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L9800 データシート(PDF) 15 Page - STMicroelectronics

部品番号 L9800
部品情報  Automotive 8-channel LS driver
PDF  55 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9800 データシート(HTML) 15 Page - STMicroelectronics

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Table 10. Supply ranges and operative modes
Function
Undervoltage condition on VBATT
VBATT not in undervoltage
Operating modes
VDDIO ≤ VDDIOUV VDDIO > VDDIOUV VDDIO ≤ VDDIOUV VDDIO > VDDIOUV
Channels
u
u
u
u
Sleep
u
u
u
u
Idle
u
u(1)
a(2)
a
Active
u
u(3)
a(2)
a(2)
Limp-home
SPI communication
u
u
u
u
Sleep
u
a
u
a
Idle
u
a
u
a
Active
u
a(4)
u
a(4)
Limp-home
SPI registers
r
r
r
r
Sleep
r
a
r
a
Idle
r
a
r
a
Active
r
a(4)
r
a
Limp-home
1. Available in case VS_UV_MASK bit is set to 1.
2. IN pins only.
3. Only OUT2 and OUT3 available in case VS_UV_MASK bit is set to 1.
4. Read only.
Where:
•
"a" stands for available
•
"u" stands for unavailable
•
"r" stands for reset
6.1.1
Power-up
The power-up condition is satisfied if, at least, one of the supply voltages (VBATT or VDDIO) is applied to the
device and the INn or IDLE pins are set to “high”.
In case of both VBATT and VDDIO device pins connected to external sources, the VBATT voltage must be
included in its supply voltage range for normal operations (VBATT > 6 V).
In case of only the VBATT device pin connected to an external source, the VBATT voltage must be included in its
supply voltage range for normal operations (VBATT > 6 V).
All the possible power-up scenarios are described below:
L9800
Power supply
DS14041 - Rev 2
page 15/55



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