MIC2010-1PCQS Micrel Inc, MIC2010-1PCQS Datasheet

IC USB PWR CTRLR DUAL 16-QSOP

MIC2010-1PCQS

Manufacturer Part Number
MIC2010-1PCQS
Description
IC USB PWR CTRLR DUAL 16-QSOP
Manufacturer
Micrel Inc
Datasheet

Specifications of MIC2010-1PCQS

Controller Type
USB Power Controller
Interface
USB
Voltage - Supply
4.5 V ~ 5.5 V
Current - Supply
1mA
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
16-QSOP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
General Description
The MIC2010 is a dual channel USB power switch designed
to support the power distribution requirements for USB
Wakeup from the ACPI S3 state. The MIC2010 will directly
switch its two outputs between a 5V main supply and a
5V auxiliary supply normally provided in ATX style power
supplies.
The MIC2010 will adjust its current-limit threshold according
to the ACPI state it is in. In the normal active ACPI S0 state
the current-limit is set at 500mA minimum per channel
satisfying the USB continuous output current specification.
In the S3 state the current-limit can be reduced to a value
determined by an external resistor to minimize the current
that is supplied by the auxiliary supply, thereby ensuring that
voltage regulation is maintained even during fault conditions.
The MIC2010 provides make-before-break switching to
ensure glitch-free transitions between the S3 and S0 states.
Each channel is also thermally isolated from the other so that
a fault in one channel does not effect the other. FAULT status
output signals are also provided indicating overcurrent and
thermal shutdown conditions.
The MIC2070 option latches the output off upon detecting an
overcurrent condition lasting for more than 5ms minimum.
The output can be reset by either toggling the EN inputs of the
MIC2070-1/-2 or by removing the load. Latching the output
off provides a circuit breaker mode of operation which
reduces power consumption during fault conditions.
Typical Application
UL Recognized Component
January 2005
MIC2010/2070
Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
82801AA or Equivalent
ATX Power Supply
5V STANDBY
5V MAIN
SLP S3#
SLP S5#
OC0
OC1
Overcurrent Port 1
S3# CONTROL
Figure 1. USB Wakeup From ACPI S3 System Diagram
Overcurrent Port 1
ON/OFF 1
ON/OFF 2
MIC2010-1P/-2P
MAIN
AUX
EN1
EN2
S3#
FAULT1
FAULT1
GND
RSET1
RSET2
OUT1
OUT2
1
Features
• Compliant to USB power distribution specifications
• Two completely independent switches
• Integrated switching matrix supports ACPI S0/S3 state
• Make-before-break switching ensures glitch-free
• No back-feed of auxiliary supply onto main supply
• Bi-level current-limit preserves auxiliary supply voltage
• Thermally isolated channels
• Thermal shutdown protection
• Fault status outputs with filter prevents false assertions
• Circuit breaker options with auto-reset (MIC2070)
• Undervoltage lockout
• UL File #179633
Applications
• Desktop PCs
• Notebook PCs
• Notebook docking stations
• LAN Servers
• PC motherboard
transitions without external FET circuits
transitions
during standby mode
regulation in standby mode
during hot-plug events
100µF
100µF
MIC2010/MIC2070
USB Power Controller
GND
GND
V
V
BUS
D+
D–
BUS
D+
D–
Downstream
Downstream
Port 1
Port 2
USB
USB
M9999-101104
Micrel

Related parts for MIC2010-1PCQS

MIC2010-1PCQS Summary of contents

Page 1

... MIC2010/2070 General Description The MIC2010 is a dual channel USB power switch designed to support the power distribution requirements for USB Wakeup from the ACPI S3 state. The MIC2010 will directly switch its two outputs between a 5V main supply and a 5V auxiliary supply normally provided in ATX style power supplies ...

Page 2

... MIC2010/2070 Ordering Information Part Number Standard Pb-Free MIC2010-1PCQS MIC2010-1PZQS MIC2010-2PCQS MIC2010-1PZQS MIC2070-1PCQS MIC2070-1PZQS MIC2070-2PCQS MIC2070-2PZQS Pin Configuration M9999-101104 Circuit Breaker Temperature Enable Function Active High Active Low ✓ Active High ✓ Active Low FAULT1 1 16 FAULT2 EN1 2 15 EN2 S3 OUT1 RSET1 ...

Page 3

... MIC2010/2070 Pin Description Pin Number Pin Name 1 FAULT1 2 EN1 3 S3# 4 RSET1 5 AUX RSET2 8 GND 9, 10 OUT2 11, 12 MAIN 13, 14 OUT1 15 EN2 16 FAULT2 January 2005 Pin Function Fault Status (Output): Channel 1, active-low; weak pull-up to AUX. FAULT1 is asserted LOW when channel thermal shutdown state or overcur- rent condition for more than 5ms ...

Page 4

... MIC2010/2070 Absolute Maximum Ratings Supply Voltage (V ) ........................................ –0. FAULT#, OUT1, OUT2 Output Pins ................. –0. FAULT1,FAULT2, Output Current .............................. 25mA (3) ESD Rating ................................................................ 2kV Electrical Characteristics V = 5V; AUX = 5V 125Ω, T MAIN SET Symbol Parameter V MAIN Supply Voltage MAIN (5) I MAIN Supply Current MAIN I MAIN Reverse Leakage Current ...

Page 5

... MIC2010/2070 Symbol Parameter V FAULT1, 2 Output High Voltage OH (MIC2010-1P, 2P), (MIC2070-1P, 2P) T MAIN to S3# Hold Time, Note MAIN to S3# Set-up Time, Note FAULT Delay Filter Response Time DLY (Overcurrent only), Note 8 t Overcurrent Response Time OC t MAIN Output Turn-On Time ON(MAIN) t MAIN Output Turn-Off Time ...

Page 6

... MIC2010/2070 OUT OUT V OUT I OUT FAULT# MAIN S3# 1.5V M9999-101104 50% t OFF t ON 90% Figure 2. MIC2010/70-1 50% t OFF t ON 90% Figure 3. MIC2010/70-2 Output shorted to ground I LIMIT DLY Figure 4. Overcurrent Response Timing t H Figure 5. MAIN to S3# Timing 6 10% 10 1.5V January 2005 Micrel ...

Page 7

... USB wakeup from the ACPI S3 state. It integrates two independent channels under control of input S3#. When S3# is asserted LOW (ACPI S3 state) the MIC2010/ 2070 will switch a 500mΩ MOSFET switch from the AUX input to each of its two outputs. In addition the current-limit threshold will be set to a value specified by a resistor connected to the RSET inputs ...

Page 8

... This helps to ensure that the power supply voltage regulation is preserved and also prevents possible damage to sensitive components DLY Thermal Shutdown Figure 6. MIC2010 System Timing Load Removed– Figure 7. MIC2070 System Timing— Output Resets When Load is Removed 8 Overcurrent Fault Reached ...

Page 9

... MIC2010/2070 Functional Characteristics AUX Start-up by UVLO V ramps from AUX MAIN MAIN EN = [ON] R LOAD C LOAD TIME (500µs/div) Main Start-up by UVLO & V ramp from MAIN AUX MAIN AUX S3 [ON 10Ω 3.20V LOAD C = 1µF LOAD TIME (500µs/div) Main Turn-On Response EN toggles from [OFF] to [ON] TIME (250µ ...

Page 10

... MIC2010/2070 AUX Turn-On Response EN toggles from [OFF] to [ON] TIME (100µs/div) Turn-On from S3# to AUX V S3# toggles from [HI] to [LOW] TIME (100µs/div) Main Inrush Current into C EN toggles from [OFF] to [ON 10µF, 100µF, 560µF LOAD C = 560µ 100µF ...

Page 11

... MIC2010/2070 AUX Ramped to Short by MOSFET AUX V = S3 [ON] MAIN RL toggles from >1kΩ to <0.5Ω OAD C = 1µF LOAD TIME (25ms/div) AUX Turn-On into Short EN toggles from [OFF] to [ON] TIME (2.5ms/div) AUX Inrush Current into Small C EN toggles from [OFF] to [ON] TIME (100µ ...

Page 12

... MIC2010/2070 M9999-101104 AUX-to-Main Cross Conduction =5V MAIN AUX S3# toggles from [LO] to [HI [ON 50Ω LOAD C = 1µF LOAD 3.96ms TIME (1ms/div) 12 Micrel January 2005 ...

Page 13

... MIC2010/2070 Package Information 0.157 (3.99) 0.150 (3.81) 0.009 (0.2286) REF 0.0098 (0.249) 0.0040 (0.102) SEATING 0.0688 (1.748) PLANE 0.0532 (1.351) MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA + 1 (408) 944-0800 TEL The information furnished by Micrel in this datasheet is believed to be accurate and reliable. However, no responsibility is assumed by Micrel for its use. ...

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