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SI-3201S PDF预览

SI-3201S

更新时间： 2024-11-05 22:43:15
品牌 Logo 应用领域
三垦 - SANKEN 稳压器开关
页数 文件大小 规格书
2页 33K
描述
Switching Type Regulator

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中文翻译

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SI-3201S 技术参数

生命周期：Obsolete包装说明：,
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控制模式：VOLTAGE-MODE
最大输入电压：18 V最小输入电压：8 V
标称输入电压：14 VJESD-30 代码：R-PZFM-T5
功能数量：1端子数量：5
最高工作温度：85 °C最低工作温度：-40 °C
最大输出电流：3 A封装主体材料：PLASTIC/EPOXY
封装形状：RECTANGULAR封装形式：FLANGE MOUNT
认证状态：Not Qualified表面贴装：NO
切换器配置：SINGLE最大切换频率：70 kHz
温度等级：INDUSTRIAL端子形式：THROUGH-HOLE
端子位置：ZIG-ZAGBase Number Matches：1

SI-3201S 数据手册

 浏览型号SI-3201S的Datasheet PDF文件第2页 
Switching Type Regulator SI-3201S  
(unit: mm)  
External Dimensions  
Features  
● Output current of 3A (Ta = 25ºC, VIN = 8 to 18V)  
● High efficiency of 82% (VIN = 14V, IO = 2 A)  
● Requires 5 external components only  
● Built-in reference oscillator (60kHz)  
● Phase internally corrected  
3.2 ±0.2  
4.2 ±0.2  
2.8 ±0.2  
10.0 ±0.2  
● Output voltage internally corrected  
● Built-in overcurrent and thermal protection circuits  
● Built-in soft start circuit  
a
2.6 ±0.1  
b
0.95 ±0.15  
0.85+–00..21  
Absolute Maximum Ratings  
(Ta =25ºC)  
Parameter  
Symbol  
Ratings  
Unit  
V
Conditions  
+0.2  
0.45–0.1  
Input voltage  
V
IN  
35  
3
P1.7±0.7 • 4 = 6.8 ±0.7  
3.9 ±0.7  
8.2 ±0.7  
(4.3)  
Output voltage  
IO  
A
SQ terminal voltage with respect  
to ground  
VO, SQ  
–1  
V
1. V  
a: Type No.  
b: Lot No.  
IN  
2. SWOUT  
3. GND  
4. VOS  
1
2
3
4
5
PD1  
PD2  
Tj  
22  
1.8  
W
W
With infinite heatsink  
Stand-alone  
Power Dissipation  
5. SS  
Junction temperature  
–40 to +150  
–40 to +125  
5.5  
ºC  
(Forming No. 1101)  
Storage temperature  
Tstg  
j-c  
ºC  
Junction to case thermal resistance  
ºC/W  
Junction to ambient-air thermal  
resistance  
66.7  
ºC/W  
j-a  
Standard Circuit Diagram  
L1  
SI-3201S  
1
2
SW Tr  
CQ  
V
IN  
VO  
V
IN  
a
d
f
b
Recommended Operating Conditions  
c
e
g
Ratings  
Parameter  
Symbol  
D1  
Unit  
Conditions  
+
+
min  
8
typ  
max  
18  
C1  
C2  
5
SS  
Input voltage  
V
IN  
V
A
h
VS  
4
i
Output current  
IO  
0.5  
–40  
3
C3  
GND  
3
Operating temperature  
Top  
+85  
ºC  
Ta —PD characteristics  
GND  
GND  
C1: 1000µF  
C2: 1000µF  
L 1: 250µH  
D1: RK46 (Sanken)  
Electrical Characteristics  
(VIN = 14V, IOUT = 2A, Tj = 25ºC unless otherwise specified)  
a: Internal power supply  
b: Thermal protection  
c: Reference oscillator  
d: Reset  
f: Comparator  
g: Overcurrent protection  
h: Error amplifier  
Ratings  
Parameter  
Symbol  
Unit  
Conditions  
min  
typ  
max  
5.20  
100  
50  
i: Reference voltage  
e: Latch & driver  
Output voltage  
VO  
V
4.80  
5.00  
V
V
IN =8 to 18V  
Line regulation  
mV  
mV  
%
O
LINE  
Cautions:  
V
O
IO =0.5 to 3A  
Load regulation  
(1) A high-ripple current flows through C1 and C2. Use high-ripple  
type 1000µF or higher capacitors with low internal resistance.  
Refer to the respective data books for more information on  
reliability and electrical characteristics of the capacitor.  
(2) C3 is a capacitor used for soft start.  
LOAD  
1
*
82  
60  
5
Efficiency  
fOSC  
Iq  
50  
70  
10  
kHz  
mA  
Oscillation frequency  
IO = 0 A  
Quiescent circuit current  
(3) L1 should be a choke coil with a low core loss for switching  
power supplies.  
Overcurrent protection starting  
current  
2
IS  
3.1  
A
*
(4) Use a Schottky barrier diode for D1 and make sure that the  
reverse voltage applied to the 2nd terminal (SQ terminal) is  
within the maximum ratings (–1V). If you use a fast-recovery  
diode, the recovery voltage and the ON forward voltage may  
cause a reversed-bias voltage exceeding the maximum ratings  
to be applied to the 2nd terminal (SQ terminal). Applying a  
reversed-bias voltage exceeding the maximum rating to the  
2nd terminal (SQ terminal) may damage the IC.  
Low level voltage  
VSSL  
ISSL  
RDIS  
0.2  
35  
4
V
3
*
Soft  
start  
Source current when low  
Discharge resistance  
15  
25  
µA  
kΩ  
VSSL =0.2V  
terminal  
Notes:  
*1. Efficiency is calculated by the following equation:  
V • I O  
O
(5) The 4th terminal (V ) is an output voltage detection terminal.  
S
=
• 100 (% )  
V
IN • I IN  
Since this terminal has a high impedance, connect it to the  
positive (+) terminal of C2 via the shortest possible route.  
(6) Leave the 5th terminal (soft start terminal) open when not  
using it. It is pulled up internally.  
*2. A drooping-type overcurrent protection circuit is built in the IC.  
*3. An external voltage may not be applied to the soft start terminal. As shown in the diagram to the  
right, use this IC in the soft start mode with a capacitor or in the open-collector drive mode with a  
transistor. Leave the soft start terminal open when not using it since it is already pulled up in the IC.  
(7) To ensure optimum operating environment, connect the high-  
frequency current line with minimum wiring length.  
SI-3201S  
SI-3201S  
SS  
SI-3201S  
SS  
5
SS  
C3  
5
5
C3  
18  
12

中文翻译

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