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MAX5953DUTM+T

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27
MAX5953A/MAX5953B/MAX5953C/MAX5953D
IEEE 802.3af PD Interface and PWM Controllers
with Integrated Power MOSFETs
_______________________________________________________________________________________ 7
DETECTION CURRENT
vs. INPUT VOLTAGE
MAX5953A/B/C/D toc01
INPUT VOLTAGE (V)
DETECTION CURRENT (mA)
8642
0.1
0.2
0.3
0.4
0.5
0
010
R
DISC
= 25.5k
Ω
I
IN
+ I
RDISC
CLASSIFICATION CURRENT
vs. INPUT VOLTAGE
MAX5953A/B/C/D toc02
INPUT VOLTAGE (V)
CLASSIFICATION CURRENT (mA)
252015105
5
10
15
20
25
30
35
40
45
50
0
030
CLASS 4
CLASS 3
CLASS 2
CLASS 1
CLASS 0
EFFECTIVE DIFFERENTIAL INPUT
RESISTANCE vs. INPUT CURRENT
MAX5953A/B/C/D toc03
INPUT VOLTAGE (V)
EFFECTIVE DIFFERENTIAL INPUT RESISTANCE (MΩ)
8642
0.5
1.0
1.5
2.0
2.5
3.0
3.5
0
010
INPUT OFFSET CURRENT
vs. INPUT VOLTAGE
MAX5953A/B/C/D toc04
INPUT VOLTAGE (V)
INPUT OFFSET CURRENT (µA)
862 4
-3.5
-3.0
-2.5
-2.0
-1.5
-1.0
-0.5
0
-4.0
010
NORMALIZED UVLO
vs. TEMPERATURE
MAX5953A/B/C/D toc05
TEMPERATURE (
°
C)
NORMALIZED UVLO
100755025
0.992
0.994
0.996
0.998
1.000
1.002
1.004
1.006
1.008
1.010
0.990
0125
PGOOD OUTPUT LOW VOLTAGE
vs. CURRENT
MAX5953A/B/C/D toc06
I
SINK
(mA)
V
PGOOD
(mV)
15105
50
100
150
200
250
0
020
OUT LEAKAGE CURRENT
vs. TEMPERATURE
MAX5953A/B/C/D toc07
TEMPERATURE (°C)
OUT LEAKAGE CURRENT (nA)
100755025
1
10
100
1000
0.1
0125
V
OUT
= 48V
INRUSH CURRENT CONTROL
(V
IN
= 48V)
MAX5953A/B/C/D toc08
4ms/div
V
OUT
TO
V
EE
50V/div
V
GATE
5V/div
0V
0V
0A
0V
I
INRUSH
100mA/div
PGOOD
50V/div
DCUVLO THRESHOLD
vs. TEMPERATURE
MAX5953A/B/C/D toc09
TEMPERATURE (°C)
V
DCUVLO
(V)
100755025
1.2750
1.2775
1.2800
1.2825
1.2725
0 125
DCUVLO RISING
Typical Operating Characteristics
(V
IN
= (V+ - V
EE
) = 48V, GATE = PGOOD = unconnected, GND connected to OUT, HVIN connected to V+, UVLO = V
EE
, C
INBIAS
= 1µF,
C
REGOUT
= 2.2µF, R
RTCT
= 25kΩ, C
RTCT
= 100pF, C
BST
= 0.22µF, T
J
= 0°C to +125°C, unless otherwise noted. Typical values are
at T
J
= +25°C. All voltages are referenced to V
EE
, unless otherwise noted.)
MAX5953A/MAX5953B/MAX5953C/MAX5953D
IEEE 802.3af PD Interface and PWM Controllers
with Integrated Power MOSFETs
8 _______________________________________________________________________________________
Typical Operating Characteristics (continued)
(V
IN
= (V+ - V
EE
) = 48V, GATE = PGOOD = unconnected, GND connected to OUT, HVIN connected to V+, UVLO = V
EE
, C
INBIAS
= 1µF,
C
REGOUT
= 2.2µF, R
RTCT
= 25kΩ, C
RTCT
= 100pF, C
BST
= 0.22µF, T
J
= 0°C to +125°C, unless otherwise noted. Typical values are
at T
J
= +25°C. All voltages are referenced to V
EE
, unless otherwise noted.)
HVIN STANDBY CURRENT
vs. TEMPERATURE
MAX5953A/B/C/D toc10
TEMPERATURE (
°
C)
STANDBY CURRENT (µA)
100755025
35
70
105
140
175
210
245
280
315
350
385
0
0 125
f
HVIN
V
DCUVLO
= 0V
HVIN INPUT CURRENT
vs. TEMPERATURE
MAX5953A/B/C/D toc11
TEMPERATURE (
°
C)
I
HVIN
(mA)
1007525 50
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8
4.0
0 125
INBIAS FLOATING
V
HVIN
= 76V
REGOUT = DRVIN
HVIN AND INBIAS INPUT CURRENT
vs. TEMPERATURE
MAX5953A/B/C/D toc12
TEMPERATURE (
°
C)
INPUT CURRENT (mA)
100755025
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
0
0125
I
INBIAS
I
HVIN
V
HVIN
= V
INBIAS
= 76V
REGOUT VOLTAGE
vs. INPUT VOLTAGE
MAX5953A/B/C/D toc13
V
HIN
(V)
