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MAX9928FABTT中文资料PDF规格书
MAX9928FABTT规格书详情
General Description
The MAX9928/MAX9929 low-cost, uni-/bidirectional, high-side, current-sense amplifiers are ideal for monitoring battery charge and discharge currents in notebooks, cell phones, and other portable equipment. These devices feature a wide -0.1V to +28V input common-mode voltage range, low 20µA supply current with VOS less than 0.4mV, and a gain accuracy better than 1.0. The input common-mode range is independent of the supply voltage, ensuring that the current-sense information remains accurate even when the measurement rail is shorted to ground.
The MAX9928F features a current output with a transconductance ratio of 5µA/mV. An external resistor converts the output current to a voltage, allowing adjustable gain so that the input sense voltage can be matched to the maximum ADC input swing. The MAX9929F has a voltage output and integrates a 10kΩ output resistor for a fixed voltage gain of 50V/V.
A digital SIGN output indicates direction of current flow, so the user can utilize the full ADC input range for measuring both charging and discharging currents.
Features
♦ Wide -0.1V to +28V Common-Mode Range, Independent of Supply Voltage
♦ 2.5V to 5.5V Operating Supply Voltage
♦ 20µA Quiescent Supply Current
♦ 0.4mV (max) Input Offset Voltage
♦ Gain Accuracy Better than 1 (max)
♦ SIGN Output Indicates Current Polarity
♦ Transconductance and Gain Versions Available
5µA/mV (MAX9928F)
50V/V (MAX9929F)
♦ Pin Compatible with the MAX4372 in UCSP
♦ Available in Ultra-Small, 3x2 UCSP (1mm x 1.5mm) and 8-Pin µMAX Packages
Applications
Monitoring Charge/Discharge Currents in Portable/Battery-Powered Systems
Notebook Computers
General-System/Board-Level Current Monitoring
Smart-Battery Packs/Chargers
Precision Current Sources
Smart Cell Phones
Super Capacitor Charge/Discharge
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
MAXIM |
22+23+ |
MSOP8 |
27331 |
绝对原装正品全新进口深圳现货 |
询价 | ||
MAXIM/美信 |
2022+ |
UMAX-8 |
6900 |
原厂原装,假一罚十 |
询价 | ||
MAXIM/美信 |
21+ |
UMAX-8 |
13880 |
公司只售原装,支持实单 |
询价 | ||
Maxim |
20+ |
MSOP |
65790 |
原装优势主营型号-可开原型号增税票 |
询价 | ||
MAXIM/美信 |
MSOP-8 |
265209 |
假一罚十原包原标签常备现货! |
询价 | |||
MAXIM-美信 |
24+25+/26+27+ |
MSOP-8 |
18800 |
一一有问必回一特殊渠道一有长期订货一备货HK仓库 |
询价 | ||
MAXIM/美信 |
23+ |
UMAX-8 |
30000 |
原装正品公司现货,假一赔十! |
询价 | ||
Maxim |
23+ |
8uMAX |
9000 |
原装正品,支持实单 |
询价 | ||
MAXIM/美信 |
23+ |
UMAX-8 |
5000 |
全新原装现货 |
询价 | ||
Maxim Integrated |
21+ |
8-uMAX |
53200 |
一级代理/放心采购 |
询价 |