MAX5953A MAXIM [Maxim Integrated Products], MAX5953A Datasheet - Page 3

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

ELECTRICAL CHARACTERISTICS (continued)
(V
otherwise noted. Typical values are at T
Default Power Turn-On/Off
Hysteresis Voltage
External UVLO Programming
Range
UVLO External Reference
Voltage
UVLO External Reference
Voltage Hysteresis
UVLO Bias Current
UVLO Input Ground-Sense
Threshold
UVLO Input Ground-Sense Glitch
Rejection
Power Turn-Off Voltage,
Undervoltage Lockout Deglitch
Time
Isolation Switch n-Channel
MOSFET On-Resistance
Isolation Switch n-Channel
MOSFET Off-Threshold Voltage
GATE Pulldown Switch
Resistance
GATE Charging Current
GATE High Voltage
PGOOD Assertion V
Threshold (Note 10)
PGOOD, PGOOD Assertion
V
PGOOD, PGOOD Output Low
Voltage
PGOOD Leakage Current
PGOOD Leakage Current
IEEE 802.3af PD Interface and PWM Controllers
IN
GATE
= (V+ - V
Threshold
PARAMETER
EE
) = 48V, GATE = PGOOD = PGOOD = unconnected, GND = OUT, HVIN = V+, UVLO = V
OUT
_______________________________________________________________________________________
V
V
V
V
V
SYMBOL
HYST,UVLO
HYST,UVLO
TH,G,UVLO
t
OL,PGOOD
J
I
R
REF,UVLO
V
OFF_DLY
IN,UVLO
V
V
V
V
= +25°C. All voltages are referenced to V
I
ON,ISO
OUTEN
GATE
GSTH
GSEN
IN,EX
GATE
R
G
with Integrated Power MOSFETs
MAX5953A/MAX5953C
MAX5953B/MAX5953D
MAX5953A/MAX5953C only (Note 7)
V
Ratio to V
V
(Note 8)
V
Output current = 300mA, V
measured between OUT and V
V
output current < 1µA
Power-off mode, V
V
I
V
Hysteresis
V
Hysteresis
I
GATE = high, V+ - V
GATE = V
(Note 11)
GATE
SINK
UVLO
UVLO
IN
GATE
GATE
OUT
GATE
, V
= 2mA, V
UVLO
- V
= 1µA
- V
= 2V
- V
increasing
= 2.460V
EE
REF, UVLO
EE
EE
EE
falling (Note 9)
decreasing, V
, OUT = V+,
, PGOOD - V
increasing
CONDITIONS
OUT
IN
≤ (V+ - 5V) (Note 11)
OUT
= +12V
= 67V (Note 11)
EE
GATE
GATE
= 67V
EE
EE
= 5.75V
, unless otherwise noted.) (Note 1)
= 5.6V,
2.400
19.2
0.32
5.59
1.16
4.62
MIN
-1.5
7.1
0.5
4.5
12
50
4
EE
, T
2.460
TYP
5.76
1.23
4.76
0.6
20
38
10
70
80
J
7
= 0°C to +125°C, unless
2.522
MAX
+1.5
20.9
16.5
5.93
1.31
4.91
440
1.5
0.2
67
80
1
1
UNITS
mV
mV
mV
ms
µA
µs
µA
µA
µA
%
Ω
Ω
V
V
V
V
V
V
V
V
3