The Fifth Generation, Ultra Small Size, Isolated DC-DC Converter

1.5Watt BTA Series

6

DC-DC Converter

BDD2008

1203

4-4 Measurement Circuit

7

+Vout

4

-

Vout

Load

C2

1

3

-

Vin

+Vin

+

Vin

BTA-W Series

ON/OFF

SW3

2

V

A

Vadj

SW4

V

A

Open = Output OFF

C4

R1

Coaxes cable: 50Ω, 1.5m

R1: 51Ω

C4: 0.1μF

Oscilloscpe

(Measuring

Ripple/Noise)

7

+Vout

5

-

Vout

Load

C1

1

3

-

Vin

+Vin

+

Vin

BTA-S Series

ON/OFF

SW1

2

V

A

Vadj

SW2

V

A

C2, C3: 0.1μF (Multilayer Ceramic Capacitor)

5

C3

V

A

6

Load

6

C1: 0.1μF (Multilayer Ceramic Capacitor)

SW2

SW1

Short = Output ON

Open = Output OFF

Vout = 3.3V→3.6V

= 5V→6V

= 12V→15V

Short:

Open:

= 3.3V, 5V, 12V

Vout

SW3

Short = Output ON

SW4

Short: Vout = ±15V

Open: Vout = ±12V

4-5 Additional Function

Article

Specification/Standarization

Condition

Over Current

Protection Circuit

Operates above 105%,

Auto-recovery type

Over Voltage

Protection Circuit

None

Low Input Voltage

Protection Function

Available

Output Voltage

Adjustable Range

3.15 to 3.6V(BTAXX-03SXXX)

4.75 to 6.0V(BTAXX-05SXXX)

11.4 to 15V(BTAXX-12SXXX)

±11.4 to ±15V(BTAXX-12WXXX)

By External Resistor.

Refer to 7-2

ON/OFF Control

Output ON at Low(0− 0.4V)

Output OFF at open

Refer to 7-1

4-6 Isolation Voltage，Isolation Resistance

1- Isolation Voltage

Input - Output，Input - Case，Output - Case : AC500V，1min.

2- Isolation Resistance

Input - Output，Input - Case，Output - Case : Over 50MΩ(At DC500V)