MCP18480
DS20091B-page 24
?2003 Microchip Technology Inc.
FIGURE 2-19:
R
DISCH
Current vs. Supply
Current (I
POS
).
FIGURE 2-20:
R
DISCH
Voltage vs. R
DISCH
Current.
Data taken with the minimum following conditions:
I
POS
= 5 mA
(Enables V
POS
at its self-regulating voltage)
V
REFIN
= 2.5V, I
SET
= 10 礎
R
DISCH
= 16 M&
Note 1:
V
UVTH
> V
VREFIN
V
OVTH
< V
VREFIN
V
SENSE
= V
VNEG
V
VFB
= V
VNEG
V
DRAINTH
= V
VNEG
V
OVO
= V
VNEG
V
CL
= V
VREFIN
V
ENABLE
= 5V (open)
V
RESTART
= V
VNEG
(open)
820
830
840
850
860
870
5
10
15
20
25
Supply Current, I
POS
(mA)
T
A
= -40癈
T
A
= +25癈
T
A
= +85癈
Data taken with the minimum following conditions:
I
POS
= 5 mA
(Enables V
POS
at its self-regulating voltage)
V
REFIN
= 2.5V, I
SET
= 10 礎
I
RDISCH
from 100 nA to 10 礎 (500 nA steps)
Note 1:
V
UVTH
> V
VREFIN
V
OVTH
< V
VREFIN
V
SENSE
= V
VNEG
V
VFB
= V
VNEG
V
DRAINTH
= V
VNEG
V
OVO
= V
VNEG
V
CL
= V
VREFIN
V
ENABLE
= 5V (open)
V
RESTART
= V
VNEG
(open)
1.250
1.260
1.270
1.280
1.290
1.300
1.310
0 5 10 15 20 25 30 35 40 45 50
R
DISCH
Current (uA)
T
A
= -40癈
TA = +25癈
T
A
= +85癈
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