MAX1558HETB+T

The MAX1558HETB+T is a dual, 3mm x 3mm, 1.2A/programmable-current USB switch with auto-reset in 10 pin TDFN package. The auto-reset latches the switch off, if it is shorted for more than 20ms and saves system power. The shorted output is then tested to determine when the short is removed to automatically restart the channel. Each channel delivers up to 1.2A and meets all IEC specifications for USB ports. Low quiescent supply current (45μA) and standby current (3μA) conserve battery power in portable applications. The MAX1558H safety features ensure that the USB port is protected. Built-in thermal-overload protection limits power dissipation and junction temperature. Accurate, programmable current-limiting circuitry protects the input supply against both overload and short circuit conditions. The MAX1558H also feature reverse-current protection circuitry to block current flow from the output to the input when the switches are off. The MAX1558H is enabled with an active-high signal.

• Supply voltage range is 2.7V to 5.5V
• Operating temperature range from -40°C to 85°C
• 55Mohm switch resistance at VIN = 5V
• 14% accurate current limit
• Built-in 20ms fault blanking
• Compliant to all USB specifications
• Independent output fault indicators
• 15KV ESD protection (with capacitor)
• UL recognized (file number E211935)

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Power Management

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