- 您现在的位置：买卖IC网 > PDF目录69254 > PTH08T255WAD (TEXAS INSTRUMENTS INC) DC-DC REG PWR SUPPLY MODULE PDF资料下载
参数资料
| 型号： | PTH08T255WAD |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源模块 |
| 英文描述： | DC-DC REG PWR SUPPLY MODULE |
| 封装： | PLASTIC, MODULE-22 |
| 文件页数： | 11/34页 |
| 文件大小： | 4336K |
| 代理商： | PTH08T255WAD |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页当前第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页
Smart Sync
GND
PTH08T250W
Track
C
I1
+
UDG-08149
V
I
Sync
TurboTrans
+Sense
V
O
-Sense
+
GND
C
O1
PRE
GND
Q
CLK
D
V
CC
GND
PTH08T240W
Track
C
I2
+
V
I
Sync
TurboTrans
+Sense
R
SET2
V
O
Adj
V
O
-Sense
+
GND
C
O2
0°
180°
V
O2
f
CLK
= 2 x f
MOD
SN74LVC2G74
V
I
= 5 V
V
O1
R
SET1
V
O
Adj
AGND
www.ti.com ........................................................................................................................................................................................... SLTS290 – NOVEMBER 2008
The overtemperature protection is a last resort mechanism to prevent thermal stress to the regulator.
Operation at or close to the thermal shutdown temperature is not recommended and reduces the long-term
reliability of the module. Always operate the regulator within the specified safe operating area (SOA) limits for
the worst-case conditions of ambient temperature and airflow.
Smart Sync is a feature that allows multiple power modules to be synchronized to a common frequency. When
not used, this pin must be connect to GND. 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.
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<10kHz) allows
the EMI filter to be designed to attenuate only the synchronization frequency. Power modules can also be
synchronized out of phase to minimize ripple current and reduce input capacitance requirements.
The PTH08T255W requires that the external synchronization frequency be present before a valid input voltage is
present or before release of the inhibit control.
Figure 14 shows a typical circuit with two modules synchronized 180° out of phase using a D flip-flop.
Figure 14. Typical Smart Sync Schematic
Copyright 2008, Texas Instruments Incorporated
19
Product Folder Link(s): PTH08T255W
相关PDF资料 |
PDF描述 |
|---|---|
| PTH08T261WAD | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| 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 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| PTH08T255WAS | 功能描述:DC/DC转换器 40A,8-14V In,3-5.25V Out,Non-Iso Pwr Mod 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: |
| PTH08T255WAST | 功能描述:DC/DC转换器 40A,8-14V In,3-5.25V Out,Non-Iso Pwr Mod 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: |
| PTH08T255WAZ | 功能描述:DC/DC转换器 40A,8-14V In,3-5.25V Out,Non-Iso Pwr Mod 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: |
| PTH08T255WAZT | 功能描述:DC/DC转换器 40A,8-14V In,3-5.25V Out,Non-Iso Pwr Mod 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: |
| PTH08T260W | 制造商:TI 制造商全称:Texas Instruments 功能描述:3-A, 4.5-V to 14-V INPUT, NON-ISOLATED, WIDE-OUTPUT, ADJUSTABLE POWER MODULE WITH TurboTrans |
发布紧急采购，3分钟左右您将得到回复。