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L9800 データシート(PDF) 23 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) 23 Page - STMicroelectronics

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Figure 16. Scenario 3 power-down
tIDLE2SLEEP
VBATT
VDDIO
IDLE
POR
t
V
V3V3
V1V2
Scenario 3: idle to sleep transition with VDDIO and VBATT in their operative range (at least one of them).
IDLE is set to low, V3V3 supply reference and vbg drop, and POR is set to zero by tIDLE2SLEEP of about 10 μs. IN0
= IN1 = 0 V.
Figure 17. Scenario 4 power-down
tLH2SLEEP/tACTIVE2SLEEP
IN0
POR
V
OUT2D
VBATT
VDDIO
t
V3V3
V1V2
Scenario 4: limp to sleep transition (IDLE=0) and active to sleep transition (IDLE = 1 → 0) with VDDIO and
VBATT in their operative range (at least one of them). IN0 is set to low, V3V3 supply reference and vbg , POR
goes down to zero and the corresponding channel is switched off within 150 μs, IN1 can be already 0 or can
follow IN0 behavior.
L9800
Power supply
DS14041 - Rev 2
page 23/55



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