Maxim- ±15kV ESD-Protected USB Transceivers

October 16, 2003 - Maxim Integrated Products introduces the MAX3453E-MAX3456E ±15kV ESD-protected USB transceivers, which provide low-voltage ASIC/CPUs with a USB-compliant physical layer interface. The USB D+ and D- data lines are protected to ±15kV per the Human Body Model to enhance protection against ESD strikes along the cable and eliminate external protection circuitry. These transceivers are ideal for handheld devices such as cellular phones and PDAs.

Packaged in a space-saving 16-pin TQFN and 14-pin TSSOP, the MAX3456E is a pin-for-pin compatible upgrade to the MIC2550A. Available in the same TQFN and TSSOP packages, the MAX3453E-MAX3455E provide additional features utilizing the unused pins of the MAX3456E. The MAX3453E/MAX3454E include a 1.5k pullup resistor and enumerate input, enabling software control of USB enumeration and eliminating the need for an external resistor. The MAX3453E/MAX3455E detect the availability of V_BUS and provide a logic-level output to the ASIC/CPU. The MAX3454E-MAX3456E are compliant to the USB specification revisions 1.1 and 2.0, and operate at both low speed (1.5Mbps) and full speed (12Mbps). The MAX3453E is specified only for full-speed operation.

The MAX3454E/MAX3456E are powered in three ways: V_BUS from the USB host, directly from a Li+ ion battery, or from a 3.3V supply. The MAX3453E/MAX3455E require a 4V to 5.5V supply provided by the USB host. All devices feature a low-power suspend mode and work with ASICs that operate down to 1.65V.

The MAX3453E-MAX3456E are specified over the extended temperature range (-40°C to +85°C). Prices start at $0.73 (1000-up, FOB USA).

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