NCP345EVB ON Semiconductor, NCP345EVB Datasheet

NCP345EVB

Manufacturer Part Number

NCP345EVB

Description

EVAL BOARD FOR NCP345

Manufacturer

ON Semiconductor

Datasheets

1.NCP345SNT1.pdf (8 pages)

2.NCP345EVB.pdf (1 pages)

3.NCP345EVB.pdf (4 pages)

Specifications of NCP345EVB

Design Resources

NCP345 Demo Board BOM NCP345EVB Gerber Files NCP345/6 EVB Schematic

Main Purpose

Overvoltage Protection

Embedded

Utilized Ic / Part

NCP345

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Secondary Attributes

Primary Attributes

Lead Free Status / Rohs Status

Lead free / RoHS Compliant

For Use With/related Products

NCP345

Other names

NCP345EVBOS

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Test Procedure for the NCP345/6 Evaluation Board

8/27/03

Figure 1: NCP345/6 Demo Board Assembly Drawing

Refer to Table 1 for bolded test values in the following procedure.

Table 1: Test Values

V2*

V4**

* This is the power supply voltage minus the voltage drops across Q1 and D1. It might measure slightly

lower than V1.

** Since C1 is a large capacitor a load (specified in step (3) is required for the voltage to decay to 0V in a

timely manner for functional testing.

1) Connect jumper to J3.

2) Connect jumpers between CNTRL and – pins on J5.

3) Connect 50 Ohms to J2 if D3 is unpopulated, otherwise connect to J4.

4) Apply V1 to J1 + and – pins.

5) Measure voltage at J2 if D3 is unpopulated, otherwise connect to J4. It should equal V2.

6) Apply V3 to J1 + and – pins.

7) Wait 1 second.

8) Measure voltage at J2 if D3 is unpopulated, otherwise connect to J4. It should equal V4.

9) Apply V1 to J1 + and – pins.

10) Apply V5 between Vp on J5 and any open - pin on the board.

11) Connect jumper from step (2) between the CNTRL and + pins on J5.

12) Measure voltage at J2 if D3 is unpopulated, otherwise connect to J4. It should equal V4.

NCP345SNT1

NCP346SN1T1

NCP346SN2T1

Unit

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