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L9800 Datasheet(PDF) 24 Page - STMicroelectronics

Part # L9800
Description  Automotive 8-channel LS driver
PDF  55 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9800 Datasheet(HTML) 24 Page - STMicroelectronics

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Figure 18. Scenario 5 power-down
VBATT
VDDIO
IN0
POR
t
V
V3V3
V1V2
Scenario 5: power-down with VBATT ping down after VDDIO. When even VBATT undergoes 2 V, although IN0 is
still high, internal supply reference and vbg ; POR is set to zero. IDLE = IN1 = 0 V.
Figure 19. Scenario 6 power-down
VBATT
VDDIO
IN0
POR
t
V
V3V3
V1V2
Scenario 6: power-down with VDDIO ping down after VBATT. When even VDDIO undergoes 3 V, although IN0 is
still high, internal supply reference and vbg ; POR is set to zero, IDLE = IN1 = 0 V. As for scenario 5, the same
condition happens if, instead of IN0, one of the other pins is high or two of them or all of them.
L9800
Power supply
DS14041 - Rev 2
page 24/55



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