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Delphi Series Q48SP, 216W Quarter Brick Family
DC/DC Power Modules: 48V in, 12V/18A out
The Delphi Series Q48SP Quarter Brick, 48V input, 12V single output,
isolated, DC/DC converters are the latest offering from a world leader in
power systems technology and manufacturing Delta Electronics, Inc.
This product family provides up to 216 watts of power or up to 18A of
output current in an industry standard footprint. 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
models are fully protected from abnormal input/output voltage, current,
and temperature conditions. The Q48SP Delphi Series converters meet all
safety requirements with basic insulation.
FEATURES
High efficiency:92.5 @12V/18A
Size: 57.9x36.8x10.8mm (2.28”x1.45”x0.43”)
(w/o heatspreader)
57.9x36.8x12.7mm (2.28”x1.45”x0.50”)
(with heatspreader)
Industry standard pin out
Fixed frequency operation
Fully protected: OTP, OVP, OCP, UVLO
No minimum load required
Wide output trim range: -20~+10%
Remote sense
Fast transient response
Basic insulation and 2250V isolation
ISO 9001, TL 9000, ISO 14001, QS9000,
OHSAS18001 certified manufacturing facility
UL/cUL 60950 (US & Canada) recognized,
TUV (EN60950) certified
CE mark meets 73/23/EEC and 93/68/EEC
directives
OPTIONS
Latched over current protection
Positive remote on/off
Short lead lengths
APPLICATIONS
Telecom/DataCom
Wireless Networks
Optical Network Equipment
Server and Data Storage
Industrial/Test Equipment
DATASHEET
DS_Q48SP12017_01162007
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TECHNICAL SPECIFICATIONS
(TA=25°C, airflow rate=300 LFM, Vin=48Vdc, nominal Vout unless otherwise noted; mounted on board.)
PARAMETER
NOTES and CONDITIONS
Q48SP12017NRFA
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Continuous
Transient (100ms, non-operating)
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 (I2t)
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 DC Current-Limit Inception
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
ISOLATION CHARACTERISTICS
Input to Output
Isolation Resistance
Isolation Capacitance
FEATURE CHARACTERISTICS
Switching Frequency
ON/OFF Control, (Logic Low-Module ON)
Logic Low
Logic High
ON/OFF Current
Leakage Current
Output Voltage Trim Range
Output Voltage Remote Sense Range
Output Over-Voltage Protection
GENERAL SPECIFICATIONS
MTBF
Weight
Over-Temperature Shutdown
100ms
Refer to Figure 22 for the measuring point
100% Load, 36Vin
P-P thru 12µH inductor, 5Hz to 20MHz
120 Hz
Vin=48V, Io=Io.max, Ta=25C
Io=Io,min to Io,max
Vin=36V to 75V
Ta=-40C to135C
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
Full load; 5% overshoot of Vout at startup
Von/off at Ion/off=1.0mA
Von/off at Ion/off=0.0 µA
Ion/off at Von/off=0.0V
Logic High, Von/off=15V
Across Pins 9 & 5, Pout <= max rated power
Pout <= max rated power
Over full temp range; % of nominal Vout
Io=80% of Io, max; Ta=25°C
Refer to Figure 22 for the measuring point
Min.
-0.5
-40
-40
36
33
30
1
11.8
11.6
0
19
0
10
0
2
-20
13.5
Typ.
48
34
32
2
10
50
12
6
6
32
21
300
300
400
8
6
92.5
1000
300
2.40
45
130
Max.
Units
80
100
120
105
2250
75
36
34
3
7
140
11
1
12.2
24
24
60
12.4
150
50
18
24
Vdc
Vdc
°C
°C
Vdc
Vdc
Vdc
Vdc
Vdc
A
mA
mA
A2S
mA
dB
Vdc
mV
mV
mV
V
mV
mV
A
A
`1500
2250
1
15
1
50
+10
0.5
16.5
mV
mV
uS
mS
mS
µF
%
Vdc
M
pF
kHz
V
V
mA
uA
%
V
V
M hours
grams
°C
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ELECTRICAL CHARACTERISTICS CURVES
94
92
90
88
86
84
82
80
78
76
74
36V 48V 75V
72
70
2 4 6 8 10 12 14 16 18
OUTPUT CURRENT(A)
20
18
16
14
12
10
8
6
4
2 36V 48V 75V
0
2 4 6 8 10 12 14 16 18
OUTPUT CURRENT(A)
Figure 1: Efficiency vs. load current for minimum, nominal, and Figure 2: Power dissipation vs. load current for minimum,
maximum input voltage at 25°C.
nominal, and maximum input voltage at 25°C.
Figure 3: Turn-on transient at zero load current. Top Trace: Figure 4: Turn-on transient at load full rated current. Top Trace:
Vout; 5V/div; Bottom Trace: ON/OFF input: 2V/div
Vout: 5V/div; Bottom Trace: ON/OFF input: 2V/div
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