Datasheet > MAX14672

MAX14672

更新时间： 2024-09-28 12:02:07

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
13页	1266K
描述
Bidirectional Current-Blocking, High-Input Overvoltage Protector with Adjustable OVLO

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MAX14672 数据手册

EVALUATION KIT AVAILABLE

MAX14670–MAX14673

Bidirectional Current-Blocking, High-Input

Overvoltage Protector

with Adjustable OVLO

General Description

The MAX14670–MAX14673 provide protection to valu-

able consumer circuits against positive voltage faults up

to +28V . An internal clamp also protects the devices

Beneﬁts and Features

● Protect High-Power Portable Devices

• Wide Operating Input Voltage Protection from

+3V to +28V

from surges up to +80V. The device is able to disconnect

the system from its output terminal when wrong input

conditions are detected.

• +80V Surge Capability

• 4.5A Continuous Current Capability (WLP Package)

• Integrated 65mΩ (typ) n-Channel MOSFET Switch

(WLP Package)

The MAX14670–MAX14673 overvoltage protection devic-

es feature low 65mΩ (typ), WLP package on-resistance

● Flexible Overvoltage Protection Design

• Wide +5V to +22VAdjustable OVLO Threshold

Range

(R ) internal FETs, effectively minimizing the voltage

drop across the device. When the input voltage exceeds

the overvoltage threshold, the internal FET is turned off to

prevent damage to the protected components.

• ACOK and ACOK Indicate Input is in Range

• OTG Enable Allows OUT to Supply IN

• Preset Accurate Internal OVLO Thresholds:

6.8V ±3% (MAX14670)

The overvoltage protection threshold can be adjusted

with optional external resistors to any voltage between

5V and 22V. The devices automatically choose the accu-

rate internal trip thresholds when the overvoltage lockout

input (OVLO) is set lower than the external OVLO select

voltage. The internal OVLO are preset to typical 6.8V

(MAX14670), 15.5V (MAX14671), 5.825V (MAX14672),

or 22V (MAX14673).

15.5V ±3% (MAX14671)

5.825V ±3% (MAX14672)

22V ±3% (MAX14673)

● Additional Protection Features Increase System

Reliability

• OUT-IN Reverse Bias Blocking Capability

• Soft-Start to Minimize Inrush Current

• Internal 15ms Startup Debounce

• Thermal Shutdown Protection

The MAX14670–MAX14673 feature reverse bias blocking

capability. Unlike other overvoltage protectors, when the

MAX14670–MAX14673 are disabled, the voltage applied

to OUT does not feed back into IN. These devices also

feature an OTG enable pin that allows OUT voltage to

supply IN. The MAX14670–MAX14673 also have thermal

shutdown protection against over load conditions.

● Space Saving

• 15-Bump, 1.6mm x 2.1mm, WLP Package

• 10-Pin, 3mm x 3mm, TDFN Package

Applications

● Tablets

● Smart Phones

● E-Readers

● PC Notebooks

● Charging USB Hosts

The MAX14670–MAX14673 are specified over the extend-

ed -40°C to +85°C temperature range. The MAX14670/

MAX14671 are available in a 15-bump WLP package and

the MAX14672/MAX14673 are available in a 10-pin TDFN

package.

Ordering Information/Selector Guide and Typical Operating

Circuit appear at end of data sheet.

For related parts and recommended products to use with this part, refer

to www.maximintegrated.com/MAX14670.related.

19-6727; Rev 0; 6/13

12 3 4 5 6 7...13

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与MAX14672相关器件

型号	品牌	获取价格	描述	数据表
MAX14672ETB	MAXIM	获取价格	Bidirectional Current-Blocking, High-Input Overvoltage Protector with Adjustable OVLO
MAX14673	MAXIM	获取价格	Bidirectional Current-Blocking, High-Input Overvoltage Protector with Adjustable OVLO
MAX14673ETB	MAXIM	获取价格	Bidirectional Current-Blocking, High-Input Overvoltage Protector with Adjustable OVLO
MAX14676	MAXIM	获取价格	Wearable Charge Management Solution
MAX14676	ADI	获取价格	Wearable Charge Management Solution
MAX14676A	MAXIM	获取价格	Wearable Charge Management Solution
MAX14676A	ADI	获取价格	Wearable Charge Management Solution
MAX14676AEWOT	MAXIM	获取价格	Wearable Charge Management Solution
MAX14676EWOT	MAXIM	获取价格	Wearable Charge Management Solution
MAX14680	ADI	获取价格	超低导通电阻、结构紧凑的双向电池开关

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