MIC2073-1YM Micrel Inc, MIC2073-1YM Datasheet

IC PWR DISTRIBUTION SW 2CH 8SOIC

MIC2073-1YM

Manufacturer Part Number
MIC2073-1YM
Description
IC PWR DISTRIBUTION SW 2CH 8SOIC
Manufacturer
Micrel Inc
Type
High Side Switchr
Datasheet

Specifications of MIC2073-1YM

Number Of Outputs
2
Rds (on)
170 mOhm
Internal Switch(s)
Yes
Current Limit
700mA
Voltage - Input
2.7 ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
576-3440-5
General Description
The MIC2073/2074 are high-side MOSFET switches
optimized for general-purpose power distribution requiring
circuit protection.
The MIC2073/2074 are internally current limited and have
thermal shutdown for protecting the device and load.
The MIC2074 offers “smart” shutdown that reduces current
consumption in fault mode. When a fault occurs due to
thermal shutdown, the output is latched off.
MIC2074s’ output will be reset, enabling the output, either
by removing the load or toggling the ENABLE pin.
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 or
thermal shutdown conditions. Transient faults are internally
filtered.
The MIC2073/2074 are available in an 8-pin SOIC.
All support documentation can be found on Micrel’s web
site at: www.micrel.com.
_________________________________________________________________________________________________
Typical Application
January 2009
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (
V
CONT.
VIN
Logic Controlle r
OVERCURRENT
OVERCURRENT
10k
10k
ON/OFF
ON/OFF
The
ENA
FLGA
FLGB
ENB
Features
• 115 mΩ typical R
• 210 mΩ maximum R
• 2.7 V to 5.5 V operating range
• 500 mA minimum continuous current per channel
• Short circuit protection with thermal shutdown
• Thermally isolated channels
• Fault status flag (FLGA/B) separate for each channel
• 3ms fault flag delay (T
• UVLO (Undervoltage Lockout)
• Reverse current flow blocking (no “body diode”)
• Circuit breaker mode (MIC2074)
• Logic-compatible inputs
• Soft-start circuit
• Low quiescent current
• Pin compatible with the MIC2026/2076
Applications
• USB peripherals
• General purpose power switching
• ACPI power distribution
• Notebook PCs
• PDAs
• PC card hot swap
408
MIC2073/74
Dual-Channel Power Distribution Switch
) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
OUTA
OUTB
GND
IN
2.7V to 5.5V
V
CC
MIC2073/2074
0.1µF
B
DS(ON)
Load
Load
B
DS(ON)
D
at 5.0 V
) eliminates false assertions
at 5.0 V
M9999-011209

Related parts for MIC2073-1YM

MIC2073-1YM Summary of contents

Page 1

... The MIC2073/2074 are high-side MOSFET switches optimized for general-purpose power distribution requiring circuit protection. The MIC2073/2074 are internally current limited and have thermal shutdown for protecting the device and load. The MIC2074 offers “smart” shutdown that reduces current consumption in fault mode. When a fault occurs due to thermal shutdown, the output is latched off. MIC2074s’ ...

Page 2

... Micrel, Inc. Ordering Information Part Number MIC2073-1YM MIC2073-2YM MIC2074-1YM MIC2074-2YM NOTE: 1. MIC2073/2074 are Temperature rated from –40°C to +85°C 2. MIC2073/2074 are all lead free Pin Configuration Pin Description Pin Number Pin Name 1 ENA 2 FLGA 3 FLGB 4 ENB 5 OUTB 6 GND OUTA January 2009 ...

Page 3

... V 0.8 V ENA ENB (switch on), OUT = open low-to-high transition high-to-low transition 5 MIC2073/2074 , MIC2073/2074 MIC2073-1/2074-1, V ≤ 0.8 V; ENx MIC2073-2/2074-2, V ≥ 2.4 V, (output off) ENx MIC2074, Thermal shutdown state V = 0V, enabled into short-circuit OUT B B Ramped load applied to output V rising falling mA 5 ...

