參數(shù)資料
型號(hào)： MAX4794EUS+T
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 1/11頁(yè)
文件大?。?/td> 0K
描述： IC ANALOG SWITCH 1X1 SOT143-4
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 1
功能： 開(kāi)關(guān)
電路： 1 x 1:1
導(dǎo)通狀態(tài)電阻： 400 毫歐
電壓電源： 單電源
電壓 - 電源，單路/雙路(±)： 2.3 V ~ 5.5 V
電流 - 電源： 80µA
工作溫度： -40°C ~ 85°C
安裝類(lèi)型： 表面貼裝
封裝/外殼： TO-253-4，TO-253AA
供應(yīng)商設(shè)備封裝： SOT-143-4
包裝： 標(biāo)準(zhǔn)包裝
產(chǎn)品目錄頁(yè)面： 1421 (CN2011-ZH PDF)
其它名稱(chēng)： MAX4794EUS+TDKR
General Description
The MAX4789–MAX4794 family of switches feature
internal 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 avail-
able with guaranteed 200mA, 250mA, and 300mA cur-
rent limits, making them ideal for SDIO and other load
switching applications.
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.
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.
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.
Applications
PDAs and Palmtop Devices
Cell Phones
GPS Systems
Handheld Devices
SDIO
Features
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)
80A Supply Current
8A Latch-Off Current
(MAX4789/MAX4791/MAX4793)
0.01A Shutdown Current
2.3V to 5.5V Supply Range
Undervoltage Lockout
Fast Current-Limit Response Time (5s)
TDFN and SOT23/SOT143 Packages
MAX4789–MAX4794
200mA/250mA/300mA Current-Limit Switches
________________________________________________________________
Maxim Integrated Products
1
Ordering Information
2.3V TO 5.5V
IN
OUT
FLAG
GND
ON
μP
TO SDIO PORT
MAX4789
MAX4791
MAX4793
Typical Operating Circuit
19-2663; Rev 3; 10/08
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
*EP = Exposed paddle.
+Denotes a lead-free/RoHS-compliant package.
T = Tape and reel.
Ordering Information continued at end of data sheet.
Selector Guide appears at end of data sheet.
PART
TEMP RANGE
PIN-
PACKAGE
TOP
MARK
MAX4789EUS+T
-40°C to +85°C
4 SOT143
KAFE
MAX4789EUK+T
-40°C to +85°C
5 SOT23
AEAC
MAX4789ETT+
-40°C to +85°C
6 TDFN-EP*
ABO
MAX4790EUS+T
-40°C to +85°C
4 SOT143
KAFF
MAX4790ETT+
-40°C to +85°C
6 TDFN-EP
ABP
GND
FLAG
Pin Configurations continued at end of data sheet.
15 OUT
IN
MAX4789
MAX4791
MAX4793
SOT23
TOP VIEW
2
34
ON
14 IN
OUT
MAX4789–
MAX4794
SOT143
23
GND
Pin Configurations
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參數(shù)描述
MAX4795ETT-T 功能描述:電源開(kāi)關(guān) IC - 配電 RoHS:否 制造商:Exar 輸出端數(shù)量:1 開(kāi)啟電阻（最大值）:85 mOhms 開(kāi)啟時(shí)間（最大值）:400 us 關(guān)閉時(shí)間（最大值）:20 us 工作電源電壓:3.2 V to 6.5 V 電源電流（最大值）: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-23-5
MAX4795EUK 制造商:Maxim Integrated Products 功能描述:- Cut Tape Product
MAX4795EUK+ 制造商:Maxim Integrated Products 功能描述:CURRENT LIMIT SW 1-IN 1-OUT 2V TO 4.5V 0.72A 5PIN SOT-23 - Rail/Tube 制造商:Maxim Integrated Products 功能描述:450MA/500MA CURRENT-LIMIT SWITCHES
MAX4795EUK+T 功能描述:電源開(kāi)關(guān) IC - 配電 450mA/500mA Current Limit Switch RoHS:否 制造商:Exar 輸出端數(shù)量:1 開(kāi)啟電阻（最大值）:85 mOhms 開(kāi)啟時(shí)間（最大值）:400 us 關(guān)閉時(shí)間（最大值）:20 us 工作電源電壓:3.2 V to 6.5 V 電源電流（最大值）: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-23-5
MAX4795EUK-T 功能描述:電源開(kāi)關(guān) IC - 配電 RoHS:否 制造商:Exar 輸出端數(shù)量:1 開(kāi)啟電阻（最大值）:85 mOhms 開(kāi)啟時(shí)間（最大值）:400 us 關(guān)閉時(shí)間（最大值）:20 us 工作電源電壓:3.2 V to 6.5 V 電源電流（最大值）: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-23-5
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