Typical operating characteristics (continued) – Rainbow Electronics MAX4987BE User Manual
Page 4
MAX4987AE/MAX4987BE
Overvoltage-Protection Controller
with USB ESD Protection
4
_______________________________________________________________________________________
Typical Operating Characteristics (continued)
(T
A
= +25°C, unless otherwise noted.)
0.990
0.996
0.994
0.992
0.998
1.000
1.002
1.004
1.006
1.008
1.010
-40
10
-15
35
60
85
NORMALIZED OVLO THRESHOLD
vs. TEMPERATURE
MAX4987AE/BE toc04
TEMPERATURE (
°C)
NORMALIZED OVLO THRESHOLD (V)
0.80
0.92
0.88
0.84
0.96
1.00
1.04
1.08
1.12
1.16
1.20
-40
10
-15
35
60
85
NORMALIZED CURRENT LIMIT
vs. TEMPERATURE
MAX4987AE/BE toc05
TEMPERATURE (
°C)
CURRENT LIMIT (%)
0
2.0
1.0
3.0
4.0
5.0
-40
85
TURN-ON TIME
vs. TEMPERATURE
MAX4987AE/BE toc06
TEMPERATURE (
°C)
TURN ON TIME (ms)
10
-15
35
60
20.0
30.0
25.0
40.0
35.0
45.0
50.0
-40
85
DEBOUNCE TIME
vs. TEMPERATURE
MAX4987AE/BE toc07
TEMPERATURE (
°C)
DEBOUNCE TIME (ms)
10
-15
35
60
UNDERVOLTAGE FAULT RESPONSE
MAX4987AE/BE toc10
4
μs/div
V
IN
2V/div
5
2
0
0
0
V
OUT
2V/div
I
OUT
1A/div
V
ACOK
5V/div
POWER-UP RESPONSE
MAX4987AE/BE toc08
10ms/div
V
IN
5V/div
V
OUT
5V/div
I
OUT
1A/div
V
ACOK
5V/div
OVERVOLTAGE FAULT RESPONSE
MAX4987AE/BE toc09
2
μs/div
V
IN
5V/div
8V
5V
8V
5V
0
0
0
V
OUT
5V/div
I
OUT
1A/div
V
ACOK
5V/div
SHORT-CIRCUIT FAULT RESPONSE
MAX4987AE/BE toc11
10
μs/div
V
IN
5V/div
0
0
0
0
V
OUT
5V/div
I
OUT
1A/div
V
ACOK
5V/div
C
IN
= 100
μF