Download www.BDTIC.com/ON/ Equipment Set Up Diagram Test Procedure for NCP5217AGEVB Demonstration Board

Test Procedure for NCP5217AGEVB Demonstration Board
V+
V+
PSU1
20V/2A
PSU2
5V/0.1A
V-
V-
V
Vo
e-Load
0~15A
Equipment Set Up Diagram
1/20/2010
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Demonstration Board Jumper Location Map
J100 = Testing Used
Default = Open
SW1 = EN
Default = All open
J1=Power Good LED Enable
Default = Close
J2: Mode Selection
OCP Only (Default)
OCP + AVP
1/20/2010
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Equipment List
Item
1
2
3
Qty
1
2
1
Description
Electronic Load. KIKUSUI-PLZ153W or equivalent.
Power Supply. AGILENT-E3632A or equivalent. (Note: build-in ammeter)
Digital Multimeter. AGILENT-34401A or equivalent.
Demonstration Board Jumper Setting
Jumper
Status
J1
-
JP2
-
JP100
-
SW1
-
Description
Power good LED enable
Default = close
Open = power off the LED
Close = LED lits when the system is good.
Mode selection
Default = see “Demo board jumper location map” diagram
Test jumper
Default = open
EN pin
Default = all open
Demonstration Board Terminal Pins List
Terminal
VIN
VIN_GND
V5
PGND
1/20/2010
Description
Device input voltage (5-27V)
Device power ground
Device analog circuit bias (4.5 ~ 5.5V)
Device power ground
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Test Procedures
1.
2.
3.
4.
All Jumpers are set as “Default”
Set up the demonstration board shown at “Equipment Set Up Diagram”
Set PSU1=20V, PSU2=5V. For safety set current limit of PSU1=2A, PSU2=0.1A
Measuring results are tabulated in the following table
Note: PSU = Power Supply Unit
e-Load = Electronic Load
PSU1
e-Load
Vo
LED
Current Consumption
0
~0A
1.52-1.54V
LED1 ON
2
0.15-19A
1.52-1.54V
LED1 ON
5
0.38-0.47A
1.52-1.54V
LED1ON
8
0.62-0.76A
1.52-1.54V
LED1 ON
8Æ15A
VoÆ0V
LED2 ON
Note:
The current consumption of PSU2 should be below 20mA for all tests.
1/20/2010
Comment
Normal operation
Normal operation
Normal operation
Normal operation
Over current protection test
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