Datasheet

Test Setup

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5.3 List of Test Points

Table 2. Test Point Functions

TEST POINTS NAME DESCRIPTION

TP1 PGND Input voltage negative test point, for efficiency test

TP2 Vin+ Input voltage positive test point, for efficiency test

TP3 Bias_P1 Primary bias, 9V.

TP4 VOUT+ Output voltage positive test point for efficiency

TP5 VOUT- Output voltage negative test point for efficiency

TP6 Loop+ Feedback loop injection for UCC25230

TP7 Loop+ Feedback loop injection for UCC28250

TP8 Loop- Feedback loop injection for UCC28250

TP9 Loop- Primary side signal ground

TP10 Prebias+ Prebias output positive input

TP11 Vo_Ripple Output voltage ripple test

TP12 Bias_P Primary bias, 9 V

TP13 Bias_S Secondary bias, 8 V

J1 INPUT Input voltage terminals

J2 OUTPUT Output voltage terminals

Biased Half-Bridge Converter with UCC28250 Secondary-Side Control for 48-V SLUU863–February 2012

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