Texas Instruments TPS23752 Evaluation Module TPS23752EVM-145 TPS23752EVM-145 데이터 시트
제품 코드
TPS23752EVM-145
General Configuration and Description
5
General Configuration and Description
5.1
Physical Access
lists the EVM connector functionality,
describes the test point availability, and
describes the jumper functionality.
Table 2. Connector Functionality
Connector
Label
Description
J1
PWR + DATA
Power over ethernet (POE) input. Connect to power-sourcing equipment (PSE) power and
data source.
data source.
J2
DATA
Ethernet data pass through. Connect to downstream Ethernet device.
J5
WAKE
Low voltage on pin 1 with respect to pin 2 indicates that S1 is being depressed.
J6
SLP
Momentarily shorting pin 1 to pin 2 causes the TPS23752 to enter sleep mode
J8
MODE
Install a shunt on J8 while J6 is shorted to enable pulsed maintain power signature
(MPS). Remove shunt from J8 while J6 is shorted, enabling DC MPS.
(MPS). Remove shunt from J8 while J6 is shorted, enabling DC MPS.
J9
T2P
Low voltage on pin 1 with respect to pin 2 indicates that a type 2 PSE or an adapter is
present
present
J10
OUTPUT
Output connector to load.
S1
WAKE
Depressing S1 when the TPS23752 is in sleep mode restarts the dc/dc converter.
D11 (GRN)
WAKE
D11 is ON when S1 is depressed and held
D12 (GRN)
T2P
T2P (type 2 PSE) LED. When ON this indicates that a type 2 PSE or an adapter is
present.
present.
D20 (GRN)
OUTPUT
TPS23752 output powered.
D14 (GRN)
D14
Sleep mode status indicator. D14 is ON when TPS23752 is in sleep mode or when a
shunt is installed on J8
shunt is installed on J8
Table 3. Test Points
Test Point
Color
Label
Description
TP1
RED
PAIR12
Data pair from pins 1 and 2 of J1
TP2
ORG
PAIR36
Data pair from pins 3 and 6 of J1
TP3
RED
PAIR45
Spare pair from pins 4 and 5 of J1
TP4
ORG
PAIR78
Spare pair from pins 7 and 8 of J1
TP5
RED
VDD
High-side output from bridge
TP6
BLK
VSS
Low-side output from bridge
TP8
RED
VOUT
Converter output voltage with respect to TP13
TP9
BLK
RTN
Switched low side from TPS23752
TP10
ORG
SDRN
Secondary side switching waveform
TP11
RED
VB
TPS23752 5-V bias voltage
TP12
RED
VC
TPS23752 12-V auxiliary input voltage
TP13
BLK
GND
Converter output ground with respect to TP8
TP14
WHT
GATE
TPS23752 GATE drive output
TP15
ORG
DRN
Primary side switching waveform
TP16
ORG
LOOP
Feedback loop injection point, use with TP8 and TP13
TP17
WHT
CTL
CTL pin input to TPS23752
TP7
SM
EGND
Earth or chassis ground point
6
TPS23752EVM-145: Evaluation Module for TPS23752
SLVU753 – July 2012
Copyright © 2012, Texas Instruments Incorporated