Rainbow Electronics MAX16024 - Manual (Page 4)

MAX16023/MAX16024
Battery-Backup Circuits with
Regulated Output Voltage
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ELECTRICAL CHARACTERISTICS (continued)
(V CC = 1.53V to 5.5V, V BATT = 3V, reset not asserted, T A = T J = -40°C to +85°C, C OUT = 10µF, unless otherwise noted. Typical val-
ues are at T A = T J = +25°C.) (Note 2)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
BATTERY-ON INDICATOR (BATT ON)
V OUT = 1.2V, I SINK = 100µA, BATT ON
deasserted
0.3
V
OUT
= 1.8V, I
SINK
= 1mA, BATT ON
deasserted
0.3 Output Low Voltage V OL
V OUT = 3.3V, I SINK = 3.2mA, BATT ON
deasserted
0.3
V
Output High Voltage
(Push-Pull Output)
V OH I SOURCE = 100µA, BATT ON asserted V OUT - 0.3V V
Output Leakage Current
(Open-Drain Output)
V CC = 5.5V 1 µA
Output Short-Circuit Current
Sink current, V CC = 5V
(Note 6)
60 mA
CE GATING (
CEIN, CEOUT)
CEIN Leakage Current Reset asserted, V CC = 0.9 x V TH or 0 -1 +1 µA
CEIN to CEOUT Resistance V CC = 5V, reset deasserted 8 50 Ω
CEOUT Short-Circuit Current Reset asserted, CEOUT = 0 0.75 2 mA
CEIN to CEOUT Propagation
Delay
50 Ω source, C
LOAD = 50pF, V CC = 4.75V 1.5 7 ns
Output High Voltage V OH I SOURCE = 100µA, reset asserted V OUT - 0.3V V
Reset to CEOUT Delay 12 µs
Note 2: All devices are 100% production tested at T A = +25°C and T A = +85°C. Limits over temperature are guaranteed by design.
Note 3: V BATT can be 0 anytime or V CC can go down to 0 if V BATT is active (except at startup).
Note 4: Dropout voltage is defined as (V IN - V OUT ) when V OUT is 2% below the value of V OUT when V IN = V OUT + 1V.
Note 5: CEIN to CEOUT resistance is tested with V CC = 5V and V CEIN = 0 or 5V.
Note 6: Use external current-limiting resistor to limit current to 20mA (max).