FEATURES
High efficiency: 91.5% @ 5V/20A
Size: 33.0x22.8x9.5mm
(1.30”x0.90”x0.37”)
Industry standard footprint and pinout
Fixed frequency operation
SMD and through-hole versions
Input UVLO
OTP and output OCP, OVP
Output voltage trim: -20%, +10%
Monotonic startup into normal and
pre-biased loads
1500V isolation and basic insulation
No minimum load required
No negative current during power or
enable on/off
ISO 9001, TL 9000, ISO 14001, QS 9000,
OHSAS18001 certified manufacturing
facility
UL/cUL 60950-1 (US & Canada)
Recognized
Delphi Series V48SH, 1/16
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Brick 100W
DC/DC Power Modules: 48V in, 5V, 20A out
The Delphi Series V48SH, 1/16 Brick, 48V input, single output, isolated
DC/DC converter, is the latest offering from a world leader in power
systems technology and manufacturing ― Delta Electronics, Inc. This
product family provides up to 100 watts of power or 40A of output current
(1.8V and below) in an industry standard 1/16 brick form factor (1.30” x
0.90”). The 5V output offers one of the highest output currents available
and provides up to 91.5% efficiency at full load. 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. All
modules are protected from abnormal input/output voltage, current, and
temperature conditions. For lower power needs, but in a similar small
form factor, please check out Delta V36SE (50W), S48SP (36W or 10A)
and S36SE (17W or 5A) series standard DC/DC modules.
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OPTIONS
SMD pins
Short pin lengths available
Positive remote On/Off
Heat spreader
APPLICATIONS
Optical Transport
Data Networking
Communications
Servers
DATASHEET
DS_V48SH05020_11222013
TECHNICAL SPECIFICATIONS
(T
A
=25°C, airflow rate=300 LFM, V
in
=48Vdc, nominal Vout unless otherwise noted.)
PARAMETER
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Continuous
Transient (100ms)
Operating Temperature
Storage Temperature
Input/Output Isolation Voltage
INPUT CHARACTERISTICS
Operating Input Voltage
Input Under-Voltage Lockout
Turn-On Voltage Threshold
Turn-Off Voltage Threshold
Lockout Hysteresis Voltage
Maximum Input Current
No-Load Input Current
Off Converter Input Current
Inrush Current (I
2
t)
Start up Current
Input Terminal Ripple Current
Input Reflected-Ripple Current
Input Voltage Ripple Rejection
OUTPUT CHARACTERISTICS
Output Voltage Set Point
Output Voltage Regulation
Over Load
Over Line
Over Temperature
Total Output Voltage Range
Output Voltage Ripple and Noise
Peak-to-Peak
RMS
Operating Output Current Range
Output Over Current Protection
DYNAMIC CHARACTERISTICS
Output Voltage Current Transient
Positive Step Change in Output Current
Negative Step Change in Output Current
Settling Time (within 1% Vout nominal)
Turn-On Transient
Start-Up Time, From On/Off Control
Start-Up Time, From Input
Maximum Output Capacitance
EFFICIENCY
100% Load
60% Load
ISOLATION CHARACTERISTICS
Input to Output
Isolation Resistance
Isolation Capacitance
FEATURE CHARACTERISTICS
Switching Frequency
ON/OFF Control, Negative Remote On/Off logic
Logic Low (Module On)
Logic High (Module Off)
ON/OFF Control, Positive Remote On/Off logic
Logic Low (Module Off)
Logic High (Module On)
ON/OFF Current (for both remote on/off logic)
ON/OFF Current (for both remote on/off logic)
Leakage Current (for both remote on/off logic)
Output Voltage Trim Range
Output Voltage Remote Sense Range
Output Over-Voltage Protection
GENERAL SPECIFICATIONS
MTBF
Weight
Over-Temperature Shutdown
NOTES and CONDITIONS
V48SH05020 (Standard)
Min.
Typ.
Max.
Units
80
100
121
125
1500
75
34
32
2
50
7
35.5
33.5
3
4
80
12
1
5.7
0.15
15
Vdc
Vdc
°C
°C
Vdc
Vdc
Vdc
Vdc
Vdc
A
mA
mA
A
2
s
A
A
mA
dB
Vdc
mV
mV
mV
V
mV
mV
A
%
100ms
Refer to figure 20 for measuring point
-40
-55
36
32.5
30.5
1
100% Load, 36Vin
With 100uF external input capacitor
Peak, Vin=36V, 100% Load, With 10000uF Co
RMS, Vin=48V, With 100uF input cap.
