GLC50-48G【PDF 1/2 页】POWER SUPPLY SWITCHER 5OW 48V

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GLC50 Commercial/GLM50 Medical

50 WATT GLOBAL PERFORMANCE SWITCHERS

GLOBAL PERFORMANCE SWITCHERS

Features:

? Cost-effective power source

? Universal input 90-264 Vac

? 2-year warranty

? Compact (4.25” x 2.50” x 1.25”; meets

1U applications)

? Overload and overvoltage protection

? Conducted EMI exceeds FCC Class B and

CISPR 22 Class B (Commercial models) and

CISPR 11 Class B (Medical models)

? Commercial UL/CSA/IEC60950-1, EN60950 approvals

? Medical UL/EN/IEC60601-1, CSA22.2 No. 601,

? RoHS compliant models available (G suffix)

? marked to LVD

SPECIFICATIONS

DC Power Supplies

Ac Input

90-264 Vac, 47-63 Hz single phase..

Input Current

Maximum input current at 120 Vac, 60 Hz with full rated output load: 1.5 A

Hold-Up Time

15 ms minimum from loss of ac input at full load, nominal line (115 Vac).

Output Power

50 W continuous, 60 W peak. Peak ratings are for 60 s maximum duration,

10% duty cycle. During peak load condition, output regulation may exceed

total regulation limits.

Output Regulation

To maintain specified regulation on multi-output models, output #1 load

power must be at least 1/5th of, and not greater than 5 times output #2 load

power.

Temperature Coefficient

0.03%/°C typical on all outputs.

Output Noise

0.5% rms, 1% pk-pk, 20 MHz bandwidth, differential mode. Measured with noise

probe directly across output terminals of the power supply.

Transient Response

500 μs typical response time for return to within 0.5% of final value for a 50% load

step change. ?i/?t<0.2 A/μs. Maximum voltage deviation is 3.5%. Startup/shut-

down overshoot less than 3%.

Voltage Adjustment

Built-in potentiometer adjusts V1 ±5%.

EMI/EMC Compliance

All models include built-in EMI filtering to meet the following emissions require-

ments:

Overload Protection

Fully protected against short circuit and output overload. Short circuit pro-

tection is cycling type power limit on outputs 1 & 2; foldback type on output

3. Recovery after fault is automatic. See output ratings chart for additional

notes or conditions.

Efficiency

70-85% at full rated load, nominal input voltage, depending on model and

load distribution.

EMI SPECIFICATIONS

Conducted Emissions GLC

Conducted Emissions GLM

Static Discharge

RF Field Susceptibility

Fast Transients/Bursts

Surge Susceptibility

COMPLIANCE LEVEL

EN55022 Class B; FCC Class B

EN55011 Class B; FCC Class B

EN61000-4-2, 6 kV contact, 8 kV air

EN61000-4-3, 3 V/meter

EN61000-4-4, 2 kV, 5 kHz

EN61000-4-5, 1 kV diff., 2 kV com.

Minimum Load

Operating without minimum load will not degrade reliability, but regula-

tion may be affected. Multiple output models require 20% minimum load

on V1 for proper regulation. Single models require 5% minimum load when

a transient load greater than 30% is applied or removed, but will operate

without load.

Input Protection

Internal ac fuse provided. Designed to blow only if a catastrophic failure oc-

curs in the unit—fuse does not blow on overload or short circuit.

Inrush is limited by internal thermistors. Inrush at 240 Vac,

averaged over the first ac half-cycle under cold start

conditions will not exceed 37 A.

Commercial Leakage Current

160 μA 254 Vac @ 60 Hz input (with no deviations).

Commercial Safety

All GLC models are approved to UL1950, CSA22.2 No.

234 Level 3, IEC950 and EN60950.

Medical Leakage Current

100 μA 264 Vac @ 60 Hz input (normal conditions).

Medical Safety

All GLM50 models are approved to UL/EN/IEC60601-1, CSA22.2 No. 601.

All specifications are typical at nominal input, full load at 25 O C unless otherwise stated

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