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SC1417BIMSTR PDF预览

SC1417BIMSTR

更新时间： 2024-11-30 04:05:31
品牌 Logo 应用领域
商升特 - SEMTECH 转换器稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管
页数 文件大小 规格书
11页 186K
描述
MicroPower, 620kHz PWM, Step-up DC/DC Converter

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中文翻译

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SC1417BIMSTR 技术参数

是否无铅： 含铅是否Rohs认证： 不符合
生命周期：Obsolete零件包装代码：TSSOP
包装说明：MO-187AA, MSOP-8针数：8
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.87
Is Samacsys：N模拟集成电路 - 其他类型：SWITCHING REGULATOR
控制模式：CURRENT-MODE控制技术：PULSE WIDTH MODULATION
最大输入电压：12 V最小输入电压：1.5 V
标称输入电压：2 VJESD-30 代码：S-PDSO-G8
JESD-609代码：e0长度：3 mm
功能数量：1端子数量：8
最高工作温度：85 °C最低工作温度：-40 °C
最大输出电流：1.2 A封装主体材料：PLASTIC/EPOXY
封装代码：TSSOP封装等效代码：TSSOP8,.19
封装形状：SQUARE封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：NOT SPECIFIED认证状态：Not Qualified
座面最大高度：1.1 mm子类别：Switching Regulator or Controllers
表面贴装：YES切换器配置：BOOST
最大切换频率：720 kHz温度等级：INDUSTRIAL
端子面层：TIN LEAD端子形式：GULL WING
端子节距：0.65 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：3 mm
Base Number Matches：1

SC1417BIMSTR 数据手册

 浏览型号SC1417BIMSTR的Datasheet PDF文件第2页浏览型号SC1417BIMSTR的Datasheet PDF文件第3页浏览型号SC1417BIMSTR的Datasheet PDF文件第4页浏览型号SC1417BIMSTR的Datasheet PDF文件第5页浏览型号SC1417BIMSTR的Datasheet PDF文件第6页浏览型号SC1417BIMSTR的Datasheet PDF文件第7页 
SC1417B  
MicroPower, 620kHz PWM,  
Step-up DC/DC Converter  
POWER MANAGEMENT  
Description  
Features  
The SC1417B is a fixed frequency, current mode step-up  
dc-dc converter. It operates over a wide input supply range  
of 1.5V to 12V, making it suitable for battery input and  
TFT-LCD applications. The 620kHz constant frequency  
oscillator minimizes the size of external components and  
allows simple filtering for noise sensitive environments.  
The integrated power NPN supports peak currents of up  
to 0.9A enabling the device to support 150mA at 15V  
from a 5V supply. The maximum switch duty cycle of  
85% (typical) allows output to input voltage ratios as high  
as 6.5 in step-up configurations, thus allowing 2V to 12V  
boost operation.  
‹ Operates from 1.5V to 12V supply voltage  
‹ High efficiency >85%  
‹ 150mA @ 15V from 5V input  
‹ Internal switch peak current of 0.9A  
‹ Programmable output voltage  
‹ Powers up into full load  
‹ Pulse-by-pulse current limit/thermal shutdown  
‹ 620kHz fixed frequency current mode converter  
‹ Low current shutdown mode extends battery life  
‹ 18V output capability  
‹ Low battery detector  
‹ MSOP-8 package. Available in Lead-free package,  
fully WEEE and RoHS compliant  
‹ Pin-for-pin compatible with LT1317B  
The SC1417B features a low battery detector and a  
200mV reference circuit which remains active during shut  
down. The part consumes less than 50µA in shutdown.  
The low battery detect output goes low when the input  
battery voltage has dropped below a user programmable  
level. Pulse-by-pulse current limit and thermal shutdown  
protect the converter during load faults.  
Applications  
‹ TFT-LCD Bias supplies  
‹ Constant current LED bias supplies  
‹ Pagers  
‹ GPS receivers  
‹ Battery backup  
‹ SEPIC converters  
The SC1417B is available in a MSOP-8 surface mount  
package.  
Typical Application Circuit  
D1  
L1  
10uH  
U1  
SMB5819  
3.3V@250mA  
R2  
1M  
R3  
1M  
R1  
6
7
3
1
5
2
8
4
1.0M  
R1  
R4  
IN  
LX  
FB  
VOUT = 1.22• (1+  
)
C1  
LBI  
C2  
47uF  
47uF  
EN  
LBO  
GND  
R4  
604k  
COMP  
SC1417B  
2 Cells  
(Alkaline)  
LBO OUT  
R6  
130k  
R5  
33k  
C3  
3.3nF  
Revision: August 1, 2006  
1
www.semtech.com  
1234567...11

中文翻译

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