Part # MAX4959-MAX4960 datasheet

Part Manufacturer: Maxim


Part Description: MAX4959 60 DS

Part Details:

19-0874; Rev 0; 7/07 High-Voltage OVP with Battery Switchover MAX4959/MAX4960 General Description Features The MAX4959/MAX4960 overvoltage protection con- o Overvoltage Protection Up to +28V trollers protect low-voltage systems against high-volt-age faults of up to +28V. When the input voltage o ± 2.5% Accurate Externally Adjustable exceeds the overvoltage lockout (OVLO) threshold, OVLO/UVLO Thresholds these devices turn off an external pFET to prevent dam- o Battery Switchover pFET Control age to the protected components. The undervoltagelockout (UVLO) threshold holds the external pFET off o Protection Against Incorrect Power Adapter until the input voltage rises to the correct level. An addi- o Low (100µA Typ) Supply Current tional safety feature latches off the pFET when an incor-rect low-power adapter is plugged in. o 25ms Input Debounce Timer The MAX4959/MAX4960 control an external battery o 25ms Blanking Time switchover pFET (P2) (see Figures 4 and 6) that switches o 10-Pin (2mm x 2mm) µDFN and 10-Pin µMAX in the battery when the AC adapter is unplugged. The Packages undervoltage and overvoltage trip levels can be adjustedwith external resistors. The input is protected against ±15kV HBM ESD when Ordering Information bypassed with a 1µF ceramic capacitor to ground. Alldevices are available in a small 10-pin (2mm x 2mm) PIN- TOP PKG PART TEMP RANGE µDFN and 10-pin µMAX packages and are specified for PACKAGE MARK CODE operation over the extended -40°C to +85°C temperature MAX4959ELB+ -40°C to +85°C 10 DFN AAO L1022-1 range. MAX4959EUB+* -40°C to +85°C 10 MAX -- U10-1 Applications MAX4960ELB+ -40°C to +85°C 10 DFN AAP L1022-1 Notebooks MAX4960EUB+* -40°C to +85°C 10 MAX -- U10-1 +Denotes a lead-free package. Laptops

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MAX4959-MAX4960.pdf Datasheet