ta8435h TOSHIBA Semiconductor CORPORATION, ta8435h Datasheet - Page 14

• Manufacturer Part Number: ta8435h
• Description: Pwm Chopper-type Bipolar Stepping Motor Driver.
• Manufacturer: TOSHIBA Semiconductor CORPORATION

A−B
Chopping
Current
(Note)
Feed Back Voltage Step
Output T
Output Leakage
Current
Note:
r
Maximum current (θ = 0): 100%
CHARACTERISTIC
2W1−2φ : 2W1-2-phase excitation mode
W1−2φ : W1-2-phase excitation mode
1−2φ
Switching Characteristics
2W1
2W1
2W1
2W1
2W1
2W1
2W1
2W1
2 Phase Excitation Mode
VECTOR
−
−
−
−
−
−
−
−
2
2
2
2
2
2
2
2
φ
φ
φ
φ
φ
φ
φ
φ
: 1-2-phase excitation mode
Upper Side
Lower Side
W1
W1
W1
W1
―
―
―
―
−
−
−
−
2
2
2
2
φ
φ
φ
φ
1
1
−
−
―
―
―
―
―
―
2
2
φ
φ
SYMBOL
VECTOR
∆V
t
t
t
t
t
t
t
t
I
I
pLH
pHL
pLH
pHL
pLH
pHL
pLH
pHL
OH
OL
t
t
NF
r
f
TEST
CUIT
CIR−
―
―
7
6
14
θ = 0
θ = 1 / 8
θ = 2 / 8
θ = 3 / 8
θ = 4 / 8
θ = 5 / 8
θ = 6 / 8
θ = 7 / 8
∆θ = 0 / 8 − 1 / 8
∆θ = 1 / 8 − 2 / 8
∆θ = 2 / 8 − 3 / 8
∆θ = 3 / 8 − 4 / 8
∆θ = 4 / 8 − 5 / 8
∆θ = 5 / 8 − 6 / 8
∆θ = 6 / 8 − 7 / 8
R
C
CK~Output
OSC~Output
V
RESET ~Output
ENABLE ~Output
L
L
M
= 2 Ω, V
= 15 pF
= 30 V
TEST CONDITION
NF
―
= 0 V,
REF IN : H
R
C
0.0033 µF
NF
OSC
REF IN : H
R
C
0.0033 µF
NF
OSC
= 0.8 Ω
=
= 0.8 Ω
=
66.4
50.5
MIN
120
―
―
86
78
35
15
―
―
32
24
53
87
84
―
―
―
―
―
―
―
―
―
―
―
―
TYP.
71.4
55.5
100
100
100
127
124
160
0.3
2.2
1.5
2.7
5.4
6.3
2.0
2.5
5.0
6.0
91
83
40
20
72
64
93
―
―
TA8435H/HQ
0
MAX
76.4
60.5
112
104
133
167
164
200
96
88
45
25
50
50
―
―
―
―
―
―
―
―
―
―
―
―
―
―
2006-3-2
UNIT
mV
µA
µs
%