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TPS40140 Datasheet(PDF) 26 Page - Texas Instruments

Part No. TPS40140
Description  TPS40140 Dual or 2-Phase, Stackable Controller
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPS40140 Datasheet(HTML) 26 Page - Texas Instruments

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CLKIO
PHSEL
20 A
SLAVE2
CLKIO
PHSEL
TPS40140
R2
R1
TPS40140MASTER
SLAVE1
CLKIO
PHSEL
TPS40140
SLAVE5
CLKIO
PHSEL
TPS40140
SLAVE4
CLKIO
PHSEL
TPS40140
SLAVE3
CLKIO
PHSEL
TPS40140
ILIM2
ILIM2
ILIM2
BP5
10 k
TPS40140
SLUS660I – SEPTEMBER 2005 – REVISED JANUARY 2015
www.ti.com
Figure 24. Master Controller and Five Slave Controllers, 12-Phases
In this configuration, the master senses that there are two slave controllers (due to the 2 resistors) and
distributes a six-phase CLKIO signal. Slave1 and slave2 are turned on at 60° and 120° respectively, as before
with two slaves. However, to get twelve phases with a six-phase clock, both edges of the CLKIO signal are used
to control the slaves. With the ILIM2 tied high on slave3,slave4, and slave5, they turn on at the rising edge of
CLKIO while the master and slave1 and slave2 turn on at the falling edge of CLKIO.
If four slaves are desired, just delete one of the slaves from Figure 24. The interleaving is not perfect because
there is be 30° between the master and three slaves. The deleted slave causes 60° between the two adjacent
slaves. See Figure 26 for phasing details.
26
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Copyright © 2005–2015, Texas Instruments Incorporated
Product Folder Links: TPS40140


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