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STM1404 데이터시트(PDF) 25 Page - STMicroelectronics

부품명 STM1404
상세설명  3 V FIPS-140 security supervisor with battery switchover
PDF  35 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
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STM1404 데이터시트(HTML) 25 Page - STMicroelectronics

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STM1404
DC and AC parameters
25/36
Figure 26.
STM1404 switchover diagram, condition A (VBAT < VSW)
Figure 27.
STM1404 switchover diagram, condition B (VBAT > VSW)
AI10463
VCC = 3.3V
VSW = 2.4V
VBAT
VBAT – 75mV
VBAT – 35mV
VRST
VOUT
AI10464
VCC = 3.3V
VSW = 2.4V
VBAT
VSW + 40mV
VOUT
Table 6.
DC and AC characteristics
Sym
Alter-
native
Description
Test condition(1)
Min
Typ
Max
Unit
VCC,
VBAT
(2)
Operating voltage
TA = –40 to +85°C
2.2
3.6
V
ICC
VCC supply current
(STM1404A)
Typ @ 3.3 V, 25°C
50
65
µA
VCC supply current
(STM1404B,C)
35
50
µA
VCC supply current in
battery backup mode
Excluding IOUT
(VBAT = 2.3 V, VCC = 2.0
V, MR = VCC)
25
35
µA
IBAT
(3)
VBAT supply current in
battery backup mode
Excluding IOUT
(VBAT = 3.6 V)
5.3
8.0
µA
VOUT1
VOUT voltage (active)
IOUT1 = 5 mA
(4)
(VCC > VSW)
VCC – 0.03
VCC –
0.015
V
IOUT1 = 80 mA
(VCC > VSW)
VCC – 0.3
VCC – 0.15
V
IOUT1 = 250 µA,
VCC > VSW
(4)
VCC –
0.0015
VCC –
0.0006
V
VOUT2
VOUT voltage
(battery
backup)
IOUT2 = 250 µA,
VBAT = 2.2 V
VBAT – 0.1
VBAT – 0.04
V
IOUT2 = 1 mA,
VBAT = 2.2 V
VBAT – 0.16
V
VTPU1
Internal switched
supply voltage (active)
ISOURCE = 5 mA
(VCC > VSW)
VCC – 0.3
V



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