Texas Instruments UCC25230 12V to 105V Input, 0.2A Output Switching Converter Evaluation Module UCC25230EVM-662 UCC25230EVM-662 데이터 시트

제품 코드

UCC25230EVM-662

Test Procedure

Test Procedure

Set up the EVM based on

CAUTION

High voltage and high temperature present when the EVM is in operation!

6.1

Line/Load Regulation and Efficiency Measurement Procedure

1. Connect the ammeter A1 (0 A to 10 A range) between DC Source and J1 as shown in

2. Prior to connecting the DC source, it is advisable to limit the source current to 4 A maximum. Make

sure the DC source is initially set to 0 V and connected to J1 and A1 as shown in

3. Connect voltmeter, V1 across the DC source as shown in

4. Connect Load1 to J2 as shown in

. Set Load1 to constant current mode to sink 0 A

before

the input voltage on J1 is applied.

5. Connect voltmeter, V2 to J2 as shown in

6. Turn on the ventilation fan making sure to blow air directly on the EVM.

7. Set switch S1 to position B.

8. Increase the DC source voltage from 0 V to 36.0 V

9. Measure VOUT (V2), IOUT, VIN (V1) and I

(A1).

10. Vary LOAD1 from 0 A to a higher value, up to 30 A

11. Increase input voltage to a different value, up to 72 V, and repeat 9 and 10.

6.2

Equipment Shutdown

1. Decrease Load-1 to 0 A.

2. Decrease VIN to 0 V.

3. Shut down VIN and the fan.

4. Shut down the load.

SLUU863

–

February 2012

Biased Half-Bridge Converter with UCC28250 Secondary-Side Control for 48-V

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