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Delphi Series Q48SL, 100W Quarter Brick Familywww.DataSheet4U.com
DC/DC Power Modules: 48V in, 1.5V/35A out
The Delphi Series Q48SL Quarter Brick, 48V input, single output, isolated
DC/DC converter is the latest offering from a world leader in power system
and technology and manufacturing -- Delta Electronics, Inc. This product
family provides up to 100 watts of power or 35A of output current (2.5V and
below) in an industry standard footprint. With creative design technology
and optimization of component placement, these converters possess
outstanding electrical and thermal performances, 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 Delphi Series converters meet all safety requirements with
basic insulation.
FEATURES
High efficiency: 85% @ 1.5V/ 35A
Size: 57.9mmx36.8mmx12.7mm
(2.28”x1.45”x0.50”)
Standard footprint
Industry standard pin out
Fixed frequency operation
Metal baseplate
Input UVLO, Output OCP, OVP, OTP
Basic insulation
No minimum load required
2:1 Input voltage range
ISO 9001, TL 9000, ISO 14001, QS9000,
OHSAS18001 certified manufacturing
facility
UL/cUL 60950 (US & Canada)
Recognized, and TUV (EN60950)
Certified
CE mark meets 73/23/EEC and
93/68/EEC directives
OPTIONS
Positive On/Off logic
Short pin lengths available
APPLICATIONS
Telecom/Datacom
Wireless Networks
Optical Network Equipment
Server and Data Storage
Industrial/Testing Equipment
DATASHEET
DS_Q48SL1R535_01192007

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TECHNICAL SPECIFICATIONS
(TA=25°C, airflow rate=300 LFM, Vin=48Vdc, nominal Vout unless otherwise noted.)
PARAMETER
NOTES and CONDITIONS
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
Input Over-Voltage Lockout
Turn-Off Voltage Threshold
Turn-On Voltage Threshold
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
60% Load
ISOLATION CHARACTERISTICS
Input to Output
Input to Case
Output to Case
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)
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
100ms
Refer to Fig.21 for measuring point
1 minute
100% Load, 36Vin
P-P thru 12µH inductor, 5Hz to 20MHz
120 Hz
Vin=48V, Io=Io.max, Tc=25
Io=Io,min to Io,max
Vin=36V to 75V
Tc=-40to 100
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
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; Tc=40°C
Refer to Fig.21 for measuring point
Q48SL1R535 (Standard)
Min.
Typ.
Max.
Units
-40
-55
1500
36
33
31
1
1.47
1.43
0
110
48
34
32
2
81
79
100
3
0.015
10
55
1.50
±2
±2
±15
70
20
80
100
100
125
75
35
33
3
2.1
150
10
1.53
±5
±5
±50
1.57
110
40
35
150
Vdc
Vdc
°C
°C
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
A
mA
mA
A2s
mA
dB
Vdc
mV
mV
mV
V
mV
mV
A
%
1500
1500
500
10
0
2.4
0
2.4
-20
115
150
150
300
5
5
85
86.5
1200
230
122
2.5
55
110
10
10
10000
0.8
15
0.4
15
1
50
+10
+10
130
mV
mV
us
ms
ms
µF
%
%
Vdc
Vdc
Vdc
M
pF
kHz
V
V
V
V
mA
uA
%
%
%
M hours
grams
°C
DS_Q48SL1R535_01192007
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ELECTRICAL CHARACTERISTICS CURVES
90
36Vin
48Vin
75Vin
85
14.0
12.0
10.0
80
8.0
75
6.0
70
4.0
65 2.0
36Vin
48Vin
75Vin
60
5
10 15 20 25 30 35
OUTPUT CURRENT (A)
Figure 1: Efficiency vs. load current for minimum, nominal, and
maximum input voltage at 25°C.
0.0
5
10 15 20 25 30 35
OUTPUT CURRENT(A)
Figure 2: Power dissipation vs. load current for minimum,
nominal, and maximum input voltage at 25°C.
2.0
1.8
Io=35A
Io=21A
Io=3.5A
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
30 35 40 45 50 55 60 65 70 75
INPUT VOLTAGE (V)
Figure 3: Typical input characteristics at room temperature
DS_Q48SL1R535_01192007
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