tb62217afg TOSHIBA Semiconductor CORPORATION, tb62217afg Datasheet - Page 27

• 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

(3) Data for Normal Stepping Motor Operation
The initial setup latch, extended setup latch, or normal motor latch is selected as a write latch according to the logical level of the
SLEEP signal and the polarity of the DATA signal at an STROBE signal edge.
If the SLEEP signal is low, the setup latch is selected when the STROBE changes from low to high (initial setup if DATA low and
extended setup if DATA
data transfer.
The stepping motor latches (for both A-B and C-D pairs) are initialized when the SLEEP signal changes from high to low or from
low to high.
All registers are initialized at POR.
The pins used to write during SLEEP include the DATA AB, CLOCK AB, and STROBE AB pins.
Data Bit
the drive data of the Toshiba TB62202AF.
10
11
12
13
14
15
The TB62217FG signals for normal stepping motor operation can be entered in much the same manner as
0
1
2
3
4
5
6
7
8
9
SLEEP
STROBE
CLK
DATA
Decay Mode B0
Decay Mode B1
Decay Mode A0
Decay Mode A1
Torque A0/B0
Torque A1/B1
Current B0
Current B1
Current B2
Current B3
Current A0
Current A1
Current A2
Current A3
x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
Phase B
Phase A
Name
high). If the SLEEP is high, the normal motor latch is selected. Don't care the level of the SLEEP during
0
1
2
Current range setting
Channel B current attenuation ratio setting
(Mixed Decay Mode)
Channel B current setting
4-bit current data
(Using 4 data bits can divide each step
into 16.)
(“0000”: All-output OFF mode)
Channel B current phase information
Channel A current attenuation ratio setting
(Mixed Decay Mode)
Channel A current setting
4-bit current data
(Using 4 data bits can divide each step
into 16.)
(“0000”: All-output OFF mode)
Channel A phase information
3
4
5
6
Function
7
27
8
9
10 11 12 13 14 15
A1/B1
B1
See Setting Table (3).
1: OUT B  is high.
0: OUT B  is high.
A1
See Setting Table (4).
1: OUT A  is high.
0: OUT A  is high.
0
0
1
1
0
0
1
1
0
0
1
1
B0
A0
0 : 12.5% Decay Mode
1 : 37.5% Decay Mode
0 : 75% Decay Mode
1 : Fast Decay Mode(100%)
0 : 12.5% Decay Mode
1 : 37.5% Decay Mode
0 : 75% Decay Mode
1 : Fast Decay Mode(100%)
A0/B0
0 :
1 :
0 :
1 : 100%
50%
70%
85%
Setting
x x x x x x x x x x
x x x x x x x x x x
x x x x x x x x x x
x x x x x x x x x x
x x x x x x x x x
x x x x x x x x x
x x x x x x x x x
x x x x x x x x x
TB62217AFG
2004-11-12