MIC2546-1BM TR Micrel Inc, MIC2546-1BM TR Datasheet

IC SW CURR LIMIT DUAL 16-SOP

MIC2546-1BM TR

Manufacturer Part Number
MIC2546-1BM TR
Description
IC SW CURR LIMIT DUAL 16-SOP
Manufacturer
Micrel Inc
Type
High Sider
Datasheet

Specifications of MIC2546-1BM TR

Input Type
Non-Inverting
Number Of Outputs
2
On-state Resistance
80 mOhm
Current - Peak Output
1.5A
Voltage - Supply
2.7 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
16-SOIC (3.9mm Width)
Input Voltage Range
2.7 to 5.5V
Mounting
Surface Mount
Operating Temperature (max)
85C
Operating Temperature (min)
-40C
Operating Temperature Classification
Industrial
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Current - Output / Channel
-
Lead Free Status / RoHS Status
Not Compliant, Contains lead / RoHS non-compliant
Other names
MIC2546-1BMTR
MIC2546-1BMTR
General Description
The MIC2546 and MIC2547 are integrated high-side dual
power switches optimized for low loss dc power switching
and other power management applications, including
Advanced Configuration and Power Interface (ACPI). The
MIC2546/47 is a cost-effective, highly integrated solution
that requires few external components to satisfy USB and
ACPI requirements.
Load current management features include a precision
resistor-programmable output current-limit and a soft-start
circuit which minimizes inrush current when the switch is
enabled. Thermal shutdown, along with current-limit,
protects theswitch and the attached device.
The MIC2546/47’s open-drain flag outputs are used to
indicate current-limiting or thermal shutdown to a local
controller. The MIC2547 has an additional internal latch
which turns the output off upon thermal shutdown
providing robust fault control. The enable signal is
compatible with both 3V and 5V logic, and is also used as
the thermal shutdown latch reset for the MIC2547.
The MIC2546 and MIC2547 are available in active-high
and active-low enable versions in 16-pin TSSOP and SOP
packages.
Data sheets and support documentation can be found on
Micrel’s web site at www.micrel.com.
___________________________________________________________________________________________________________
Typical Application
UL Recognized Component
January 2008
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (
Typical Advanced Configuration and Power Interface (ACPI) Application
Features
• 2.7V to 5.5V input
• Adjustable current-limit up to 1.5A
• Reverse current flow blocking (no “body diode”)
• 100μA typical on-state supply current per channel
• 2μA typical off-state supply current
• 120mΩ maximum on-resistance
• Open-drain fault flag
• Thermal shutdown
• Thermal shutdown output latch (MIC2547)
• 2ms (slow) turn-on and fast turnoff
• Available with active-high or active-low enable
Applications
• USB power distribution
• PCI Bus Power Switching
• Notebook PC
• ACPI power distribution
• PC card hot swap applications
• Inrush current-limiting
• Ideal for dual supply applications
408
Dual Programable Current Limit Switch
) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
MIC2546/2547
M9999-012508-A

Related parts for MIC2546-1BM TR

MIC2546-1BM TR Summary of contents

Page 1

... The enable signal is compatible with both 3V and 5V logic, and is also used as the thermal shutdown latch reset for the MIC2547. The MIC2546 and MIC2547 are available in active-high and active-low enable versions in 16-pin TSSOP and SOP packages. Data sheets and support documentation can be found on Micrel’ ...

Page 2

... Micrel, Inc. Ordering Information Part Number Standard Pb-Free MIC2546-1BM MIC2546-1YM MIC2546-1BTS MIC2546-1YTS MIC2546-2BM MIC2546-2YM MIC2546-2BTS MIC2546-2YTS MIC2547-1BM MIC2547-1YM MIC2547-1BTS MIC2547-1YTS MIC2547-2BM MIC2547-2YM MIC2547-2BTS MIC2547-2YTS Note: 1. Thermal Shutdown Latch. Pin Configuration 16-Pin SOP (M) 16-Pin TSSOP (TS) January 2008 (1) Enable Latch Junction Temp. Range ...

Page 3

... Ground. Both pins must be connected to GND. Current Limit Channel B: Sets current-limit threshold using an resistor, R connected to ground. 154Ω < R < 2.29kΩ. SET Switch B (Output): Pins 8 and 11 must be externally connected. Input B Enable B (Input) Fault Flag B (Output) Fault Flag B (Output) 3 MIC2546/2547 , SET M9999-012508-A ...

Page 4

... Note 3. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF. Note 4. Off is ″ 0.8V and on is ≥ 2.4V for the MIC2546-1 and MIC2547-1. Off is ≥ 2.4V and on is ″ 0.8V for the MIC2546-2 and MIC2547-2. The enable input has about 200mV of hysteresis ...

Page 5

... Micrel, Inc. Note 5. Guaranteed by design, but not production tested. Note 6. Current limit threshold is determined by: January 2008 230V = I LIMIT R , where ohms. SET SET 5 MIC2546/2547 M9999-012508-A ...

Page 6

... Micrel, Inc. Typical Characteristics January 2008 6 MIC2546/2547 M9999-012508-A ...

Page 7

... Micrel, Inc. January 2008 7 MIC2546/2547 M9999-012508-A ...

Page 8

... Micrel, Inc. Functional Characteristics January 2008 8 MIC2546/2547 M9999-012508-A ...

Page 9

... Micrel, Inc. Test Circuit Timing Diagrams January 2008 Functional Characteristics Test Circuit Figure 1a. MIC2546/47-1 Figure 1b. MIC2546/47-2 9 MIC2546/2547 M9999-012508-A ...

Page 10

... Micrel, Inc. Figure 2a. MIC2547-2 Timing: Output is reset by toggling EN January 2008 Figure 2b. MIC2546-2 Timing 10 MIC2546/2547 M9999-012508-A ...

Page 11

... Micrel, Inc. Block Diagram January 2008 11 MIC2546/2547 M9999-012508-A ...

Page 12

... Micrel, Inc. Functional Description The MIC2546 and MIC2547 are dual high-side N- channel switches available with active-high or active-low enable inputs. Fault conditions turn off or inhibit turn-on of the output transistor and activate the open-drain error flag transistor making it sink current to ground. Input and Output INX is the power supply connection to the logic circuitry and the drain of the output MOSFET ...

Page 13

... USB Power Distribution The MIC2546 is ideal for meeting USB power distribution requirements. Figure 3 depicts a USB Host application. RSET should be set to a value providing a current-limit >500mA. The accurate current-limit of the MIC2546 will reduce power supply current requirements ...

Page 14

... Micrel, Inc. January 2008 Figure 3. USB Host Application 14 MIC2546/2547 M9999-012508-A ...

Page 15

... 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 January 2008 16-Pin SOP (M) 16-Pin TSSOP (TS) indemnify Micrel for any damages resulting from such use or sale. © 2001 Micrel, Incorporated. 15 MIC2546/2547 M9999-012508-A ...

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