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PT7704A PDF预览

PT7704A

更新时间: 2023-02-15 00:00:00
品牌 Logo 应用领域
德州仪器 - TI 开关
页数 文件大小 规格书
3页 116K
描述
18A SWITCHING REGULATOR, 750kHz SWITCHING FREQ-MAX, SMA27, HORIZONTAL THROUGH HOLE, SIP-27

PT7704A 技术参数

生命周期:Obsolete零件包装代码:MODULE
包装说明:HORIZONTAL THROUGH HOLE, SIP-27针数:27
Reach Compliance Code:unknownECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.84
模拟集成电路 - 其他类型:SWITCHING REGULATOR最大输入电压:5.5 V
最小输入电压:4.5 V标称输入电压:5 V
JESD-30 代码:R-XSMA-T27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:18 A
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切换器配置:BUCK
最大切换频率:750 kHz温度等级:OTHER
端子形式:THROUGH-HOLE端子位置:SINGLE
Base Number Matches:1

PT7704A 数据手册

 浏览型号PT7704A的Datasheet PDF文件第2页浏览型号PT7704A的Datasheet PDF文件第3页 
For assistance or to order, call (800) 531-5782  
SLTS126  
(Revised 2/26/1998)  
P T 7 7 0 4  
S e r i e s  
18 AMP “BIG-HAMMER” PROGRAMMABLE  
INTEGRATED SWITCHING REGULATOR  
The PT7704 is an 18 Amp high-  
The output voltage of the PT7704  
performance, Integrated Switching  
Regulator (ISR) housed in a 27-pin  
SIP package. The 18A capability  
allows easy integration of the latest  
high-speed, low-voltage µPs and bus  
drivers into existing 5V systems.  
The PT7704 series has been de-  
signed to work in parallel with one or  
more of the PT7749 - 18A current  
boosters for increased Iout in incre-  
ments of 18A.  
programmable from 2.9V to 3.65V  
via 4 control inputs. These inputs  
are selectively grounded by the user  
to set the desired output voltage.  
A differential remote sense is also  
provided, which can automatically  
compensate for voltage drop between  
the ISR to the load.  
1200µF of output capacitance are  
required for proper operation.  
Pin-Out Information  
Pin Function  
Pin Function  
10 Vin  
Pin Function  
19 GND  
20 Vout  
21 Vout  
22 Vout  
23 Vout  
24 Vout  
25 Vout  
1
2
3
4
5
6
7
8
9
VID0  
Standard Application  
PROGRAMMING PINS  
VID0  
VID1  
VID2  
11 Vin  
VID1  
VID2  
VID3  
12 Remote Sense Gnd  
13 GND  
14 GND  
15 GND  
16 GND  
17 GND  
18 GND  
REMOTE SENSE (+)  
4
3
2
1
26  
VID3  
L1  
VIN  
VOUT  
7
-
11  
20 - 25  
PT7704  
1µH  
STBY* - Stand-by  
Do not connect  
Vin  
27  
13  
-
19  
5
12  
+
+
CIN  
COUT  
LOAD  
SYNC OUT  
GND  
GND  
STBY*  
REMOTE SENSE (-)  
Vin  
Vin  
26 Remote Sense V  
out  
27 Sync Out  
C
C
= Required 1200µF electrolytic  
= Required 1200µF electrolytic  
in  
out  
For STBY* pin; open = output enabled; ground = output disabled.  
L1 = Optional 1µH input choke  
Specifications  
PT7704 SERIES  
Characteristics  
(Ta = 25°C unless noted)  
Symbols  
Conditions  
Min  
Typ  
Max  
Units  
(1)  
(1)  
(2)  
(2)  
Output Current  
Io  
Ta = +60°C, 200 LFM, pkg N  
Ta = +25°C, natural convection  
0.1  
0.1  
18  
15  
A
A
(3)  
Input Voltage Range  
Vin  
0.1A Io 15A  
4.5  
5.5  
V
Output Voltage Tolerance  
Vo  
Vin = +5V, Io = 15A  
Vo-0.03  
Vo+0.03  
V
0°C Ta +65°C  
Line Regulation  
Load Regulation  
Vo Ripple/Noise  
Regline  
Regload  
Vn  
4.5V Vin 5.5V, Io = 15A  
Vin = +5V, 0.1 Io 15A  
Vin = +5V, Io = 15A  
±10  
±10  
50  
mV  
mV  
mV  
Transient Response  
with Cout = 1200µF  
ttr  
Io step between 7.5A and 15A  
Vo over/undershoot  
100  
200  
µSec  
mV  
Vos  
Efficiency  
η
Vin = +5V, Io = 10A  
Vo = 3.3V  
Vo = 2.9V  
89  
87  
%
%
Switching Frequency  
ƒo  
Ta  
Ta  
Ts  
4.5V Vin 5.5V  
0.1A Io 15A  
650  
0
700  
750  
+85  
kHz  
°C  
Absolute Maximum  
Operating Temperature Range  
(4)  
Recommended Operating  
Temperature Range  
Forced Air Flow = 200 LFM  
Over Vin and Io Ranges  
0
+65  
°C  
°C  
Storage Temperature  
Mechanical Shock  
-40  
+125  
Per Mil-STD-883D, Method 2002.3  
1 msec, Half Sine, mounted to a fixture  
500  
10  
G’s  
Mechanical Vibration  
Per Mil-STD-883D, Method 2007.2,  
20-2000 Hz, Soldered in a PC board  
G’s  
Weight  
Vertical/Horizontal  
31/41  
grams  
Notes: (1) ISR-will operate down to no load with reduced specifications. Please note that this product is not short-circuit protected.  
(2) The PT7704 series can be easily paralleled with one or more of the PT7749 Current Boosters to provide increased output current in increments of 18A.  
(3) The minimum input voltage is 4.5V or V +1.2V, whichever is greater.  
out  
(4) See SOA curves.  
Output Capacitors: The PT7704 series requires a minimum ouput capacitance of 1200µF for proper operation. Do not use Oscon type capacitors. The maximum  
allowable output capacitance is 15,000µF. See Capacitor Application Note.  
Input Filter: An input filter is optional for most applications. The input inductor must be sized to handle 15ADC with a typical value of 1µH. The input capacitance must  
be rated for a minimum of 1.3Arms of ripple current. For transient or dynamic load applications, additional capacitance may be required.  
Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.ti.com/powertrends  

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