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QAS SERIES - 50 WATT
DESCRIPTION
FEATURES
• Overvoltage Protection
• 5-Sided Shielding
QAS DC/DC converters are designed to provide
• Wide Range Input
• Remote Enable
higher output voltages for telecom and industrial
• Short Circuit Protection
• 1500V Isolation
applications. The QAS features remote sense for
• Remote Sense and
accurate point of load regulation, five-sided shielding,
Voltage Trim
and 1500 VDC isolation. The QAS also provides
output voltage trim, overcurrent, short circuit, and
overvoltage protection, allowing use in a wide range of
Efficiency vs. Load (48V Input)
applications.
95
EFFICIENCY %
90
85
QAS060Z57
EFF. (36v)
80
EFF. (48v)
EFF. (75v)
75
10
20
30
40
50
60
70
80
90
100
LOAD %
TECHNICAL SPECIFICATIONS
Input
Voltage Range
48 VDC Nominal
Reflected Ripple
Input Reverse Voltage Protection
Input Undervoltage Lockout
Turn On
Turn Off
Output
Setpoint Accuracy
Line Regulation V
in
Min. - V
in
Max., I
out
Rated
Load Regulation I
out
Min. - I
out
Max., V
in
Nom.
Minimum Output Current
Dynamic Regulation, Loadstep
±1%
±0.2% V
out
±0.2% V
out
10 % I
out
,
Rated
25% I
out
36 - 72 VDC
50 mA
Shunt Diode
34 VDC
30 VDC
Turn-On Time 5V Output
Turn-On Time 57V and 60V Outputs
Remote Shutdown
Switching Frequency
Isolation
Input - Output
Input - Case
Output - Case
Temperature Coefficient
Case Temperature
Operating Range
Storage Range
Humidity Max., Non-Condensing
Vibration, 3 Axes, 5 Min Each
MTBF
†
(Bellcore TR-NWT-000332)
Safety
Weight (Approx.)
General
10 ms
15 ms
Positive Logic
300 kHz
1500 VDC
1050 VDC
500 VDC
0.03%/°C
-25 To +85°C
-40 To +125°C
95%
5g
Consult Factory
Consult Factory
4.0 oz
Pk Deviation 57V and 60V Outputs
8% V
out
Pk Deviation 5V Outputs
4% V
out
Settling Time
500
µs
Voltage Trim Range
±10%
Ripple and Noise, RMS, 100 MHz BW, 5V Output
100 mV Pk-Pk
Ripple and Noise, RMS, 100 MHz BW, 57V and 60V Outputs
200 mV Pk-Pk
Short Circuit / Overcurrent Protection
Shutdown / Hiccup
Current Limit Threshold Range, % of I
out
Rated
110 - 130%
OVP Trip Range
120 - 140% V
out
Nom.
OVP Type
Second Control Loop
Notes
1
For negative logic, add suffix “N” to model number.
MTBF predictions may vary slightly from model to model.
†
Specifications typically at 25°C, normal line, and full load, unless otherwise
stated.
Soldering Conditions: I/O pins, 260°C, ten seconds; fully compatible with
commercial wave-soldering equipment.
Safety: Agency approvals may vary from model to model. Please consult factory
for specific model information.
C-28
QAS SERIES - 50 WATT
MODELS - (See the last page of this file for options.)
Vin
(Volts)
48
48
48
Vin Range
(Volts)
36 - 72
36 - 72
36 - 72
Iin Max.*
(Amps)
1.60
2.00
1.60
Vout
(Volts)
5.0
57.0
60.0
Iout Rated
(Amps)
10.0
1.10
0.83
Ripple & Noise
Pk-Pk (mV)
50
200
200
Efficiency
Typ. **
86%
87%
88%
Model
QAS050ZG
QAS060Z57
QAS050Z60
Denotes advanced product release. Consult factory for product availability.
* Maximum input current at minimum input voltage, maximum rated output power.
** At nominal Vin, rated output.
MECHANICAL DRAWING
2.80"
(71.1mm)
STANDOFF 4PL
MOUNTING INSERTS M3X.5 THRU.
