ZHCSJY3D DECEMBER 2003 – June 2019 TPS54110
PRODUCTION DATA.
请参考 PDF 数据表获取器件具体的封装图。
The switching frequency is set within the range of 280 kHz to 700 kHz by connecting a resistor from the RT pin to AGND. Equation 4 is used to determine the proper RT value.
In this example, the timing-resistor value chosen for R4 is 71.5 kΩ, setting the switching frequency to 700 kHz.
Alternately, the TPS54110 can be set to preprogrammed switching frequencies of 350 kHz or 550 kHz by connecting pins RT and SYNC as shown in Table 3.
FREQUENCY | RT | SYNC |
---|---|---|
350 kHz | Float | Float or AGND |
550 kHz | Float | ≥ 2.5 V |