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SI786CG PDF预览

SI786CG

更新时间： 2024-02-12 07:47:48
品牌 Logo 应用领域
威世 - VISHAY 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输出元件
页数 文件大小 规格书
14页 131K
描述
Dual-Output Power-Supply Controller

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中文翻译

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SI786CG 技术参数

生命周期：TransferredReach Compliance Code：unknown
风险等级：5.71Is Samacsys：N
其他特性：3.6V OUTPUT AVAILABLE模拟集成电路 - 其他类型：DUAL SWITCHING CONTROLLER
控制模式：CURRENT-MODE控制技术：PULSE WIDTH MODULATION
最大输入电压：30 V最小输入电压：5.5 V
标称输入电压：15 VJESD-30 代码：R-PDSO-G28
功能数量：1端子数量：28
最高工作温度：90 °C最低工作温度：-10 °C
标称输出电压：5 V封装主体材料：PLASTIC/EPOXY
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
认证状态：Not Qualified最大供电电流 (Isup)：1.6 mA
表面贴装：YES切换器配置：PUSH-PULL
最大切换频率：330 kHz技术：BCDMOS
温度等级：OTHER端子形式：GULL WING
端子位置：DUALBase Number Matches：1

SI786CG 数据手册

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Si786  
Vishay Siliconix  
Dual-Output Power-Supply Controller  
FEATURES  
D Fixed 5-V and 3.3-V Step-down Converters  
D Less than 500-mA Quiescent Current per Converter  
D 25-mA Shutdown Current  
D 5.5-V to 30-V Operating Range  
DESCRIPTION  
The Si786 Dual Controller for Portable Computer Power  
Conversion is pin and functionally compatible with the  
MAX786 dual-output power supply controller for notebook  
computers. The device is designed as a drop-in replacement  
for that circuit.  
A complete power conversion and management system can  
be implemented with the Si786 Dual Controller for Portable  
Computer Power Conversion, an inexpensive linear regulator,  
the Si9140 SMP Controller for High Performance Processor  
Power Supplies, five Si4410 n-channel TrenchFETR Power  
MOSFETs, one Si4435 p-channel TrenchFET Power  
MOSFET, and two Si9712 PC Card (PCMCIA) Interface  
Switches.  
The circuit is a system level integration of two step-down  
controllers, micropower 5-V and 3.3-V linear regulators, and  
two comparators. The controllers perform high efficiency  
conversion of the battery pack energy (typically 12 V) or the  
output of an ac to dc wall converter (typically 18-V to 24-V dc)  
to 5-V and 3.3-V system supply voltages. The micropower  
linear regulator can be used to keep power management and  
back-up circuitry alive during the shutdown of the step-down  
converters. The comparators can be biased at any voltage  
between 2.7 V and the input voltage, simplifying battery  
monitoring or providing sufficient voltage to enhance the gate  
of a low on-resistance n-channel FET used in switching power  
to different zones in the system.  
The Si9130 Pin-Programmable Dual Controller for Portable  
PCs is another integrated system level devices for portable PC  
power systems.  
The Si786 is available in both standard and lead (Pb)-free  
28-pin SSOP packages and specified to operate over the (0_C  
to 70_C), (−10_C to 90_C) and (−40_C to 85_C) temperature  
ranges. See Ordering Information for corresponding part  
numbers.  
FUNCTIONAL BLOCK DIAGRAM  
3.3 V  
mP  
5.5. V  
to  
30 V  
Power  
Memory  
Section  
5 V  
Peripherals  
Si786  
SHUTDOWN  
5-V ON/OFF  
3.3-V ON/OFF  
SYNC  
Low-Battery Warning  
Power-Good  
Document Number: 70189  
S-40807—Rev. J, 26-Apr-04  
www.vishay.com  
1
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中文翻译

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SI786CG 替代型号

型号 品牌 替代类型 描述 数据表
SI786LG VISHAY

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SI786DG-T1 VISHAY

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