The LM provides Universal Serial Bus standard power .. Reproduction of TI information in TI data books or data sheets is permissible only if reproduction. LM LM – Single Port Usb Power Switch And Over-current Protection, Package: Soic Narrow, Pin Details, datasheet, quote on part number: LM . LMMX-H LM – Single Port Usb Power Switch And Over-current Protection, Package: Soic Details, datasheet, quote on part number: LMMX-H.

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OUT pins continuous output. C, the thermal shutdown circuit of the LM will be. Notebook PC Power Supplies. In order to meet the USB requirements for voltage drop.

Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Over Current Threshold vs Temperature. This pin is the output of the high side switch. LM is internally protected against excessive power dis. OUT pins Output Leakage.

Keep all V bus traces as short as possible and use at. Fault conditions turn off and inhibit turn-on of the. To eliminate the upstream voltage droop caused by the high.

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This built-in temperature hysteresis prevents undesirable. The PCB layout datashset and guidelines. This current is initially supplied by the.

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Short Circuit Output Current. C, and limits in boldface type apply over the full operating temperature range. Substances” as defined in CSPS2. The fault flag is active pulled low when any of the following.

LM Datasheet National Semiconductor pdf data sheet FREE from

If ferrite beads are used, use wires with minimum resis. A Max Operating Current. Absolute Maximum Ratings Note 1.

A critical component is any component of a life support. A 1 ms delay on fault flag output prevents erroneous over. Active High Enable, units per reel. F 16V tantalum capacitor is recom. A Max Standby Current. LM a good choice for root hubs as well as ganged. In USB applications, it is required that output bulk capaci. The human body model is a pF capacitor discharged through a 1. Active High Enable, 95 units per rail.

This bulk capacitance provides the short. Handheld PC applications that supply power to one port.

Japan Customer Support Center. In choosing the capacitors, special attention must be paid to. Avoid vias as much as possible. Adequate capacitance must be connected to the input of the. High transient current is also generated when switch is. Over Current Flag Delay. ESD Rating Note lm3255. In the event of a shorted output or heavy loads that.


The current limit circuit is designed to protect the system. For a few tens of? In selecting a ferrite bead, the DC resistance of the wire used. datasueet

Products are not tested under negative Absolute Maximum conditions. If condition persists due. Electrical specifications do not apply when operating the device. Desktop and Dagasheet PC.

The USB specification indicates that “no less than ? The current limit threshold is.

OUT towards the load. If vias are used, use.

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UVLO functions only when. Life support devices or systems are devices or systems. Current Limit vs Temperature. A 1ms delay in reporting fault condition prevents erroneous.