MAX16025, MAX16026, MAX16027, MAX16028, MAX16029, MAX16030 双/三/四电压、电容调节、排序/监控电路

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MAX16025–MAX16030是采用小型TQFN封装的双/三/四电压监测和电源排序器。通过逻辑输入设置固定或可调节门限，由外部小尺寸电容设置上电排序定时，具有极大的设计灵活性。这些器件可理想用于各种多电压场合。

当各路被监测电压高于各自的门限时，经过一段传输延时或一段由电容设置的延时之后，相应的输出变为高电平；当某路被监测电压低于门限时，经过一段传输延时之后，相应的输出变为低电平。每个监测电路都包括独立的使能输入，可单独关闭电源就绪输出。每个监测器提供独立的推挽或漏极开路输出，漏极开路输出能够支持高达28V的电压，能够与各种DC-DC调节器的关断和使能输入连接。每个检测器均可作为独立的4路监控电路工作，或采用菊花链连接，提供电源排序控制。

MAX16025–MAX16030还具有复位功能，只有在所有监控电压均超过各自的门限后，才释放复位信号。复位超时周期可以内部固定或外部调节。这些器件采用4mm x 4mm、TQFN封装，工作于-40°C至+125°C汽车级温度范围。

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%的可调节门限能够监测低至0.5V的电压
整个温度范围内保持2.7%的固定门限精度
固定(最小140ms)/电容可调延时
独立的漏极开路/推挽式输出
各通道监测电压具备使能输入
9种逻辑选择门限
手动复位和容限(5%/10%)选择输入
小尺寸、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: Sequencers/Trackers

Part Number

Option

Interface

Number of Input Channels

Maximum Operating Voltage Range (V)

Features

Package

Operating Temp. Range (°C)

Price^**

MAX16025

Sequence

Factory Fixed
R/C Adjustable

<6
>6

•	Enable Input

•	Reset Output

THIN QFN/16

-40 to +125

$1.19 @ 1k

MAX16026

THIN QFN/16

$1.19 @ 1k

MAX16027

THIN QFN/20

$1.80 @ 1k

MAX16028

THIN QFN/20

$1.80 @ 1k

MAX16029

THIN QFN/24

$2.69 @ 1k

MAX16030

THIN QFN/24

$2.69 @ 1k

See All Sequencers/Trackers (52)

Key Specifications: Supervisors (2 Monitored Voltages)

Part Number

Interface

Reset Threshold Range (V)

Active-Low Reset Output

Min. Reset Timeout Range

Watchdog Feature

Supervisor Features

Reset Thresh. Acc. (% @+25°C)

Max. I_CC (µA)

Price^**

MAX16025

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

Open Drain

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

No Watchdog

Adjustable Reset Input
High Voltage (>6V)
Manual Reset
Power Fail Comparator

1.5

$1.19 @ 1k

MAX16026

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

Push-Pull

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

No Watchdog

Adjustable Reset Input
High Voltage (>6V)
Manual Reset
Power Fail Comparator

1.5

$1.19 @ 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

Min. Reset Timeout Range

Watchdog Feature

Supervisor Features

Reset Thresh. Acc. (% @+25°C)

Max. I_CC (µA)

Price^**

MAX16027

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

Open Drain

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

No Watchdog

Adjustable Reset Input
High Voltage (>6V)
Manual Reset
Power Fail Comparator

1.5

$1.80 @ 1k

MAX16028

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

Push-Pull

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

No Watchdog

Adjustable Reset Input
High Voltage (>6V)
Manual Reset
Power Fail Comparator

1.5

$1.80 @ 1k

See All Supervisors (3 Monitored Voltages) (21)

Key Specifications: Supervisors (4 Monitored Voltages)

Part Number

Interface

Reset Threshold Range (V)

Active-Low Reset Output

Min. Reset Timeout Range

Watchdog Feature

Supervisor Features

Reset Thresh. Acc. (% @+25°C)

Max. I_CC (µA)

Price^**

MAX16029

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

Open Drain

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

No Watchdog

Adjustable Reset Input
High Voltage (>6V)
Manual Reset
Power Fail Comparator

1.5

$2.69 @ 1k

MAX16030

Push-Pull

$2.69 @ 1k

See All Supervisors (4 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.