Datasheet > MIC2785

MIC2785

更新时间： 2024-11-19 14:54:59

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
8页	394K
描述
The MIC2785 is a micropower voltage monitor that provides undervoltage monitoring and manual reset

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MIC2785 数据手册

MIC2785

Dual Supply Voltage Monitor

with Manual Reset

General Description

Features

The MIC2785 is a micropower voltage monitor that

provides undervoltage monitoring and manual reset

capability in a tiny 1.2mm × 1.2mm QFN package. The

MIC2785 provides a monitored voltage input (V_IN) separate

from the supply input (V_DD). This insures that the reset

(/RST) output maintains a valid output state when the

voltage being monitored ramps up or down. The device

also includes a manual reset input (/MR). The /RST output

is an active low push-pull output.

• No external components

• Monitors input voltage for under-voltage condition

• Separate inputs for supply (VDD) and monitor (VIN)

• +1.5% VIN threshold voltage accuracy

• Valid /RST state with VIN down to 0.0V

• Valid /RST state with VDD down to 1.20V

• Factory-programmed 1.62V reference

• Manual reset input (/MR)

The undervoltage detector compares the VIN pin voltage

against the factory-programmed threshold of 1.62V. The

reset output is asserted any time the input voltage drops

below the programmed threshold voltage. A reset can be

generated at any time by asserting the manual reset input,

/MR. This reset output will remain active until the release

of /MR. The /MR input can also be used to daisy-chain the

MIC2785 onto existing power monitoring circuitry or other

supervisors. Hysteresis is included to prevent chattering

due to noise.

• Active low RESET (/RST) output

• Ultra-low input current – 5µA total (VIN and VDD)

• Rejects brief input transients

• –40°C to 85°C operating temperature range

• RoHS lead-free compliant

• Available in 6-pin 1.2mm × 1.2mm Thin QFN package

Applications

• Mobile phones

• PDAs

• GPS Receivers

The MIC2785 consumes a minimum of quiescent current,

only 5µA, 1.5µA from the main supply pin and 3.5µA from

the input pin. Offered in a tiny space saving 6-pin QFN

1.2mm × 1.2mm package.

Datasheets and support documentation are available on

Micrel’s web site at: www.micrel.com.

Typical Application

Memory or Microprocessor Voltage Monitor

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

May 15, 2015

Revision 2.0

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与MIC2785相关器件

型号	品牌	获取价格	描述	数据表
MIC2785-16YFT	MICREL	获取价格	Dual Supply Voltage Monitor with Manual Reset
MIC2785-16YFTTR	MICREL	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC6, ROHS COMPLIANT, MLF-6
MIC2785-16YFT-TR	MICROCHIP	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC6
MIC2786	MICREL	获取价格	Push-Button Reset IC with Voltage Supervisor
MIC2786-XAYMT	MICREL	获取价格	Push-Button Reset IC with Voltage Supervisor
MIC2786-XDYMT	MICROCHIP	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, PDSO8, 2 X 2 MM, 0.55 MM HEIGHT, GREEN, TM
MIC2786-XEYMT	MICROCHIP	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, PDSO8, 2 X 2 MM, 0.55 MM HEIGHT, GREEN, TM
MIC2786-XFYMT	MICREL	获取价格	Push-Button Reset IC with Voltage Supervisor
MIC2786-XGYMT	MICREL	获取价格	Push-Button Reset IC with Voltage Supervisor
MIC2786-XHYMT	MICREL	获取价格	Push-Button Reset IC with Voltage Supervisor

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