MAX6715, MAX6716, MAX6717, MAX6718, MAX6719, MAX6720, MAX6721, MAX6722, MAX6723, MAX6724, MAX6725, MAX6726, MAX6727, MAX6728, MAX6729 双/三路、超低电压、SOT23封装、微处理器监控电路

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MAX6715-MAX6729是超低电压µP监控电路，用于监视二路或三路系统电源。当任一被监视电源电压跌至工厂预置或可调门限以下时，这些器件会触发系统复位，在所有电源电压上升至门限以上之后，复位信号仍将在最小超时周期内保持有效。与离散IC或分立元件相比，这些集成的二/三路监控电路可显著提高系统的稳定性、并减小系统尺寸。

这些器件监视1.8V至5.0V主电源(V_CC1)和0.9V至3.3V次级电源(V_CC2)，具有工厂预置的复位门限选项(参见完整数据资料中的Reset Voltage Threshold Suffix Guide)。外部可调RSTIN输入允许用户监视低至0.62V的第三路电源。V_CC1或V_CC2保持在0.8V以上时，这些器件确保正确的复位输出逻辑。

MAX6715-MAX6729提供多个具有看门狗输入的推挽式或漏极开路复位输出、手动复位输入以及电源失效输入/输出(参见完整数据资料中的Selector Guide)。1.1ms至1120ms (最小值)可选则的复位超时门限(参见完整数据资料中的Reset Timeout Period Suffix Guide)。MAX6715-MAX6729采用小尺寸5、6或8引脚SOT23封装，工作温度范围-40°C至+85°C。

关键特性

应用/使用

V_CC1 (主电源电压)复位门限：1.58V至4.63V
V_CC2 (副电源电压)复位门限：0.79V至3.08V
外部可调RSTIN门限用于辅助电源/三路电源监视(0.62V内部基准)
看门狗选项
- 35s (最小值)长启动周期
- 1.12s (最小值)正常超时周期
手动复位输入选项
电源失效输入/输出选项(推挽式和漏极开路低电平有效)
V_CC1或V_CC2低至0.8V时保证复位输出正常
复位输出逻辑选项
不受V_CC瞬变影响
3.6V供电时电源电流低至14µA (典型值)
小尺寸5、6或8引脚SOT23封装

	计算机/服务器
	工业设备
	多电压系统
	便携式电池供电设备
	打印机与传真机
	机顶盒
	电信/网络设备

Key Specifications: Supervisors (2 Monitored Voltages)

Part Number

Interface

Reset Threshold Range (V)

Active-Low Reset Output

Min. Reset Timeout Range

Watchdog Feature

Nom. Watchdog Timeout Range

Supervisor Features

Reset Thresh. Acc. (% @+25°C)

Max. I_CC (µA)

RoHS Available

Package

Operating Temp. Range (°C)

Price^**

MAX6715

Factory Fixed

0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5

Open Drain

15ms to 85ms
1ms to 15ms
300ms to 1s
85ms to 300ms
>1s

No Watchdog

Manual Reset

2.5

Yes

SOT-23/6

-40 to +85
0 to +70

$1.38 @ 1k

MAX6716

Push-Pull

No Watchdog

Manual Reset

SOT-23/6

$1.38 @ 1k

MAX6717

Open Drain

No Watchdog

Manual Reset

SOT-23/5

$1.16 @ 1k

MAX6718

Push-Pull

No Watchdog

Manual Reset

SOT-23/5

$1.16 @ 1k

MAX6721

Open Drain

Input (WDI)
Extended Setup Period

1s to 2s
>2s

Manual Reset

SOT-23/6

$1.38 @ 1k

MAX6722

Push-Pull

Input (WDI)
Extended Setup Period

1s to 2s
>2s

Manual Reset

SOT-23/6

$1.38 @ 1k

MAX6728

Open Drain

Input (WDI)
Extended Setup Period

1s to 2s
>2s

Adjustable Reset Input
Manual Reset
Power Fail Comparator

SOT-23/8

$1.50 @ 1k

MAX6729

Push-Pull

Input (WDI)
Extended Setup Period

1s to 2s
>2s

Adjustable Reset Input
Manual Reset
Power Fail Comparator

SOT-23/8

$1.50 @ 1k

See All Supervisors (2 Monitored Voltages) (70)

Key Specifications: Supervisors (3 Monitored Voltages)

Part Number

Interface

Reset Threshold Range (V)

Active-Low Reset Output

Active-High Reset Output

Min. Reset Timeout Range

Watchdog Feature

Nom. Watchdog Timeout Range

Supervisor Features

Reset Thresh. Acc. (% @+25°C)

Max. I_CC (µA)

RoHS Available

Package

Operating Temp. Range (°C)

Price^**

MAX6719

Factory Fixed

0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5

Open Drain

15ms to 85ms
1ms to 15ms
300ms to 1s
85ms to 300ms
>1s

No Watchdog

Adjustable Reset Input
Manual Reset

2.5

Yes

SOT-23/6

-40 to +85
0 to +70

$1.38 @ 1k

MAX6720

Push-Pull

No Watchdog

Adjustable Reset Input
Manual Reset

SOT-23/6

$1.38 @ 1k

MAX6723

Open Drain

Input (WDI)
Extended Setup Period

1s to 2s
>2s

Adjustable Reset Input

SOT-23/6

$1.38 @ 1k

MAX6724

Push-Pull

Input (WDI)
Extended Setup Period

1s to 2s
>2s

Adjustable Reset Input

SOT-23/6

$1.38 @ 1k

MAX6725

Open Drain

Input (WDI)
Extended Setup Period

1s to 2s
>2s

Adjustable Reset Input
Manual Reset

SOT-23/8

$1.50 @ 1k

MAX6726

Push-Pull

Input (WDI)
Extended Setup Period

1s to 2s
>2s

Adjustable Reset Input
Manual Reset

SOT-23/8

$1.50 @ 1k

MAX6727

Open Drain

Input (WDI)
Extended Setup Period

1s to 2s
>2s

Adjustable Reset Input
Manual Reset

SOT-23/8

$1.50 @ 1k

See All Supervisors (3 Monitored Voltages) (21)

Notes:
^**This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.