参数资料
型号: PTH08T261WAD
厂商: TEXAS INSTRUMENTS INC
元件分类: 电源模块
英文描述: 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
封装: ROHS COMPLIAT PACKAGE-10
文件页数: 19/38页
文件大小: 1206K
代理商: PTH08T261WAD
V
O
V
I
INH/UVLO
-Sense
GND
Track SYNC TT
VoAdj
C 2
330
F
I
m
C 2
200
F
O
m
R
2
SET
V =5V
I
V 1
O
V 2
O
PTH08T260W
V
CC
GND
f
=2xf
clock
modules
CLK
CLR
SN74LVC2G74
0
o
PRE
D
Q
180
o
+Sense
GND
C 1
200
F
O
m
R
1
SET
C 1
330
F
I
m
V
O
V
I
INH/UVLO
-Sense
GND
Track SYNC TT
VoAdj
PTH08T230W
+Sense
SLTS272F
– DECEMBER 2006 – REVISED APRIL 2011
Smart Sync
Smart Sync is a feature that allows multiple power modules to be synchronized to a common frequency. Driving
the Smart Sync pins with an external oscillator set to the desired frequency, synchronizes all connected modules
to the selected frequency. The synchronization frequency can be higher or lower than the nominal switching
frequency of the modules within the range of 240 kHz to 400 kHz (see Electrical Specifications table for
frequency limits). Synchronizing modules powered from the same bus, eliminates beat frequencies reflected back
to the input supply, and also reduces EMI filtering requirements. These are the benefits of Smart Sync. Power
modules can also be synchronized out of phase to minimize source current loading and minimize input
capacitance requirements. Figure 22 shows a standard circuit with two modules syncronized 180
° out of phase
using a D flip-flop.
Figure 22. Typical SmartSync Circuit
26
Copyright
2006–2011, Texas Instruments Incorporated
相关PDF资料
PDF描述
PTH08T260WAST 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH08T261WAST 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH08T260WAD 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH08T260WAZ 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH08T261WAZ 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
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