MAX5079 Datasheet, PDF (2/18 Pages) Maxim Integrated Products – ORing MOSFET Controller with Ultra-Fast 200ns Turn-Off

ORing MOSFET Controller with
Ultra-Fast 200ns Turn-Off
ABSOLUTE MAXIMUM RATINGS
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
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.
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)
PARAMETER
POWER SUPPLIES
IN Input Voltage Range
AUXIN Input Voltage Range
(V_AUXIN - V_IN) High Threshold
(When GATE Connects Directly
to AUXIN) (Note 2)
SYMBOL
CONDITIONS
V_IN
V_AUXIN
V_{AUXIN_}
THRESHOLD
V_AUXIN ≥ 2.75V
V_AUXIN rising, I_GATE = 10µA
MIN TYP MAX UNITS
2.75
13.20
V
1.0
13.2
V
0
13.2
V
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
AUXIN Leakage Current
I_IN
I_{LEAK_AUX}
V_UVLO = 1V, V_IN > V_BUS
V_AUXIN = 0V
4
mA
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
External UVLO Threshold
External UVLO Hysteresis
External UVLO Input Bias
V_{INTUVLO_HYST}
V_UVLO
V_{UVLO_HYST}
I_UVLO
V_IN falling, V_AUXIN = 0V or V_AUXIN
falling, V_IN = 0V
V_UVLO falling
30
mV
0.568 0.6 0.632
V
60
mV
500
nA
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