MAX5944 MAXIM [Maxim Integrated Products], MAX5944 Datasheet - Page 7

• Manufacturer Part Number: MAX5944
• Description: Dual FireWire Current Limiter and Low-Drop ORing
• Manufacturer: MAXIM [Maxim Integrated Products]

(V
IN_
= +12V, T
Dual FireWire Current Limiter and Low-Drop
A
= +25°C, unless otherwise noted.)
_______________________________________________________________________________________
V
V
V
V
INA
INB
INA
INB
ORing SWITCHOVER WAVEFORM
ORing SWITCHOVER WAVEFORM
= 12V
= 12.8V
= 12V
= 13V
(V
INB
FALLING BELOW V
200µs/div
20µs/div
V
C
V
C
ONA
ONB
OUT
OUT
RISING = 12V
= 0
FALLING = 12V
= 0
ACTIVE PORT (CURRENT-LIMIT TIMEOUT)
HOT PLUG-IN LOAD CAPACITANCE INTO
C
INA
LOAD
MAX5944 toc18
MAX5944 toc20
Typical Operating Characteristics (continued)
)
= 470µF
V
1V/div
I
500mA/div
I
500mA/div
V
1V/div
I
500mA/div
I
500mA/div
INA
INB
INA
INB
OUT
OUT
400µs/div
ORing Switch Controller
V
V
C
INA
INB
LOAD
HOT PLUG-IN LOAD CAPACITANCE
ORing SWITCHOVER WAVEFORM
= 12V
= 13V
MAX5944 toc22
INTO ACTIVE PORT (NO FAULT)
= 220µF
(V
INB
RISING ABOVE V
V
10V/div
I
1A/div
V
10V/div
V
10V/div
IN
FAULT
GATE2
OUT
400µs/div
10µs/div
V
C
ONB
OUT
RISING = 12V
= 0
INA
MAX5944 toc19
MAX5944 toc21
)
V
1V/div
I
500mA/div
I
500mA/div
V
10V/div
I
2A/div
V
10V/div
V
10V/div
INA
INB
IN
OUT
FAULT
GATE2
OUT
7