Bench Test Setup Conditions; Headers Description And Placement; Test Points - Richtek RT7247AHGSP Manual

Bench Test Setup Conditions

Headers Description and Placement

Please carefully inspect
following Bill of Materials, to ensure that all components are installed and undamaged. If any
components are missing or damaged during transportation, please contact the distributor or
send e-mail to evb_service@richtek.com.

Test Points

The EVB is provided with the test points and pin names listed in the table below.
Test point/
Pin name
VIN
VOUT
SW
EN
BS
SS
GND
UG7247AHGSP-00 July 2014
the EVB IC and external components, comparing them to the
Signal
Input voltage
Output voltage
Switching node test point
Enable test point
Boot strap supply test point
Soft-start control test point
Ground
Comment (expected waveforms or voltage levels on test
points)
Input voltage range= 4.5V to 18V
Default output voltage = 3.3V
Output voltage range= 0.8V to 15V
(see '' Output Voltage Setting'' section for changing output voltage
level)
SW waveform
Enable signal. EN is automatically pulled high (by R4) to enable
operation. Connect EN low to disable operation.
Floating supply voltage for the high-side N-MOSFET switch
Soft start waveform
Ground
RT7247AHGSP
Evaluation Board
www.richtek.com
4