Datasheet > G686/7

G686/7

更新时间： 2024-04-09 19:02:12

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描述
G686H/L is a Push-Pull High/Low Reset G687L is an Open-Drain Low Reset

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G686/7 数据手册

G686/G687

Global Mixed-mode Technology

Low Voltage Reset IC

Features

General Description

Monitor Supply Voltages of ±2% Reset Thresh-

The G686/G687 microprocessor (µP) supervisory

circuits monitor system voltages in µP and digital

systems. They provide excellent circuit reliability at

low cost by eliminating external components.

old Accuracy

Internal Set Reset Timeout Period 200ms (TYP)

Manual RESET Input (MR )

Low Quiescent Current : 15µA at VCC=3.3V

Available in three RESET Output Options

Since the sense pin is separated from power supply,

it allows the IC to monitor added power supply. Using

the IC with the sense pin separated from power sup-

ply enables output to maintain the state of detection

even when voltage of the monitored power supply

drops to 0V. The VSEN pin is high impedance and

can be used for application of reset threshold pro-

gramming.

Push-Pull RESET Output (G686L)

Push-Pull RESET Output (G686H)

Open-Drain RESET (G687L)

Guaranteed Reset Valid to VCC = 1V

Power-Supply Transient Immunity

SOT-23-5 Package

Moreover, with the built-in reset timeout delay about

800ms, enables the IC remains asserts after the

VSEN has risen above reset threshold or manual

reset is deasserted.

Applications

Computers

Controllers

Intelligent Instruments

Critical µP and µC Power Monitoring

Portable/Battery-Powered Equipment

Telecom/Networking Equipment

The G686/G687 is available in SOT-23-5 packages.

Ordering Information

ORDER

PACKAGE

OUTPUT TYPE

MARKING

TEMP. RANGE

NUMBER

G686LT11U

G686HT11U

G687LT11U

(Green)

SOT-23-5

Push-Pull Active Low

Push-Pull Active High

Open Drain

68FLx

68FHx

68GLx

-40°C ~ +105°C

Note: T1: SOT-23-5

1: Bonding Code

U: Tape Reel

Pin Configuration

Typical Application Circuit

Detect

Voltage

VCC

G686/G687

100kΩ

RESET

(RESET)

VSEN

RESET

(RESET)

GND

VCC

Manual

Reset

GND

VSEN

SOT-23-5

The 100kΩ pull up resistor is only for G687L

R1+R2

()is for G686H

**Adjustable reset threshold voltage is V_th= 0.994 ×

ICC may increased at high T_A, Therefore, can not connect

Resistors to VCC to prevent Icc abnormal behavior at high T_A.

TEL: 886-3-5788833

http://www.gmt.com.tw

Ver: 0.4

Apr 10, 2012

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