TA8435H/HQ
TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT
SILICON MONOLITHIC
TA8435H/HQ
PWM CHOPPER-TYPE BIPOLAR STEPPING MOTOR DRIVER.
The TA8435H/HQ is a PWM chopper-type sinusoidal micro-step
bipolar stepping motor driver.
Sinusoidal micro-step operation is achieved using only a clock
signal input by means of built-in hardware.
FEATURES
Single-chip bipolar sinusoidal micro-step stepping motor
driver
Output current up to 1.5 A (AVE.) and 2.5 A (PEAK)
PWM chopper-type
Structured by high voltage Bi-CMOS process technology
Forward and reverse rotation are available
2-, 1-2-, W1-2-, and 2W1-2-phase modes, and one- or two-clock
drives can be selected.
Package: HZIP25-P
Input pull-up resistor equipped with
RESET
pin: R = 100 kΩ (typ.)
Output monitor available with MO I
O
(
MO
) = ±2 mA (MAX.)
Equipped with
RESET
and
ENABLE
pins.
Weight: 9.86 g (typ.)
TA8435HQ:
The TA8435HQ is a Sn-Ag plated product that includes Pb.
The following conditions apply to solderability:
*Solderability
1. Use of Sn-37 Pb solder bath
*solder bath temperature = 230°C
*dipping time = 5 seconds
*number of times = once
*use of R-type flux
2. Use of Sn-3.0Ag-0.5Cu solder bath
*solder bath temperature = 245°C
*dipping time = 5 seconds
*number of times = once
*use of R-type flux
1
2006-3-2
TA8435H/HQ
PIN FUNCTION
PIN No
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
SYMBOL
SG
RESET
ENABLE
OSC
CW / CCW
CK2
CK1
M1
M2
REF IN
Signal GND
L : RESET
L : ENABLE, H: OFF
Chopping oscillation is determined by the external capacitor
Forward / Reverse switching terminal.
Clock input terminal.
Clock input terminal.
Excitation control input
Excitation control input
V
NF
control input
Monitor output
No connection.
Voltage supply for logic.
No connection.
Output power supply terminal.
Output
φ
B
Power GND.
B−ch output current detection terminal.
Output
φB
Output
φ
A
A−ch output current detection terminal.
Power GND
Output
φA
Output power supply terminal.
No connection
FUNCTIONAL DESCRIPTION
MO
NC
V
CC
NC
V
MB
φ
B
PG−B
NF
B
φB
φ
A
NF
A
PG−A
φA
V
MA
NC
4
2006-3-2
微控制器 MCU
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