SMH4814 Datasheet, PDF (3/44 Pages) Summit Microelectronics, Inc. – Dual Feed Active-ORing Programmable Hot Swap Controller

INTERNAL FUNCTIONAL BLOCK DIAGRAM
V12
5V_CAP
CBSENSE
DRAIN_SENSE
SLEW
VGATE_HS
Voltage
Regulator
and
Reference
Generator
CB Sense
and Gate
Control
E² Memory
Configuration, Status,
and Command Registers
Time
Slot and
PUP
Control
SCL
SDA
I2C Interface
Virtual Address A2, A1
Programmable Fault
Conditions
PUP_A
Polarity
PUP_B
Polarity
PUP_C
Polarity
PUP_D
Polarity
ENTS
PD0
PD1
UV
OV
+
2.5V Ref
-
+
Prog Ref
-
Prog Hyst
+
Prog Ref
-
Prog Hyst
RESET#
Glitch
Filter
Summit Microelectronics, Inc
PO
Filter
Glitch
Filter
UV/OV
Filter
Fault
Latch
Duty Cycle
Timer
Figure 2. Block Diagram
2080 2.0 07/21/05
SMH4814
Preliminary Information
Supply
Arbitration
PUP_A
FB_A
PUP_B
FB_B
PUP_C
FB_C
PUP_D
FB_D
FEED_A
FEED_B
GATE_A
GATE_B
FAULT#
3