tb62202afg TOSHIBA Semiconductor CORPORATION, tb62202afg Datasheet - Page 3

• Manufacturer Part Number: tb62202afg
• Description: Dual-stepping Motor Driver Ic For Oa Equipment Using Pwm Chopper Type
• Manufacturer: TOSHIBA Semiconductor CORPORATION

STROBE
2. Logic unit A/B (C/D unit is the same as A/B unit)
Note: The RESET and SETUP pins are pulled down in the IC by 10-kΩ resistor.
RESET
SETUP
DATA
Function
This circuit is used to input from the DATA pins microïstep current setting data and to transfer them to the
subsequent stage. By switching the SETUP pin, the data in the mixed decay timing table can be overwritten.
CLK
When not using these pins, connect them to GND. Otherwise, malfunction may occur.
Data input
selector
Current feedback circuit
TORQUE
Micro-step current setting data logic circuit
× 2 bits
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
16-bit latch
16-bit shift register
B unit side
DECAY
× 2 bits
3
CURRENT
B unit side
D/A circuit
× 4 bits
A unit side
Output control circuit
PHASE
× 1 bit
B
DECAY
TIMING
MIXED
TB62202AFG
2005-04-04
Output control
circuit