Typical operating characteristics (continued) – Rainbow Electronics MAX5970 User Manual
Page 6
0V to 16V, Dual Hot-Swap Controller with 10-Bit
Current and Voltage Monitor and 4 LED Drivers
MAX5970
6 ______________________________________________________________________________________
Typical Operating Characteristics (continued)
(V
IN
= 3.3V, T
A
= +25NC, unless otherwise noted.)
GATE_ DRIVE VOLTAGE vs. V
IN
MAX5970 toc04
V
IN
(V)
(V
GATE_
-
V
MON_
) (V)
14
12
10
8
6
4
2
4.90
4.95
5.00
5.05
V
MON_
= 3.3V
V
MON_
= 12V
5.10
4.85
0
16
GATE_ DRIVE CURRENT
vs. (V
GATE_
- V
MON_
)
MAX5970 toc05
(V
GATE_
- V
MON_
) (V)
GATE_ DRIVE CURRENT (µA)
4.5
4.0
3.0 3.5
1.0 1.5 2.0 2.5
0.5
1
2
3
4
5
6
7
8
9
10
0
0
5.0
GATE_ DRIVE DISCHARGE CURRENT
vs. (V
GATE_
- V
MON_
)
MAX5970 toc06
(V
GATE_
- V
MON_
) (V)
GATE_ DRIVE DISCHARGE CURRENT (A)
4.5
4.0
3.0 3.5
1.0 1.5 2.0 2.5
0.5
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0
0
5.0
SLOW COMPARATOR TURN-OFF TIME
vs. VOLTAGE OVERDRIVE
MAX5970 toc07
(V
SENSE
- V
MON_
) - V
TH,ST
(mV)
TURN-OFF TIME (ms)
4
3
2
1
0.50
1.00
1.50
2.00
2.50
3.00
0
0
5
25mV SENSE RANGE,
DAC = 191, V
TH,ST
= 9.36mv
SLOW COMPARATOR THRESHOLD
VOLTAGE ERROR vs. TEMPERATURE
MAX5970 toc08
TEMPERATURE (°C)
THRESHOLD VOLTAGE ERROR (%)
60
35
10
-15
-8
-6
-4
-2
0
2
4
6
8
10
-10
-40
85
50mV SENSE RANGE
100mV SENSE RANGE
25mV SENSE RANGE
ON_ THRESHOLD VOLTAGE
vs. TEMPERATURE
MAX5970 toc09
TEMPERATURE (°C)
ON_ THRESHOLD VOLTAGE (V)
60
35
10
-15
0.51
0.52
0.53
0.54
0.55
0.56
0.57
0.58
0.59
0.60
0.50
-40
85
RISING
FALLING
STARTUP WAVEFORM
MAX5970 toc10
V
MON_
V
ON_
2V/div
V
GATE_
5V/div
5V/div
V
PG_
5V/div
I
LOAD
2A/div
10ms/div
TURN-OFF WAVEFORM
(SLOW-COMPARATOR FAULT)
MAX5970 toc11
V
MON_
10V/div
I
LOAD
2A/div
V
GATE_
10V/div
V
FAULT
5V/div
400µs/div