參數(shù)資料
型號(hào)： LM5071MT-80
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 穩(wěn)壓器
英文描述： Power Over Ethernet PD Controller with Auxiliary Power Power Over Ethernet PD Controller with Auxiliary Power
中文描述： SWITCHING CONTROLLER, 665 kHz SWITCHING FREQ-MAX, PDSO16
封裝： PLASTIC, TSSOP-16
文件頁(yè)數(shù)： 4/18頁(yè)
文件大?。?/td> 857K
代理商： LM5071MT-80
Absolute Maximum Ratings
(Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
V
IN
,RTN to V
EE
RSIG to V
IN
AUX to V
EE
UVLO
RCLASS to V
EE
ARTN to RTN
V
CC
, OUT to ARTN
All other inputs to ARTN
-0.3V to 80V
-12V to 0V
-0.3V to 57V
-0.3V to 13V
-0.3V to 7V
-0.3V to 0.3V
-0.3V to 16V
-0.3V to 7V
ESD Rating
Human Body Model
Lead Temperature (Note 2)
Wave (4 seconds)
Infrared (10 seconds)
Vapor Phase (75 seconds)
2000V
260C
240C
219C
Operating Ratings
V
IN
voltage
External voltage applied to V
CC
1.8V to 60V
8.1V to 15V
Electrical Characteristics
(Note 3)
Specifications in standard type face are for T
J
= +25C and those in
boldface type
apply over the full operating junction tem-
perature range. Unless otherwise specified: V
IN
= 48V, V
CC
= 10V, RT = 30.3k
.
Symbol
Parameter
Powered Interface
IOS
Offset Current
V
IN
<
10.0V
VCLSS(ON)
Signature Resistor Disable /
Classification Current Turn On
VCLSS(OFF)
Classification Current Turn Off
V
IN
with respect to V
EE
Classification Voltage
With respect to V
EE
ICLASS
Supply Current During
Classification
IDC
Supply Current During Normal
Operation
UVLO Pin Reference Voltage
V
IN
>
27V
UVLO Hysteresis Current
V
IN
>
UVLO
Softstart Release
RTN falling with respect to V
EE
Softstart Release Hysteresis
RTN rising with respect to V
EE
RDS(ON)
PowerFET Resistance
I = 350mA,
V
IN
= 48V
ILEAK
SMPS Bias Current
V
EE
= 0V, V
IN
= RTN = 57V
AUX Pin Threshold
AUX pin rising with respect to
V
EE
AUX Pin Threshold Hysteresis
AUX pin falling with respect to
V
EE
ZAUX
AUX Pin Input Impedance
AUX = 0.5V
I
INRUSH
Inrush Current Limit
V
EE
= 0V, RTN = 3.0V
ILIM
DC Current Limit
V
EE
= 0V, RTN = 3.0V,
Temp = 0C to 85C
ILIM
DC Current Limit
V
EE
= 0V, RTN = 3.0V,
Temp = -40C to 125C
Startup Regulator
VinMin
Operational VIN Input Voltage
AUX = 5V
VccReg
V
CC
Regulation
Open ckt
V
CC
Current Limit
(Note 4)
Conditions
Min
Typ
Max
Units
10
12.5
uA
V
V
IN
with respect to V
EE
10.0
11.5
23.5
1.43
25.0
1.5
0.5
26.5
1.57
1.5
V
V
V
IN
=17V
mA
OUT floating
1
1.9
mA
1.95
8.0
1.2
0.8
2.00
10
1.45
1.1
1
2.05
11.5
1.7
1.3
2.2
V
uA
V
V
100
2.65
uA
V
2.4
2.5
0.4
0.5
0.6
V
350
100
390
k
mA
mA
70
350
130
420
325
390
420
mA
9.5
7.5
15
V
V
7.8
20
8.1
mA
L
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