MIC2026 Ver la hoja de datos (PDF) - Micrel

Número de pieza

componentes Descripción

Fabricante

MIC2026

Dual-Channel Power Distribution Switch

Micrel 

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 “smart” 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.

• 140mΩ 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 “body diode”)

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 Micrel’s 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

___________________________________________________________________________________________________________

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

Share Link: