MIC2777-29BM5TR Micrel Semiconductor, MIC2777-29BM5TR Datasheet

MIC2777-29BM5TR

Manufacturer Part Number

MIC2777-29BM5TR

Description

Manufacturer

Micrel Semiconductor

Datasheet

1.MIC2777-29BM5TR.pdf (8 pages)

Specifications of MIC2777-29BM5TR

Date_code

03+

Packing_info

SOT-153

Current page: 1 of 8
Download datasheet (165Kb)

General Description

The MIC2777 is a dual power supply supervisor that provides

under-voltage monitoring, manual reset capability, and power-

on reset generation in a compact 5-pin SOT package. Fea-

tures include two under-voltage detectors, one ﬁxed and one

adjustable, and both active-high and active-low reset outputs.

One under-voltage detector compares V

threshold. Ten factory-programmed thresholds are available.

The other under-voltage detector is user-adjustable.

The reset outputs are asserted for no less than 140ms at

power-on and any time V

the corresponding reference voltage. They remain asserted

for the timeout period after the input voltage and V

sequently rise back above the threshold boundaries. A reset

can be generated at any time by pulling down on the adjust-

able input. Hysteresis is included to prevent chattering due

to noise. Typical supply current is a low 3.5µA.

Typical Application

IttyBitty™ is a trademark of Micrel, Inc.

November 2005

Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

or the input voltage drops below

Ordering Information

Standard

MIC2777-XXBM5 UNXX

CORE

I/O

1.8V

1.0V

Manual

Reset

against a ﬁxed

Marking Pb-Free

Typical Application

Part Number

VDD

sub-

MIC2777

GND

MIC2777-XXYM5

/RST

RST

Features

• Monitors two independent power supplies for under-volt-

• One ﬁxed and one user adjustable input

• 1.5% theshold accuracy

• Choice of factory-programmed thresholds

• User-adjustable input can monitor supplies as low as

• Generates 140ms (minimum) power-on RESET pulse

• Manual reset capability

• Both active-high and active-low RESET outputs

• Input may be pulled above V

• /RST output valid down to 1.2V

• Ultra-low supply current, 3.5µA typical

• Rejects brief input transients

• IttyBitty™ 5-pin SOT-23 package

Applications

• Monitoring processor, ASIC, or FPGA core and I/O volt-

• Computer systems

• PDAs, hand-held PCs

• Embedded controllers

• Telecommunications systems

• Power supplies

• Wireless / Cellular systems

• Networking hardware

Dual Micro-Power Low Voltage Supervisor

age conditions

0.3V

ages

MICROPROCESSOR

/RESET

CORE

I/O

Marking

UNXX

GND

OTHER

LOGIC

MIC2777

Junction Tem. Range

–40ºC to +85ºC

(abs. max.)

SOT-23-5

Package

MIC2777

Related parts for MIC2777-29BM5TR

Related keywords

MIC2777-29BM5TR datasheet
MIC2777-29BM5TR data sheet
MIC2777-29BM5TR pdf datasheet
MIC2777-29BM5TR component
MIC2777-29BM5TR part
MIC2777-29BM5TR distributor
MIC2777-29BM5TR RoHS
MIC2777-29BM5TR datasheet download