P-P thru 12µH inductor, 5Hz to 20MHz
120 Hz
Vin=48V, Io=Io.max, Tc=25°C
Io=Io, min to Io, max
Vin=36V to 75V
Tc=-40°C to125°C
Over sample load, line and temperature
5Hz to 20MHz bandwidth
Full Load, 1µF ceramic, 10µF tantalum
Full Load, 1µF ceramic, 10µF tantalum
Output Voltage 10% Low
48V, 10µF Tan & 1µF Ceramic load cap, 0.1A/µs
50% Io.max to 75% Io.max
75% Io.max to 50% Io.max
4.925
3.8
0.1
8
45
5.0
±5
±5
±50
4.85
110
35
0
110
5.075
5.15
160
50
20
140
100
100
100
12
12
160
160
200
28
28
10000
mV
mV
us
ms
ms
µF
%
%
Cap ESR>=15mohm;
Full load; 5% overshoot of Vout at startup;
Vin=48V
Vin=48V
0
90
90
91.5
91.5
1500
10
1500
300
Von/off
Von/off
Von/off
Von/off
Ion/off at Von/off=0.0V
Ion/off at Von/off=2V
Logic High, Von/off=15V
Pout
≦
max rated power
Pout
≦
max rated power
Over full temp range; % of nominal Vout
Io=80% of Io, max; Ta=40°C, airflow rate=400FLM
Open frame
Refer to figure 20 for measuring point
-0.7
2
-0.7
2
10
-20
130
1.4
14.2
128
50
10
10
0.8
15
0.8
15
0.3
Vdc
MΩ
pF
kHz
V
V
V
V
mA
uA
uA
%
%
%
M hours
grams
°C
DS_V48SH05020_11222013
2
ELECTRICAL CHARACTERISTICS CURVES
94
91
88
85
48Vin
82
36Vin
11.0
10.0
9.0
8.0
75Vin
7.0
6.0
48Vin
36Vin
79
76
75Vin
5.0
4.0
73
70
4
8
12
16
20
3.0
2.0
4
8
12
16
20
Figure 1:
Efficiency vs. load current for minimum, nominal, and
maximum input voltage at 25°C
3.5
Figure 2:
Power dissipation vs. load current for minimum,
nominal, and maximum input voltage at 25°C.
3
INPUT CURRENT(A)
2.5
2
1.5
1
0.5
30
35
40
45
50
55
60
65
70
75
INPUT VOLTAGE(V)
Figure 3:
Typical full load input characteristics at room
temperature
DS_V48SH05020_11222013
3
ELECTRICAL CHARACTERISTICS CURVES
For Negative Remote On/Off Start up
0
0
0
0
Figure 4:
Turn-on transient at full rated load current
(10 ms/div). Vin=48V. Top Trace: Vout, 1.5V/div;
Bottom Trace: ON/OFF input, 5V/div
Figure 5:
Turn-on transient at zero load current
(10 ms/div). Vin=48V. Top Trace: Vout: 1.5V/div,
Bottom Trace: ON/OFF input, 5V/div
For Input Voltage Start up
0
0
0
Figure 6:
Turn-on transient at full rated load current
(10 ms/div). Vin=48V. Top Trace: Vout, 1.5V/div;
Bottom Trace: Vin , 20V/div
0
Figure 7:
Turn-on transient at zero load current
(10 ms/div). Vin=48V. Top Trace: Vout, 1.5V/div;
Bottom Trace: Vin, 20V/div
0
0
0
0
Figure 8:
Output voltage response to step-change in
load current (75%-50%-75% of Io, max; di/dt = 0.1A/µs).
Load cap: 10µF tantalum capacitor and 1µF ceramic
capacitor. Top Trace: Vout (100mV/div, 200us/div),
Bottom Trace: Iout (5A/div). Scope measurement should
be made using a BNC cable (length shorter than 20
inches). Position the load between 51 mm to 76 mm (2
inches to 3 inches) from the module
Figure 9:
Output voltage response to step-change in
load current (75%-50%-75% of Io, max; di/dt =
1.0A/µs). Load cap: 100µF tantalum capacitor and 1µF
ceramic capacitor. Top Trace: Vout (100mV/div,
200us/div), Bottom Trace: Iout (10A/div). Scope
measurement should be made using a BNC cable
(length shorter than 20 inches). Position the load
between 51 mm to 76 mm (2 inches to 3 inches) from
the module
DS_V48SH05020_11222013
4
ELECTRICAL CHARACTERISTICS CURVES
is
ic
Vin+
+
Cs: 220uF
100uF,
+
Vin-
ESR=0.2 ohm @
25
o
C 100KHz
0
Figure 10:
Test set-up diagram showing measurement points
for Input Terminal Ripple Current and Input Reflected Ripple
Current.
Note: Measured input reflected-ripple current with a
simulated source Inductance (L
TEST
) of 12 μH. Capacitor Cs
offset possible battery impedance. Measure current as shown
above
Figure 11:
Input Terminal Ripple Current, i
c
, at full
rated output current and nominal input voltage with
12µH source impedance and 33µF electrolytic
capacitor (100 mA/div, 1us/div)
Copper
Vo(+)
Strip
0
Vo(-)
10u
1u
SCO
PE
RESISTIVE
LO
AD
Figure 12:
Input reflected ripple current, i
s
, through a 12µH
source inductor at nominal input voltage and rated load
current (20 mA/div, 1us/div)
Figure 13:
Output voltage
measurement test setup
noise
and
ripple
0
Figure 14:
Output voltage ripple at nominal input voltage
and rated load current (Io=40A)(50 mV/div, 1us/div)
Load capacitance: 1µF ceramic capacitor and 10µF
tantalum capacitor. Bandwidth: 20 MHz. Scope
measurements should be made using a BNC cable (length
shorter than 20 inches). Position the load between 51 mm
to 76 mm (2 inches to 3 inches) from the module.
DS_V48SH05020_11222013
5
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