Page 4

... V until FLG LOW IN OUT V = 3.3 V apply until FLG LOW IN OUT T increasing, each switch decreasing, each switch J ( increasing, both switches decreasing, both switches MIC2073/2074 Min Typ Max Units 20 µs 1 1.15 ms 0.5 4.9 35 µs 100 32 µs 100 140 °C 120 °C 160 ° ...

Page 5

... Micrel, Inc. Test Circuit Timing Diagrams V OUT OUT January 2009 Device Under OUT Test 90% 10% Output Rise and Fall Times 50 90% Active-Low Switch Delay Times (MIC2073-2/2074-2) Active-High Switch Delay Time (MIC2073-1/2074- OUT 90% 10% t OFF 10% MIC2073/2074 M9999-011209 ...

Page 6

... INPUT VOLTAGE (V) Fall Time vs. Temperature 100 -40 -20 0 TEMPERATURE (°C) Fall Time vs. Input Voltage 100 -40° 5.0 5.5 2.5 3.0 3.5 INPUT VOLTAGE (V) MIC2073/2074 100 +25°C 4.0 4.5 5.0 5 100 25°C 4.0 4.5 5.0 5.5 M9999-011209 ...

Page 7

... INPUT VOLTAGE (V) MIC2073-2 Supply Off-Current vs. Temperature 10.0 9.0 3.3V 8.0 5V 7.0 6.0 5.0 4 -40 - 100 TEMPERATURE (°C) 7 MIC2073-1 Supply Off Current vs. Temperature 0.80 0.75 0.70 0.65 0. 0.55 IN 0.50 0.45 0.40 0.35 0.30 0.25 0.20 -40 - 100 TEMPERATURE (°C) MIC2073-1 Supply Off Current vs ...

Page 8

... Micrel, Inc. Functional Characteristics January 2009 8 MIC2073/2074 M9999-011209 ...

Page 9

... Micrel, Inc. Functional Characteristics (continued) January 2009 9 MIC2073/2074 M9999-011209 ...

Page 10

... Micrel, Inc. Functional Characteristics (continue) January 2009 10 MIC2073/2074 M9999-011209 ...

Page 11

... USB device) is removed. The output can also be reset by toggling EN. Refer to Figure 1 for timing details. The MIC2073 will automatically reset its output when the die temperature cools down to 120°C. The MIC2073 output and FLG signal will continue to cycle on and off until the device is disabled or the fault is removed ...

Page 12

... Once this occurs, the device limits current to less than the short-circuit current limit specification. • Current-Limit Response - Ramped Load The MIC2073/2074 current-limit profile exhibits a small foldback effect of about 200mA. Once this current-limit threshold is exceeded the device switches into a constant current mode important to note that the device will supply current up to the current-limit threshold ...

Page 13

... Figure 2. MIC2073-2 Fault Timing Universal Serial Bus (USB) Power Distribution The MIC2073/2074 are ideally suited for USB (Universal Serial Bus) power distribution applications. The USB IN specification defines power distribution for USB host systems such as PCs and USB hubs. Hubs can either be self-powered or bus-powered (that is, powered from the bus) ...

Page 14

... Micrel, Inc. V BUS to "Hot" Receptacle GND Cable January 2009 MIC2073/2074 1 8 ENA OUTA 2 7 FLGA IN 4.7 µ FLGB GND 4 5 ENB OUTB USB Peripheral Figure 3. Hot-Plug Application Figure 4. Transient Filter 14 MIC2073/2074 USB Controller USB Function C BULK USB Function C BULK M9999-011209 ...

Page 15

... Micrel, Inc. January 2009 Figure 5. USB Two-Port Host Application Figure 6. USB Two-Port Bus-Powered Hub 15 MIC2073/2074 M9999-011209 ...

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 January 2009 8-Pin SOIC (M) Micrel for any damages resulting from such use or sale. © 2009 Micrel, Incorporated 16 MIC2073/2074 M9999-011209 ...

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