参数资料
型号: PTH08T240WAZ
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 COMPLIANT PACKAGE-11
文件页数: 19/39页
文件大小: 1366K
代理商: PTH08T240WAZ
Smart Sync
C 1
220 F
o
m
C 2
o
220 F
m
C 2
22
i
0 F
m
C 1
33
i
0 F
m
R
SET1
R
SET2
PTH08T220W
VI
VO
INH/ UVLO
+Sense
–Sense
GND
Track SYNC
TT
V Adj
O
V Adj
O
V 1
O
V 2
O
VI = 5 V
0
o
GND
PTH08T240W
+Sense
–Sense
GND
Track SYNC
TT
180
o
GND
Vcc
GND
Q
PRE
CLR
CLK
D
fclock= 2 Xfmodules
SN74LVC2G74
SLTS264J – NOVEMBER 2005 – REVISED JUNE 2009 ................................................................................................................................................... www.ti.com
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. Eliminating the low beat frequencies (usually
< 10 kHz) allows the EMI filter to be designed to attenuate only the synchronization frequency. Power modules
can also be synchronized out of phase to minimize source current loading and minimize input capacitance
requirements. Figure 25 shows a standard circuit with two modules syncronized 180° out of phase using a D
flip-flop.
Figure 25. Smart Sync Schematic
26
Copyright 2005–2009, Texas Instruments Incorporated
Product Folder Link(s): PTH08T240W PTH08T241W
相关PDF资料
PDF描述
PTH08T240WAH 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH08T240WAZT 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH08T250WAST 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH08T250WAD 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH08T250WAS 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
相关代理商/技术参数
参数描述
PTH08T240WAZ 制造商:Texas Instruments 功能描述:DC/DC Converter
PTH08T240WAZT 功能描述:DC/DC转换器 10A 4.5-14V-Input Wide-Out Adj Pwr Mdl RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压(标称): 输出端数量:1 输出电压(通道 1):3.3 V 输出电流(通道 1):600 mA 输出电压(通道 2): 输出电流(通道 2): 安装风格:SMD/SMT 封装 / 箱体尺寸:
PTH08T241W 制造商:TI 制造商全称:Texas Instruments 功能描述:10-A, 4.5-V to 14-V INPUT, NON-ISOLATED, WIDE-OUTPUT, ADJUSTABLE POWER MODULE WITH TURBOTRANS
PTH08T241WAD 功能描述:DC/DC转换器 10A 4.5V to 14V Inp Ceramic Cap Version RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压(标称): 输出端数量:1 输出电压(通道 1):3.3 V 输出电流(通道 1):600 mA 输出电压(通道 2): 输出电流(通道 2): 安装风格:SMD/SMT 封装 / 箱体尺寸:
PTH08T241WAS 功能描述:DC/DC转换器 10A 4.5V to 14V Inp Ceramic Cap Version RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压(标称): 输出端数量:1 输出电压(通道 1):3.3 V 输出电流(通道 1):600 mA 输出电压(通道 2): 输出电流(通道 2): 安装风格:SMD/SMT 封装 / 箱体尺寸: