NCP345EVB ON Semiconductor, NCP345EVB Datasheet
![EVAL BOARD FOR NCP345](/photos/28/37/283755/ncp345evb_sml.jpg)
NCP345EVB
Manufacturer Part Number
NCP345EVB
Description
EVAL BOARD FOR NCP345
Manufacturer
ON Semiconductor
Specifications of NCP345EVB
Design Resources
NCP345 Demo Board BOM NCP345EVB Gerber Files NCP345/6 EVB Schematic
Main Purpose
Overvoltage Protection
Embedded
No
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
h
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
V1
V2*
V3
V4**
V5
* 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
6
6
8
0
2
NCP346SN1T1
4
4
5
0
2
NCP346SN2T1
5
5
6
0
2
Unit
V
V
V
V
V