MIC2358_11 Datasheet, PDF (8/29 Pages) Micrel Semiconductor – IEEE 802.3af Octal Power Sourcing Equipment Controller

Micrel, Inc.
MIC2358YLQ
DC Electrical Characteristics⁽⁴⁾
(48VS – ARTN) = 48V; TA = 25°C, unless otherwise noted. Bold values indicate specifications apply over the full operating
temperature range of 0°C < TA < +70°C, unless otherwise noted.
Symbol
Parameter
Condition
Min
Typ Max Units
Global Overvoltage Protection
VGOVP
Global Overvoltage Protection
Threshold Voltage
VGOVPHYS
OVP Threshold Hysteresis
VGUVP
Global Undervoltage
Protection Threshold Voltage
VGUVPHYS
GATEn Drive
UVP Threshold Hysteresis
VGATE
External GATE Drive Voltage
IGATEUP
GATE Pin Charge Current
IGATEDN
GATE Pin Discharge Current
IGATEOFF
GATE Pin FAULT mode Pull-
down Current
Portn Sense Input
RPORT
Port Sense Input Resistance
Portn Current Sense Rsense=1Ω
VSUOC
Start-up Current Limit
Threshold Voltage
VSSOC
Overload Current Detection
Threshold Voltage
VSC
Short-circuit Current Limit
Threshold Voltage
VDCMPSMIN
DC MPS Disconnect
Threshold Voltage
ISENSE
SENSE Pin Bias Current
Internal AC Disconnect Oscillator
fOSC
Oscillator Output Frequency
VOSCP-P
Oscillator Output Voltage
Shared Power Management (SPM)
VSPMREF
SPM Voltage Reference
ISPMREF
SPM Standard Unit Current
Input Supply voltage at which all ports
are powered off
Input Supply voltage at which all ports
report as undervoltage fault
ΔVGATE = VGATEN – ARTN
Vol = 5.0V
Portn = ON; PPn and PNn measured
to ARTN
Class 0
Class 1
Class 2
Class 3
48VS = 48.0V
RSPM = 250kΩ
4
50
0.7
408
344
92
160
344
408
5.2
79
3.25
2.45
59.3
V
1.3
V
43.5
V
0.25
V
5
V
50
µA
2.7
mA
65
mA
1
1.3 MΩ
424
442
mV
373
396
mV
102
106
mV
174
182
mV
373
396
mV
424
442
mV
8
9.8
mV
8
50
µA
86
500
Hz
4.4
10
VPP
2.5 2.55
V
10
µA
July 2010
8
M9999-070810