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MIC2026_10 Datasheet, PDF (1/16 Pages) Micrel Semiconductor – Dual-Channel Power Distribution Switch | |||
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MIC2026/2076
Dual-Channel Power Distribution Switch
General Description
Features
The MIC2026 and MIC2076 are high-side MOSFET
switches optimized for general-purpose power distribution
requiring circuit protection.
The MIC2026/76 are internally current limited and have
thermal shutdown that protects the device and load.
The MIC2076 offers âsmartâ 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.
⢠140m⦠maximum on-resistance per channel
⢠2.7V to 5.5V operating range
⢠500mA minimum continuous current per channel
⢠Shortcircuit protection with thermal shutdown
⢠Thermally isolated channels
⢠Fault status flag with 3ms filter eliminates false
assertions
⢠Undervoltage lockout
⢠Reverse current flow blocking (no âbody diodeâ)
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 faults are
internally filtered.
The MIC2026/76 are available in 8-pin DIP or 8-pin SOIC.
All support documentation can be found on Micrelâs web
site at www.micrel.com.
⢠Circuit breaker mode (MIC2076)
⢠Logic-compatible inputs
⢠Soft-start circuit
⢠Low quiescent current
⢠Pin compatible with MIC2526
⢠UL File # E179633
Applications
⢠USB peripherals
⢠General purpose power switching
⢠ACPI power distribution
⢠Notebook PCs
⢠PDAs
⢠PC card hot swap
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Typical Application
VCONT.
10k
10k
Logic Controller
VIN
ON/OFF
OVERCURRENT
OVERCURRENT
ON/OFF
VCC
2.7V to 5.5V
MIC2026-2
ENA OUTA
FLGAI
N
FLGB GND
ENB OUTB
Load
0.1µF
Load
UL Recognized Component
Micrel Inc. ⢠2180 Fortune Drive ⢠San Jose, CA 95131 ⢠USA ⢠tel +1 (408) 944-0800 ⢠fax + 1 (408) 474-1000 ⢠http://www.micrel.com
June 2010
M9999-060410-B
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