Datasheet

(V
CC
= 2.25V to 5.5V, V
BATT
= 3V, RESET not asserted, T
A
= -40°C to +85°C, for MAX16039PLA31+T, T
A
= -55°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
Reset Threshold V
TH
MAX160_ _ _L_46 4.50 4.63 4.75
V
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
MAX160_ _ _L_23 2.25 2.32 2.38
V
CC
Falling Reset Delay V
CC
falling at 10V/ms 25 µs
Reset Active Timeout Period t
RP
140 280 ms
RESET Output Low Voltage V
OL
RESET asserted
I
SINK
= 1.6mA, V
CC
≥ 2.1V 0.3
V
I
SINK
= 100µA, V
CC
> 1.2V 0.4
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
PFO Output Low Voltage V
OL
Output asserted
V
CC
> 2.1V, I
SINK
= 1.6mA 0.3
V
V
CC
> 1.2V, I
SINK
= 100µA 0.4
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
1 µA
PFO Delay Time V
PFI
+ 100mV to V
PFI
- 100mV 4 µs
MANUAL RESET (MAX16033/MAX16037)
MR Input Voltage
V
IL
0.3 x V
CC
V
V
IH
0.7 x V
CC
Pullup Resistance to V
CC
20 165 kΩ
Minimum Pulse Width 1 µs
Glitch Immunity V
CC
= 3.3V 100 ns
MR to Reset Delay 120 ns
MAX16033–MAX16040 Low-Power Battery-Backup
Circuits in Small μDFN Packages
www.maximintegrated.com
Maxim Integrated │ 3
Electrical Characteristics (continued)