SG1845数据手册集成电路(IC)的PMIC-稳压器-DCDC开关式控制器规格书PDF

厂商型号 |
SG1845 |
参数属性 | SG1845 封装/外壳为10-CFlatPack;包装为托盘;类别为集成电路(IC)的PMIC-稳压器-DCDC开关式控制器;产品描述:CURRENT MODE PWMS, HIGH-RELIABIL |
功能描述 | 升压/降压 |
封装外壳 | 10-CFlatPack |
制造商 | Microchip Microchip Technology |
中文名称 | 微芯科技 微芯科技股份有限公司 |
数据手册 | |
更新时间 | 2025-8-8 18:00:00 |
人工找货 | SG1845价格和库存,欢迎联系客服免费人工找货 |
SG1845规格书详情
描述 Description
The SG1844/45 family of control ICs provides all the required features to implement off-line Fixed Frequency, Current-mode switching power supplies with a minimum number of external components. Current-mode architecture demonstrates improved line regulation, improved load regulation, pulse-by pulse current limiting and inherent protection of the power supply output switch. The Bandgap reference is trimmed to ±1% over temperature. Oscillator discharge current is trimmed to less than ±10%. The SG1844/45 has under-voltage lockout, current-limiting circuitry and start-up current of less than 1mA. The totem-pole output is optimized to drive the gate of a power MOSFET. The output is low in the off state to provide direct interface to an Nchannel device. Both operate up to a maximum duty cycle range of zero to <50% due to an internal toggle flip-flop which blanks the output off every other clock cycle. The SG1844/45 is specified for operation over the full military ambient temperature range of -55°C to 125°C. The SG3844/45 is designed for the commercial range of 0°C to 70°C.Microchip Ordering Part Standard Microcircuit Drawing (SMD) SG1845F-DESC Cross Reference 5962-8670404HASG1845F-DESC Cross Reference 5962-8670404HXSG1845J-DESC Cross Reference 5962-8670404CASG1845J-DESC Cross Reference 5962-8670404CXSG1845L-DESC Cross Reference 5962-86704042ASG1845L-DESC Cross Reference 5962-86704042XSG1845Y-DESC Cross Reference 5962-8670404PASG1845Y-DESC Cross Reference 5962-8670404PX
特性 Features
Optimized For Off-Line Control
Low Start-Up Current (Automatic Feed Forward Compensation
Trimmed Oscillator Discharge Current
Pulse-By-Pulse Current Limiting
Enhanced Load Response Characteristics -Undervoltage Lockout with 6V Hysteresis
Double-Pulse Suppression
High-Current Totem-Pole Output (1A Peak)
Internally Trimmed Band-gap Reference
500kHz Operation SG1845 - 8.4 Volts
Low Shoot-Through Current <75mA Over Temperature
简介
SG1845属于集成电路(IC)的PMIC-稳压器-DCDC开关式控制器。由制造生产的SG1845DC-DC 开关控制器PMIC(电源管理集成电路)DC 到 DC 开关式控制器是用于高效率电路的稳压 IC,其配置为生成高于(突升或步升)或低于(突降或步降)输入电源的输出电源电压。其他拓扑结构可能包括:降压-升压、反激、正激、Cuk、SEPIC、全桥、半桥和推挽式。这些器件不同于需要最小电压并“烧尽”多余电压的线性稳压器。
技术参数
更多- 产品编号:
SG1845F-DESC
- 制造商:
Microchip Technology
- 类别:
集成电路(IC) > PMIC - 稳压器 - DC DC 开关式控制器
- 系列:
Military, MIL-STD-883
- 包装:
托盘
- 输出类型:
晶体管驱动器
- 功能:
升压/降压
- 输出配置:
正,可提供隔离
- 拓扑:
反激
- 输出阶段:
1
- 电压 - 供电 (Vcc/Vdd):
7.6V ~ 30V
- 频率 - 开关:
100Hz ~ 500kHz
- 占空比(最大):
48%
- 同步整流器:
是
- 时钟同步:
无
- 工作温度:
-55°C ~ 125°C(TA)
- 安装类型:
表面贴装型
- 封装/外壳:
10-CFlatPack
- 供应商器件封装:
10-CFlatPack
- 描述:
CURRENT MODE PWMS, HIGH-RELIABIL
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
Microc |
25+ |
25000 |
原厂原包 深圳现货 主打品牌 假一赔百 可开票! |
询价 | |||
PHL |
25+ |
DIP-8 |
3000 |
全新原装、诚信经营、公司现货销售! |
询价 | ||
LINFINITY |
24+ |
CDIP8 |
3629 |
原装优势!房间现货!欢迎来电! |
询价 | ||
IR |
24+ |
SMD |
1680 |
IR专营品牌进口原装现货假一赔十 |
询价 | ||
原厂原装 |
24+ |
DIP-8 |
9630 |
我们只做原装正品现货!量大价优! |
询价 | ||
MICROSEMI/美高森美 |
25+ |
SOP8 |
880000 |
明嘉莱只做原装正品现货 |
询价 | ||
MICROSEMI/美高森美 |
23+ |
11200 |
原厂授权一级代理、全球订货优势渠道、可提供一站式BO |
询价 | |||
PHL |
25+23+ |
DIP-8 |
29045 |
绝对原装正品全新进口深圳现货 |
询价 | ||
最新 |
2000 |
原装正品现货 |
询价 | ||||
LINFINITY |
23+ |
CERDIP-8 |
7000 |
绝对全新原装!100%保质量特价!请放心订购! |
询价 |