60
65
70
75
80
85
Ambient Temperature (℃)
Figure 51: DNL04S0A0R16(Standard) output current vs.
ambient temperature and air velocity @Vin=3.3V,
Vo=0.75V(Either Orientation).
DNL04S0A0R16(Standard) Output Current vs. Ambient Temperature and Air Velocity
@ Vin = 3.3V, Vo = 2.5V (Either Orientation)
Output Current(A)
15
Natural
Convection
100LFM
10
200LFM
5
300LFM
400LFM
0
50
55
60
65
70
75
80
85
Ambient Temperature (℃)
Figure 49: DNL04S0A0R16(Standard) output current vs.
ambient temperature and air velocity @Vin=3.3V,
Vo=2.5V(Either Orientation).
20
DNL04S0A0R16(Standard) Output Current vs. Ambient Temperature and Air Velocity
@ Vin = 3.3V, Vo = 1.5V (Either Orientation)
Output Current(A)
15
Natural
Convection
10
100LFM
200LFM
5
300LFM
0
50
55
60
65
70
75
80
85
Ambient Temperature (℃)
Figure 50: DNL04S0A0R16(Standard) output current vs.
ambient temperature and air velocity @Vin=3.3V,
Vo=1.5V(Either Orientation).
DS_DNL04SIP16A_10052006
14
MECHANICAL DRAWING
SMD PACKAGE (OPTIONAL)
DS_DNL04SIP16A_10052006
SIP PACKAGE
15
PART NUMBERING SYSTEM
DNL
04
S
0A0
R
16
P
F
Product
Series
Input Voltage
Numbers of
Outputs
Output
Voltage
Package
Type
Output
Current
On/Off
logic
DNL – 16A
04 - 2.8~5.5V
S - Single
0A0 -
R - SIP
16 -16A
DNM – 10A
12 - 9~14V
Programmable
S - SMD
A
Option Code
N- negative F- RoHS 6/6
P- positive
(Lead Free)
DNS – 6A
A - Standard
Function:
Sequencing
B - No tracking pin
C - Tracking feature
MODEL LIST
Model Name
Packaging
Input Voltage
Output Voltage
Output Current
Efficiency
5.0Vin @ 100% load
DNL04S0A0S16PFA
SMD
2.8 ~ 5.5Vdc
0.75~3.3Vdc
16A
95.0%
DNL04S0A0R16PFA
SIP
2.8 ~ 5.5Vdc
0.75~3.3Vdc
16A
95.0%
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
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_DNL04SIP16A_10052006
16
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