Rainbow Electronics MAX5079 User Manual
Page 2
MAX5079
ORing MOSFET Controller with
Ultra-Fast 200ns Turn-Off
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
((V
IN
= 2.75V to 13.2V and V
AUXIN
= 0V) or (V
IN
= 1V and V
AUXIN
= 2.75V to 13.2V), R
STH
= open, R
FTH
= 0, V
UVLO
= 1V, V
OVI
= 0V,
T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at V
IN
= 12V and T
A
= +25°C. See the
Typical Operating Circuit.) (Note 1)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
GATE to GND ..............................................-0.3V to (V
IN
+ 8.5V)
All Other Pins to GND.............................................-0.3V to +15V
Continuous Current Into Any Pin ......................................±50mA
Continuous Power Dissipation (T
A
= +70°C)
14-Pin TSSOP (derate 9.1mW/°C above +70°C) ......727.3mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
POWER SUPPLIES
2.75
13.20
V
IN Input Voltage Range
V
IN
V
AUXIN
≥ 2.75V
1.0
13.2
V
AUXIN Input Voltage Range
V
AUXIN
0
13.2
V
(V
AUXIN
- V
IN
) High Threshold
(When GATE Connects Directly
to AUXIN) (Note 2)
V
AUXIN_
THRESHOLD
V
AUXIN
rising, I
GATE
= 10µA
4.3
4.9
5.4
V
(V
AUXIN
- V
IN
) Hysteresis (When
GATE Connects Directly To
AUXIN)
V
AUXIN_
HYSTERESIS
40
mV
IN Supply Current
I
IN
V
UVLO
= 1V, V
IN
> V
BUS
4
mA
AUXIN Leakage Current
I
LEAK_AUX
V
AUXIN
= 0V
20
µA
AUXIN Supply Current
I
AUXIN
V
UVLO
= 1V, V
AUXIN
= 13.2V, V
AUXIN
≥
V
IN
, V
AUXIN
≥ V
BUS
4
mA
BUS Leakage Current
I
LEAK_BUS
V
IN
= 13.2V, V
BUS
= 0V
1
mA
BUS Supply Current
I
BUS
V
BUS
= 13.2V, V
BUS
> V
IN
, V
BUS
>
V
AUXIN
3
mA
IN TO AUXIN SWITCHOVER
Switchover High Threshold
V
AUXIN_HIGH
(V
IN
- V
AUXIN
), V
AUXIN
falling
-60
+25
+200
mV
Switchover Low Threshold
V
AUXIN_LOW
(V
IN
- V
AUXIN
), V
AUXIN
rising
-200
-25
+50
mV
IN UNDERVOLTAGE LOCKOUT
Internal UVLO High Threshold
V
INTUVLO_HIGH
V
IN
rising, V
AUXIN
= 0V or V
AUXIN
rising, V
IN
= 0V
2.0
2.25
2.5
V
Internal UVLO Hysteresis
V
INTUVLO_HYST
V
IN
falling, V
AUXIN
= 0V or V
AUXIN
falling, V
IN
= 0V
30
mV
External UVLO Threshold
V
UVLO
V
UVLO
falling
0.568
0.6
0.632
V
External UVLO Hysteresis
V
UVLO_HYST
60
mV
External UVLO Input Bias
I
UVLO
500
nA