ncp1091 ON Semiconductor, ncp1091 Datasheet - Page 2

• Manufacturer Part Number: ncp1091
• Description: Ncp1090, Ncp1091, Ncp1092 Integrated Ieee 802.3af Poe-pd Interface Controller
• Manufacturer: ON Semiconductor

VPORTN
VPORTP
INRUSH
CLASS
DET
CURRENT LIMIT
CLASSIFICATION
OPERATIONAL
INRUSH &
DETECTION
Figure 1. NCP1090/91/92 Functional Block Diagram
CONTROL & CURRENT
HOT SWAP SWITCH
VPORT
MONITOR
REFERENCE
LIMIT BLOCKS
INTERNAL
VOLTAGE
SUPPLY
&
http://onsemi.com
2
POWER GOOD
INDICATOR
(AUX supply priority)
SHUTDOWN
IEEE Interface
THERMAL
SELECTION
EXTERNAL
Shutdown
UVLO
NCP1092 only
NCP1091 only
AUX
RTN
UVLO
PGOOD