Toshiba TB9051FTG, Руководство пользователя, Страница: 31 / 49

TB9051FTG
Ver.1.1 2019-03-14
31 / 49
Figure 7.10-4 Description of diagnositic operation
Note: Some of timing charts in this document may be omitted or simplified for explanatory purposes.
Table 7.10-5 Summary of initial diagnostic operation
Notes of Table 7.10-5
* "
○
" means normal value (undetected state), and "-" means that a test is not performed.
* In the case of 5, three detection circuits continue waiting until being normal value (undetected state).
When it becomes normal value, diagnosis operation starts at that timing, and end the initial diagnosis
for about 48
μ
s.
* It does not operate with voltage less than the VCC undervoltage POR detection voltage.
DIAG
PIN
OUT1/2
PIN
DIAG
PIN
OUT1/2
PIN
VBAT Low voltage ○ ○ ○ ○
VCC Low voltage ○ ○ ○ ○
VCC High voltage ○ ○ ○ ○
VBAT Low voltage ○ ○ ○
VCC Low voltage ○ ○ ○
VCC High voltage ○ ○ ○
VBAT Low voltage ○ ○ ○
VCC Low voltage ○ ○ ○
VCC High voltage ○ ○ ○
VBAT Low voltage ○ ○ ○
VCC Low voltage ○ ○ ○
VCC High voltage ○ ○ ○
VBAT Low voltage － － －
VCC Low voltage － － －
VCC High voltage － － －
High-z
Initial diagnosis does not
start.
It becomes an unusual
function of Table 7.1-2.
5
When at least one
condition continues the
state where it does not
detect
Abnormal L High-z L
Output
Function
4
In the case of NG,
it is also at any 1
conditions.
Abnormal L High-z L
Output
Function
3
In the case of NG,
it is also at any 1
conditions.
Abnormal L High-z L
2
In the case of NG,
it is also at any 1
conditions.
Abnormal L High-z L
Output
Function
Diagnostic
result
Under diagnostic
operation
After termination
of initial diagnostic
Memo
1 Normal L High-z H
Output
Function
Condition Each detector
Start-after POR
formation conditions
The state where it does
not detect Test 1
(Normal threshold)
The state where it does
not detect Test 2
(A threshold is changed)
The state where it does
not detect Test 3
(Normal threshold)