Rainbow Electronics MAX6871 - Manual (Page 7)

MAX6870/MAX6871
EEPROM-Programmable Hex/Quad
Power-Supply Sequencers/Supervisors with ADC
_______________________________________________________________________________________ 7
OUTPUT VOLTAGE HIGH vs. SOURCE CURRENT
(PUSH-PULL OUTPUT)
MAX6870/71 toc10
I
OUT
(mA)
V
OH
(V)
55 50 40 45 10 15 20 25 30 35 5
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
0
0 60
PUSH-PULL TO IN3
IN3 = 5V
PO5–PO8 (MAX6870)
PO3/PO4/ PO5 (MAX6871)
OUTPUT VOLTAGE HIGH vs. SOURCE CURRENT
(CHARGE-PUMP OUTPUT)
MAX6870/71 toc11
SOURCE CURRENT ( µA)
OUTPUT VOLTAGE HIGH (V)
4 3 2 1
3.5
4.0
4.5
5.0
5.5
6.0
3.0
0 5
MEASURED RELATIVE TO V
ABP
PO1–PO4 (MAX6870)
PO1/PO2 (MAX6871)
MR TO PO_ PROPAGATION DELAY
vs. TEMPERATURE
MAX6870/71 toc12
TEMPERATURE ( °C)
MR TO PO_ PROPAGATION DELAY (
µ
s)
60 35 -15 10
1.55
1.60
1.65
1.70
1.80
1.75
1.85
1.90
1.50
-40 85
MAXIMUM MR TRANSIENT DURATION
vs. MR THRESHOLD OVERDRIVE
MAX6870/71 toc13
MR THRESHOLD OVERDRIVE (mV)
MAXIMUM MR TRANSIENT DURATION (
µ
s)
100 10
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
0
1 1000
PO_ ASSERTION OCCURS
ABOVE THIS LINE
OUTPUT VOLTAGE HIGH vs. SOURCE CURRENT
(WEAK PULLUP OUTPUT)
MAX6870/71 toc09
I OUT (mA)
V
OH
(V)
4.5 4.0 3.0 3.5 1.0 1.5 2.0 2.5 0.5
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
0
0 5.0
WEAK PULLUP
TO ABP
Typical Operating Characteristics (continued)
(V
IN1
= +6.5V to +13.2V, V
IN2
= +10V, V
IN3
–
IN6
= +2.7V to +5.5V, AUXIN_ = GPI_ = GND, MARGIN = MR = DBP, T
A
= +25°C,
unless otherwise noted.)
ADC ACCURACY
vs. TEMPERATURE
MAX6870/71 toc14
TEMPERATURE ( °C)
TOTAL UNADJUSTED ERROR (%)
60 35 10 -15
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1.0
-1.0
-40 85
V IN2 = -12V,
50mV/STEP RANGE V IN3 = 5V,
20mV/STEP RANGE
V IN1 = 9V,
25mV/STEP RANGE
V AUXIN1 = 1V
FET (IRF7811W)
TURN-ON WITH CHARGE PUMP
MAX6870/71 toc15
10 /di
V PO1 10V/div
V SOURCE 2V/div
I DRAIN 5A/div
SEE FIGURE 9