MAX9610 高精度電流檢測放大器、1µA、µDFN/SC70封裝、用于鋰離子電池
MAX9610 概述
The MAX9610 high-side current-sense amplifier offe
rs precision
accuracy specif
ications of V
OS less than 500µV (max) and g
ain err
or less than 0.5% (max). This device features an ultra-low 1µA quiescent supply current. The MAX9610 fits in a
tiny, 1mm x 1.5mm µDFN package or a 5-
pin SC70 package, making this part ideal for applications in no
tebook computers, cell phones, cameras, PDAs, and all lithium ion battery-operated portable devices where accuracy, low quiescent current, and small size are critical.
The MAX9610 features an input voltage range (common mode) from 1.6V to 5.5V. This input range is excellent for monitoring the current of a single-cell, lithium-ion battery (Li+), which at full charge is 4.2V, typically 3.6V in normal use, and less than 2.9V when re
ady to be recharged. These current-sense amplifiers have a voltage output and are offered in three gain versions: 25V/V (MAX9610T), 50V/V (MAX9610F), and 100V/V (MAX9610H).
The three gain versions offer flexibility in the choice of the external current-sense resistor. The very low 500µV (max) input offset voltage allows small 25mV to 50mV full-scale V
SENSE voltage for very low voltage drop at full-load current measurement.
The MAX9610 is offered in tiny 6-pin µDFN, (1mm x 1.5mm x 0.8mm footprint) and 5-pin SC70 packages, specified for operation over the -40°C to +85°C temperature range.
For a very
similar 1.6V to 28V input voltage device in a 4-bump UCSP™ package (1mm x 1mm x 0.6mm), refer to the MAX9938 data sheet.
MAX9610 關(guān)鍵特性
Ultra-Low Supply Current of 1µA (max)
Low 500µV (max) Input Offset Voltage
Low < 0.5% (max) Gain Error
Input Common Mode: +1.6V to +5.5V
Voltage Output
Three Gain Versions Available
- 25V/V (MAX9610T)
- 50V/V (MAX9610F)
- 100V/V (MAX9610H)
Tiny µDFN (1mm x 1.5mm x 0.8mm) and SC70 Packages
MAX9610 應(yīng)用
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3.3V和5V電源管理系統(tǒng)
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照相機(jī)
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蜂窩電話
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PDA
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便攜式Li+電池供電系統(tǒng)
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USB端口
MAX9610應(yīng)用電路 |
