參數(shù)資料
型號： TPS53851RHHT
廠商： TEXAS INSTRUMENTS INC
元件分類： 穩(wěn)壓器
英文描述： SWITCHING CONTROLLER, PQCC36
封裝： PLASTIC, VQFN-36
文件頁數(shù)： 29/66頁
文件大?。?/td> 1264K
代理商： TPS53851RHHT
CLKIO
PHSEL
20 mA
R2
R1
TPS53851
MASTER
SLAVE1
CLKIO
PHSEL
TPS53851
SLAVE2
CLKIO
PHSEL
TPS53851
10 kW
www.ti.com
SLUS985 – DECEMBER 2009
5.27.3.3 Three Devices Operation
To increase the total current capability to six phases, or to increase the number of outputs, two slave
controllers can be added as shown in Figure 5-16. In this configuration for perfect interleaving, the master
and slaves are 120° out of phase. The CLKIO signal has six clocks for each cycle of the switching period;
therefore, the switching period is reduced. In this six-phase mode, the switching frequency is increased
33%.
Figure 5-16. Master Controller and Two Slave Controllers, Six Phases
In this configuration, the master senses that there are two slave controllers, and distributes a six-phase
CLKIO signal. The slave controllers sense the voltage on their PHSEL pins, and delay the proper number
of CLKIO pulses to be 60° or 120° out of phase with the master.
Copyright 2009, Texas Instruments Incorporated
APPLICATION INFORMATION
35
Product Folder Link(s): TPS53851
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