Rainbow Electronics MAX16024 - Manual (Page 3)

MAX16023/MAX16024
Battery-Backup Circuits with
Regulated Output Voltage
_______________________________________________________________________________________ 3
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Line Regulation
V CC = (V OUT + 1V) to (V OUT + 2V),
I OUT = 1mA
0.2 1.0 %/V
Load Regulation V
CC
= V
OUT
+ 1V, I
OUT
= 1mA to 2mA 0.15 1.0 %
LDO = 1.2V 500
LDO = 1.8V 200
LDO = 2.5V 180
LDO = 3V 150
Dropout Voltage
I OUT = 50mA
(Note 4)
LDO = 3.3V 150
mV
V CC = 1.6V 75
Output Current Limit
V CC
≥ 2V 150
mA
Battery Freshness Leakage
Current
V BATT = 5.5V 10 nA
RESET OUTPUT (
RESET)
Reset Threshold V TH (See Table 1) V
V CC Falling to Reset Delay t RD V CC falling at 10V/ms 20 µs
Reset Timeout Period t RP V CC rising 145 215 285 ms
V OUT = 3.3V, I SINK = 3.2mA, RESET asserted 0.3
V OUT = 1.8V, I SINK = 1mA, RESET asserted 0.3 RESET Output Low Voltage V OL
V OUT = 1.2V, I SINK = 100µA, RESET asserted 0.3
V
RESET Output High Voltage
(Push-Pull Output)
V OH
V CC ≥ 1.1 x V TH , I SOURCE = 100µA,
RESET deasserted
V OUT - 0.3V V
RESET Output Leakage Current
(Open-Drain Output)
V RESET = 5.5V, reset deasserted 1 µA
POWER-FAIL COMPARATOR (PFI, PFO)
PFI Input Threshold V PFT V PFI falling, 1.6V ≤ V CC
≤ 5.5V 0.570 0.590 0.611 V
PFI Input Hysteresis V PFI-HYS 30 mV
PFI Input Current I PFI -1 +1 µA
V
OUT
= 1.8V, I
SINK
= 1mA, PFO asserted 0.3
PFO Output Low Voltage
V OUT =1.2V, I SINK = 100µA, PFO asserted 0.3
V
PFO Output High Voltage
(Push-Pull Output)
I SOURCE = 100µA, PFO deasserted V OUT - 0.3V V
PFO Leakage Current
(Open-Drain Output)
V PFO = 5.5V, PFO deasserted 1 µA
PFO Delay Time (V PFI + 100mV) to (V PFI - 100mV) 20 µs
MANUAL RESET ( MR)
Input Low Voltage V IL 0.3 x V CC
Input High Voltage V IH 0.7 x V CC
V
Pullup Resistance Pullup resistance to V CC 20 30 k Ω
Glitch Immunity 100 ns
MR to Reset Delay 120 ns
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)