MAX5079_09 Datasheet, PDF (4/18 Pages) Maxim Integrated Products – ORing MOSFET Controller with Ultra-Fast 200ns Turn-Off

ORing MOSFET Controller with
Ultra-Fast 200ns Turn-Off
ELECTRICAL CHARACTERISTICS (continued)
((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
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
V_IN Switchover Hysteresis
(Note 4)
V_{IN_SOHYS}
40
mV
Charge-Pump Frequency
PROTECTION
OVI Input Bias Current
OVI Threshold
OVP Output Low Voltage
OVP Leakage Current
PGOOD Leakage Current
PGOOD Output Low Voltage
External
f_CP
Internal, V_IN < 5V, V_AUXIN < 5V
I_OVI
V_{OVI_TH}
V_{OVP_LOW}
I_{OVP_LEAK}
I_{PG_LEAK}
V_{PG_LOW}
OVI rising
V_OVI = 1V, I_SINK = 10mA
V_IN = 2.75V, V_OVP = 13.2V
V_PGOOD = 13.2V
I_SINK = 2mA
70
kHz
1100
500
nA
0.568 0.6 0.632
V
0.2
0.4
V
1
µA
1
µA
0.2
0.4
V
Note 1: All devices are production tested at +25°C. Limits over temperature are guaranteed by design.
Note 2: Threshold is reached when charge pump turns off.
Note 3: Gate discharge current is guaranteed through the testing of gate fall time.
Note 4: V_IN switchover threshold is V_IN at which the gate-drive voltage (V_GATE - V_IN) goes from 5V to 7V, V_IN rising and (V_IN ≥ V_BUS).
Typical Operating Characteristics
(T_A = +25°C, unless otherwise noted. See the Typical Operating Circuit.)
AUXIN SUPPLY CURRENT
vs. TEMPERATURE (V_IN = V_BUS = 1V)
3
V_AUXIN = 10V
2
V_AUXIN = 5V
1
V_AUXIN = 2.7V
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
GATE-CHARGE CURRENT vs. V_IN
6.0
5.5
5.0
4.5
T_A = +25°C
4.0
3.5
T_A = -40°C
3.0
T_A = +85°C
2.5
2.0
T_A = +125°C
1.5
1.0
0.5
0
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
V_IN (V)
SLOW-COMPARATOR REVERSE VOLTAGE
THRESHOLD (V_STH vs. R_STH)
0.20
0.18
T_A = -40°C, T_A = +25°C,
T_A = +85°C, T_A = +125°C
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0
10
100
1000
R_STH (kΩ)
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