Texas Instruments TPS43335EVM Evaluation Module TPS43335EVM TPS43335EVM 데이터 시트
제품 코드
TPS43335EVM
ENB
disabled
ENB
enabled
0
1
1
0
ENC
disabled
ENC
enabled
0
1
1
0
SYNC
external
clock
LPM
0
1
SYNC
SYNC
0
1
forced continuous
conduction mode
OR
spread spectrum
0
1
RT
600KHz
RT
RT
400KHz
240KHz
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Setup
JP3 – ENB is the jumper used to enable buck controller B. The controller will be enabled when the ENB is
high and disabled when low.
high and disabled when low.
Figure 3. ENB Jumper Settings
JP3 – ENC is the jumper used to enable the boost pre-regulator. The converter will be enabled when the
ENC is high and disabled when low.
ENC is high and disabled when low.
Figure 4. ENC Jumper Settings
JP4 – SYNC is the external clock input for switching frequency synchronization of the buck converters and
to enable Low Power Mode (LPM). The external clock source can be attached to the center pin of JP4. A
high logic level on this pin ensures forced continuous mode operation of the buck controllers and inhibits
transition to low power mode. An open or low allows discontinuous mode operation, and entry into low
power mode at light loads. On the TPS43332 and TPS43336, a high level enables frequency-hopping
spread spectrum while an open or a low level disables the spectrum.
to enable Low Power Mode (LPM). The external clock source can be attached to the center pin of JP4. A
high logic level on this pin ensures forced continuous mode operation of the buck controllers and inhibits
transition to low power mode. An open or low allows discontinuous mode operation, and entry into low
power mode at light loads. On the TPS43332 and TPS43336, a high level enables frequency-hopping
spread spectrum while an open or a low level disables the spectrum.
Figure 5. SYNC Jumper Setting
JP5 – RT is the jumper used to choose the switching frequency of the Buck controllers. The operating
frequency can be set to 240 KHz, 400 KHz or 600 KHz.
frequency can be set to 240 KHz, 400 KHz or 600 KHz.
Figure 6. RT Jumper Setting
3
SLVU457 – April 2011
TPS4333xEVM
© 2011, Texas Instruments Incorporated