List of Test Points
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6 List of Test Points
Table 2. List of Test Points
TEST POINTS NAME DESCRIPTION
TP1 T1OUT UART0 (J9-2) T1OUT
TP2 R1IN UART0 (J9-3) R1IN
TP3 DGND Digital GND of J3 connection
TP4 +3_3V 3.3-V LDO output on board from 12 V
TP5 RC-PWM-0A DPWM0A RC filter
TP6 CT_2 Second phase current sensing signal
TP7 AC_N Input voltage sensing signal of Neutral wire
TP8 DGND Digital GND and same as TP3
TP9 VAUX_S Secondary side 12 V on board. Not used, but can be used for external circuit.
TP10 VAUX_P 12-V output on board from DB-1, UCC28600EVM400V-12V
TP11 +12V_EXT 12 V on board from VAUX_P
TP12 K1 Relay K1 coil
TP14 AC_L Input sensing signal of Line wire
TP15 VBUS_SENSE PFC output voltage sensing signal
TP16 GND Analog GND
TP17 BUS- PFC output return
TP18 REC-1 Rectifier positive output
TP19 CT-1 Current sensing signal from current transformer T1
TP20 ISENSE Current sensing signal after conditioning
TP21 REC-2 Rectifier return
TP22 BUS+ PFC output positive, nominal 390VDC
TP23 SW2 Q2 Drain pin
TP24 SW1 Q3 Drain pin
TP25 Q2-Gate Gate pin of Q2 MOSFET
TP26 Q3-Gate Gate pin of Q3 MOSFET
7 List of Terminals
Table 3. List of Terminals
TERMINAL NAME DESCRIPTION
J1 Line Board AC input line, single-pin connection – screw type, J1 and J2 are AC input terminals,
rated up to 264 V
AC
and maximum 7.5 A, 47 Hz to 63 Hz.
J2 Neutral Board AC input neutral, single-pin connection – screw type
J3 DJ Digital signal connection, 40 pins
J4 AJ Analog signal connection, 40 pins
J5 BUS+ PFC output positive connection, single-pin connection – screw type, BUS+ and BUS- are DC
output terminals, rated maximum 400 V
DC
, and maximum current 1 A.
J6 BUS- PFC output return, single-pin connection – screw type
J7 12V_Sec 12-V auxiliary to supply to external circuit on the secondary side, 2 pins
J8 UART1 Isolated and communication to DC converter, not production tested, 6 pins
J9 UART0 Non-isolated connection, standard RS232, 9 pins,
J10 Sync External 12-V bias and sync signal, 3 pins
J11 Chassis Chassis ground, or earth connection, single-pin connection – screw type
10
Digitally Controlled Single-Phase PFC Pre-Regulator SLUU885B–March 2012–Revised July 2012
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