MAX5953A MAXIM [Maxim Integrated Products], MAX5953A Datasheet - Page 7

• Manufacturer Part Number: MAX5953A
• Description: IEEE 802.3af PD Interface and PWM Controllers with Integrated Power MOSFETs
• Manufacturer: MAXIM [Maxim Integrated Products]

(V
C
at T
IEEE 802.3af PD Interface and PWM Controllers
1000
REGOUT
-0.5
-1.0
-1.5
-2.0
-2.5
-3.0
-3.5
-4.0
IN
100
0.1
10
0.5
0.4
0.3
0.2
0.1
J
0
1
0
= (V+ - V
= +25°C. All voltages are referenced to V
0
0
0
R
DISC
V
OUT
= 2.2µF, R
= 25.5kΩ
= 48V
INPUT OFFSET CURRENT
25
2
2
OUT LEAKAGE CURRENT
EE
DETECTION CURRENT
vs. INPUT VOLTAGE
vs. INPUT VOLTAGE
vs. TEMPERATURE
) = 48V, GATE = PGOOD = unconnected, GND connected to OUT, HVIN connected to V+, UVLO = V
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
TEMPERATURE (°C)
50
4
4
RTCT
I
_______________________________________________________________________________________
IN
+ I
RDISC
75
6
6
= 25kΩ, C
100
8
8
RTCT
125
10
10
= 100pF, C
with Integrated Power MOSFETs
100mA/div
V
50V/div
PGOOD
50V/div
I
OUT
INRUSH
5V/div
V
EE
1.010
1.008
1.006
1.004
1.002
1.000
0.998
0.996
0.994
0.992
0.990
GATE
V
TO
50
45
40
35
30
25
20
15
10
EE
, unless otherwise noted.)
5
0
0
0
BST
INRUSH CURRENT CONTROL
CLASSIFICATION CURRENT
5
25
= 0.22µF, T
vs. INPUT VOLTAGE
NORMALIZED UVLO
vs. TEMPERATURE
INPUT VOLTAGE (V)
10
TEMPERATURE (°C)
(V
50
IN
4ms/div
CLASS 4
CLASS 3
15
= 48V)
CLASS 2
CLASS 0
CLASS 1
J
Typical Operating Characteristics
75
= 0°C to +125°C, unless otherwise noted. Typical values are
20
MAX5953A/B/C/D toc08
100
25
30
125
0V
0V
0A
0V
1.2825
1.2800
1.2775
1.2750
1.2725
250
200
150
100
3.5
3.0
2.5
2.0
1.5
1.0
0.5
50
0
0
0
0
0
DCUVLO RISING
RESISTANCE vs. INPUT CURRENT
EFFECTIVE DIFFERENTIAL INPUT
PGOOD OUTPUT LOW VOLTAGE
25
2
DCUVLO THRESHOLD
5
vs. TEMPERATURE
INPUT VOLTAGE (V)
TEMPERATURE (°C)
vs. CURRENT
50
4
I
SINK
EE
10
(mA)
, C
75
6
INBIAS
15
100
8
= 1µF,
125
10
20
7