stm1404c STMicroelectronics, stm1404c Datasheet - Page 26

• Manufacturer Part Number: stm1404c
• Description: Security Supervisor With Battery Switchover
• Manufacturer: STMicroelectronics

Figure 26. STM1404 switchover diagram, condition A (V
Figure 27. STM1404 switchover diagram, condition B (V
Table 6.
26/36
V
V
V
I
V
BAT
Sym
V
BAT
I
OUT1
OUT2
TPU1
CC
CC
(3)
(2)
,
native
Alter-
DC and AC characteristics
supply voltage (active)
V
battery back-up mode
battery back-up mode
V
V
V
V
V
BAT
OUT
CC
OUT
Operating voltage
Internal switched
CC
CC
(STM1404B,C)
(STM1404A)
Description
supply current in
supply current in
voltage (battery
supply current
supply current
voltage (active)
back-up)
V SW = 2.4V
V SW = 2.4V
V CC = 3.3V
V CC = 3.3V
V RST
V BAT
V BAT
V BAT – 75mV
(V
BAT
T
Test condition
Typ @ 3.3V, 25°C
A
I
I
I
Excluding I
Excluding I
I
SOURCE
I
OUT1
OUT2
OUT1
(V
= 2.3V, V
V
I
(V
OUT1
(V
(V
= –40 to +85°C
V
OUT2
V
MR = V
CC
BAT
BAT
BAT
CC
CC
CC
> V
= 250µA,
= 250µA,
= 5mA
= 80mA
> V
> V
> V
= 3.6V)
= 2.2V
= 1mA,
= 2.2V
= 5mA
SW
CC
CC
SW
SW
SW
OUT
OUT
(4)
)
(4)
= 2.0V,
)
)
)
(1)
BAT
BAT
V
V
V BAT – 35mV
CC
V
< V
> V
V
V
V SW + 40mV
CC
BAT
CC
CC
– 0.0015 V
Min
2.2
SW
SW
– 0.03
– 0.3
– 0.3
– 0.1
V OUT
AI10463
V OUT
AI10464
)
)
V
V
V
V
CC
CC
BAT
BAT
CC
Typ
– 0.0006
5.3
– 0.015
50
35
25
– 0.15
– 0.04
– 0.16
Max
3.6
8.0
65
50
35
Unit
µA
µA
µA
µA
V
V
V
V
V
V
V