Rainbow-electronics MAX16040 Manual do Utilizador Página 3

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MAX16033–MAX16040
Low-Power Battery Backup
Circuits in Small µDFN Packages
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= 2.25V to 5.5V, V
BATT
= 3V, RESET not asserted, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
=
+25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
RESET OUTPUT
MAX160_ _ _L_46 4.50 4.63 4.75
MAX160_ _ _L_44 4.25 4.38 4.50
MAX160_ _ _L_31 3.00 3.08 3.15
MAX160_ _ _L_29 2.85 2.93 3.00
MAX160_ _ _L_26 2.55 2.63 2.70
Reset Threshold V
TH
MAX160_ _ _L_23 2.25 2.32 2.38
V
V
CC
Falling Reset Delay V
CC
falling at 10V/ms 25 µs
Reset Active Timeout Period t
RP
140 280 ms
I
SINK
= 1.6mA, V
CC
> 2.1V 0.3
RESET Output Low Voltage V
OL
RESET asserted
I
SINK
= 100µA, V
CC
> 1.2V 0.4
V
RESET Output High Voltage V
OH
MAX160_ _L only (push-pull), RESET not
asserted, I
SOURCE
= 500µA, V
CC
> V
TH
(
MAX
)
0.8 x
V
CC
V
RESET Output Leakage
Current
I
LKG
MAX160_ _P only (open drain), not asserted 1 µA
POWER-FAIL COMPARATOR
PFI Input Threshold V
PFI
V
PFI
falling 1.185 1.235 1.285 V
PFI Hysteresis 1%
PFI Input Current V
PFI
= 0V or V
CC
-100 +100 nA
V
CC
> 2.1V, I
SINK
= 1.6mA 0.3
PFO Output Low Voltage V
OL
O utp ut asser ted
V
CC
> 1.2V, I
SINK
= 100µA 0.4
V
PFO Output High Voltage V
OH
MAX160_ _L only (push-pull), V
CC
> V
TH(MAX),
I
SOURCE
= 500µA, output not asserted
0.8 x
V
CC
V
PFO Leakage Current
MAX160_ _P only (open drain), V
PFO
= 5.5V,
not asserted
A
PFO Delay Time V
PFI
+ 100mV to V
PFI
- 100mV 4 µs
MANUAL RESET (MAX16033/MAX16037)
V
IL
0.3 x
V
CC
MR Input Voltage
V
IH
0.7 x
V
CC
V
Pullup Resistance to V
CC
20 165 k
Minimum Pulse Width s
Glitch Immunity V
CC
= 3.3V 100 ns
MR to Reset Delay 120 ns
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