HAL855
DATA SHEET
4.7.3. Power-Down Operation
Last PWM/Biphase-M signal starts
5 V
VDD,UV
time
VOUT (3-wire mode)
tLVD
Output undefined
Biphase-M
format
Output undefined
No valid signal
PWM format
Valid signal
Fig. 4–7: Power-down operation
4.7.4. Power Drop Operation
VDD
VDD
PWM/Biphase-M signal stops
New PWM/Biphase-M signal starts
5 V
5 V
Power-on
reset
Low voltage
on
time
VOUT (3-wire mode)
tPOD
tLVD
Output undefined
Biphase-M
format
The first period contains
no valid data
Output undefined
PWM format
Valid signal
No valid signal
Valid signal
Fig. 4–8: Power-drop operation
32
Nov. 26, 2008; DSH000149_003EN
Micronas