ATMD50F SERIES


50W DC-DC Converter (4:1)


  • Wide input voltage range (4:1) Output Power 50W
  • Ultra-thin Package: 13mm
  • Transfer Efficiency up to 90%
  • Stand-by Power Consumption as low as 3W 
  • Output super-fast start up as low as 10mS
  • Continuous Short Circuit protection, Self-recovery
  • Input under voltage, output over voltage, short circuit, over current protection
  • Switching Frequency 300KHz
  • Isolation Voltage 3000VDC/1500VAC
  • Operating Temperature: -40°C~+85°C
  • Good EMI performance
  • International standard pin-out

Specifications

 

 

3 Year Warranty

 

Approvals:  

 

Typical Product List

Part No

Input Voltage

Range

VDC

Output Voltage/Current

Vo/Io

Input Current (mA)

(Nominal Voltage)

Max.  
Capacitive

Load

Ripple &

Noise

20MHz MAX

Efficiency

%

Nominal

Range

Voltage

V

Current 
A

Full load

mA

No Load

mA

u F

mVp-p

mV

Min

Typ

ATMD50F-110S3V3B3C3

110

40-160

3.3

10

345

25

10000

100

85

88

ATMD50F-110S05B3C3

5

10

525

25

8000

100

86

88

*ATMD50F-110S12B3C3

12

4.167

525

2

3300

200

87

89

*ATMD50F-110S15B3C3

15

3.333

525

2

1200

200

87

89

*ATMD50F-110S24B3C3

24

2.083

525

2

680

200

87

89

*ATMD50F-110S48B3C3

48

1.042

525

2

470

200

87

89

  1. “*” are models being developing; Suffix “C” is with CTRL function;
  2. “-H” suffix is with heat sink, “-T(H)” suffix for chassis mounting(with heat sink);”-TS(H)” suffix for DIN-Rail mounting(with heat sink), DIN-Rail width is: 35mm
  3. Max capacitive load is, when the power supply is fully loaded, the max capacity could be connected to output, if exceed, the power supply cannot start-up;
  4. To reduce no load power consumption and improve efficiency of light-load, IC will be flitter frequency under no-load and light-load operating,
  5. Output cannot be no load, at least with 5% load or above 470uF high frequency low resistance electrolytic capacitor, otherwise the output ripple will rise;

 

 Product Named Method 

 

Input Specification

Input Surge Voltage 1Sec

110Vdc Input

160VdcMax

Under-Voltage Turn-off

36VDC

Start-up Time

10ms (Typ)

Input Filter

Pi filter

CTRL

Module turn-on

Suspended or connect to High level3.5V-12VDC

Module turn-off

Connect to -Vin or connect to low level 0-1.2VDC

Input current when switched off

1mA(Typ)

Reflected Ripple Current

Input full range,connect to test tools

100mA

Note: *The voltage of CTRL pin is relative to -Vin pin.

 

Output Specification

Output Voltage Accuracy

Full voltage full load

Vo

≤±2.0% (?Max)?

Line Voltage Regulation

Nominal load, full voltage range

Vo

≤±1.0%

Load Regulation

10% ~ 100% nominal load

Vo

≤±1.0%

Ripple & Noise

Nominal load, nominal voltage

≤200mVp-p 20MHz bandwidth

Output Over-voltage

Protection

110%~190%Vo

Output Voltage Adjustment

Trim-pin function

±10%(?Typ)?

Output Short circuit

Protection

Hiccup, continuous,self-recovery

Output Over-current protection

110%~200%Io

Dynamic Response

25% nominal load step change

△÷Vo/△÷t

≤±5.0%/500μs;(3V3,5.0V Series≤±8.0%/500μs)

 

General Specification

Switching Frequency

Typical

300KHz

Isolation Capacitor

Typical

2000pF

Operating Temperature

Refer to Temperature Derating Curve

-40℃ ~ +85℃

Storage Temperature

-

-55℃ ~ +125℃

Max Case Temperature

Within Operating Curve

+105℃

Relative Humidity

No condensing

5%~95%

Case Material

-

Aluminum Metal Case

Isolation Voltage

Input to Output

3000Vdc ≤ 0.5mA / 1min        1500VAc ≤ 5mA / 1min

Meantime Between Failure

MIL-HDBK-217F@25℃æ

2X105Hrs

Product Weight

Average

30g

 

 

EMC Characteristics

EMI

CE

CISPR22/EN55032        CLASSB external circuit is needed

RE

CISPR22/EN55032        CLASSB external circuit is needed

EMS

ESD

IEC/EN61000-4-2        Contact ±4KV

perf.Criteria B

RS

IEC/EN61000-4-3        10V/m

perf.Criteria A

EFT

IEC/EN61000-4-4 ±2KVexternal circuit is needed

perf.Criteria B

CS

IEC/EN61000-4-6        3Vr.m.s

perf.Criteria A

Voltage dips, short interruptions and voltage variations immunity

IEC/EN61000-4-29        0%-70%

perf.Criteria B

 

EMC External Recommended Circuit

Recommended Parameter:

Component

110V Input

FUSE

According to customer’s request

MOV

14D201K

LDM1

56uH

TVS

SMCJ170A

C0

560uF/200V

C1,C2,C3

4.7uF/200V

LCM1

15mH

LCM2

56uH

CY1,CY2,CY3

1nF/3KV

 

Temperature Derating Curve

(UNDER TEST)

 

 

B3 Package Dimension (without Heat Sink) and Pin Function

Single (S)

1

2

3

4

5

6

+Vin

-Vin

CTRL

Trim

-Vo

+Vo

Note: If the definition of pin is not in accordance with the model selection manual, please refer to the label on actual item.

 

B3 Package (with Heat Sink) Dimension and Pin Function

 

Package Description

Packing Code

L x W x H

B3without Heat Sink

50.80X25.40X13mm

2.000X1.000X0.5.11inch

B3-Hwith Heat Sink

50.80X25.40X23mm

2.000X1.000X0.905inch

 

Design and Application Reference

 

 

The usage of Trim and Calculating Trim resistor values

The usage circuit of the Trim circuit(dashed line shows internal resistor network)

Vout(VDC)

R1(KΩ)

R2(KΩ)

R3(KΩ)

Vref(V)

3.3

24

14.53

68

1.25

5

24

24

68

2.5

9

12.1

4.62

30

2.5

12

18

4.7

30

2.5

15

24

4.78

30

2.5

24

25.5

2.955

18

2.5

 

 

ATMD50F - MEPOS ELECTRONICS
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