
The MIC2755 is composed of multiple comparators, a reset pulse generator, and logic. It is designed for monitoring the battery supply of portable digital systems, including PDAs and pagers.
The MIC2755 detects three different battery states: battery OK, low battery, and dead battery. The reset (/RST) output is asserted for at least 700ms when a fresh battery is inserted. The nonmaskable interrupt output (/NMI) is asserted when the battery voltage is below the NTH threshold, indicating that high-power system operations should not occur. If and when battery voltage falls below the power-off threshold (PTH), the reset output is asserted and latched, inhibiting system operation until the battery is replaced or recharged.
All three voltage thresholds are set using external resistors. A manual reset function can be implemented by connecting a switch directly to the power on reset/manual reset [RTH(/MR)] input. Internal circuitry detects switch activation and generates a minimum 175ms debounced reset signal. The MIC2755's power supply input is separate from the detector inputs to allow it to be powered from a down-stream voltage, such as the output of a boost converter.
Inputs and outputs can be pulled above VDD (up to 7V absolute maximum) without adverse effects or excessive current draw.
Supply current is typically a low 2µA. Hysteresis is included on all voltage detectors to prevent chattering due to noise. The MIC2755 is available in the tiny 8-pin micro-small-outline package (MSOP).
Optimized for PDAs, pagers and other hand-held devices.
Detects multiple battery states: Battery OK, Low battery, Dead battery.
Adjustable voltage thresholds
High accuracy ±2% voltage thresholds
Reset generation at power-on (700ms min.)
Debounced manual reset function
Internal logic prevents chatter if battery voltage fluctuates
Extremely low 2μA typical supply current
I/Os can be pulled above VDD (7V absolute maximum)
Immune to brief power supply transients
Low cost
8-pin MSOP
MIC2755 封裝圖
MIC2755 封裝圖
型號 | 制造商 | 描述 | 購買 |
---|---|---|---|
MIC2755YMM | Linear | IC CONV I.MX6 48LQFP | 立即購買 |
TMD2755可提供完整的集成式三合一傳感器解決方案,從而簡化了手機制造商的使用,降低對電路板空間需求,同時實現(xiàn)了領(lǐng)先的輕薄系統(tǒng)設(shè)計。TMD2755將低功耗VCSEL發(fā)射器(包括經(jīng)出廠校正的激光驅(qū)動器)、IR光電探測器和環(huán)境光傳...
Other Parts Discussed in Post: MSP430G2553, MSP430G2755作者:Terry Han 摘要 TI 的MSP430支持在主程序中加載Bootloader的方式進行在線升級操作,通過在線升級功能,客戶可以通過外部處理器隨時更新MSP430內(nèi)部的程序及Bug 的遠程修復(fù)。同時TI也提...
Other Parts Discussed in Post: MSP430G2553, MSP430G2755???????? TI 的MSP430支持在主程序中加載Bootloader的方式進行在線升級操作,通過在線升級功能,客戶可以通過外部處理器隨時更新MSP430內(nèi)部的程序及Bug 的遠程修復(fù)。同時TI也提供了基...
? 在很多應(yīng)用場合,要用到多MIC設(shè)計,比如AI語音識別,就要用到多個硅麥的設(shè)計,以提高語音識別的精準度,本人曾做過兩個這樣的項目,下面分享下設(shè)計心得,看到這篇文章的朋友如果覺得有所幫助的話,記得
mic認證與telec認證介紹 無線產(chǎn)品在各國都有著嚴格的管控法規(guī)標(biāo)準,在中國有srrc認證,美國有fcc-id,韓國的kcc認證等等,而在日本針對無線產(chǎn)品的認證是telec認證,有人又稱之為mic
盛群推出高階32-bit Flash單片機HT32F1755/1765/2755系列,以ARM? Cortex?-M3為核心,具大容量內(nèi)存及更豐富的外圍接口
歐司朗光電半導(dǎo)體成功地將暖白光 LED 光源的發(fā)光效率提高到 142 lm/W,創(chuàng)下了新的實驗室記錄。在 2755 K 的相關(guān)色溫 (CCT) 下,LED 的顯色指數(shù) (CRI) 高達 81
*For VIN > 5V, use IRFZ44**Improves transient response to load changes Figure 1. Simple 10A, 5V to
MCP6546R | MC10EL16 | MCP795W10 | MCP79410 |
MCP6S22 | MC74LCX138 | MCP6G01R | MOCD217M |
MCP37210-200 | MCP9502 | MMBFJ309L | MCP9803 |
MPSA29 | MSP430F2132 | MCP6547 | MOC3081M |
MMBF4391L | MIC2176 | MJE15029 | MCP6V11 |