参数资料
型号: PTH08T240FAD
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
文件页数: 19/39页
文件大小: 1345K
代理商: PTH08T240FAD
Smart Sync
GND
PTH08T220W
Track
C
I1
330 mF
+
UDG-07132
V
I
Sync
TurboTrans
+Sense
V
O
-Sense
+
GND
C
O1
220 mF
PRE
GND
Q
CLK
D
V
CC
GND
PTH08T240F
Track
C
I2
220 mF
+
V
I
Sync
TurboTrans
+Sense
R
SET2
V
OAdj
V
O
-Sense
+
GND
C
O2
1000 mF
180°
V
O2
f
CLK= 2 x fMOD
SN74LVC2G74
V
I= 5 V
V
O1
R
SET1
V
OAdj
Inhibit/
UVLO
Inhibit/
UVLO
a
SLTS277D – DECEMBER 2006 – REVISED MARCH 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 between 240 kHz and 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. If unused, connect the Smart Sync pin to GND (pin 3). Figure 29 shows a standard circuit with two
modules syncronized 180° out-of-phase using a D flip-flop.
Figure 29. Smart Sync Schematic
26
Copyright 2006–2009, Texas Instruments Incorporated
Product Folder Link(s): PTH08T240F
相关PDF资料
PDF描述
PTH12010LAZT 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH12010LAST 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH12010LAZ 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH12010WAST 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH12030WAZT 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
相关代理商/技术参数
参数描述
PTH08T240FAS 功能描述:DC/DC转换器 10-A 4.5-14V Input Pwr Module 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:
PTH08T240FAST 功能描述:DC/DC转换器 10-A 4.5-14V Input Pwr Module 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:
PTH08T240FAZ 功能描述:DC/DC转换器 10-A 4.5-14V Input Pwr Module 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:
PTH08T240FAZT 功能描述:DC/DC转换器 10-A 4.5-14V Input Pwr Module 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:
PTH08T240W 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?