Rainbow Electronics MAX6869 - Manual (Page 5)

MAX6854–MAX6869
Nanopower µP Supervisory Circuits with
Optional Manual Reset, Watchdog Timer
_______________________________________________________________________________________ 5
OUTPUT LOW VOLTAGE
vs. SINK CURRENT
MAX6854 toc08
I SINK (µA)
V
OL
(V)
4000 3000 2000 1000
0.05
0.10
0.15
0.20
0.25
0.30
0
0 5000
V CC = 1.8V
V CC = 3.3V
V CC = 2.5V
OUTPUT HIGH VOLTAGE
vs. SOURCE CURRENT
MAX6854 toc09
I SOURCE (µA)
OUTPUT HIGH VOLTAGE (V
CC
- V
OH
) (V)
800 600 400 200
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
0.50
0
0 1000
V CC = 1.8V
V CC = 3.3V
V CC = 2.5V
SUPPLY CURRENT vs. WATCHDOG
SWITCHING FREQUENCY
MAX6854 toc10
WATCHDOG SWITCHING FREQUENCY (Hz)
SUPPLY CURRENT (
µ
A)
1M 100k 10k 1k 100
1
10
100
0.1
10 10M
V CC = 2.5V
V CC TO RESET DELAY
MAX6854 toc11
10µs/div
200mV/div
1.7V
1.5V
V CC
RESET
0
1V/div
V TH = 1.575V
t RD
MANUAL RESET DELAY
MAX6854 toc12
200ns/div
1V/div
MR
RESET
1V/div
t
MRD
Typical Operating Characteristics (continued)
(V
CC
= +2.5V, T
A
= +25°C, unless otherwise noted.)