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FEATURES
* 125 WATTS MAXIMUM OUTPUT POWER * SINGLE OUTPUT UP TO 35A * 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 Industry Control System Distributed Power Architectures Semiconductor Equipment
OPTIONS
Positive logic Remote on/off, Pin length
DESCRIPTION
QEB125 single output DC/DC converters provide up to 125 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 35A current rating.
T E C H N I C A L S P E C I F I C AT I O N
OUTPUT SPECIFICATIONS
Output power
All specifications are typical at nominal input, full load and 25C otherwise noted
INPUT SPECIFICATIONS
18 - 36VDC 24V nominal input 125 Watts, max. Input voltage range 48V nominal input 36 - 75VDC Voltage accuracy Full load and Normal Vin 1.5% Input filter L-C type Minimum load 0% 50VDC 24V nominal input Input surge voltage 100mS max 48V nominal input 100VDC Voltage adjustability (Note 5) + 10% , -20% Nominal Vin and Power up 25mS, typ. Line regulation LL to HL at Full Load 0.2% Start up time constant resistive load Remote ON/OFF 25mS, typ. Load regulation No load to Full Load See table 17VDC 24V nominal input Start-up voltage 48V nominal input 34VDC Remote Sense (Note 5) 10% of Vout 15VDC 24V nominal input 20MHz bandwidth Shutdown voltage Ripple and noise See table 48V nominal input 32VDC (Measured with a 1F M/C and a 10FT/C) Remote ON/OFF (Note 6) 0.02% / C, max. Negative logic(Standard) Temperature coefficient DC-DC ON Short or 0V < Vr < 1.2V DC-DC OFF Open or 3V < Vr < 15V Transient response recovery time 25% load step change 200S Positive logic(Option) DC-DC ON Open or 3V < Vr < 15V Over voltage protection threshold 120% Vout max. DC-DC OFF Short or 0V < Vr < 1.2V (Non-latching Hiccup) -0.5~1.0mA Input current of remote control pin Nominal Vin Over Current Protection threshold 110% ~ 140% of Iout Rated Remote off state input current Nominal Vin 2.5mA Short circuit protection Hiccup, automatics recovery
ENVIRONMENTAL SPECIFICATIONS
GENERAL SPECIFICATIONS
Efficiency Isolation voltage Isolation resistance Isolation capacitance Switching frequency Approvals and standard Case material Weight (approx) MTBF (Note 1) Input to Output Input to Case Output to Case See table
Operating base-plate temperature range (Note 7)
Over temperature protection 1600VDC, min. 1000VDC, min. Storage temperature range 1000VDC, min. Thermal shock 10 ohms, min. Vibration 2500 pF, max. Humidity , Max , Non-Condensing 270 KHz, typ.
7
-40C to +100C (with derating) 110C, max. -55C to +125C MIL-STD-810F
10~55Hz, 2G, 30minutes along X,Y and Z 95% Class A 10 V/m Perf. Criteria A 2KV Perf. Criteria B 1KV Perf. Criteria B 10 Vr.m.s Perf. Criteria A
EMC CHARACTERISTICS
EN55022 EN61000-4-3 EN61000-4-4 EN61000-4-5 EN61000-4-6
IEC60950-1, UL60950-1, EN60950-1 EMI (Note 8) Radiated immunity Aluminum base plate Fast transient (Note 9) 42g (1.46 oz) Surge (Note 9) 6 BELLCORE TR-NWT-000332 2.500 x 10 hrs 5 MIL-HDBK-217F 1.257 x 10 hrs Conducted immunity
Page 1 of 4 Issued Date2008/05/21
Model Number
QEB125-24S3P3 QEB125-24S05 QEB125-24S12 QEB125-24S15 QEB125-48S1P8 QEB125-48S2P5 QEB125-48S3P3 QEB125-48S05 QEB125-48S12 QEB125-48S15
Input Range
18 - 36 VDC 18 - 36 VDC 18 - 36 VDC 18 - 36 VDC 36 - 75 VDC 36 - 75 VDC 36 - 75 VDC 36 - 75 VDC 36 - 75 VDC 36 - 75 VDC
