Typical operating characteristics, Electrical characteristics (continued) – Rainbow Electronics MAX5079 User Manual
Page 4
MAX5079
ORing MOSFET Controller with
Ultra-Fast 200ns Turn-Off
4
_______________________________________________________________________________________
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
).
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
External
70
Charge-Pump Frequency
f
CP
Internal, V
IN
< 5V, V
AUXIN
< 5V
1100
kHz
PROTECTION
OVI Input Bias Current
I
OVI
500
nA
OVI Threshold
V
OVI_TH
OVI rising
0.568
0.6
0.632
V
OVP Output Low Voltage
V
OVP_LOW
V
OVI
= 1V, I
SINK
= 10mA
0.2
0.4
V
OVP Leakage Current
I
OVP_LEAK
V
IN
= 2.75V, V
OVP
= 13.2V
1
µA
PGOOD Leakage Current
I
PG_LEAK
V
PGOOD
= 13.2V
1
µA
PGOOD Output Low Voltage
V
PG_LOW
I
SINK
= 2mA
0.2
0.4
V
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)
MAX5079 toc01
TEMPERATURE (
°C)
I
AUXIN
(mA)
110
95
80
65
50
35
20
5
-10
-25
1
2
3
0
-40
125
V
AUXIN
= 5V
V
AUXIN
= 10V
V
AUXIN
= 2.7V
GATE-CHARGE CURRENT vs. V
IN
MAX5079 toc02
V
IN
(V)
I
GATE
(mA)
14
12
8
10
4
6
2
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
0
0
15
13
11
7
9
3
5
1
T
A
= +25
°C
T
A
= -40
°C
T
A
= +125
°C
T
A
= +85
°C
SLOW-COMPARATOR REVERSE VOLTAGE
THRESHOLD (V
STH
vs. R
STH
)
MAX5079 toc03
R
STH
(k
Ω)
V
STH
(V)
100
0.02
0.04
0.06
0.08
0.10
0.12
0.14
0.16
0.18
0.20
0
10
1000
T
A
= -40
°C, T
A
= +25
°C,
T
A
= +85
°C, T
A
= +125
°C