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參數(shù)資料
| 型號： | MAX1838 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Dual USB Switch with Fault Blanking and Autoreset |
| 中文描述： | 雙路USB開關，帶有故障屏蔽及自復位功能 |
| 文件頁數(shù)： | 7/12頁 |
| 文件大?。?/td> | 639K |
| 代理商： | MAX1838 |
M
Dual USB Switch with Fault Blanking
and Autoreset
_______________________________________________________________________________________
7
1ms/div
SWITCH TURN-ON TIME, C
OUT
5V
5V
V
ON
V
OUT_
2V
0
1V
3V
4V
0
MAX1838 toc17
Typical Operating Characteristics (continued)
(Circuit of Figure 2, V
IN_
= 5V, T
A
= +25
°
C, unless otherwise noted.)
1ms/div
SWITCH TURN-OFF TIME,
C
OUT
= 1
μ
F R
OUT
= 10
MAX1838 toc18
5V
5V
V
ON
V
OUT_
2V
0
1V
3V
4V
0
1ms/div
START-UP TIME INTO 10
LOAD
4V
V
OUT_
2V
5V
V
ON
I
OUT_
0
0.5A
0
0
Pin Description
PIN
NAME
FUNCTION
1, 8
GND
Ground. Connect both GND pins together.
2
SEL
Select Input. Control input to select from either V
IN_
or V
AUX_
for both outputs. Pull SEL high for
power from IN source, low for power from AUX source.
3, 6
AUXA, AUXB
Auxiliary Input. Connect both AUX pins together and bypass with a 0.1μF capacitor to ground.
Load conditions may require additional bulk capacitance to maintain AUX voltage regulation.
4, 5
INA, INB
Power Input. Connect both IN pins together and bypass with a 0.1μF capacitor to GND. Load
conditions may require additional bulk capacitance to maintain the IN voltage regulation.
7
ON
Control Input. A logic low at
ON
turns on the device. A logic high shuts off both outputs and all
power to internal circuits. Driving
ON
higher than IN does not cause damage.
9
FAULTB
Fault Indicator Output for Channel B. This open-drain output goes low when channel B is in
thermal shutdown or in undervoltage lockout or in a sustained (>20ms) current-limit or short-circuit
condition.
10
ADJB
Current-Limit Adjust for Channel B. When operating from auxiliary input, adjust the current limit by
connecting a resistor from ADJB to GND as shown in
Programmable Current Limit
.
11, 12
OUTB1, OUTB2
Power Output B. Connect both OUTB_ pins together. Connect a 1μF or greater capacitor from
OUTB_ to ground. Load condition may require additional bulk capacitance.
13, 14
OUTA1, OUTA2
Power Output A. Connect both OUTA_ pins together. Connect a 1μF or greater capacitor from
OUTA_ to ground. Load condition may require additional bulk capacitance.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1838EEE | 功能描述:電源開關 IC - USB Dual USB Switch w/Fault Blank RoHS:否 制造商:Micrel 電源電壓-最小:2.7 V 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-8 封裝:Tube |
| MAX1838EEE+ | 功能描述:電源開關 IC - USB Dual USB Switch w/Fault Blank RoHS:否 制造商:Micrel 電源電壓-最小:2.7 V 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-8 封裝:Tube |
| MAX1838EEE+T | 功能描述:電源開關 IC - USB Dual USB Switch w/Fault Blank RoHS:否 制造商:Micrel 電源電壓-最小:2.7 V 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-8 封裝:Tube |
| MAX1838EEE-T | 功能描述:電源開關 IC - USB Dual USB Switch w/Fault Blank RoHS:否 制造商:Micrel 電源電壓-最小:2.7 V 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-8 封裝:Tube |
| MAX1839EEP | 功能描述:顯示驅動器和控制器 RoHS:否 制造商:Panasonic Electronic Components 工作電源電壓:2.7 V to 5.5 V 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Reel |
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