tb62217afg TOSHIBA Semiconductor CORPORATION, tb62217afg Datasheet - Page 38

• 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

Motor Block Electrical Characteristics 2
(unless otherwise specified, Ta
Vref input voltage
Vref input current
Vref attenuation ratio
Motor power return voltage
Recommended capacitance for
OSC_M pin
Operating current for motor over
current protection circuit
Note: Over current protection circuit
If an abnormal current higher than the corresponding rating flows through a motor, the overcurrent protection
circuit triggers the internal shut-down circuit to turn off the output block. In this case, the currently latched
function data is cleared.
The overcurrent protection circuit is kept tripped for the motor block until (1) the power is turned on again or
(2) the SLEEP returns to a high level.
If ISD comes in effect, the output becomes inactive (ALL OFF state) and is kept so until a normal condition is
recovered. However, be sure to insert a fuse into the power supply for sake of fail-safe.
Characteristics
(Gain10)
(Gain20)
Cosc_M
Symbol
(Down)
VMR
VMR
(Up)
Vref
Vref
Vref
ISD
Iref
(Note)
25°C and VM 18V ~ 40 V)
Circuit
Test
DC
DC
DC
DC
DC

When motor output is active
When motor output is inactive and
Vref
When motor output is active and
Vref
External capacitance at fosc_M
800 kHz
fchop = 100 kHz
38
2.0 V
2 V
Test Condition

1/19.2
1/9.6
Min
0.8
3.0
13



Typ.
1/10
1/20
220
5.0
TB62217AFG
14
14


2004-11-12
1/10.4
1/20.8
Max
3.0
1.0

15


Unit
P A
pF

V
V
A