MIC2027-1YM Microchip

MIC2027/2077 Quad USB Power Distribution Switch General Description Features The MIC2027 and MIC2077 are quad high-side MOSFET 150m maximum on-resistance per channel switches optimized for general-purpose power distribution 2.7V to 5.5V operating range requiring circuit protection. The MIC2027/77 are internally 500mA minimum continuous current per channel current limited and have thermal shutdown that protects Short-circuit protection with thermal shutdown the device and load. Thermally isolated channels The MIC2077 offers smart thermal shutdown that Fault status flag with 3ms filter eliminates false reduces current consumption in fault modes. When a assertions thermal shutdown fault occurs, the output is latched off Undervoltage lockout until the faulty load is removed. Removing the load or Reverse current flow blocking (no body diode) toggling the enable input will reset the device output. Circuit breaker mode (MIC2077) reduces power Both devices employ soft-start circuitry that minimizes consumption inrush current in applications where highly capacitive loads Logic-compatible inputs are employed. Soft-start circuit A fault status output flag is asserted during overcurrent Low quiescent current and thermal shutdown conditions. Transient current limit faults are internally filtered. Pin compatible with MIC2524 and MIC2527 The MIC2027/77 are available in 16-pin narrow (150 mil) Applications and wide (300 mil) SOIC packages. USB peripherals Data sheets and support documentation can be found on Micrels web site at www.micrel.com. General purpose power switching ACPI power distribution Notebook PCs PDAs PC card hot swap Typical Application 4-Port Self-Powered Hub UL Recognized Component Micrel Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel +1 (408) 944-0800 fax + 1 (408) 474-1000 Micrel, Inc. MIC2027/2077 (1) Ordering Information Part Number Enable Temperature Range Package Standard Pb-Free MIC2027-1BWM MIC2027-1YWM Active High 40C to +85C 16-Pin Wide SOIC MIC2027-1BM MIC2027-1YM Active High 40C to +85C 16-Pin SOIC MIC2027-2BWM MIC2027-2YWM Active Low 40C to +85C 16-Pin Wide SOIC MIC2027-2BM MIC2027-2YM Active Low 40C to +85C 16-Pin SOIC MIC2077-1BWM MIC2077-1YWM Active High 40C to +85C 16-Pin Wide SOIC MIC2077-1BM MIC2077-1YM Active High 40C to +85C 16-Pin SOIC MIC2077-2BWM MIC2077-2YWM Active Low 40C to +85C 16-Pin Wide SOIC MIC2077-2BM MIC2077-2YM Active Low 40C to +85C 16-Pin SOIC Pin Configuration 16-Pin SOIC (M) Functional Pinout 16-Pin Wide SOIC (WM) M9999-091506 September 2006 2