快速浏览 - MAX6782, MAX6783, MAX6784, MAX6785, MAX6786, MAX6787, MAX6788, MAX6789, MAX6790 低功耗、1%精度、双/三/四电平电池监视器，采用微型TDFN和TQFN封装

概述

完整的数据资料 (PDF, 188kB)
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MAX6782–MAX6790为采用微型TDFN和TQFN封装的低功耗、1%精度、双/三/四电平电池监视器。这些器件可理想地监视单节锂离子(Li+)电池或多节碱性/NiCd/NiMH电池电源。这些器件具有固定和可调的滞回选择，从而消除了与电池电压监视器相关的断续输出。

MAX6782/MAX6783可在单个封装内提供4个具有工厂预设(0.5%，5%，10%)或可调整滞回的电池监视器。而MAX6784/MAX6785则提供3个具有工厂预设(0.5%，5%，10%)或可调整滞回的电池监视器。MAX6786/MAX6787/MAX6788提供2个电池监视器，带有用于设置上升或下降门限的外部输入，允许外部滞回控制。MAX6789/MAX6790具有4电平过压检测，采用互补输出。

MAX6782–MAX6790同时具有漏极开路输出和推挽输出。MAX6782/MAX6784/MAX6786/MAX6789可提供推挽输出，而MAX6783/MAX6785/MAX6787/MAX6790则提供漏极开路输出。MAX6788可提供一个漏极开路输出和一个推挽输出(请参考完整数据资料中的Selector Guide)。该器件系列采用节省空间的TDFN和TQFN封装，可工作于扩展的-40°C至+85°C温度范围内。

关键特性

应用/使用

在整个温度范围内，门限精度为1%
双/三/四路低电池输出
电池电流低至5.7µA
漏极开路输出或推挽输出
固定或可调的滞回
低输入偏置电流
V_BATT = 1.05V时，保证低电池输出逻辑状态有效
反向电池保护
不受电池短时瞬变的影响
工作于-40°C至+85°C温度范围
小型TDFN和TQFN封装

	电池供电系统(单节Li+或多节NiMH、NiCd、碱性电池)
	蜂窝电话/无绳电话
	电子玩具
	MP3播放器
	寻呼机
	PDA
	便携式医疗设备

Key Specifications: Supervisors (2 Monitored Voltages)

Part Number

Interface

Reset Thresh.
(V)

Reset Out

Watchdog Feature

Supervisor Features

Reset Thresh. Accur.
(%)

I_CC
(µA)

Price

Active Low

@ +25°C

max

See Notes

MAX6786

R/C Adjustable

0 to 1.2

1.2 to 1.8

1.8 to 2.5

2.5 to 3.3

3.3 to 5.5

Push-Pull

No Watchdog

Power Fail Comparator/Low Battery Detect

w/Hysteresis (>5%)

$1.26 @1k

MAX6787

R/C Adjustable

Open Drain

$1.26 @1k

MAX6788

Factory Fixed

R/C Adjustable

Open Drain

Push-Pull

$1.26 @1k

查看所有Supervisors (2 Monitored Voltages) (84)

Key Specifications: Supervisors (3 Monitored Voltages)

Part Number

Interface

Reset Thresh.
(V)

Reset Out

Watchdog Feature

Supervisor Features

Reset Thresh. Accur.
(%)

I_CC
(µA)

Price

Active Low

@ +25°C

max

See Notes

MAX6784

Factory Fixed

R/C Adjustable

0 to 1.2

1.2 to 1.8

1.8 to 2.5

2.5 to 3.3

3.3 to 5.5

Push-Pull

No Watchdog

Power Fail Comparator/Low Battery Detect

w/Hysteresis (>5%)

$1.56 @1k

MAX6785

Open Drain

$1.56 @1k

查看所有Supervisors (3 Monitored Voltages) (32)

Key Specifications: Supervisors (4 Monitored Voltages)

Part Number

Interface

Reset Thresh.
(V)

Reset Out

Watchdog Feature

Supervisor Features

Reset Thresh. Accur.
(%)

I_CC
(µA)

Price

Active Low

@ +25°C

max

See Notes

MAX6782

Factory Fixed

R/C Adjustable

0 to 1.2

1.2 to 1.8

1.8 to 2.5

2.5 to 3.3

3.3 to 5.5

Push-Pull

No Watchdog

$1.94 @1k

MAX6783

Factory Fixed

R/C Adjustable

Open Drain

$1.94 @1k

MAX6788

Factory Fixed

R/C Adjustable

Open Drain

Push-Pull

Power Fail Comparator/Low Battery Detect

w/Hysteresis (>5%)

$1.26 @1k

MAX6789

Push-Pull

Overvoltage/Window Monitor

$2.01 @1k

MAX6790

Open Drain

Overvoltage/Window Monitor

$2.01 @1k

查看所有Supervisors (4 Monitored Voltages) (26)