tb62209f TOSHIBA Semiconductor CORPORATION, tb62209f Datasheet - Page 5

• Manufacturer Part Number: tb62209f
• Description: Stepping Motor Driver Ic Using Pwm Chopper Type
• Manufacturer: TOSHIBA Semiconductor CORPORATION

feedback
V
V
ISD: Current shutdown
TSD: Thermal shutdown
Current
Current
4. Output control circuit, current feedback circuit and current setting circuit
setting
circuit
circuit
DDR
MR
: V
circuit
circuit
: V
Note: The STANDBY pins are pulled down in the IC by 10-kΩ resistor.
Reset
M
DD
power on Reset
STANDBY
Output pin
power on
When not using the pin, connect it to GND. Otherwise, malfunction may occur.
V
V
DD
M
Output control circuit
NF set current
reached signal
RNF set current
monitor signal
Output stop
signal
Micro-step current
circuit
circuit
V
circuit
circuit
Protection
clear signal
setup latch
V
TSD
ISD
DDR
MR
circuit
Charge Start
PHASE
Micro-step current setting
Internal
LOGIC
Decay
Mixed
timing
signal
select
circuit
Output RESET signal
stop
decoder circuit
U1
U2
L1
L2
5
Charge
timing table clear
signal
pump
halt
Mixed Decay
DECAY
MODE
signal
CR Serector
V
Charge
DD
circuit
pump
CR counter
reference circuit
V
M
Chopping
Power supply for
upper drive output
Decay
Mixed
timing
circuit
V
H
Output circuit
TB62209F
2001-09-05
Output
circuit
Cop A
Cop B
Cop C