Datasheet > MIC2774L-26BM5TR

MIC2774L-26BM5TR

更新时间： 2024-11-08 08:28:11

品牌	Logo	应用领域
美国微芯 - MICROCHIP		光电二极管
页数	文件大小	规格书
8页	730K
描述
Power Supply Support Circuit, Adjustable, 2 Channel, PDSO5, SOT-23, 5 PIN

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MIC2774L-26BM5TR 数据手册

MIC2774

Dual Micro-Power Low Voltage Supervisor

General Description

Features

The MIC2774 is a dual power supply supervisor that pro-

vides under-voltage monitoring, manual reset capability, and

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

Features include two under-voltage detectors, one ﬁxed and

one adjustable, and a choice of reset outputs. One under-

• Monitors two independent power supplies for under-volt-

age conditions

• One ﬁxed and one user adjustable input

• Choice of factory-programmed thresholds

• Adjustable input can monitor supplies as low as 0.3V

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

• Manual reset input

voltagedetectorcomparesV againstaﬁxedthreshold.Ten

factory-programmed thresholds are available. The second,

user-adjustableinputiscomparedagainsta300mVreference.

This low reference voltage allows monitoring voltages lower

than those supported by previous supervisor ICs.

• Choice of active-high, active-low, or open-drain active-

low reset outputs

• Inputs may be pulled above V (7V abs. max.)

• Open-drain output can be pulled above V (7V abs

The reset outputs are asserted at power-on and any time

either voltage drops below the programmed threshold volt-

ages and remains asserted for 140ms (min.) after they

subsequently rise back above the threshold boundaries.

Manual reset functionality can be provided by a switch con-

nected between ground and the /MR input. A wide choice of

voltage thresholds provides for a variety of supply voltages

and tolerances. Hysteresis is included to prevent chattering

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

max.)

• /RST output valid down to 1.2V

• Ultra-low supply current, 3.5µA typical

• Rejects brief input transients

• IttyBitty™ 5-lead SOT-23 package

• Pin compatible upgrade for MAX6306/09/12

Applications

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

ages

• PDAs, hand-held PCs

• Embedded controllers

• Telecommunications systems

• Power supplies

• Wireless / Cellular systems

• Networking hardware

Ordering Information

Part Number

Reset Output

Temperature

Range

Package

Standard

Marking Pb-Free

Marking

MIC2774N-XXBM5 UGXX⁽¹⁾MIC2774N-XXYM5

MIC2774H-XXBM5 UHXX⁽¹⁾MIC2774H-XXYM5

UGXX⁽¹⁾

Open-Drain. Active-Low (/RST)

-40°C to +85°C SOT-23-5

UHXX⁽¹⁾Active-High. Complementary (RST) -40°C to +85°C SOT-23-5

UIXX⁽¹⁾

Active-Low. Complementary (/RST) -40°C to +85°C SOT-23-5

MIC2774L-XXBM5 UIXX⁽¹⁾

MIC2774L-XXYM5

Notes:

XX = Voltage options, see table on page 2. Underscore indicates a Pb-Free part.

Typical Application

MICROPROCESSOR

V_CORE1.0V

V_I/O2.5V

VCORE

VI/O

MIC2774L-23

/RST

VDD

/RESET

GND

Power_Good

/MR

GND

Manual

Reset

IttyBitty™ is a trademark of Micrel, Inc.

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

M9999-102605

October 2005

12 3 4 5 6 7 8

中文翻译

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与MIC2774L-26BM5TR相关器件

型号	品牌	获取价格	描述	数据表
MIC2774L-26M5	MICROCHIP	获取价格	2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5
MIC2774L-26YM5	MICREL	获取价格	Dual Micro-Power Low Voltage Supervisor
MIC2774L-26YM5TR	MICREL	获取价格	Dual Micro-Power Low Voltage Supervisor
MIC2774L-28BM5TR	MICROCHIP	获取价格	Power Supply Support Circuit, Adjustable, 2 Channel, PDSO5, SOT-23, 5 PIN
MIC2774L-28YM5	MICREL	获取价格	Dual Micro-Power Low Voltage Supervisor
MIC2774L-28YM5TR	MICREL	获取价格	Dual Micro-Power Low Voltage Supervisor
MIC2774L-29BM5	ROCHESTER	获取价格	2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5, SOT-23, 5 PIN
MIC2774L-29BM5TR	MICROCHIP	获取价格	Power Supply Support Circuit, Adjustable, 2 Channel, PDSO5, SOT-23, 5 PIN
MIC2774L-29YM5	MICREL	获取价格	Dual Micro-Power Low Voltage Supervisor
MIC2774L-29YM5TR	MICREL	获取价格	Dual Micro-Power Low Voltage Supervisor

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