产品系列

TSMG10-48D0503W

FEATURES

Wide Input Voltage Range of 36-130V

High efficiency for Extended Operating Range

Input-Output Isolation

Short Circuit Protection for Each Output

Five year Warranty

Compact Size

APPLICATIONS

HDSL/xDSL Systems

Pair Gain Systems

Remote Power Feeding Communications Systems

Wide Input Range DC/DC Applications

5Vdc and 3.3Vdc Power Supply from 48Vdc TNV Line

DESCRIPTION

The SMG10-48D0503W module is a wide range input voltage DC/DC converter. The module employs advanced power topology that enables high efficiency, a wide input range and compact size. It is especially designed to work as the remote (NTU) power module in remotely fed  HDSL systems. The module has a shutdown mode, which when activated ("High" level on CNT pin), reduces the input current to sleep-mode level of approximately 1mA. The module is designed to perform optimally while working in conjunction with SMG10-48DXX module series, but may also be used in a wide range of other DC/DC applications. One of the SMG10-48D0503W’s most valuable features is its ability to work with input voltages as low as 36Vdc. This feature enables the use of the module in systems, which are locally powered from a TNV 48Vdc line. In these cases, there is no need to use any additional DC/DC converters for logic circuits supply power, thereby reducing system costs and complexity.The SMG10-48D0503 W offers enhanced efficiency and an extended temperature range, commonly required for HDSL/xDSL repeater applications. The Module also includes an adjustable output voltage range of ±100mV and features a plastic cover thereby reducing unit weight. Reducing the Module’s output voltage level by a few mVolts may reduce the logic circuits and overall RT modem’s power consumption.

ABSOLUTE MAXIMUM RATINGS

Input Voltage …………..         36 to72 V

Storage Temperature ………….. - 40oC to 100?oC

Isolation Voltage (Input to Output1, Output2) …1500Vdc

 PERFORMANCE / FUNCTIONAL SPECIFICATIONS

Unless otherwise indicated, the data below applies to the specified operating input voltage, load (resistive), and temperature range, Cin=10uF.

Num

Parameter

Conditions

min

typ

max

Unit

1

Input voltage

 

36

 

 

 

130

V

 

2

Input current

Vin=36V,Io1=0.3,Io2=1.1

 

 

0.28

A

3

Input reflected ripple

Measure on cin=10uF BW=20MHz

 

 

 

 

200

mVp-p

4

Switching Frequency

 

 

150

 

kHz

5

Output power

 

 

 

6.5

W

6

Output voltage1

Output voltage2

Maximum load

Maximum load

4.95

3.2

5.05

3.3

5.15

3.4

V

7

Output1 current

Output2 current

 

0.22

0.03

 

1.1

0.3

A

8

ripple and noise

output1

output2

Measured on 0.1uF ceramic capatior BW=20MHz@25oC

 

50

50

70

70

mV

9

Output voltage regulation(line/load /temperature)

Outputs are proportionally loaded

Iout1=0.22 to1.1A

Iout2=0.03 to 0.3A

 

 

±1

±2

%

10

Output1 cross regulation

 Output2 cross regulation

Iout1=1.1A, 0.03<Iout2<0.3A

Iout2=0.3A,0.22<Iout1<1.1A

 

 

±2

±2.5

%

11

Efficiency

Vin=72V  Pout=6.5w

Pout=3.5w

 

80

77

 

%

12

CNT

Vcnt=5V  Vo=OFF,Vcnt==0V,Vo=ON

 

 

 

OK

13

Short circuit protection

 

 

 

 

OK

14

MTBF

 

600000

 

 

Hours

15

Ambient temperature

Derated from
+65
oC by 280mW/oC

-40

 

 

 

+85

oC

16

Relative humidity

 

 

 

93

%

17

Isolation input and output

1500VDC,1min,0.5mA

 

 

 

OK

remark

Redaction                    Check:                           Approval

 

PIN CONNECTIONS

Pin  Function         Description

1  VOutput 1, 2-     Return line for Output 1 and Output 2

2  VOutput 1+       Primary output, regulated, 5.05V/1.1 Amp maximum

3  VOutput 2+       Secondary output, regulated, 3.3V/0.3 Amp maximum

4  NC                    Not connected

5  TRIM (NC)         Output Voltage Adjustment

6  Vin +                 Typically feeds from the line through bridge rectifier to prohibit voltage reversal.

7  CNT                  relative to Vin- (pin 8) with an internal pull down resistor. High logic level will inhibit operation of the module, and the devices current consumption will drop to an idle level. Leaving this pin unconnected, or connecting it to a low logic level, will enable the outputs. When the CNT function is not used it is recommended to permanently connect the Inhibit terminal to Vin-  (pin 8).

8  Vin -                   Negative supply terminal pin. Typically feeds from the line through the bridge rectifier prohibit voltage reversal.

 

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