Texas Instruments TPS7A6350EVM Evaluation Module TPS7A6350EVM TPS7A6350EVM Datenbogen
Produktcode
TPS7A6350EVM
Board Layout
The options given by the EVM (changing resistors gives more) are listed in
, indicating the range of
the service-frequency.
Table 2. Watchdog Setting
SERVICE
SERVICE
SETTING
ROSC
FREQUENCY
FREQUENCY
(kHz)
(k
Ω
)
MIN
MAX
(Hz)
(Hz)
25.0
200
6
9
250.0
20
60
90
500.0
10
120
180
Open Jumper
open
7
12
WD_FLT is the output of the watchdog. If properly triggered, it stays high. If not or improperly triggered, it
will provide a low-pulse. The duration of the pulse equals 1/fOSC and can be used to verify the internal
clock frequency. If the jumpers are changed on ROSC, a power-cycle is required, since their value is only
recognized during power-up.
will provide a low-pulse. The duration of the pulse equals 1/fOSC and can be used to verify the internal
clock frequency. If the jumpers are changed on ROSC, a power-cycle is required, since their value is only
recognized during power-up.
2.2
Setup
The input voltage range for the converter is (V
OUT
+ 0.3V) volts to 40 volts. The EVM can support up to
300mA of load current.
2.3
Operation
The TPS7A63xxQPWP will power-up after the V
BAT
voltage has exceeded the Power-On Reset threshold.
In this configuration, the device will power up when power is applied.
3
Board Layout
, and
show the board layout for the TPS7A63xxQPWP EVM PCB.
The PowerPAD
™
package offers an exposed thermal pad to enhance thermal performance. This must be
soldered to the copper landing on the PCB for optimal performance. The PCB provides 2 oz copper
planes on the top and bottom to dissipate heat.
planes on the top and bottom to dissipate heat.
3
SLVU477
–
June 2011
TPS7A63xxEVM Evaluation Module
Copyright
©
2011, Texas Instruments Incorporated