Texas Instruments Evaluation Module for UCC24610 UCC24610EVM-563 UCC24610EVM-563 데이터 시트
제품 코드
UCC24610EVM-563
EVM Test Set Up
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5.4
List of Test Points
Table 2. Test Point and Connector Functional Descriptions
TEST POINT
NAME
DESCRIPTION
Output voltage of EVM; this designator is not populated with a pin in order to facilitate tip and
TP1
Vout+
barrel output ripple voltage measurements in conjunction with TP3, Vout-.
TP2
PGND
Primary side power ground. Use this pin as a reference for TP15, VGG.
Output return of EVM; use this pin to facilitate tip and barrel output ripple voltage
TP3
Vout-
measurements in conjunction with TP1, Vout+.
TP4
SW
Secondary side switch node, reference the probe to U1_GND, TP11 or TP12.
TP5
VD
VD pin, U1. Reference the probe to U1_GND, TP11 or TP12.
Located on the drain trace of the primary side HV MOSFET, the user can cut the trace
TP6
-
between this test point and TP8 to insert their own current loop to monitor primary side drain
current.
current.
EN/TOFF pin, U1, shorting this pin to U1_GND (TP11 or TP12) will disable the GATE of U1
TP7
EN
resulting in body diode conduction.
Located on the drain trace of the primary side HV MOSFET, the user can cut the trace
TP8
-
between this test point and TP6 to insert their own current loop to monitor primary side drain
current.
current.
TP9
GATE
Gate pin, U1. Reference the probe to U1_GND, TP11 or TP12.
TP10
+LOOP
Loop injection point, EVM output.
TP11
U1_GND
GND pin of U1, use as a return for TP4, TP5, TP7, and TP9.
TP12
U1_GND
GND pin of U1, use as a return for TP4, TP5, TP7, and TP9.
TP13
-LOOP
Loop injection point
TP14
AUX
Auxiliary winding of T1. Reference the probe to TP17, PGND.
TP15
VGG
VGG pin, U3. Reference the probe to TP2, PGND.
TP16
ZCD
ZCD pin, U3. Reference the probe to TP17, PGND.
TP17
PGND
Primary side power ground. Use this pin as a reference for TP14, AUX, and TP16, ZCD.
TP18
-
PGND, can be used as a reference when probing the drain pin of Q2
J1
Line
Line input from AC source
J2
Vout+
Positive output terminal of the EVM to the load
J3
Neutral
Neutral input from the AC Source
J4
Vout-
Return connection of the EVM output to the load
10
5-V, 25-W Flyback Converter With Secondary-Side Synchronous Rectification
SLUU434 – August 2010
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