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STPM098C 데이터시트(PDF) 55 Page - STMicroelectronics

부품명 STPM098C
상세설명  Automotive dual digital 8-phase controller with PMBus™
PDF  110 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
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STPM098C 데이터시트(HTML) 55 Page - STMicroelectronics

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3.12.1.2
TSEN voltage monitor
TSENn voltage level is monitored by means of dedicated UV and OV diagnosis.
Figure 44. TSEN voltage monitor simplified block diagram
TSENn
+
-
-
+
VBG
TSENn_OV
TSENn_UV
GND
VBG
GND
If TSENn ≤ TSEN_uv_th occurs for an interval longer than T_tsen_uv_flt, the flag TSENn_UV flag is set. Fault
pins and safe state activation depends on FHC configuration. TSENn_UV clearing depend on FHC configuration
[n = 1, 2].
If TSENn ≥ TSENn_ov_th occurs for an interval longer than T_tsen_ov_flt, the flag TSENn_OV flag is set. Fault
pins and safe state activation depends on FHC configuration. TSENn_OV clearing depend on FHC configuration
[n = 1, 2].
TSEN monitor is safety relevant and then a self-check procedure is implemented.
Figure 45. TSEN voltage monitor timing diagram
t
TSENn_OV
(Internal signal)
TSENn_UV
(Internal signal)
OV
TSENnOV_TH
UV
UV
OPERATIVE
OPERATIVE
TSENn_UV_TH
T_tsen_ov_flt
T_tsen_uv_flt
T_tsen_ov_flt
TSENn
T_tsen_uv_flt
Table 46. TSEN voltage monitor electrical characteristics
Symbol
Parameter
Test condition
Min Typ Max Unit
Notes
TSEN_uv_th
TSEN undervoltage threshold
0.18 0.2 0.21
V
Comparator output Low to
high
TSEN _uv_hys TSEN undervoltage hysteresis
-
0
-
mV -
STPM098C
Functional description
DS14440 - Rev 1
page 55/110



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