Part # MAX4923-MAX4926 datasheet

Part Manufacturer: Maxim


Part Description: MAX4923-26 DS

Part Details:

19-0810; Rev 0; 4/07 Overvoltage Protectors with External pFET MAX4923­MAX4926 General Description Features The MAX4923­MAX4926 overvoltage protection o Overvoltage Protection Up to +28V (OVP) controllers protect low-voltage systems againsthigh-voltage faults of up to +28V with an appropriate o Preset 7.18V, 6.16V, 5.65V, and 4.46V Typical external pFET. When the input voltage exceeds the over- Overvoltage Trip Levels voltage lockout (OVLO) threshold, or falls below the o Preset 2.44V Typical Undervoltage Trip Level undervoltage lockout (UVLO) threshold, these devicesturn off the pFET to prevent damage to protected compo- o ±2.5% Accurate Overvoltage/Undervoltage nents and issue a flag to notify the processor of a fault Trip Levels condition. o Low 13µA (typ) Supply Current The typical overvoltage trip level is set to 7.18V(MAX4923), 6.16V (MAX4924), 5.65V (MAX4925), and o Drives External pFET 4.46V (MAX4926). The undervoltage trip level is set to o 20ms Adapter Debounce Time 2.44V (typ) for all devices. The input (IN) is ESD protected to ±15kV HBM when o Fault Flag Indicator bypassed to ground with a 1µF ceramic capacitor. All o 6-Pin (1.5mm x 1.0mm) µDFN Package devices are offered in a small, 6-pin (1.5mm x 1.0mm)µDFN package and are specified over the extended -40°C to +85°C temperature range. Typical Operating Circuit Applications Cell Phones Digital Still Cameras INPUT PDAs and Palmtop Devices +1.8V TO 28V OUTPUT P MP3 Players Pin Configuration 1 4 IN GATE 1F TOP VIEW N.C N.C GATE MAX4923­MAX4926 VIO 6 5 4

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MAX4923-MAX4926.pdf Datasheet