BAC1 Series

Isolated 1W Regulated Single Output AC/DC Converters

KAC_BAC1C.C01 Page 6 of 14

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APPLICATION NOTES (Continued)

Components required to meet datasheet specifications - 24V output types

Advisory Notes

The BAC1 series is not hermetically sealed, customers should ensure that parts are fully dried before input power application.

Output Capacitance and start-up times

The recommended specified caps on page 4 and 5 can already meet datasheet specification, there is no need to add extra caps. However, if customers connects to load

capacitance, the below load capacitance are max (additional to recommended specified caps) to ensure start up at minimum AC input.

Minimum Load

The minimum load to meet full datasheet specification is 5% of the full rated load across the specified input voltage range.

24V output type - minimum input voltage requirements

At -40C the part is guaranteed to start into 100% load with a minimum input voltage of 115Vac; once the product is operating, the product will continue to operate at lower

input voltages with higher output loading.

The product will start at -40C with 80% or lower load with an input voltage of 100VAC; once the product is operating, the product will continue to operate at lower input

voltages with higher output loading.

1

7

5

3

FUSE

C2

D1

L1

10

12

+Vout

-Vout

AC (L)

AC (N)

+

MOV

C1

FUSE

1W 10Ω fusible resistor

MOV

Component fitted for compliance with EN61000-4-5, Installation class 3, perf criteria A

L1

330μH

C1

6.8μF 400V

C2

47μF 25mΩ low ESR polymer

D1

SMBJ30A transient voltage suppressor - component fitted for overshoot protection

Part No.

Maximum Load Capacitance (per output)

Start-up times (AC input)

Start-up times (DC input)

μF

s

s

BAC1S05SC

220

0.5

5

BAC1S12SC

100

1

5

BAC1S24SC

100

1

5