HAL856
DATA SHEET
4.6.3. Power-Down Operation
VDD
Last PWM/BiPhase-M signal ends
5 V
VDD,UV
time
tLVD
IOUT (2-wire mode)
BiPhase-M
format
Output undefined
Output undefined
PWM format
Valid signal
No valid signal
Fig. 4–6: Power-down operation
4.6.4. Power Drop Operation
VDD
VDD
New PWM/BiPhase-M signal starts
PWM/BiPhase-M signal stops
5 V
5 V
Power-on
reset
Low voltage
on
time
tLVD
tPOD
The first period contains
no valid data
IOUT (2-wire mode)
BiPhase-M
format
Output undefined
Output undefined
The first period contains
no valid data
PWM format
Valid signal
No valid signal
Valid signal
Fig. 4–7: Power-drop operation
34
March 23, 2010; DSH000142_002EN
Micronas