MIC2077-1BWM Micrel Inc, MIC2077-1BWM Datasheet

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MIC2077-1BWM

Manufacturer Part Number
MIC2077-1BWM
Description
IC USB DISTRIB SW QUAD 16-SOIC
Manufacturer
Micrel Inc
Type
High Side Switchr
Datasheet

Specifications of MIC2077-1BWM

Number Of Outputs
4
Rds (on)
150 mOhm
Internal Switch(s)
Yes
Current Limit
900mA
Voltage - Input
2.7 ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
16-SOIC (0.300", 7.5mm Width)
Short Circuit Current Limit
900mA
Input Voltage Range
2.7 to 5.5V
Number Of Switches
Quad
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
16
Package Type
SOIC W
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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
September 2006
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
®
4-Port Self-Powered Hub
1
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
• Undervoltage lockout
• Reverse current flow blocking (no “body diode”)
• Circuit breaker mode (MIC2077) reduces power
• 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
assertions
consumption
Quad USB Power Distribution Switch
MIC2027/2077
M9999-091506

Related parts for MIC2077-1BWM

MIC2077-1BWM Summary of contents

Page 1

... 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 ...

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

Micrel, Inc. Pin Description Pin Number Pin Name 1 FLG 2 ENA 3 OUTA 4, 12 GND 5 IN(C/D) 6 OUTC 7 ENC 8 FLGC 9 FLGD 10 END 11 OUTD 13 IN(A/B) 14 OUTB 15 ENB 16 FLGB September ...

Page 4

... MIC20x7-1, V ENx ≥ 2.4V, (output off) MIC20x7-2, V ENx MIC2077 (per Latch Output) (during thermal shutdown state 10Ω 1µF, see “Timing Diagrams” 10Ω 1µF, see “Timing Diagrams” 10Ω 1µF, see “Timing Diagrams” 10Ω 1µF, see “Timing Diagrams” ...

Page 5

Micrel, Inc. Symbol Parameter Undervoltage Lockout Threshold Error Flag Output Resistance Error Flag Off Current Overtemperature Threshold Note 4 Notes: 1. Exceeding the absolute maximum rating may damage the device. 2. The device is not guaranteed to function outside its ...

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

... Upon determining a thermal shutdown condition, the MIC2077 will latch the output off and activate a pull-up current source. When the load is removed, this current source will pull the output up and reset the latch. ...

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

Micrel, Inc. Application Information Supply Filtering A 0.1µF to 1µF bypass capacitor positioned close to V and GND of the device is strongly recommended to control supply transients. Without a bypass capacitor, an output short may cause sufficient ringing on ...

Page 16

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

Page 17

Micrel, Inc. MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA TEL +1 (408) 944-0800 FAX +1 (408) 474-1000 WEB http:/www.micrel.com The information furnished by Micrel in this data sheet is believed to be accurate and reliable. However, no ...

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