Datasheet

MAX4822–MAX4825
+3.3V/+5V, 8-Channel Relay Drivers with Fast
Recovery Time and Power-Save Mode
6 _______________________________________________________________________________________
OUT_ TURN-ON DELAY TIME
vs. SUPPLY VOLTAGE
MAX4822-25 toc10
SUPPLY VOLTAGE (V)
I
ON
DELAY TIME (ns)
5.14.74.33.93.53.12.7
40
60
80
100
120
140
20
2.3 5.5
OUT_ TURN-OFF DELAY TIME
vs. SUPPLY VOLTAGE
MAX4822-25 toc11
SUPPLY VOLTAGE (V)
I
OFF
DELAY TIME (ns)
5.14.74.33.93.53.12.7
600
800
1000
1200
1400
1600
400
2.3 5.5
INPUT-LOGIC THRESHOLD
vs. SUPPLY VOLTAGE
MAX4822-25 toc12
SUPPLY VOLTAGE (V)
INPUT-LOGIC THRESHOLD (V)
5.14.73.9 4.33.1 3.52.7
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
2.1
1.0
2.3 5.5
BACK EMF CLAMPING WITH
STANDARD 3V RELAY V
CC
= 3.3V
MAX4822-25 toc13
100µs/div
0V
0V
CS
5V/div
VOUT
2V/div
POWER-SAVE DELAY TIME
vs. CAPACITANCE
MAX4822-25 toc14
CAPACITANCE (nF)
t
PS
(ms)
800600200 400
5
10
15
20
30
25
35
40
0
0 1000
V
CC
= 3.3V
POWER-SAVE DELAY TIME
vs. SUPPLY VOLTAGE
MAX4822-25 toc15
SUPPLY VOLTAGE (V)
t
PS
(ms)
5.14.73.9 4.33.1 3.52.7
3.55
3.60
3.65
3.70
3.75
3.80
3.85
3.90
3.95
4.00
3.50
2.3 5.5
C
PSAVE
= 0.1µF
0.3
0.4
0.6
0.5
0.7
0.8
0 10050 150 200 250 300
OUTPUT VOLTAGE vs. OUTPUT CURRENT
IN POWER-SAVE MODE
(PSAVE REGISTER = 111)
MAX4822 toc16
OUTPUT CURRENT (mA)
OUTPUT VOLTAGE (V)
Typical Operating Characteristics (continued)
(V
CC
= 3.3V, T
A
= +25°C, unless otherwise noted.)