tb62217afg TOSHIBA Semiconductor CORPORATION, tb62217afg Datasheet - Page 31

• Manufacturer Part Number: tb62217afg
• Description: Pwm Drive Stepping Motor Driver / Brush Dc Motor Driver Selectable, Dc-dc Converter And Reset Function Ic
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Protection Operations
DC/DC A DC/DC B DC/DC C
Detected
detected
detected
detected
detected
detected
(1) When the RESET output mask is “1” in the extended setup mode
Stop state in the protection operations listed above
VSD
Not
Not
Not
Not
Not
x
x
x
x
Shut-down
only by initializing using the POR when the VM power is turned on again.
OFF
to low and to high again.
L Pulse: The ORT keeps producing low pulses for 40 ms (if OSCM
DC-DC OFF
depending on the logic level on which the SLEEP signal is when the converter stops operating.
(1) If the SLEEP is low when the DC-DC converter stops, it can be restarted by changing the SLEEP
(2) If the SLEEP is high when the DC-DC converter stops, it can be restarted by changing the SLEEP
Detected Error and Detection Block
Detected
detected
detected
detected
detected
detected
VSD
signal from low to high.
signal from high to low and to high again.
Not
Not
Not
Not
Not
only the motor block stops operating. It can be restarted by changing the SLEEP signal from high
Detected
detected
detected
detected
detected
detected
VSD
all the functions stop as a failure related to the entire system occurs. They can be restarted
Not
Not
Not
Not
Not
only the DC-DC converter concerned stops operating. It can be restarted as stated below
Detected
detected
detected
detected
detected
detected
Motor
ISD
Not
Not
Not
Not
Not
Detected
Entire IC
detected
detected
detected
detected
detected
TSD
Not
Not
Not
Not
Not
operation
operation
operation
operation
DC/DC
Normal
Normal
Normal
Normal
DCDC
down
Shut
OFF
A
31
operation
operation
operation
operation
DC/DC
Normal
Normal
Normal
Normal
DCDC
down
Operation State
Shut
OFF
B
operation
operation
operation
operation
DC/DC
Normal
Normal
Normal
Normal
DCDC
down
Shut
OFF
C
800 kHz).
operation
operation
operation
operation
Normal
Normal
Normal
Normal
Motor
down
Shut
OFF
Reset Output Reset Method
L pulse
H
H
H
H
L
TB62217AFG
2004-11-12
SLEEP/POR
SLEEP/POR
SLEEP/POR
SLEEP/POR
POR