參數(shù)資料
型號: STM1404
廠商: 意法半導體
英文描述: Security Supervisor with Battery Switchover(帶電池轉(zhuǎn)換功能的安全監(jiān)控器)
中文描述: 安全監(jiān)控與電池切換(帶電池轉(zhuǎn)換功能的安全監(jiān)控器)
文件頁數(shù): 5/36頁
文件大?。?/td> 362K
代理商: STM1404
STM1404
List of figures
5/36
List of figures
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Figure 21.
Figure 22.
Figure 23.
Figure 24.
Figure 25.
Figure 26.
Figure 27.
Figure 28.
Figure 29.
Figure 30.
Figure 31.
Logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
QFN16 connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Block diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Hardware hookup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Tamper Pin (TP
1
or TP
3
) Normally High (NH) external hookup (switch closed). . . . . . . . . 10
Tamper Pin (TP
1
or TP
3
) Normally High (NH) external hookup (switch open). . . . . . . . . . 10
Tamper Pin (TP
2
or TP
4
) Normally Low (NL) external hookup (switch closed) . . . . . . . . . 10
Tamper Pin (TP
2
or TP
4
) Normally Low (NL) external hookup (switch open). . . . . . . . . . . 11
Power-fail comparator waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Supply voltage protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
V
BAT
-to-V
OUt
on-resistance vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Supply current vs. temperature (no load) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
V
PFI
threshold vs. temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Reset comparator propagation delay vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Power-up t
rec
vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Normalized reset threshold vs. temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
PFI to PFO propagation delay vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
RST output voltage vs. supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
RST response time (assertion). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Power-fail comparator response time (assertion). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Power-fail comparator response time (de-assertion) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
V
CC
to reset propagation delay vs. temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Maximum transient duration vs. reset threshold overdrive . . . . . . . . . . . . . . . . . . . . . . . . . 23
AC testing input/output waveforms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
MR timing waveform. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
STM1404 switchover diagram, condition A (V
BAT
< V
SW
) . . . . . . . . . . . . . . . . . . . . . . . . . 26
STM1404 switchover diagram, condition B (V
BAT
> V
SW
) . . . . . . . . . . . . . . . . . . . . . . . . . 26
Temperature hysteresis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
QFN16 – 16-lead, quad, flat package, no lead, 3x3mm body size, outline . . . . . . . . . . . . 31
QFN16 – 16-lead, quad, flat package, no lead, 3x3mm, recommended footprint . . . . . . . 32
Topside marking information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
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