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PTH12030WAST 参数 Datasheet PDF下载

PTH12030WAST图片预览
型号: PTH12030WAST
PDF下载: 下载PDF文件 查看货源
内容描述: 26 -A , 12 -V输入非隔离宽输出调节电源模块 [26-A, 12-V INPUT NON-ISOLATED WIDE-OUTPUT ADJUST POWER MODULE]
分类和应用: 电源电路输出元件输入元件
文件页数/大小: 26 页 / 824 K
品牌: TI [ TEXAS INSTRUMENTS ]
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PTH12030W/L  
www.ti.com  
SLTS211FMAY 2003REVISED FEBRUARY 2007  
DESIGNING FOR VERY FAST LOAD TRANSIENTS  
The transient response of the dc/dc converter has been characterized using a load transient with a di/dt of  
1 A/µs. The typical voltage deviation for this load transient is given in the specification table using the optional  
value of output capacitance. As the di/dt of a transient is increased, the response of a converter’s regulation  
circuit ultimately depends on its output capacitor decoupling network. This is an inherent limitation with any dc/dc  
converter once the speed of the transient exceeds its bandwidth capability. If the target application specifies a  
higher di/dt or lower voltage deviation, the requirement can only be met with additional output capacitor  
decoupling. In these cases special attention must be paid to the type, value, and ESR of the capacitors selected.  
If the transient performance requirements exceed that specified in this data sheet, or the total amount of load  
capacitance is above 3,000 µF, the selection of output capacitors becomes more important.  
FEATURES OF THE PTH FAMILY OF NON-ISOLATED WIDE OUTPUT ADJUST POWER  
MODULES  
POLA ™COMPATIBILITY  
The PTH/PTV family of nonisolated, wide-output adjustable power modules are optimized for applications that  
require a flexible, high performance module that is small in size. Each of these products are POLA™ compatible.  
POLA compatible products are produced by a number of manufacturers, and offer customers advanced,  
nonisolated modules with the same footprint and form factor. POLA parts are also assured to be interoperable,  
thereby providing customers with a second-source availability.  
From the basic, Just Plug it In functionality of the 6-A modules, to the 30-A rated feature-rich PTHxx030, these  
products were designed to be very flexible, yet simple to use. The features vary with each product. Table 5  
provides a quick reference to the features by product series and input bus voltage.  
Table 5. Operating Features by Series and Input Bus Voltage  
Series  
Input Bus  
IO  
Adjust  
(Trim)  
On/Off  
Inhibit  
Over-  
Current  
Prebias  
Startup  
Auto-  
Track™  
Margin  
Up/Down  
Output  
Sense  
Thermal  
Shutdown  
3.3 V  
6 A  
6 A  
PTHxx050 5 V  
12 V  
6 A  
3.3 V / 5 V  
12 V  
10 A  
8 A  
PTHxx060  
PTHxx010  
PTVxx010  
PTHxx020  
PTHxx020  
PTHxx030  
3.3 V / 5 V  
12 V  
15 A  
12 A  
8 A  
5 V  
12 V  
8 A  
3.3 V / 5 V  
12 V  
22 A  
18 A  
18 A  
16 A  
30 A  
26 A  
5 V  
12 V  
3.3 V/ 5 V  
12 V  
For simple point-of-use applications, the PTH12050 (6 A) provides operating features such as an on/off inhibit,  
output voltage trim, prebias start-up and overcurrent protection. The PTH12060 (10 A), and PTH12010 (12 A)  
include an output voltage sense, and margin up/down controls. Then the higher output current, PTH12020 (18  
A) and PTH12030 (26 A) products incorporate overtemperature shutdown protection.  
The PTV12010 and PTV12020 are similar parts offered in a vertical, single in-line pin (SIP) profile, at slightly  
lower current ratings.  
All of the products referenced in Table 5 include Auto-Track™. This feature was specifically designed to simplify  
the task of sequencing the supply voltages in a power system. This and other features are described in the  
following sections.  
12  
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