參數(shù)資料
型號： MAX4773EUT+T
廠商： Maxim Integrated Products
文件頁數(shù)： 1/10頁
文件大?。?/td> 0K
描述： IC SWITCH 1X1 SOT23-6
產(chǎn)品培訓模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝： 2,500
功能： 開關
電路： 1 x 1:1
導通狀態(tài)電阻： 360 毫歐
電流 - 電源： 125µA
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： SOT-23-6
供應商設備封裝： SOT-6
包裝： 帶卷 (TR)
General Description
The MAX4772/MAX4773 switches feature selectable
internal current limiting to prevent damage to host
devices
due
to
faulty
load
conditions.
The
MAX4772/MAX4773 include a logic input to select a
guaranteed 200mA or 500mA current limit, making them
ideal for SDIO and other load-switching applications.
These analog switches have a low 0.2
on-resistance
and operate from a 2.0V to 4.5V input voltage range.
When the switch is on and a load is connected to the
port, a guaranteed blanking time of 14ms ensures that
the transient voltage settles down. If, after this blanking
time, the load current is greater than the current limit,
the MAX4772 switch is turned off and issues a FLAG to
the microprocessor. The switch can be turned on again
by cycling the power or the ON input.
The MAX4773 has an autoretry feature where the switch
turns off and issues a FLAG to the microprocessor 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 and FLAG
deasserts.
The MAX4772/MAX4773 are available in tiny space-sav-
ing 6-pin SOT23 and 6-pin TDFN (3mm x 3mm) pack-
ages.
Applications
SDIO
PDAs and Palmtop Devices
Cell Phones
GPS Systems
Hand-Held Devices
Features
o Guaranteed Current Limit: 200mA or 500mA
o Thermal-Shutdown Protection
o Reverse-Current Protection
o 0.2 On-Resistance (SEL = High)
o 14ms Guaranteed Blanking Time
o FLAG Function
o Autoretry (MAX4773)
o 80A Supply Current
o 6A Latch-Off Current (MAX4772)
o 0.01A Shutdown Current
o 2.0V to 4.5V Supply Range
o Fast Current-Limit Response Time
o Tiny SOT23 and TDFN Packages
o UL Certification Pending
MAX4772/MAX4773
200mA/500mA Selectable
Current-Limit Switches
________________________________________________________________ Maxim Integrated Products
1
Ordering Information
2.0V TO 4.5V
IN
OUT
FLAG
GND
ON
P
TO SDIO PORT
MAX4772
MAX4773
SEL
Typical Operating Circuit
19-2926; Rev 0; 7/03
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
PART
TEMP RANGE
PIN-
PACKAGE
TOP
MARK
MAX4772EUT-T
-40°C to +85°C
6 SOT23-6
ABND
MAX4772ETT*
-40°C to +85°C
6 TDFN-EP**
—
MAX4773EUT-T
-40°C to +85°C
6 SOT23-6
ABNE
MAX4773ETT*
-40°C to +85°C
6 TDFN-EP**
—
Selector Guide
PART
AUTORETRY
MAX4772EUK-T
No
MAX4772ETT
No
MAX4773EUK-T
Yes
MAX4773ETT
Yes
GND
16 OUT
5 SEL
IN
MAX4772
MAX4773
SOT23
TOP VIEW
2
34 FLAG
ON
OUT
16 ON
5 GND
IN
MAX4772
MAX4773
TDFN
2
34 FLAG
SEL
Pin Configurations
*Future product—contact factory for availability.
**EP—Exposed pad.
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