Datasheet

MAX1823/MAX1823A/MAX1823B/MAX1823H
Dual USB Switch with Fault
Blanking and Autoreset
_______________________________________________________________________________________ 7
0
10
30
20
40
50
MAX1823 toc13
INPUT VOLTAGE (V)
AUTORESET CURRENT (mA)
3.6 5.24.4 6.0
AUTORESET CURRENT vs. INPUT VOLTAGE
(MAX1823/MAX1823H)
T
A
= +25°C
T
A
= -40°C
T
A
= +85°C
25
27
29
33
35
31
37
39
MAX1823 toc14
INPUT VOLTAGE (V)
AUTORESET CURRENT (mA)
3.6 5.24.4 6.0
AUTORESET CURRENT vs. INPUT VOLTAGE
(MAX1823A/MAX1823B)
T
A
= +25°C
T
A
= +85°C
T
A
= -40°C
10ms/div
OVERLOAD RESPONSE INTO 2.5Ω
(MAX1823/MAX1823H)
A: V
IN_
, 5V/div
B: V
OUTA
, 5V/div
C: V
FAULTA
, 5V/div
D: I
OUTA
, 1A/div
A
B
D
C
MAX1823 toc15
5V
0
0
0
10ms/div
OVERLOAD RESPONSE INTO 2.5Ω
(MAX1823A/MAX1823B ONLY)
A: V
IN_
, 5V/div
B: V
OUTA
, 5V/div
C: V
FAULTA
, 5V/div
D: I
OUTA
, 1A/div
A
B
D
C
MAX1823 toc16
5V
0
0
0
500
µs/div
OVERLOAD RESPONSE INTO 2.5Ω
(EXPANDED TIME SCALE)
A: V
IN_
, 5V/div
B: V
OUTA
, 5V/div
A
B
D
C
MAX1823 toc17
5V
0
0
0
C: V
FAULTA
, 5V/div
D: I
OUTA
, 1A/div
10ms/div
SHORT-CIRCUIT RESPONSE INTO 0Ω
(MAX1823/MAX1823H)
A
B
D
C
MAX1823 toc18
5V
0
0
0
C: V
FAULTA
, 5V/div
D: I
OUTA
, 1A/div
A: V
IN
_, 5V/div
B: V
OUTA
, 5V/div
10ms/div
SHORT-CIRCUIT RESPONSE INTO 0Ω
(MAX1823A/MAX1823B)
A
B
D
C
MAX1823 toc19
5V
0
0
0
C: V
FAULTA
, 5V/div
D: I
OUTA
, 2A/div
A: V
IN
_, 5V/div
B: V
OUTA
, 5V/div
500µs/div
SHORT-CIRCUIT RESPONSE INTO 0Ω
(EXPANDED TIME SCALE)
A: V
IN_
, 5V/div
B: V
OUTA
, 5V/div
A
B
D
C
MAX1823 toc20
5V
0
5V
0
C: V
FAULTA
, 5V/div
D: I
OUTA
, 2A/div
1ms/div
SWITCH TURN-ON TIME
(MAX1823/MAX1823A)
A: V
ONA
, 5V/div
B: V
OUTA
, 2V/div
A
B
MAX1823 toc21
0
0
Typical Operating Characteristics (continued)
(Circuit of Figure 1, V
IN
= V
INA
= V
INB
= 5V, ON_ = GND (MAX1823/MAX1823A), ON_ = IN_ (MAX1823B/MAX1823H), T
A
= +25°C,
unless otherwise noted.)