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STPM098C Datasheet(PDF) 62 Page - STMicroelectronics

Part # STPM098C
Description  Automotive dual digital 8-phase controller with PMBus™
PDF  110 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STPM098C Datasheet(HTML) 62 Page - STMicroelectronics

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Figure 50. Output undercurrent monitor timing - Diagram 3
I
t
IPHASEn
0A
PEAK
AVERAGE
IOUTn_UC_TH
TH crossing and detection
on peak current
TH crossing and detection
on average current
Current margin on
diagnosis triggering
Single phase overcurrent diagnosis
A dedicated OC monitoring on single phase current is performed by means of a dedicated analog comparator set.
Figure 51. Single phase overcurrent simplified block diagram
DIGITAL
ISENn
CFILT/ISEN
Gm
IOUTn_OC_POS_FAST
Up/Reset
+
-
IOUTn_OC_POS _FAST_RETRY
GND
VCC
GND
VCC
IOUTn_OC_POS _SLOW
Up/Reset
IOUTn_OC_POS _SLOW_RETRY
IOUTn_OC_NEG _SLOW
Up/Reset
IOUTn_OC_NEG _SLOW_RETRY
FF
FF
CLK
CLK
CLK
1
0
CLK
FLT
+
-
VCC
GND
GND
If ISENn-CFILT/VREF1 ≥ IOUTm_oc_pos_slow_th occurs IOUTm_oc_pos_slow_retry times consecutively, the
IOUTn_OC_POS_SLOW flag is set. Fault pins and safe state activation depend on FHC configuration.
IOUTn_OC_POS_SLOW clearing depends on FHC configuration [n = 1, 2, 3, 4, 5, 6, 7, 8] and [m = 1, 2].
STPM098C
Functional description
DS14440 - Rev 1
page 62/110



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