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PT7746 PDF预览

PT7746

更新时间： 2024-01-13 05:03:21
品牌 Logo 应用领域
德州仪器 - TI /
页数 文件大小 规格书
2页 163K
描述
32 AMP “CURRENT BOOSTER” FOR PT7770 SERIES

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中文翻译

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PT7746 技术参数

生命周期：Transferred包装说明：SIP-27
Reach Compliance Code：unknown风险等级：5.77
Is Samacsys：N模拟集成电路 - 其他类型：DC-DC BOOSTER MODULE
JESD-30 代码：R-XSMA-T27端子数量：27
封装主体材料：UNSPECIFIED封装形状：RECTANGULAR
封装形式：MICROELECTRONIC ASSEMBLY认证状态：Not Qualified
表面贴装：NO端子形式：THROUGH-HOLE
端子位置：SINGLEBase Number Matches：1

PT7746 数据手册

 浏览型号PT7746的Datasheet PDF文件第2页 
Application Notes  
Mechanical Outline  
For assistance or to order, call (800) 531-5782  
Product Selector Guide  
P T 7 7 4 6 S e r i e s  
32 AMP “CURRENT BOOSTER”  
FOR PT7770 SERIES  
Revised 8/13/98  
The PT7746 is a new high-perfor-  
A PT7746 current booster adds a parallel  
mance 32 Amp “Current Booster” for  
the PT7770 Series housed in a 27-pin  
SIP package.  
output stage driven by the PT7770. As such,  
the system runs in perfect sychronization  
providing a low noise solution.  
Multiple PT7746 boosters will  
operate in parallel with the PT7770  
boosting output current in incre-  
ments of 32A. Combinations of  
PT7770s and PT7746 current  
boosters can easily supply enough  
power for virtually any multiple  
mega-processor application.  
The PT7746 only operates in  
combination with the PT7770 series and is  
not a stand-alone product. Therefore, please  
refer to the PT7771, PT7772, or PT7777  
series data sheet for performance  
specifications. The PT7746 also has the  
same mechanical dimensions and package  
options as the PT7770 series.  
Pin-Out Information  
Ordering Information  
PT7746❏  
(For dimensions and PC Board layout,  
see Package Styles 1020 and 1030.)  
Pin Function  
Pin Function  
14 GND  
15 GND  
16 GND  
17 GND  
18 GND  
19 GND  
20 Vout  
1
2
3
4
5
6
7
8
9
Do not connect  
Features  
Do not connect  
Do not connect  
Do not connect  
Do not connect  
Do not connect  
Vin  
• 32A Current Boost  
• Automatically Tracks  
Vo of PT7770  
• High Efficiency  
• Input Voltage Range:  
3V to 5.5V  
PT Series Suffix  
(PT1234X)  
Case/Pin  
Configuration  
Vin  
21 Vout  
Vertical Through-Hole  
N
A
C
• Synchronized with PT7770  
• 27-pin SIP Package  
• Run up to 2 in Parallel -  
96 Amps  
Vin  
22 Vout  
Horizontal Through-Hole  
Horizontal Surface Mount  
10 Vin  
23 Vout  
11 Vin  
24 Vout  
12 Do not connect  
13 GND  
25 Vout  
26 Do not connect  
27 Master Sync In  
Standard Application  
PROGRAMMING PINS  
VID0  
VID1  
VID2  
VID3  
VID4  
REMOTE SENSE (+)  
6
4
3
2
1
26  
L1  
VIN  
VOUT  
7 - 11  
20 - 25  
PT7770  
1µH  
27  
13 - 19  
5
12  
+
+
CIN  
COUT  
LOAD  
STBY*  
GND  
GND  
REMOTE SENSE (-)  
When used with PT7771/7772:  
27  
C
= Required 2400µF electrolytic  
= Required 2400µF electrolytic  
= Optional 1µH input choke  
in  
C
out  
L1  
7 - 11  
20 - 25  
L1  
PT7746  
1µH  
When used with PT7777:  
13 - 19  
+
+
C
= Required 2400µF electrolytic  
= Required 680µF electrolytic  
= Optional 1µH input choke  
CIN  
COUT  
in  
C
L1  
out  
Output Capacitors: When used with a PT7771 or PT7772, the PT7746 requires a minimum ouput capacitance of 2400µF. When used with a PT7777,  
the PT7746 requires a minimum ouput capacitance of 680µF for proper operation. Do not use Oscon type capacitors. The maximum allowable output  
capacitance is 30,000µF.  
Input Filter: An input filter is optional for most applications. The input inductor must be sized to handle 32ADC with a typical value of 1µH. The input  
capacitance must be rated for a minimum of 2.6Arms of ripple current. For transient or dynamic load applications, additional capacitance may be required.  
4
Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com  
12

中文翻译

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