MAX5943 Maxim Integrated Products, MAX5943 Datasheet - Page 18

• Manufacturer Part Number: MAX5943
• Description: FireWire Current Limiter and Low-Drop ORing Switch Controller
• Manufacturer: Maxim Integrated Products

FireWire Current Limiter and Low-Drop
ORing Switch Controller
Figure 13. Two-Port FireWire Power Provider Using MAX5943A and MAX5944
18
BATTERY-POWER
______________________________________________________________________________________
SOURCE
SOURCE
POWER
CABLE
POWER OUT
CABLE
ON
PHY
SLEEP
NOT
ON
ON
TIM
TIM
ILIM
ILIM
IN
IN
15mΩ
LATCH
15mΩ
LATCH
SENSE GATE1
SENSE GATE1
MAX5943A
MAX5943A
GND
GND
SI7958DP
SI7958DP
FB
BST
LX
ONQ1
ONQ1
GND
MAX5033
SI7958DP
SI7958DP
GATE2 OUT
GATE2 OUT
OR_ADJ
OR_ADJ
SGND
FAULT
FAULT
V
CURRENT-LIMIT
ON
VD
IN
SENSE
IN4148
ONA
ONQ1
GND
ONB
INA
INB
IN4148
30mΩ
30mΩ
SENSEB GATE1B
SENSEA GATE1A
MAX5944
SI7958DP
IRF7478
SI7958DP
GATE2B OUTB
IRF7478
GATE2A OUTA
FAULTA
FAULTB
IN4148
IN4148
PORT 1
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SENSE
PORT 0
SENSE
CPA SENSE
PORT 0
PORT 1