1.850"(47.0mm)
4
1.000"(25.4mm)
1.300"(33.0mm)
1
BOTTOM VIEW
0.600"(15.2mm)
5
0.900"(22.9mm)
2.40"
(61.0mm)
2
6
7
8
0.400"(10.2mm)
0
-0.150"(-3.8mm)
-0.35"(-8.9mm)
0.100"(2.5mm)
3
-0.200"(-5.1mm)
0
-0.15"
(-3.8mm)
0.300"
(7.6mm)
2.200"
(55.9mm)
2.500"
(63.5mm)
DIA 0.040"
(1.0mm)
0.18" (4.6mm)
0.50"
(12.7mm)
Thermal Impedance
Natural Convection
100 LFM
200 LFM
300 LFM
400 LFM
10.0
7.6
5.7
4.4
3.4
°C/W
°C/W
°C/W
°C/W
°C/W
Pin
1
2
3
4
5
6
7
8
Function
-V
in
+V
in
Enable
-V
out
+V
out
-Sense
Trim
+Sense
Inches:
.XX ± 0.020
.XXX ± 0.010
Pin:
± 0.002
Tolerances
(Millimeters)
.X ± 0.5
.XX ± 0.25
± 0.05
( Dimensions as listed unless otherwise
specified.)
Note:
Thermal impedance data is dependent on
many environmental factors. The exact
thermal performance should be validated for
specific application.
C-29
OPTIONS
When ordering equipment options, use the following suffix information. Select the option(s) that
you prefer and add them to the model number. Example ordering options are located below the
options table.
OPTION
Negative Logic
Lucent Compatible Trim
Terminal Strip
Trim
Enable
Trim and Enable
Current Share
Headerless
SUFFIX
N
T
TS
1
2
3
4
Y
APPLICABLE SERIES
HAS, HBD, HBS, HES, LES, QBS,
QES, TES, TQD
HAS, HBD, HBS, HES, QBS, QES
XWS, XWD, XWT
IAS, LES
IAD, IAS, LES, SMS
IAS, LES
SMS
Encapsulated EWS, IWS, OWS
REMARKS
TTL “Low” Turns Module ON
TTL “High” Turns Module OFF
PIN LENGTH AND HEATSINK
OPTIONS
0.110” (2.8mm) Pin Length
0.150” (3.8mm) Pin Length
0.24” (6.1mm) Horizontal Heatsink
0.24” (6.1mm) Vertical Heatsink
0.45” (11.4mm) Horizontal
Heatsink
0.45” (11.4mm) Vertical Heatsink
0.95” (24.1mm) Horizontal
Heatsink
0.95” (24.1mm) Vertical Heatsink
8
9
1H
1V
2H
2V
3H
3V
All Units (Except SMS)
All Units (Except SMS)
All Units (Except DIP, SIP, and SM
Packages)
All Units (Except DIP, SIP, and SM
Packages)
All Units (Except DIP, SIP, and SM
Packages)
All Units (Except DIP, SIP, and SM
Packages)
All Units (Except DIP, SIP, and SM
Packages)
All Units (Except DIP, SIP, and SM
Packages)
Standard Pin Length is 0.180”
(4.6mm)
Includes Thermal Pad
Includes Thermal Pad
Includes Thermal Pad
Includes Thermal Pad
Includes Thermal Pad
Includes Thermal Pad
Example Options:HBS050ZG-ANT3V = HBS050ZG-A with negative logic, Lucent compatible trim, and
0.95” vertical heatsink.
LES015YJ-3N = LES015YJ with optional trim and enable, negative logic.
QBS066ZG-AT8 = QBS066ZG-A with Lucent compatible trim and 0.110” pin length.
NUCLEAR AND MEDICAL APPLICATIONS
Power-One products are not authorized for use as critical components in life support systems,
equipment used in hazardous environments, or nuclear control systems without the express written consent of the President of Power-One, Inc.
TECHNICAL REVISIONS
The appearance of products, including safety agency certifications pictured on labels, may change depending on the
date manufactured. Specifications are subject to change without notice.
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