max5965a Maxim Integrated Products, Inc., max5965a Datasheet - Page 14

• Manufacturer Part Number: max5965a
• Description: High-power, Quad, Monolithic, Pse Controllers For Power Over Ethernet
• Manufacturer: Maxim Integrated Products, Inc.

High-Power, Quad, Monolithic, PSE Controllers
for Power over Ethernet
14
MIDSPAN
RESET
AGND
AUTO
INT
V
A0
A1
A2
A3
EE
______________________________________________________________________________________
V
DD
*AC DETECTION ONLY FOR THE MAX5965B.
V
DGND
DD
MAX5965A/MAX5965B
SCL
MONITOR
ANALOG
SUPPLY
REGISTER FILE
BIAS/
THREE-WIRE
INTERFACE
SERIAL
SDAIN SDAOUT
PORT
CENTRAL LOGIC UNIT
(CLU)
+10V ANALOG
+5V DIG
VOLTAGE
REFERENCES
CURRENT
REFERENCES
SHD_
MACHINE
STATE
PORT
(SM)
OSCILLATOR
MONITOR
REGISTER
FILE
CURRENT
MEASUREMENT
OPEN CIRCUIT
9-BIT
ADC
AC DISCONNECT
(OC)
OSC
SIGNAL
(ACD)
REFERENCE
DGND
CURRENT
ACD
A = 3
DETECTION*
AC
LIMIT (ILIM)
CURRENT
VOLTAGE PROBING
CURRENT-LIMIT
CLASSIFICATION
DETECTION/
4mV
CONTROL
ACD_ENABLE
PWR_EN
AND
SM
OVERCURRENT
CURRENT-LIMIT
(OVC)
DISCHARGE
DETECTOR
CONTROL
FAST
CONVERTER
9-BIT ADC
182mV
Functional Diagram
100mA
MAX
CURRENT SENSING
90μA
10V
212mV
50μA
FOLDBACK
VOLTAGE
SENSING
13V CLAMP
CONTROL
DET_
OUT_
GATE_
SENSE_