Typical operating characteristics (continued) – Rainbow Electronics MAX5943 User Manual
Page 6
MAX5943
FireWire Current Limiter and Low-Drop
ORing Switch Controller
6
_______________________________________________________________________________________
Typical Operating Characteristics (continued)
(V
IN
= +12V, T
A
= +25°C, unless otherwise noted.)
GATE2 DRIVE VOLTAGE
vs. TEMPERATURE
MAX5943 toc10
TEMPERATURE (°C)
GATE2 DRIVE VOLTAGE (V)
60
35
10
-15
5.203
5.206
5.209
5.212
5.215
5.218
5.221
5.224
5.227
5.230
5.200
-40
85
ON HIGH VOLTAGE vs. TEMPERATURE
MAX5943 toc11
TEMPERATURE (°C)
ON HIGH VOLTAGE (V)
60
35
10
-15
1.252
1.254
1.256
1.258
1.260
1.250
-40
85
ON LOW VOLTAGE vs. TEMPERATURE
MAX5943 toc12
TEMPERATURE (°C)
ON LOW VOLTAGE (V)
60
35
10
-15
-40
85
1.182
1.184
1.186
1.188
1.190
1.192
1.194
1.196
1.198
1.200
1.180
FAULT LOW VOLTAGE
vs. TEMPERATURE
MAX5943 toc13
TEMPERATURE (°C)
FAULT LOW VOLTAGE (mV)
60
35
10
-15
-40
85
20
40
60
80
100
120
140
160
180
200
0
I
FAULT
= 5mA
ORing THRESHOLD RESPONSE TIME
MAX5943 toc14
I
IN
500mA/div
V
OUT
5V/div
(V
GATE
- V
SENSE
)
5V/div
V
IN
10V/div
100µs/div
OR_ADJ = IN
TURN-OFF RESPONSE TIME
MAX5943 toc15
I
IN
1A/div
V
OUT
10V/div
V
GATE2
10V/div
V
ON
2V/div
200ns/div
MAX5943A SHORT-CIRCUIT EVENT
(V
IN
= 37V)
MAX5943 toc16
I
IN
1A/div
V
OUT
50V/div
V
GATE2
50V/div
V
IN
50V/div
400µs/div
TIM = IN
ILIM = GND
V
FAULT
50V/div