Texas Instruments TPS2359 Dual-Slot ATCA AdvancdMC Controller with I2C Evaluation Module TPS2359EVM TPS2359EVM 데이터 시트
제품 코드
TPS2359EVM
7.2
Connecting Loads to the TPS2359EVM
www.ti.com
EVM Feature Details
Each of the four power rails of the TPS2359EVM is supplied with some amount of load capacitance in the
form of discrete electrolytics. The capacitors can be connected to or disconnected from their associated
output nodes using 100-mil, 2-pin shunt jumpers across the on-board PCB headers. These capacitors are
intended to simulate input bulk capacitance which may be encountered at the front ends of
AdvancedMC™ modules plugged into the card slots of the target application. The AdvancedMC™
standard specifies the maximum allowable input capacitance on both Management and Payload Power
rails. The TPS2359EVM provides up to 150
form of discrete electrolytics. The capacitors can be connected to or disconnected from their associated
output nodes using 100-mil, 2-pin shunt jumpers across the on-board PCB headers. These capacitors are
intended to simulate input bulk capacitance which may be encountered at the front ends of
AdvancedMC™ modules plugged into the card slots of the target application. The AdvancedMC™
standard specifies the maximum allowable input capacitance on both Management and Payload Power
rails. The TPS2359EVM provides up to 150
µ
F capacitance on each of the two Management Power
outputs, according to the AdvancedMC™ maximum limit. The EVM also provides up to 880
µ
F of
capacitance, implemented in increments of 220
µ
F devices, on each of the Payload Power rails, to
approximate the 800
µ
F limit of the standard. In addition, low-level (mA) load resistors can be jumpered in
across each output and return. These limited load resistors are intended primarily as reset devices
between output ramp events, particularly when loaded with significant capacitance.
between output ramp events, particularly when loaded with significant capacitance.
lists the EVM module’s output voltage nodes, and for each one indicates the associated jumper
reference designators, and the resultant load value with jumper installed.
Table 8. EVM On-Board Loads
OUTPUT RAIL
JUMPER
DEVICE
VALUE
SLOTA_MP
J30
C16
150
µ
F
J29
R12
270
Ω
SLOTB_MP
J32
C21
150
µ
F
J31
R13
270
Ω
SLOTA_PWR
J25
C12
220
µ
F
J26
C13
220
µ
F
J27
C14
220
µ
F
J28
C15
220
µ
F
J24
R10
1 k
Ω
SLOTB_PWR
J34
C17
220
µ
F
J35
C18
220
µ
F
J36
C19
220
µ
F
J37
C20
220
µ
F
J33
R11
1 k
Ω
Banana jacks are provided along the right-hand edge of the board for connection of the user’s optional
test loads. The output banana jack reference designators are listed in Table 4 along with the voltage rail
available at each one. Also, the net names are screen printed on the PCB, adjacent to their respective
jacks.
test loads. The output banana jack reference designators are listed in Table 4 along with the voltage rail
available at each one. Also, the net names are screen printed on the PCB, adjacent to their respective
jacks.
SLUU318 – August 2008
17
TPS2359 Dual-Slot ATCA™ AdvancedMC™ Controller with I
2
C Evaluation Module