MAX16050

更新时间： 2024-10-03 05:00:31

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
22页	309K
描述
Voltage Monitors/Sequencer Circuits with Reverse-Sequencing Capability

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MAX16050 数据手册

19-1013; Rev 0; 11/07

Voltage Monitors/Sequencer Circuits with

Reverse-Sequencing Capability

/MAX6051

General Description

Features

♦ Monitor Up to 6 Voltages/Sequence Up to 5

The MAX16050 monitors up to 5 voltages and

sequences up to 4 voltages, while the MAX16051 moni-

tors up to 6 voltages and sequences up to 5 voltages.

These devices provide an adjustable delay as each sup-

ply is turned on and they monitor each power-supply

voltage. When all of the voltages reach their final values

and the reset delay timer expires, a power-on-reset

(POR) output deasserts allowing the microcontroller (µC)

to operate. If any voltage falls below its threshold, the

reset output asserts and all voltage supplies are turned

off. The MAX16050/MAX16051 can be daisy-chained to

control a higher number of voltages in a system.

Voltages

♦ Pin-Selectable Sequencing Order (MAX16050 Only)

♦ Reverse-Sequencing Capability on Shutdown

♦ Overvoltage Monitoring with Independent Output

♦

1ꢀ5ꢁ ꢂhreshold Accuracy

♦ 2ꢀ7V to 13ꢀ2V Operating Voltage Range

♦ Charge Pump to Fully Enhance External

n-Channel FEꢂs

♦ Capacitor-Adjustable Sequencing Delay

During a power-down event, the MAX16050/MAX16051

can reverse sequence the outputs. In this situation, each

voltage is turned off sequentially until it reaches a 250mV

level, at which point, the next supply is turned off. The

MAX16050/MAX16051 also provide internal pulldown cir-

cuitry that turns on during power-down, to help dis-

charge large output capacitors.

♦ Fixed or Capacitor-Adjustable Reset ꢂimeout

♦ Internal 85mA Pulldowns for Discharging

Capacitive Loads Quickly

♦ Daisy-Chaining Capability to Communicate

Across Multiple Devices

♦ Small 4mm x 4mm, 28-Pin ꢂQFN Package

The MAX16050/MAX16051 feature a charge-pump sup-

ply output that can be used as a pullup voltage for dri-

ving external n-channel MOSFETs and an overvoltage

output that indicates when any of the monitored voltages

exceeds its overvoltage threshold. The MAX16050 also

provides three sequence control inputs for changing the

sequence order, while the MAX16051 has a fixed

sequence order.

Pin Configurations

TOP VIEW

21 20 19 18 17 16 15

SHDN 22

DELAY 23

EN_HOLD

DISC2

12 OUT2

TIMEOUT

SEQ1

The MAX16050/MAX16051 are available in a 28-pin

(4mm x 4mm) thin QFN package and are fully specified

over the -40°C to +85°C extended operating tempera-

ture range.

SET2

DISC3

OUT3

SET3

MAX16050

SEQ2

SEQ3

*EP

Applications

CP_OUT

Servers

Telecom Equipment

Storage Systems

Workstations

Networking Systems

ꢂHIN QFN

(4mm x 4mm)

*EP = EXPOSED PAD

Pin Configurations continued at end of data sheet.

ꢂypical Operating Circuit appears at end of data sheetꢀ

Ordering Information

MONIꢂORED

VOLꢂAGES

SEQUENCED

PARꢂ

PIN-PACKAGE

PACKAGE CODE

MAX16050ETI+

MAX16051ETI+

28 TQFN-EP*

T2844-1

Note: All devices are specified over the -40°C to +85°C operating temperature range.

+Denotes lead-free package.

*EP = Exposed pad.

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at wwwꢀmaxim-icꢀcomꢀ

12 3 4 5 6 7...22

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与MAX16050相关器件

型号	品牌	获取价格	描述	数据表
MAX16050_08	MAXIM	获取价格	Voltage Monitors/Sequencer Circuits with Reverse-Sequencing Capability
MAX16050ETI+	MAXIM	获取价格	Voltage Monitors/Sequencer Circuits with Reverse-Sequencing Capability
MAX16050EVKIT	MAXIM	获取价格	Reverse-Sequencing Operation
MAX16050EVKIT+	MAXIM	获取价格	Reverse-Sequencing Operation
MAX16051	MAXIM	获取价格	Reverse-Sequencing Operation
MAX16051	ADI	获取价格	电压监测器/排序电路，可反向排序
MAX16051ETI+	MAXIM	获取价格	Voltage Monitors/Sequencer Circuits with Reverse-Sequencing Capability
MAX16052	MAXIM	获取价格	High-Voltage, Adjustable Sequencing/Supervisory Circuits
MAX16052	ADI	获取价格	高压、可调节排序/监控电路
MAX16052_10	MAXIM	获取价格	High-Voltage, Adjustable Sequencing/Supervisory Circuits

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