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PT7748 PDF预览

PT7748

更新时间: 2024-02-26 05:25:17
品牌 Logo 应用领域
德州仪器 - TI /
页数 文件大小 规格书
2页 151K
描述
17 AMP “CURRENT BOOSTER” FOR PT7720 SERIES

PT7748 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
包装说明:,Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.77模拟集成电路 - 其他类型:SWITCHING REGULATOR
控制模式:VOLTAGE-MODE最大输入电压:14 V
最小输入电压:11 V标称输入电压:12 V
JESD-30 代码:R-MSMA-T27湿度敏感等级:1
功能数量:1端子数量:27
最高工作温度:85 °C最低工作温度:
最大输出电流:17 A封装主体材料:METAL
封装形状:RECTANGULAR封装形式:MICROELECTRONIC ASSEMBLY
峰值回流温度(摄氏度):215认证状态:Not Qualified
表面贴装:NO切换器配置:BOOST
最大切换频率:400 kHz技术:HYBRID
温度等级:OTHER端子形式:THROUGH-HOLE
端子位置:SINGLE处于峰值回流温度下的最长时间:NOT SPECIFIED
Base Number Matches:1

PT7748 数据手册

 浏览型号PT7748的Datasheet PDF文件第2页 
For assistance or to order, call (800) 531-5782  
Revised 1/13/99  
P T 7 7 4 8 S e r i e s  
Application Notes  
Mechanical Outline  
Product Selector Guide  
17 AMP “CURRENT BOOSTER”  
FOR PT7720 SERIES  
The PT7748 is a new high-perfor-  
A PT7748 current booster adds a  
mance 17 Amp “Current Booster” for  
the PT7720 Series housed in a 27-pin  
SIP package. Multiple PT7748 boosters  
will operate in parallel with the PT7720  
Series boosting output current in incre-  
ments of 17A . Combinations of  
PT7720 and PT7748 current boosters  
can easily supply enough power for virtu-  
ally any multiple megaprocessor  
parallel output stage driven by the  
PT7720. As such, the system runs in  
perfect sychronization providing a low  
noise solution.  
The PT7748 only operates in combi-  
nation with the PT7720 series and is not a  
stand-alone product. Therefore please  
refer the PT7720 series data sheet for  
performance specifications. The PT7748  
also has the same mechanical dimensions  
and package options as the PT7720 series.  
application.  
Pin-Out Information  
Ordering Information  
PT7748  
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  
Do not connect  
Do not connect  
Do not connect  
Do not connect  
Do not connect  
Vin  
Features  
17A Current Boost  
Automatically Tracks Vout of PT7720  
High Efficiency  
Input Voltage Range:  
11V to 14V  
PT Series Suffix  
(PT1234X)  
Case/Pin  
Configuration  
Vertical Through-Hole  
Horizontal Through-Hole  
Horizontal Surface Mount  
N
A
C
Vin  
21 Vout  
Synchronized with PT7720  
27-pin SIP Package  
Run up to 4 in Parallel - 85 Amps  
Vin  
22 Vout  
10 Vin  
23 Vout  
(For dimensions and PC board layout,  
see Package Styles 1000 and 1010.)  
11 Vin  
24 Vout  
12 Do not connect  
13 GND  
25 Vout  
26 Do not connect  
27 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  
PT7720  
1µH  
27  
13 - 19  
5
12  
+
+
CIN  
COUT  
LOAD  
STBY*  
GND  
GND  
REMOTE SENSE (-)  
27  
C
C
= Required 560µF electrolytic  
= Required 1200µF electrolytic  
in  
out  
L1  
L1 = Optional 1µH input choke  
7 - 11  
20 - 25  
PT7748  
1µH  
13 - 19  
+
+
CIN  
COUT  
Output Capacitors: The PT7720 series requires a minimum output capacitance of 1200µF for proper operation. Do not use Oscon type capacitors. The maximum allowable output capacitance  
Is (57,000 ÷ Vout)µF, or 15,000µF, whichever is less.  
Input Filter: An input inductor is optional for most applications. The input inductor must be sized to handle 7ADC with a typical value of 1µH. The input capacitance must be rated for a  
minimum of 4.0 Arms of ripple current when operated at maximum output current and maximum output voltage. Contact an applications engineer for input capacitor selection for  
applications at other output voltages and output currents.  
52  
Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com  

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