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L9177ATR датащи(PDF) 25 Page - STMicroelectronics

номер детали L9177ATR
подробное описание детали  Automotive engine management control IC for small engines
PDF  55 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9177ATR датащи(HTML) 25 Page - STMicroelectronics

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3
Functional description
3.1
Chip working conditions
Table 24. A outputs working conditions
-
Standby Run mode VB_OV VB_UV Reset
Over current
Thermal warning
VDD_SB regulator
ON
ON
ON
ON
ON
Current limitation
ON
VDD regulator
OFF
ON
OFF
OFF
ON
Current limitation
OFF if linked with VDD current
limitation
VDD_TRK regulator
OFF
ON
OFF
OFF
ON
Current limitation
OFF if linked with VDD_TRK current
limitation
All LS drivers
OFF
ON
OFF
OFF
OFF
Over current switch off
ON
Diagnostics of all LS drivers
OFF
ON
OFF
OFF
ON(1)
-
ON
HS Driver
OFF
ON
OFF
OFF
OFF
Current limitation
ON
Stepper Motor Driver
OFF
ON
OFF
OFF
OFF
Over current switch off
ON
K-line Transceiver
OFF
ON
OFF
OFF
OFF
Current limitation
ON
VRS
OFF
ON
OFF
OFF
OFF
-
ON
SPI
Default
Default
Default Default Default
ON
ON
1. The diagnostic currents and comparator are switched on in reset condition.
3.2
Chip bias current generation
The Internal current generator circuit is buffering internal band-gap voltage (1.2 V typ.) on a high precision
external resistor (10 kΩ ±1 %) and generates an accurate current reference used to create all the chip bias
currents.
L9177A
Functional description
DS12175 - Rev 5
page 25/55



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