EUS25-096-PHARVC中文资料
BUS CONVERTER
EUS25-096 Model
Features:
9 48 Vin, Isolated, 5:1 Fixed Conversion Ratio 9 240 Watt Output at 48 Vin, 55 C, 200 LFM 9 175 Watt Output at 38 Vin, 55 C, 200 LFM 9 Industry Standard 1/8 Brick Footprint
9 Remote Enable (Primary Side, Positive or Negative) 9 Over-temperature and Over Current Protection 9 Direct Parallel Operation for Higher Power 9
RoHS Compliant
Table 1
Input Characteristics
Notes & Conditions
Min
Typ.
Max
Units
Input Voltage Operating Range 36 48 55 Vdc Input Voltage Absolute Maximum
60 Vdc Turn-on Threshold 34 36 Vdc Turn-off Threshold 32 35 Vdc Input Undervoltage Lockout
Hysteresis Voltage 2 Vdc Turn-on Threshold 55 58 Vdc Turn-off Threshold 56 59 Vdc Input Overvoltage Lockout Hysteresis Voltage
2 Vdc Maximum Input Current Steady-State (26 A out)
6.4 Adc No-Load Input Current Enabled state, no load (48 Vin) 50 mA Disabled Input Current
Disabled state (48 Vin) 6 mA Input Reflected Ripple Current Note (9) 50 mA p-p
Inrush Current Transient
0.2 A 2
s Enable – Negative Logic Version Internal 10 K pull-up to 5 V. On State range Off State range -0.1 2.4 0.8 5.0 Vdc
Vdc Enable – Positive Logic Version Internal 100 K pull-down to GND.
On State range Off State range
2.4 -0.1
5.0 0.8
Vdc Vdc
Table 2
Output Characteristics
Notes & Conditions
Min
Typ.
Max
Units
Output Voltage Set Point (Vo=Vin/5 +0/-0.5%) Vin = 48.0 V, Io = 0 A 9.40 9.60 9.80 Vdc Output Load Regulation Io = 0 to 25 A 0.5 V Output Voltage Total Regulation Vin = 38 to 55 V, Io = 0 to 25 A, 6.60 11.20 Vdc Vin = 42 to 53 V, Io = 0 to 25 A, 7.80 10.7 Vdc Output Ripple Voltage & Noise 20 MHz Bandwidth 90 150 mV p-p Output Current Operating Range 0 25 A Output Current Share Accuracy Percent deviation from ideal (8) < 10 % Efficiency Vin = 48 V, Io = 25 A 95 % Turn-On Time Vin present: Enable to 90% Vout 10 mS Start-up Inhibit Time Enabled: Vin applied to 90% Vout 120 mS Transient Response 25% step, 0.1A/μs, ΔVo
160 mV Recovery Time 100 μs Maximum Output Capacitance 3000 μF
EUS25-096 Model
Table 3
Protection Characteristics Notes & Conditions Min Typ. Max Units
Output
Over-Current
Shutdown Non-Latching 27 30 33 A
Re-start
rate
60
msec Over Temperature Shutdown Non-Latching 125 130 °C
Over Temperature Restart Hysteresis 10 °C
Table 4
General Specifications Notes & Conditions Min Typ. Max Units
Isolation Voltage Input to Output 2250 Vdc
Isolation Resistance Input to Output 10 Mohm
Storage Temperature Range Non-condensing -40 125 °C
Operating Temperature Range Ambient -40 100 °C
Thermal Measurement Location Temperature See mechanical drawing for TML location 120 °C
Material
Flammability UL
94V-0
MTBF Calculated (Bellcore TR-332) 2.7 x106 Hrs
Demonstrated >
2
x106 Hrs
Dimension 2.28”L x 0.9”W x 0.48”H (max) (57.9L x 22.9W x 12.19H mm max)
Weight 30
grams Table 5
Standards Compliance Notes & Conditions (6)
UL/CSA 60950 Basic Insulation
EN60950 Certified
by
TUV
Notes:
(1) Vin = 48Vdc, Ta = 25 °C, Airflow = 200 LFM for all data unless otherwise noted.
(2) Output Ripple Voltage and noise is specified when measured with a 10uF tantalum and a 1uF ceramic capacitor at the converter
output pins.
(3) Transient response is specified without a capacitor at the output of the converter.
(4) Thermal shutdown is monitored at the Thermal Measurement Location (TML). See ‘Mechanical Information’ on page 3 for TML
location.
(5) See ‘Safety Considerations’ shown in Figure 1.
(6) De-rating curves are conducted in a controlled environment. End application testing is required to ensure the Thermal Measurement
Location temperature is below the maximum specified.
(7) Recommended airflow direction is from pin 1 to pin 3, or 3 to 1 (transverse).
(8) Current share accuracy is optimized when the source and load impedance presented to each converter is equal.
(9) Input Reflected Ripple is specified when measured with a 12uH source inductance. Without an input filter inductor, input ripple is less
than 1 Arms for an input filter capacitance rated 70 mohms esr
EUS25-096 Model Mechanical Information
Figure 1
Pin Assignment
Table 6 Pin # Pin Name Function
Notes & Conditions
1 Vi(+) Positive Input Voltage
2
En
Input Enable / Disable
Referenced to Vi(-).
Positive Logic: Floating = Enabled Negative Logic: Floating = Disabled 3 Vi(-)
Negative Input Voltage 4 Vo(-) Negative Output Voltage 5 Vo(+)
Positive Output Voltage
EUS25-096 Model
Efficiency Curves
Figure 2
Figure 3
EUS25-096 Model
Power Derating Curves, T TML =120C Output Power as a function of Ambient Temperature and Input Voltage
EUS25-096 Model
Turn-on from Vin (Enable On)
Turn-on from Enable (Vin present)
---TBD-- ----TBD---
Figure 9 Ch1: Vin; Ch2: V out
Figure 10
Ch2: Vout; Ch4: Enable
Vin=48V, Io=22A, Co=3000uF Vin=48V, Io=22A, Co=3000uF
Output Ripple/Noise Thermal Image
---TBD---
Figure 11 Vout @ 50 mV/div. Vin=48V, Io=25A, Co = 0 Figure 12 Vi=42 V, Iout=25 A, @ 25 C, 200 LFM
SP01: 78.7
SP02: 80.8
SP03: 85.0
SP04: 79.3
AIRFLOW
EUS25-096 Model
Safety Considerations
Figure 13
Ordering Information
RoHS Compliant
The EUS series of converters is in compliance with the European Union Directive 2002/95/EC (RoHS) with repsect to the following sustances: lead (Pb), mercury (Hg), cadmium (Cd), hexavalent chromium, polybrominated biphenyls (PBB) or polybrominated diphenyl ethers (PBDE).