ta8435h TOSHIBA Semiconductor CORPORATION, ta8435h Datasheet - Page 13

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

OUTPUT BLOCK
Output
Saturation
Voltage
Diode
Forward
Voltage
Output Dark Current
(A + B Channels)
A−B
Chopping
Current
(Note)
Note:
CHARACTERISTIC
Maximum current (θ = 0): 100%
2W1−2φ : 2W1-2-phase excitation mode
W1−2φ : W1-2-phase excitation mode
1−2φ
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
Upper Side
Lower Side
Upper Side
Lower Side
Upper Side
Lower Side
Upper Side
Lower Side
Upper Side
Lower Side
: 1-2-phase excitation mode
W1
W1
W1
W1
―
―
―
―
−
−
−
−
2
2
2
2
φ
φ
φ
φ
1
1
−
−
―
―
―
―
―
―
2
2
φ
φ
SYMBOL
VECTOR
V
V
V
V
V
V
V
V
SAT U1
SAT U2
SAT U3
V
V
SAT L1
SAT L2
SAT L3
I
I
F U1
F U2
F L1
F L2
M1
M2
TEST
CIR−
CUIT
―
4
5
2
13
I
I
I
Pulse width 30 ms
I
I
Pulse width 30 ms
θ = 0
θ = 1 / 8
θ = 2 / 8
θ = 3 / 8
θ = 4 / 8
θ = 5 / 8
θ = 6 / 8
θ = 7 / 8
ENABLE : "H" Level,
RESET :
ENABLE : "L" Level
RESET :
OUT
OUT
OUT
OUT
OUT
= 1.5 A
= 0.8 A
= 2.5 A
= 1.5 A
= 2.5 A
TEST CONDITION
Output Open
Output Open
"L" Level
"H" Level
―
REF IN : H
R
Ω
C
0.0033 µF
NF
OSC
= 0.8
=
66.4
50.5
MIN
86
78
35
15
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
TA8435H/HQ
TYP.
71.4
55.5
100
100
100
2.1
1.3
1.8
1.1
2.5
1.8
2.0
1.5
2.5
1.8
91
83
40
20
―
8
MAX UNIT
76.4
60.5
2006-3-2
2.8
2.0
2.2
1.5
3.0
2.2
3.0
2.1
3.3
2.5
50
15
96
88
45
25
―
―
―
mA
µA
%
V
V