tb62217afg TOSHIBA Semiconductor CORPORATION, tb62217afg Datasheet - Page 55

• 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

VSD Threshold Change Timing During DC-DC Converter Block Current Limiter
Operation
periods.
When the limiter enters an operating state, the VSD circuit starts operating if this state continues for 3 OSC_D
Case 1
Case 3
Case 4
Case 2
OSC_D
OSC_D_CLK
(Internal signal)
Limiter
operating state
VSD threshold
change (L:  15%)
Limiter
operating state
VSD threshold
change (L:  15%)
Limiter
operating state
VSD threshold
change (L:  15%)
Limiter
operating state
VSD threshold
change (L:  15%)
(1)
(1)
(1)
(1)
(2)
(2)
(2)
(3)
(3)
55
(4)
Normal operation continued
Normal operation continued
Normal operation continued
VSD detected o shut-down
TB62217AFG
2004-11-12