MAX6436UT+T

MAX6436 is a low power battery monitor with internal hysteresis. This device is offered with single low-battery output indicators, which can be used to indicate three battery conditions: battery is good (operate system in normal mode), battery is weak (operate system in low-power mode), or battery is empty (disable the system). This device is ideal for monitoring single lithium-ion (Li+) cells or multicell alkaline/NiCd/NiMH power supplies. When the power-supply voltage drops below the specified low threshold, the low-battery output asserts. When the voltage rises above the specified high threshold, the low battery output is deasserted following a 140ms minimum timeout period. Application includes battery-powered systems (single-cell Li+ or two/three-cell NiMH, NiCd, alkaline), cell phones/cordless phones, portable medical devices, electronic toys, pager, PDAs, MP3 players.

• Factory-trimmed low thresholds from 1.6V to 2.1V or 2.6V to 3.1V in 100mV increments
• User-adjustable low/high thresholds with 615mV internal reference
• 1µA typical low current
• 140ms minimum LBO timeout period
• Immune to short battery voltage transients
• Guaranteed valid LBO logic state to BATT = 1.0V
• Operating voltage range from 1.2 to 5.5V (TA = -40°C to +85°C)
• 1µA typical VDD supply current (VDD = 3.7V, no load, TA = +25°C)
• 100µs typical delay (BATT or VDD/HTHIN/LTHIN falling below threshold)
• 6 SOT23-6 package, operating temperature range from -40°C to +85°C

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