V
REGOUT
(V)
63503724
8.76
8.77
8.78
8.79
8.80
8.81
8.82
8.83
8.84
8.85
8.75
11 76
INBIAS FLOATING
GND = V
EE
REGOUT VOLTAGE
vs. TEMPERATURE
MAX5953A/B/C/D toc14
TEMPERATURE (
°
C)
V
REGOUT
(V)
100755025
8.72
8.74
8.76
8.78
8.80
8.82
8.84
8.86
8.88
8.90
8.70
0 125
V
HVIN
= 48V
INBIAS FLOATING
REGOUT VOLTAGE
vs. LOAD CURRENT
MAX5953A/B/C/D toc15
I
REGOUT
(mA)
V
REGOUT
(V)
252015105
8.70
8.75
8.80
8.85
8.65
030
V
HVIN
= 15V
INBIAS FLOATING
GND = V
EE
REGOUT VOLTAGE
vs. INPUT VOLTAGE
MAX5953A/B/C/D toc16
V
HIN
(V)
V
REGOUT
(V)
63503724
10.62
10.64
10.66
10.68
10.70
10.60
11 76
HVIN = INBIAS
GND = V
EE
REGOUT VOLTAGE
vs. TEMPERATURE
MAX5953A/B/C/D toc17
TEMPERATURE (°C)
V
REGOUT
(V)
100755025
10.66
10.67
10.68
10.69
10.70
10.71
10.72
10.73
10.74
10.75
10.65
0125
V
HVIN
= V
INBIAS
= 48V
REGOUT VOLTAGE
vs. LOAD CURRENT
MAX5953A/B/C/D toc18
I
REGOUT
(mA)
V
REGOUT
(V)
252015105
10.55
10.60
10.65
10.70
10.75
10.50
030
V
HVIN
= V
INBIAS
= 15V
GND = V
EE
MAX5953A/MAX5953B/MAX5953C/MAX5953D
IEEE 802.3af PD Interface and PWM Controllers
with Integrated Power MOSFETs
_______________________________________________________________________________________ 9
REGOUT UVLO VOLTAGE
vs. TEMPERATURE
MAX5953A/B/C/D toc19
TEMPERATURE (
°
C)
REGOUT UVLO VOLTAGE (V)
100755025
6.2
6.4
6.6
6.8
7.0
7.2
7.4
6.0
0 125
RISING
FALLING
OPERATING FREQUENCY
vs. TEMPERATURE
MAX5953A/B/C/D toc20
TEMPERATURE (
°
C)
OPERATING FREQUENCY (kHz)
1007525 50
250
300
350
400
450
500
550
600
200
0125
R
RTCT
= 12k
Ω
C
RTCT
= 100pF
R
RTCT
= 24.3k
Ω
C
RTCT
= 100pF
SOFT-START CURRENT
vs. TEMPERATURE
MAX5953A/B/C/D toc21
TEMPERATURE (
°
C)
SOFT-START CURRENT (µA)
100755025
31.5
32.0
32.5
33.0
33.5
34.0
31.0
0 125
MINIMUM RCFF AND OPTO LEVELS
vs. TEMPERATURE
MAX5953A/B/C/D toc22
TEMPERATURE (
°
C)
V
RCFF
(V), V
OPTO
(V)
100755025
1.25
1.50
1.75
2.00
2.25
2.50
2.75
1.00
0 125
RCFF
OPTO
CURRENT-LIMIT COMPARATOR
THRESHOLD vs. TEMPERATURE
MAX5953A/B/C/D toc23
TEMPERATURE (
°
C)
V
REGOUT
(V)
100755025
0.151
0.152
0.153
0.154
0.155
0.156
0.157
0.158
0.159
0.160
0.150
0125
HVIN RISING
PPWM TO XFRMRL SKEW
vs. TEMPERATURE
MAX5953A/B/C/D toc24
TEMPERATURE (
°
C)
PPWM TO XFRMRL SKEW (ns)
100755025
91
92
93
94
95
96
97
98
99
100
90
0125
FLTINT CURRENT
vs. TEMPERATURE
MAX5953A/B/C/D toc25
TEMPERATURE (°C)
I
FLTINT
(µA)
100755025
76
77
78
79
80
81
82
83
84
85
75
0 125
FLTINT SHUTDOWN VOLTAGE
vs. TEMPERATURE
MAX5953A/B/C/D toc26
TEMPERATURE (°C)
V
FLTINT
(V)
100755025
2.0
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
1.9
0125
RISING
FALLING
POWER MOSFETS R
DS(ON)
vs. TEMPERATURE
MAX5953A/B/C/D toc27
TEMPERATURE (°C)
R
DS(ON)
(Ω)
100755025
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0
0 125
Typical Operating Characteristics (continued)
(V
IN
= (V+ - V
EE
) = 48V, GATE = PGOOD = unconnected, GND connected to OUT, HVIN connected to V+, UVLO = V
EE
, C
INBIAS
= 1µF,
C
REGOUT
= 2.2µF, R
RTCT
= 25kΩ, C
RTCT
= 100pF, C
BST
= 0.22µF, T
J
= 0°C to +125°C, unless otherwise noted. Typical values are
at T
J
= +25°C. All voltages are referenced to V
EE
, unless otherwise noted.)
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27

MAX5953DUTM+T

Mfr. #:
Buy MAX5953DUTM+T
Manufacturer:
Maxim Integrated
Description:
Switching Controllers IEEE 802.3af PD Int & PWM Controlle
Lifecycle:
New from this manufacturer.
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