MIC2027-2BWM

Manufacturer Part NumberMIC2027-2BWM
DescriptionIC USB DISTRIB SW QUAD 16-SOIC
ManufacturerMicrel Inc
TypeHigh Side Switch
MIC2027-2BWM datasheet
 


Specifications of MIC2027-2BWM

Number Of Outputs4Rds (on)150 mOhm
Internal Switch(s)YesCurrent Limit900mA
Voltage - Input2.7 ~ 5.5 VOperating Temperature-40°C ~ 85°C
Mounting TypeSurface MountPackage / Case16-SOIC (0.300", 7.5mm Width)
Short Circuit Current Limit900mAInput Voltage Range2.7 to 5.5V
Number Of SwitchesQuadOperating Temp Range-40C to 85C
Operating Temperature ClassificationIndustrialMountingSurface Mount
Pin Count16Package TypeSOIC W
Lead Free Status / RoHS StatusContains lead / RoHS non-compliant  
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General Description
The MIC2027 and MIC2077 are quad high-side MOSFET
switches optimized for general-purpose power distribution
requiring circuit protection. The MIC2027/77 are internally
current limited and have thermal shutdown that protects
the device and load.
The MIC2077 offers “smart” thermal shutdown that
reduces current consumption in fault modes. When a
thermal shutdown fault occurs, the output is latched off
until the faulty load is removed. Removing the load or
toggling the enable input will reset the device output.
Both devices employ soft-start circuitry that minimizes
inrush current in applications where highly capacitive loads
are employed.
A fault status output flag is asserted during overcurrent
and thermal shutdown conditions. Transient current limit
faults are internally filtered.
The MIC2027/77 are available in 16-pin narrow (150 mil)
and wide (300 mil) SOIC packages.
Data sheets and support documentation can be found on
Micrel’s web site at www.micrel.com.
Typical Application
®
UL Recognized Component
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
September 2006
MIC2027/2077
Quad USB Power Distribution Switch
Features
• 150mΩ maximum on-resistance per channel
• 2.7V to 5.5V operating range
• 500mA minimum continuous current per channel
• Short-circuit protection with thermal shutdown
• Thermally isolated channels
• Fault status flag with 3ms filter eliminates false
assertions
• Undervoltage lockout
• Reverse current flow blocking (no “body diode”)
• Circuit breaker mode (MIC2077) reduces power
consumption
• Logic-compatible inputs
• Soft-start circuit
• Low quiescent current
• Pin compatible with MIC2524 and MIC2527
Applications
• USB peripherals
• General purpose power switching
• ACPI power distribution
• Notebook PCs
• PDAs
• PC card hot swap
4-Port Self-Powered Hub
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M9999-091506

MIC2027-2BWM Summary of contents

  • Page 1

    ... A fault status output flag is asserted during overcurrent and thermal shutdown conditions. Transient current limit faults are internally filtered. The MIC2027/77 are available in 16-pin narrow (150 mil) and wide (300 mil) SOIC packages. Data sheets and support documentation can be found on Micrel’s web site at www.micrel.com. ...

  • Page 2

    ... Micrel, Inc. (1) Ordering Information Part Number Standard Pb-Free MIC2027-1BWM MIC2027-1YWM MIC2027-1BM MIC2027-1YM MIC2027-2BWM MIC2027-2YWM MIC2027-2BM MIC2027-2YM MIC2077-1BWM MIC2077-1YWM MIC2077-1BM MIC2077-1YM MIC2077-2BWM MIC2077-2YWM MIC2077-2BM MIC2077-2YM Pin Configuration 16-Pin SOIC (M) 16-Pin Wide SOIC (WM) September 2006 Enable Temperature Range Active High –40°C to +85°C Active High – ...

  • Page 3

    ... Input: Channel C and D switch and logic supply input. Switch C Output Switch C Enable (Input) Fault Flag C (Output) Fault Flag D (Output) Switch D Enable (Input) Switch D Output Supply Input: Channel A and B switch and logic supply input. Switch B Output Switch B Enable (Input) Fault Flag B (Output) 3 MIC2027/2077 to assert flag. D M9999-091506 ...

  • Page 4

    ... OUT OUT LIMIT (short applied to output 5V, apply until FLG low IN OUT V = 3.3V, apply until FLG low IN OUT 4 MIC2027/2077 (2) ) ..................................... +2.7V to +5. .......................... –40°C to +85° ..................... Internally Limited J )................................120°C/W JA ).........................................112°C ..........................................................130°C/W JA Min Typ Max 1.5 1.5 ...

  • Page 5

    ... 10mA 10mA 3. FLAG T increasing, each switch J T decreasing, each switch J T increasing, both switches J T decreasing, both switches J 5 MIC2027/2077 Min Typ Max Units 2.2 2.4 2.7 V 2.0 2.15 2.5 V Ω Ω µA 140 °C 120 °C 160 °C 150 ° ...

  • Page 6

    ... Micrel, Inc. Test Circuit Timing Diagrams September 2006 Output Rise and Fall Times Active-Low Switch Delay Times (MIC20x7-2) Active-High Switch Delay Times (MIC20x7-1) 6 MIC2027/2077 M9999-091506 ...

  • Page 7

    ... Micrel, Inc. Typical Characteristics September 2006 7 MIC2027/2077 M9999-091506 ...

  • Page 8

    ... Micrel, Inc. Typical Characteristics (cont.) September 2006 8 MIC2027/2077 M9999-091506 ...

  • Page 9

    ... Micrel, Inc. Functional Characteristics September 2006 9 MIC2027/2077 M9999-091506 ...

  • Page 10

    ... Micrel, Inc. Functional Characteristics (cont.) September 2006 10 MIC2027/2077 M9999-091506 ...

  • Page 11

    ... Micrel, Inc. Functional Characteristics (cont.) September 2006 11 MIC2027/2077 M9999-091506 ...

  • Page 12

    ... Micrel, Inc. Block Diagram September 2006 12 MIC2027/2077 M9999-091506 ...

  • Page 13

    ... Toggling EN will also reset the latch. The MIC2027 will automatically reset its output when the die temperature cools down to 120°C. The MIC2027 output and FLG signal will continue to cycle on and off until the device is disabled or the fault is removed ...

  • Page 14

    ... Micrel, Inc. Figure 1. MIC2077-2 Fault Timing: Output Reset by Removing Load OUT I LIMIT I LOAD I OUT V FLG September 2006 Short-Circuit Fault Load/Fault Removed Thermal Shutdown Reached 3ms typ. delay Figure 2. MIC2207-2 Fault Timing 14 MIC2027/2077 M9999-091506 ...

  • Page 15

    ... Printed Circuit Board Hot-Plug The MIC2027/77 are ideal inrush current-limiters for hot- plug applications. Due to the integrated charge pump, the MIC2027/77 present a high impedance when off and slowly becomes a low impedance as it turns on. This “soft-start” feature effectively isolates power supplies from highly capacitive loads by reducing inrush current. In cases of extremely large capacitive loads (> ...

  • Page 16

    ... Micrel, Inc. Package Information September 2006 16-Pin SOIC (M) 16 MIC2027/2077 M9999-091506 ...

  • Page 17

    ... Purchaser’s use or sale of Micrel Products for use in life support appliances, devices or systems is a Purchaser’s own risk and Purchaser agrees to fully September 2006 16-Pin Wide SOIC (WM) indemnify Micrel for any damages resulting from such use or sale. © 2001 Micrel, Incorporated. 17 MIC2027/2077 M9999-091506 ...