Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsDev KitsPCB design board

AC Line

AC Neutral

VOUT +

VOUT -

Isolated

Variable AC

Source

1 ohm

Precision Shunt

Current

Measurement

Voltage

Measurement

Power Analyzer

Load

UCC28700EVM-068

TP1

TP2

TP3

TP4

Volt Meter

Oscilloscope

1uF

Scope

Probe

Test Setup

www.ti.com

4 Test Setup

Safety: This evaluation module is not encapsulated and there are voltages that are much greater than 50

V DC.

• If you are not trained in the proper safety of handling and testing power electronics please do not use

this evaluation module.

Voltage Source: Isolated AC source or variable AC transformer capable of 265-V AC cable of handling

10 W.

Voltmeter: One digital voltage meter.

Power Analyzer: Capable of measuring 1 mW to 10 W of input power and capable of handling 265-V

RMS input voltage. Most power analyzers require a precision shunt resistor for measuring input current

and input power of 5 W or less. Please read the power analyzer’s user manual for proper setup.

Oscilloscope:

• 4 channel, 100 MHz.

• Probes capable of handling 600 V.

Output Load: Resistive or electronic load capable of handling 5 W at 5 V.

Recommended Wire Gauge: Insulated 22 AWG.

Figure 3. Test Setup

5 Test Point Description

Table 2. Test Point Functions

TEST POINTS NAME DESCRIPTION

TP1 AC Line Kelvin connection for AC Line

TP2 AC Neutral Kelvin connection for AC neutral

TP3 VOUT + Kelvin connection for VOUT +

TP4 VOUT - Kelvin connection for VOUT -

UCC28700EVM-068 5-W USB Adapter SLUU968–July 2012

Submit Documentation Feedback