MAX16023 Datasheet, PDF (3/17 Pages) Maxim Integrated Products – Battery-Backup Circuits with Regulated Output Voltage

Battery-Backup Circuits with
Regulated Output Voltage
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
Line Regulation
Load Regulation
V_CC = (V_OUT + 1V) to (V_OUT + 2V),
I_OUT = 1mA
V_CC = V_OUT + 1V, I_OUT = 1mA to 2mA
LDO = 1.2V
0.2
1.0
%/V
0.15
1.0
%
500
Dropout Voltage
I_OUT = 50mA
(Note 4)
LDO = 1.8V
LDO = 2.5V
LDO = 3V
200
180
mV
150
LDO = 3.3V
150
Output Current Limit
Battery Freshness Leakage
Current
V_CC = 1.6V
V_CC ≥ 2V
V_BATT = 5.5V
75
mA
150
10
nA
RESET OUTPUT (RESET)
Reset Threshold
V_CC Falling to Reset Delay
Reset Timeout Period
RESET Output Low Voltage
RESET Output High Voltage
(Push-Pull Output)
RESET Output Leakage Current
(Open-Drain Output)
V_TH
(See Table 1)
V
t_RD V_CC falling at 10V/ms
20
µs
t_RP V_CC rising
145
215
285
ms
V_OUT = 3.3V, I_SINK = 3.2mA, RESET asserted
V_OL V_OUT = 1.8V, I_SINK = 1mA, RESET asserted
0.3
0.3
V
V_OUT = 1.2V, I_SINK = 100µA, RESET asserted
0.3
V_OH
V_CC ≥ 1.1 x V_TH, I_SOURCE = 100µA,
RESET deasserted
V_OUT - 0.3V
V
V _RESET = 5.5V, reset deasserted
1
µA
POWER-FAIL COMPARATOR (PFI, PFO)
PFI Input Threshold
PFI Input Hysteresis
PFI Input Current
PFO Output Low Voltage
PFO Output High Voltage
(Push-Pull Output)
PFO Leakage Current
(Open-Drain Output)
PFO Delay Time
MANUAL RESET (MR)
V_PFT
V_PFI-HYS
I_PFI
V_PFI falling, 1.6V ≤ V_CC ≤ 5.5V
V_OUT = 1.8V, I_SINK = 1mA, PFO asserted
V_OUT =1.2V, I_SINK = 100µA, PFO asserted
0.570 0.590 0.611
V
30
mV
-1
+1
µA
0.3
V
0.3
I_SOURCE = 100µA, PFO deasserted
V_OUT - 0.3V
V
V _PFO = 5.5V, PFO deasserted
(V_PFI + 100mV) to (V_PFI - 100mV)
1
µA
20
µs
Input Low Voltage
Input High Voltage
Pullup Resistance
Glitch Immunity
MR to Reset Delay
V_IL
V_IH
Pullup resistance to V_CC
0.7 x V_CC
0.3 x V_CC
V
20
30
kΩ
100
ns
120
ns
_______________________________________________________________________________________ 3