快速浏览 - MAX16041, MAX16042, MAX16043 双/三/四电压、电容调节、排序/监控电路

概述

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MAX16041/MAX16042/MAX16043是双/三/四通道电压监视器和排序器，采用小型QFN封装。该器件可通过逻辑输入选择固定或可调门限，并可以由小尺寸的外部电容设置排序定时，具有极大的设计灵活性。这一系列通用器件是各种多电压应用的理想选择。

当受监视的输入电压超过各自的门限值时，经过一段传输延迟或一段由电容设置的延迟之后，相应的输出变为高电平。当输入电压低于门限值时，经过一段传输延迟之后，相应的输出变为低电平。每个检测器都包含独立的使能输入，可单独关闭各自的电源就绪输出。每个检测器具有独立的漏极开路输出，支持最高28V的电压，能够与各种DC-DC调节器的关断和使能输入相连。每个检测器均可作为独立的四路监控电路工作，或者采用菊链连接，提供电源排序控制。

MAX16041/MAX16042/MAX16043也包含推挽复位功能，只有当所有被监视的电压都高于各自的门限后，才释放复位信号。复位超时可以内部确定或者外部调整。这些器件采用4mm x 4mm，TQFN封装，工作温度为-40°C至+125°C。

关键特性		应用/使用
2.2V至28V工作电压范围为3.3V、2.5V、1.8V、1.5V和1.2V系统提供固定门限精度为1.5%的可调门限，能够监测低至0.5V的电压整个温度范围内保证2.7%的固定门限精度固定(最小140ms)/电容可调的延迟独立的漏极开路输出和推挽/RESET输出各个被监视通道均具有独立的使能输入 9种逻辑可选门限手动复位和容限选择(5%/10%)输入小型，4mm x 4mm TQFN封装工作于-40°C至+125°C温度范围		DC-DC电源多电压系统网络/电信设备服务器/工作站存储系统

Key Specifications: Power-Supply Sequencers and Voltage Trackers

Part Number

Option

Interface

Input Chan.

V_IN
(V)

Features

Industry Qualified

Oper. Temp.
(°C)

Package/Pins

Smallest Available Pckg.
(mm²)

Price

max

max w/pins

See Notes

MAX16041

Sequence

Factory Fixed

R/C Adjustable

Enable Input

Reset Output

-40 to +125

TQFN/16

16.8

$1.19 @1k

MAX16042

Automotive - General

TQFN/20

$1.80 @1k

MAX16043

Automotive - General

TQFN/24

$2.69 @1k

查看所有Power-Supply Sequencers and Voltage Trackers (35)

Key Specifications: Supervisors (2 Monitored Voltages)

Part Number

Interface

Reset Thresh.
(V)

Reset Out

t_RESET

Watchdog Feature

Supervisor Features

Reset Thresh. Accur.
(%)

I_CC
(µA)

Price

min

@ +25°C

max

See Notes

MAX16041

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

>=5.5

Active Low

Push-Pull

1ms to 15ms

15ms to 85ms

85ms to 300ms

300ms to 1s

<1ms

>1s

Adjustable

No Watchdog

Adjustable Reset Input

High Voltage (>6V)

Manual Reset

Power Fail Comparator/Low Battery Detect

1.5

$1.19 @1k

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

Key Specifications: Supervisors (3 Monitored Voltages)

Part Number

Interface

Reset Thresh.
(V)

Reset Out

t_RESET

Watchdog Feature

Supervisor Features

Reset Thresh. Accur.
(%)

I_CC
(µA)

Price

min

@ +25°C

max

See Notes

MAX16042

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

>=5.5

Active Low

Push-Pull

1ms to 15ms

15ms to 85ms

85ms to 300ms

300ms to 1s

<1ms

>1s

Adjustable

No Watchdog

Adjustable Reset Input

High Voltage (>6V)

Manual Reset

Power Fail Comparator/Low Battery Detect

1.5

$1.80 @1k

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

Key Specifications: Supervisors (4 Monitored Voltages)

Part Number

Interface

Reset Thresh.
(V)

Reset Out

t_RESET

Watchdog Feature

Supervisor Features

Reset Thresh. Accur.
(%)

I_CC
(µA)

Price

min

@ +25°C

max

See Notes

MAX16043

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

>=5.5

Active Low

Push-Pull

1ms to 15ms

15ms to 85ms

85ms to 300ms

300ms to 1s

<1ms

>1s

Adjustable

No Watchdog

Adjustable Reset Input

High Voltage (>6V)

Manual Reset

Power Fail Comparator/Low Battery Detect

1.5

$2.69 @1k

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