MIC2004-1.2YM5 TR Micrel Inc, MIC2004-1.2YM5 TR Datasheet

IC DISTRIBUTION SW 1.2A SOT23-5

MIC2004-1.2YM5 TR

Manufacturer Part Number
MIC2004-1.2YM5 TR
Description
IC DISTRIBUTION SW 1.2A SOT23-5
Manufacturer
Micrel Inc
Type
High Side Switchr
Datasheets

Specifications of MIC2004-1.2YM5 TR

Number Of Outputs
1
Rds (on)
100 mOhm
Internal Switch(s)
Yes
Current Limit
1.2A
Voltage - Input
2.5 ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
SOT-23-5, SC-74A, SOT-25
Short Circuit Current Limit
1.6A
Input Voltage Range
2.5 to 5.5V
Number Of Switches
Single
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
5
Package Type
SOT-23
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
576-2584-2
MIC2004-1.2YM5 TR
MIC2004-1.2YM5TR
MIC2004-1.2YM5TR
General Description
MIC2004 and MIC2014 are current limiting, high-side
power switches, designed for general purpose power
distribution and control in PCs, PDAs, printers and other
self-powered systems.
MIC2004 and MIC2014’s primary functions are current
limiting and power switching. They are thermally
protected and will shutdown should their internal
temperature reach unsafe levels, protecting both the
device and the load, under high current or fault
conditions. MIC2004/2014 feature a load discharge FET
which ensures any output capacitance is discharged
when the switch is turned off. This is particularly useful
in hot-swapping applications where ‘cold’ connections
are desired.
Both devices are fully self-contained, with the current
limit value being factory set to one of several convenient
levels.
MIC2014 offers a unique new feature: Kickstart
which allows momentary high current surges to pass
unrestricted without sacrificing overall system safety.
MIC2004 and MIC2014 are excellent choices for USB
and IEEE 1394 (FireWire) applications or for any system
where current limiting and power control are desired.
The MIC2004 and MIC2014 are offered in space saving
6 pin SOT-23 and 2mm x 2mm MLF packages.
Data sheets and support documentation can be found
on Micrel’s web site at www.micrel.com.
Typical Application
August 2005
_________________________________________________________________________________________________________
Kickstart is a trademark of Micrel, Inc
MLF and MicroLeadFrame are trademarks of Amkor Technology, Inc.
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
5V Supply
Controller
Figure 1. Typical Application Circuit
USB
VIN
ENABLE
MIC2004
MIC2014
,
VOUT
Features
• 70mΩ typical on-resistance
• 2.5V - 5.5V operating range
• Pre-set current limit values; 0.5A, 0.8A and 1.2A
• Load discharge FET
• Kickstart
• Thermal Protection
• Under voltage lock-out
• Low quiescent current
Applications
• USB / IEEE 1394 Power Distribution
• Desktop and Laptop PCs
• Set top boxes
• Game consoles
• PDAs
• Printers
• Docking stations
• Chargers
GND
Power Distribution Switch
V
D+/D-
V
D+/D-
Fixed Current Limit
BUS
BUS
MIC2004/2014
USB
USB
Port
Port
(408) 955-1690
M9999-080305

Related parts for MIC2004-1.2YM5 TR

MIC2004-1.2YM5 TR Summary of contents

Page 1

... MIC2004 and MIC2014 are excellent choices for USB and IEEE 1394 (FireWire) applications or for any system where current limiting and power control are desired. The MIC2004 and MIC2014 are offered in space saving 6 pin SOT-23 and 2mm x 2mm MLF packages. Data sheets and support documentation can be found on Micrel’ ...

Page 2

... Dynamic Load Management Adj = Adjustable current limit Ordering Information (1) Part Number Marking MIC2004-0.5YM5 FE05 MIC2004-0.8YM5 FE08 MIC2004-1.2YM5 FE12 (2) MIC2004-0.5YML E05 (2) MIC2004-0.8YML E08 (2) MIC2004-1.2YML E12 MIC2014-0.5YM5 FM05 MIC2014-0.8YM5 FM08 MIC2014-1.2YM5 FM12 (2) MIC2014-0.5YML M05 (2) MIC2014-0.8YML M09 (2) MIC2014-1.2YML M12 Note: 1. Under-bar symbol ( _ ) may not be to scale 2 ...

