FEATURES
• 75 WATTS MAXIMUM OUTPUT POWER
• SINGLE OUTPUT UP TO 25A
• COMPACT 2.28 X 1.45 X 0.50 INCH PACKAGE
• HIGH EFFICIENCY UP TO 90%
• 2:1 WIDE INPUT VOLTAGE RANGE
• FIXED SWITCHING FREQUENCY
• INDUSTRY STANDARD FOOTPRINT
• NO MINIMUM LOAD
• ADJUSTABLE OUTPUT VOLTAGE
• UNDER-VOLTAGE LOCKOUT
• INPUT TO OUTPUT ISOLATION (BASIC INSULATION)
• CE MARK MEETS 2006/95/EC, 93/68/EEC AND 2004/108/EC
• UL60950-1, EN60950-1 AND IEC60950-1 LICENSED
• ISO9001 CERTIFIED MANUFACTURING FACILITIES
• COMPLIANT TO RoHS EU DIRECTIVE 2002/95/EC
APPLICATIONS
Wireless Network
Telecom/Datacom
OPTIONS
Positive logic Remote on/off, Pin length
Industry Control System
Distributed Power Architectures
Semiconductor Equipment
DESCRIPTION
QEB75 single output DC/DC converters provide up to 75 watts of output power in
an industry standard quarter-brick package and footprint. These units are
specifically designed to meet the power needs of low-voltage silicon. All models
feature a wide input range, trimmable output voltage and a 25A current rating.
T E C H N I C A L S P E C I F I C AT I O N All specifications are typical at nominal input, full load and 25ºC otherwise noted
OUTPUT SPECIFICATIONS
INPUT SPECIFICATIONS
18 – 36VDC
36 – 75VDC
24V nominal input
48V nominal input
Output power
75 Watts, max.
± 1.5%
Input voltage range
Voltage accuracy
Minimum load
Full load and Normal Vin
Input filter
L-C type
0%
50VDC
100VDC
25mS, typ.
25mS, typ.
17VDC
24V nominal input
48V nominal input
Power up
Input surge voltage 100mS max
Voltage adjustability
Line regulation
Load regulation
Remote Sense
(Note 5)
+ 10% , -20%
±0.2%
Nominal Vin and
Start up time
LL to HL at Full Load
No load to Full Load
(Note 5)
constant resistive load
Remote ON/OFF
See table
10% of Vout
24V nominal input
48V nominal input
Start-up voltage
34VDC
15VDC
32VDC
24V nominal input
48V nominal input
20MHz bandwidth
Shutdown voltage
Ripple and noise
See table
(Measured with a 1μFM/C and a 10μFT/C)
Remote ON/OFF (Note 6)
Negative logic(Standard)
±0.02% / ºC, max.
Temperature coefficient
DC-DC ON
DC-DC OFF
DC-DC ON
DC-DC OFF
Short or 0V < Vr < 1.2V
Open or 3V < Vr < 15V
Open or 3V < Vr < 15V
Short or 0V < Vr < 1.2V
-0.5~1.0mA
Transient response recovery time
25% load step change
200μS
Positive logic(Option)
Over voltage Protection threshold
(Non-latching Hiccup)
120% Vout max.
Input current of remote control pin
Remote off state input current
Nominal Vin
Nominal Vin
Over Current Protection threshold
Short circuit protection
110% ~ 140% of Iout Rated
Hiccup, automatics recovery
2.5mA
ENVIRONMENTAL SPECIFICATIONS
GENERAL SPECIFICATIONS
Efficiency
-40ºC to +100ºC
(with derating)
Operating base-plate temperature range (Note 7)
See table
Over temperature protection
Storage temperature range
Thermal shock
110ºC, max.
-55ºC to +125ºC
MIL-STD-810F
MIL-STD-810F
95%
Input to Output
1600VDC,min.
1000VDC,min.
1000VDC,min.
Isolation voltage
Input to Case
Output to Case
7
Isolation resistance
Isolation capacitance
Switching frequency
Vibration
10 ohms, min.
Humidity , Max , Non-Condensing
2500 pF, max.
270 KHz, typ.
EMC CHARACTERISTICS
EMI (Note 8)
EN55022
Class A
Approvals and standard
Case material
IEC60950-1, UL60950-1, EN60950-1
Aluminum base plate
Radiated immunity
EN61000-4-3
10 V/m Perf. Criteria A
± 2KV
± 1KV
Fast transient (Note 9) EN61000-4-4
Perf. Criteria B
Perf. Criteria B
Weight (approx)
42g (1.46 oz)
Surge (Note 9)
EN61000-4-5
EN61000-4-6
BELLCORE TR-NWT-000332
MIL-HDBK-217F
2.500 x 106 hrs
MTBF (Note 1)
4.422 x 105 hrs
Conducted immunity
10 Vr.m.s Perf. Criteria A
Page 1 of 4 Issued Date:2008/05/21