(4) (4) Input Current Output Current Load Output Output Eff Voltage Min. load Full load Ripple & Noise No load(3) Full load(2) (%) regulation 3.3 VDC 5 VDC 12 VDC 15 VDC 1.8 VDC 2.5 VDC 3.3 VDC 5 VDC 12 VDC 15 VDC 0mA 0mA 0mA 0mA 0mA 0mA 0mA 0mA 0mA 0mA 30A 25A 10.42A 8.33A 35A 35A 30A 25A 10.42A 8.33A 100mVp-p 100mVp-p 100mVp-p 100mVp-p 100mVp-p 100mVp-p 100mVp-p 100mVp-p 100mVp-p 100mVp-p 130mA 180mA 190mA 190mA 60mA 60mA 90mA 90mA 130mA 130mA 4970mA 6127mA 6129mA 6125mA 1641mA 2223mA 2455mA 3028mA 3029mA 3027mA 87 89 89 89 84 86 88 90 90 90 10mV 15mV 36mV 45mV 5.4mV 7.5mV 10mV 15mV 36mV 45mV
Note :
1.BELLCORE TR-NWT-000332. Case 1: 80% Stress, Temperature at 40C. MIL-HDBK-217F Notice2 @Ta=25 C, Full load(Ground, Benign, controlled environment) 2.Maximum value at nominal input voltage and full load of standard type. 3.Typical value at nominal input voltage and no load. 4.Typical value at nominal input voltage and full load. 5.Maximum output deviation is 10% inclusive of trim. If remote sense is not being used, the + sense should be connected to its corresponding +OUTPUT and likewise the -sense should be connected to its corresponding -OUTPUT. 6.The positive logic and pin length are optional ( see table ). The pin voltage is referenced to -Vin. 7.Heat sink is optional and P/N7G-0029A-F, 7G-0030A-F, 7G-0031A-F, 7G-0032A-F. 8.The QEB125 meets EN55022 class A and class B only with external components connected before the input pin to the converter. 9.An external input filter capacitor is required if the module has to meet EN61000-4-4, EN61000-4-5. The filter capacitor Power Mate suggest: Nippon chemi-con KY series, 220F/100V, ESR 48m. 10.BASEPLATE GROUNDINGBase-plate should be grounded at one of the four screw bolts prior to operation. 11.The converter is provided by basic insulation.
Page 2 of 4 Issued Date2008/05/21
PIN CONNECTION
PIN EXTERNAL OUTPUT TRIMMING Output can be externally trimmed by using the method shown below.
TRIM UP TRIM DOWN
Define - INPUT ON/OFF + INPUT - OUTPUT - SENSE TRIM + SENSE + OUTPUT
PRODUCT OPTIONS TABLE Option
Negative remote ON/OFF logic, 0.20" pin length (standard) Negative remote ON/OFF logic, 0.145" pin length Negative remote ON/OFF logic, 0.11" pin length Positive remote ON/OFF logic, 0.20" pin length Positive remote ON/OFF logic, 0.145" pin length Positive remote ON/OFF logic, 0.11" pin length
Suffix
-L -K -P -S -M
7
6
RU
6 5
RD
1 2 3 4 5 6 7 8
ExampleQEB125-48S3P3-P
Page 3 of 4 Issued Date2008/05/21
QEB125-48S05 Derating Curve
120
OUTPUT POWER (%)
100 80 60 40 20 0 -40
0 LFM 100 LFM 200 LFM 300 LFM 400 LFM 500 LFM
-27-20
0
20
40
60
80
100
120
AMBIENT TEMPERATURE()
QEB125-48S05 Derating Curve With Heatsink 7G-0029 (Note 7 )
120
0 LFM
OUTPUT POWER(%)
100 80 60 40 20 0 -40
100 LFM 200 LFM 300 LFM 400 LFM 500 LFM
Recommended Filter for EN55022 Class B Compliance The components used in the above figure, together with the manufacturers' part numbers for these components, are as follows:
C1 6.8F/50V C6 1.5nF/3KV QEB125-24Sxx C11 0.1F/50V L1 622H C2 6.8F/50V C7 6.8F/50V C12 1.0nF/3KV L2 224H C3 6.8F/50V C8 6.8F/50V C13 1.0nF/3KV C4 6.8F/50V C9 6.8F/50V C14 1.0nF/3KV C5 1.5nF/3KV C10 0.1F/50V C15 1.0nF/3KV
-20 -10 0
20
40
60
80
100
120
AMBIENT TEMPERATURE()
QEB125-48S05 Efficiency VS Input voltage
92 91 90 89 88 87 86 85 36 40 44 48 52 56 60 64 68 72
EFFICIENCY(%)
INPUT VOLTAGE(V)
QEB125-48S05 Efficiency VS Output Load
EFFICIENCY(%)
95 90 85 80 75 70 65 60 10 20 30 40 50 60 70 80 90 100
C1 C2 C3 C4 C5 100F/100V 1.5F/100V 1.5F/100V 1.5F/100V 1.5nF/3KV C6 C7 C8 C9 C10 1.5nF/3KV 47F/100V 1.5F/100V 1.5F/100V 0.1F/50V QEB125-48Sxx C11 C12 C13 C14 C15 0.1F/50V 1.0nF/3KV 1.0nF/3KV 1.0nF/3KV 1.0nF/3KV L1 L2 620H 620H
OUTPUT LOAD (% of Full Load)
Recommended EN55022 Class B Filter Circuit Layout
Page 4 of 4 Issued Date2008/05/21

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