Page 3

... Output enable pin. A logic HIGH activates the output switch, applying power to the load attached internal connection. An electrical signal to this pin will have no effect on -- device operation internal connection. An electrical signal to this pin will have no effect on device operation. Output Switch output. The load being driven by MIC2004/2014 is connected to this pin. 3 MIC2004/MIC2014 ...

Page 4

... OUT 0.8V OUT 0.8V OUT IN MIC2014 2. rising IN V falling IN V (max (min 5. increasing J T decreasing J 4 MIC2004/MIC2014 ( 230°C/W 90°C/W (5) .................................. 45°C/W JC Min Typ Max 2.5 5 330 100 12 70 100 125 70 200 126 0.5 0.7 0.9 0.8 1.1 1.5 1.2 1.6 2 ...

Page 5

... ≤ 10pF, SLEW 90% EN OUT Condition Min V and GND OUT All other pins All pins ± 200 Machine Model 5 MIC2004/MIC2014 Typ Max Units 1000 1500 µ 128 192 ms 77 128 192 ms µ s 1000 1500 µ s 700 Typ Max Units ± ...

Page 6

Timing Diagrams ENABLE August 2005 50% t ON_DLY VOUT 10% Switching Delay Times t RISE 90% 90% 10% Rise and Fall Times t RISE 90% 10% Output Rise Time 6 50% t OFF_DLY 90% t FALL 10% VOUT M9999-080305 (408) ...

Page 7

Typical Characteristics Supply Current Output Enabled 100 25°C -40°C 80 85° ( vs. Temperature LIMIT (MIC20xx-1.2) 1. 2.5V 1. 1.50 1.45 ...

Page 8

Functional Characteristics Current Limit Response Thermal Shutdown ENABLE (2.5V/div) V OUT (1V/div) I OUT (250mA/div) 0 200 250 50 100 150 Time (ms) Kickstart Response No Load to Short Circuit ENABLE (1V/div) V OUT (1V/div) I OUT (0.5A/div ...

Page 9

UVLO Increasing ENABLE (2.5V/div) V OUT (1V/div (1/div) Enable tied Time (µs) Turn-On/Turn-Off ENABLE (2.5V/div) V OUT (1V/div) I OUT (200mA/div Time (ms) August ...

Page 10

... Functional Diagram ENABLE August 2005 Figure 2 MIC2004/2014 Block Diagram 10 VIN VOUT GND M9999-080305 (408) 955-1690 ...

Page 11

... MOSFET’s body diode. While this effect can be used to advantage when large bypass capacitors are placed on MIC2004/2014’s’s output, it can not be relied upon to fully or reliably discharge the load capacitance, because discharging depends upon the characteristics of the circuitry at VIN ...

Page 12

... If resumed operation results in reheating of the die, another shutdown MIC2004/2014 will continue cycling between ON and OFF states until the offending load has been removed. Depending on PCB layout, package type, ambient temperature, etc., hundreds of milliseconds may elapse from the incidence of a fault to the output MOSFET being shut off ...

Page 13

... I IN OUT OUT reduce the drain of fault current on the system’s power supply and to limit internal heating of MIC2004/2014. When measuring important to bear this voltage OUT dependence in mind, otherwise the measurement data may appear to indicate a problem when none really exists. This voltage dependence is illustrated in Figures 4 and 5 ...

Page 14

... I OUT Supply Filtering A 0.1µF to 1µF bypass capacitor positioned close to the V and GND pins of MIC2004/2014 is both good design IN practice MIC2004/2014. This will control supply transients and ringing. Without a bypass capacitor, large current surges or an output short may cause sufficient ringing on V (from supply lead inductance) to cause erratic operation of MIC2004/2014’ ...

Page 15

... T = ambient temperature the thermal resistance of the package θ (J-A) In normal operation MIC2004/2014’s Ron is low enough 2 that no significant I R heating occurs. Device heating is most often caused by a short circuit, or very heavy load, when a significant portion of the input supply voltage appears across MIC2004/2014’s power MOSFET. ...

Page 16

... A 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 indemnify Micrel for any damages resulting from such use or sale. 5-Pin SOT-23 (M5) 6 Pin 2mmX2mm MLF (ML) 16 © 2004 Micrel, Incorporated. MIC2004/MIC2014 M999 9-080305 (408) 95 5-1690 ...

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