參數(shù)資料
型號: MAX1931
廠商: Maxim Integrated Products, Inc.
英文描述: Current-Limited Switch for Single USB Port
中文描述: 限流開關(guān),支持單USB口
文件頁數(shù): 5/8頁
文件大小: 214K
代理商: MAX1931
M
Current-Limited Switch for Single USB Port
_______________________________________________________________________________________
5
Typical Operating Characteristics (continued)
(V
IN
= 5V, T
A
= +25
°
C, unless otherwise noted.)
4
3
1
2
2ms/div
M
CURRENT-LIMIT AND FAULT RESPONSE
CH1 = V
, 200mV/div, AC-COUPLED; CH2 = V
,
5V/div; CH3 = V
FAULT
, 5V/div; CH4 = I
OUT
, 500mA/div
4
10
μ
s/div
3
1
2
CURRENT-LIMIT RESPONSE
M
CH1 = V
, 200mV/div, AC-COUPLED; CH2 = V
OUT
,
5V/div; CH3 = V
FAULT
, 5V/div; CH4 = I
OUT
, 1A/div
4
3
2
1
SWITCH TURN-ON TIME
M
CH1 = V
OUT
, 5V/div; CH2 = V
ON
, 5V/div;
CH3 = V
FAULT
, 5V/div; CH4 = I
OUT
, 200mA/div
20
μ
s/div
0
2
6
4
10
8
12
-40
0
20
-20
40
60
80
100
FAULT-BLANKING TIMEOUT
vs. TEMPERATURE
M
TEMPERATURE (
°
C)
F
V
IN
= 3V OR 5V
I
OUT
= 850mA
4
3
2
1
SWITCH TURN-OFF TIME
M
CH1 = V
OUT
, 5V/div; CH2 = V
ON
, 5V/div;
CH3 = V
FAULT
, 5V/div; CH4 = I
OUT
, 200mA/div
1
μ
s/div
4
3
2
1
STARTUP TIME
(TYPICAL USB APPLICATION)
M
CH1 = V
OUT
, 5V/div; CH2 = V
ON
, 5V/div;
CH3 = I
OUT
, 500mA/div; CH4 = V
FAULT
, 5V/div
1ms/div
C
L
= 150
μ
F
R
L
= 15
RESISTOR
LOAD
CURRENT
FULL CURRENT LIMIT CHARGES CAPACITOR
FOLDBACK
CURRENT LIMIT
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