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參數資料
| 型號： | MAX4785EXS-T |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 模擬信號調理 |
| 英文描述： | 50mA/100mA Current-Limit Switches |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PDSO4 |
| 封裝： | EIAJ, SC-70, 4 PIN |
| 文件頁數： | 1/10頁 |
| 文件大小： | 266K |
| 代理商： | MAX4785EXS-T |
General Description
The MAX4785–MAX4788 family of switches feature inter-
nal current limiting to prevent host devices from being
damaged due to faulty load conditions. These analog
switches have a low 0.7
on-resistance and operate
from a 2.3V to 5.5V input voltage range. They are avail-
able with guaranteed 50mA and 100mA current limits,
making them ideal for 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 MAX4785 and MAX4787 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 MAX4786 and MAX4788 have an autoretry feature
where the switch turns off after the blanking time and
then continuously checks to see if the overload condi-
tion is present. The switch remains on after the overload
condition disappears.
The MAX4785 and MAX4787 are available in a tiny
space-saving 4-pin or 5-pin SC70 package. The
MAX4786 and MAX4788 are available only in the 4-pin
SC70 package. For higher current current-limiting
switches, refer to the MAX4789–MAX4794 and
MAX1693 data sheets.
Applications
PDAs and Palmtop Devices
Cell Phones
GPS Systems
Hand-Held Devices
Features
o
Guaranteed Current Limit: 50mA, 100mA
o
Thermal-Shutdown Protection
o
Reverse-Current Protection
o
0.7
On-Resistance
o
14ms Guaranteed Blanking Time
o
FLAG
Function (MAX4785/MAX4787)
o
65μA Supply Current
o
8μA Latch-Off Current (MAX4785/MAX4787)
o
0.01μA Shutdown Current
o
2.3V to 5.5V Supply Range
o
Undervoltage Lockout
o
Fast Current-Limit Response Time
o
Tiny SC70 Package
M
50mA/100mA Current-Limit Switches
________________________________________________________________
Maxim Integrated Products
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.
1
Ordering Information
2.3V TO 5.5V
IN
OUT
FLAG
GND
ON
μ
P
TO EXTERNAL PORT
MAX4785
MAX4787
Typical Operating Circuit
19-2664; Rev 1; 4/03
Selector Guide appears at end of data sheet.
PART
TEMP RANGE
PIN-
PACKAGE
TOP
MARK
MAX4785
EXS-T
MAX4785EXK-T
MAX4786
EXS-T
MAX4787
EXS-T
MAX4787EXK-T
MAX4788
EXS-T
-40
°
C to +85
°
C
-40
°
C to +85
°
C
-40
°
C to +85
°
C
-40
°
C to +85
°
C
-40
°
C to +85
°
C
-40
°
C to +85
°
C
4 SC70-4
5 SC70-5
4 SC70-4
4 SC70-4
5 SC70-5
4 SC70-4
AGE
ADL
AGF
AGG
AND
AGH
GND
ON
1
5
IN
OUT
MAX4785
MAX4787
SC70
TOP VIEW
2
3
4
FLAG
ON
1
4
IN
OUT
MAX4785–
MAX4788
SC70
2
3
GND
Pin Configurations
相關PDF資料 |
PDF描述 |
|---|---|
| MAX4786EXS-T | 50mA/100mA Current-Limit Switches |
| MAX4787EXK-T | 50mA/100mA Current-Limit Switches |
| MAX4787EXS-T | 50mA/100mA Current-Limit Switches |
| MAX4788EXS-T | 50mA/100mA Current-Limit Switches |
| MAX4785 | LOW-POWER RS-485 FULL-DUPLEX DRIVERS/RECEIVERS 10-MSOP -40 to 85 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX4786EXS | 制造商:Maxim Integrated Products 功能描述:50MA/100MA CURRENT-LIMIT SWITCHES - Cut Tape Product |
| MAX4786EXS+ | 制造商:Maxim Integrated Products 功能描述:CURRENT LIMIT SW 1-IN 1-OUT 2.3V TO 5.5V 0.12A 4PIN SC-70 - Cut Tape Product |
| MAX4786EXS+T | 功能描述:電源開關 IC - 配電 50mA/100mA Current Limit Switch RoHS:否 制造商:Exar 輸出端數量:1 開啟電阻（最大值）:85 mOhms 開啟時間（最大值）:400 us 關閉時間（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 安裝風格:SMD/SMT 封裝 / 箱體:SOT-23-5 |
| MAX4786EXS-T | 功能描述:電源開關 IC - 配電 RoHS:否 制造商:Exar 輸出端數量:1 開啟電阻（最大值）:85 mOhms 開啟時間（最大值）:400 us 關閉時間（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 安裝風格:SMD/SMT 封裝 / 箱體:SOT-23-5 |
| MAX4787EKIT+ | 功能描述:電源開關 IC - 配電 50mA/100mA Current-Limit Switches RoHS:否 制造商:Exar 輸出端數量:1 開啟電阻（最大值）:85 mOhms 開啟時間（最大值）:400 us 關閉時間（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 安裝風格:SMD/SMT 封裝 / 箱體:SOT-23-5 |
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