MAX917

SOT23封装、1.8V、纳安级功耗、超摆幅比较器,带或不带电压基准

可理想用于便携设备中的2节电池监控


点击查看特定型号的库存状况。

说明

The MAX917–MAX920 nanopower comparators in space-saving SOT23 packages feature Beyond-the-Rails™ inputs and are guaranteed to operate down to +1.8V. The MAX917/MAX918 feature an on-board 1.245V ±1.5% reference and draw an ultra-low supply current of only 750nA, while the MAX919/MAX920 (without reference) require just 380nA of supply current. These features make the MAX917–MAX920 family of comparators ideal for all 2-cell battery applications, including monitoring/management.

The unique design of the output stage limits supply-current surges while switching, virtually eliminating the supply glitches typical of many other comparators. This design also minimizes overall power consumption under dynamic conditions. The MAX917/MAX919 have a push-pull output stage that sinks and sources current. Large internal output drivers allow rail-to-rail output swing with loads up to 8mA. The MAX918/MAX920 have an open-drain output stage that makes them suitable for mixed-voltage system design.
MAX917、MAX918、MAX919、MAX920:典型工作电路 MAX917、MAX918、MAX919、MAX920:典型工作电路 放大+

关键特性

  • Ultra-Low Supply Current
    • 380nA per Comparator (MAX919/MAX920)
    • 750nA per Comparator with Reference (MAX917/MAX918)
  • Guaranteed to Operate Down to +1.8V
  • Internal 1.245V ±1.5% Reference (MAX917/MAX918)
  • Input Voltage Range Extends 200mV Beyond-the-Rails
  • CMOS Push-Pull Output with ±8mA Drive Capability (MAX917/MAX919)
  • Open-Drain Output Versions Available (MAX918/MAX920)
  • Crowbar-Current-Free Switching
  • Internal Hysteresis for Clean Switching
  • No Phase Reversal for Overdriven Inputs
  • Space-Saving SOT23 Package

应用

  • 2节电池监视/管理
  • 医疗仪器
  • 移动通信
  • 笔记本电脑与PDA
  • 地或电源线检测
  • 遥感勘测与远端系统
  • 门限检测器/鉴别器
  • 超低功耗系统

请查看具体的参数规格 Comparators (97)


Part NumberComparatorstPD
(ns)
Input RangeVSUPPLY (Total)
(V)
VSUPPLY (Total)
(V)
ICC per Comp.
(µA)
VOS
(mV)
VOS
(mV)
Logic OutOper. Temp.
(°C)
Package/PinsBudgetary
Price
(typ)(min)(max)(max)(typ)(max)(See Notes)
MAX919 122000
Rail to Rail
to Neg. Rail
1.85.50.815Push-Pull-40 to +85
SOIC (N)/8
SOT23/5
$0.69 @1k
MAX920 Open Drain
SOIC (N)/8
SOT23/5

Pricing Notes:
价格仅供参考,用于同类产品的比较。所提供报价为美元,需要依汇率折合成人民币。该价格将因当地关税、税率和汇率而异。有关特定订购量和指定版本的报价和供货问题,请参考:价格与供货网站或与指定代理商联系。

请查看具体的参数规格 Comparators + Reference (48)


Part NumberComparatorsThresh.
(V)
Internal Reference Accuracy
(%)
tPD
(µs)
VSUPPLY
(V)
VSUPPLY
(V)
ICC
(µA)
Prog. Hyst.VOS
(mV)
VOS
(mV)
Logic OutOper. Temp.
(°C)
Package/PinsBudgetary
Price
(typ)(min)(max)(max)(typ)(max)(See Notes)
MAX917 11.2451.5221.85.51.3No110TTL/CMOS-40 to +85
SOIC (N)/8
SOT23/5
$1.00 @1k
MAX918 Open Drain
SOIC (N)/8
SOT23/5
产品可靠性报告: MAX917.pdf 
型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C   Material Composition  

备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

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