Datasheet > MAX4789

MAX4789

更新时间： 2024-11-30 14:57:15

品牌	Logo	应用领域
亚德诺 - ADI		开关
页数	文件大小	规格书
12页	1728K
描述
200mA/250mA/300mA限流开关

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中文翻译

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MAX4789 数据手册

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MAX4789–MAX4794

200mA/250mA/300mA Current-Limit Switches

General Description

Beneﬁts and Features

The MAX4789–MAX4794 family of switches feature inter-

nal current limiting to prevent damage to host devices due

to faulty load conditions. These analog switches have a

low 0.2Ω on-resistance and operate from 2.3V to 5.5V

input voltage range. They are available with guaranteed

200mA, 250mA, and 300mA current limits, making them

ideal for SDIO and other load switching applications.

● Guaranteed Current Limit: 200mA, 250mA, 300mA

● Thermal-Shutdown Protection

● Reverse Current Protection

● 0.2Ω On-Resistance

● 14ms Guaranteed Blanking Time

●

FLAG Function (MAX4789/MAX4791/MAX4793)

When the switch is on and a load is connected to the

port, a guaranteed blanking time of 14ms ensures that

the transient voltages settle down. If after this blanking

time the load current is greater than the current limit, the

MAX4789, MAX4791, and MAX4793 enter a latch-off

state where the switch is turned off and FLAG is issued to

the microprocessor. The switch can be turned on again by

cycling the power or the ON pin.

● 80µA Supply Current

● 8µA Latch-Off Current

(MAX4789/MAX4791/MAX4793)

● 0.01µA Shutdown Current

● 2.3V to 5.5V Supply Range

● Undervoltage Lockout

● Fast Current-Limit Response Time (5µs)

● TDFN and SOT23/SOT143 Packages

The MAX4790, MAX4792, and MAX4794 have an

autoretry feature where the switch turns off after the

blanking time and then continuously checks to see if the

overload condition is present. The switch remains on

after the overload condition disappears.

Typical Operating Circuit

The MAX4789–MAX4794 are available in 6-pin 3mm x

3mm TDFN and tiny space-saving 4-pin SOT143 pack-

ages. The MAX4789/MAX4790/MAX4791/MAX4793 are

also available in a tiny 5-pin SOT23 package. For lower

current current-limiting switches, refer to the MAX4785–

MAX4788 data sheet.

2.3V TO 5.5V

MAX4789

MAX4791

MAX4793

µP

FLAG

OUT

TO SDIO PORT

Applications

● PDAs and Palmtop Devices

● Cell Phones

GND

● GPS Systems

● Handheld Devices

● SDIO

Ordering Information and Selector Guide appear at end of

data sheet.

19-2663; Rev 5; 8/19

12 3 4 5 6 7...12

中文翻译

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与MAX4789相关器件

型号	品牌	获取价格	描述	数据表
MAX4789_08	MAXIM	获取价格	200mA/250mA/300mA Current-Limit Switches
MAX4789ETT	MAXIM	获取价格	200mA/250mA/300mA Current-Limit Switches
MAX4789ETT+	MAXIM	获取价格	200mA/250mA/300mA Current-Limit Switches
MAX4789ETT+T	MAXIM	获取价格	Analog Circuit, 1 Func, BICMOS, 3 X 3 MM, 0.80 MM HEIGHT, THIN, EXPOSED PAD, MO-220, QFN-6
MAX4789ETT-T	MAXIM	获取价格	Analog Circuit, 1 Func, BICMOS, 3 X 3 MM, 0.80 MM HEIGHT, THIN, EXPOSED PAD, MO-220, QFN-6
MAX4789EUK	MAXIM	获取价格	200mA/250mA/300mA Current-Limit Switches
MAX4789EUK+	MAXIM	获取价格	Analog Circuit, 1 Func, BICMOS, PDSO5, SOT-23, 5PIN
MAX4789EUK+T	MAXIM	获取价格	200mA/250mA/300mA Current-Limit Switches
MAX4789EUK-T	MAXIM	获取价格	200mA/250mA/300mA Current-Limit Switches
MAX4789EUS	MAXIM	获取价格	200mA/250mA/300mA Current-Limit Switches

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