TA8435H Datasheet – Stepping Motor Driver IC

Overview

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.

The TA8435H controls PWM to set the stepping motor winding current to a constant current. The device is a micro−step driver IC used to efficiently drive the stepping motor at low vibration

Part Number	TA8435H
Function	PWM CHOPPER TYPE BIPOLAR STEPPING MOTOR DRIVER
Package	HZIP25-P type
Manufacturer	Toshiba
Datasheet	Download PDF

TA8435H Features

• a 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, 2W1−2 phase 1or 2 clock drives are selectable.
• Package: HZIP25−P
• Input Pull−up Resistor equipped with RESET’ Terminal: R = 100 kΩ(Typ.)
• Output Monitor available with MO’ IO(MO’)= ±2 mA (MAX.)
• Reset and Enable are available with RESET’ and ENABLE’.

MAXIMUM RATINGS (Ta = 25°C)

CHARACTERISTIC		SYMBOL	RATING
				UNIT
Supply Voltage		VCC	5.5	V
Output Voltage		VM	40	V
Output Current	PEAK	IO (PEAK)	2.5	A
	AVE	IO (AVE.)	1.5
MO Output Current		IO ( MO )	±2	mA
Input Voltage		VIN	~VCC	V
Power Dissipation		PD	5 (Note 1)	W
			43 (Note 2)
Operating Temperature		Topr	−40~85	°C
Storage Temperature		Tstg	−55~150	°C
Feed Back Voltage		VNF	1.0	V

Note 1: No heat sink, Note 2: Tc = 85°C

TA8435H Pinout

Pin Definitions

PIN No	SYMBOL	FUNCTIONAL DESCRIPTION
1	SG	Signal GND
2	RESET	L: ENABLE, H: OFF
3	ENABLE	L : ENABLE, H: OFF
4	OSC	Chopping oscillation is determined by the external capacitor
5	CW / CCW	Forward / Reverse switching terminal.
6	CK2	Clock input terminal.
7	CK1	Clock input terminal.
8	M1	Excitation control input
9	M2	Excitation control input
10	REF IN	VNF control input
11	MO	Monitor output
12	NC	No connection.
13	VCC	Voltage supply for logic.
14	NC	No connection.
15	VMB	Output power supply terminal.
16	φ B	Output φ B
17	PG−B	Power GND.
18	NFB	B−ch output current detection terminal.
19	φB	Output φB
20	φ A	Output φ A
21	NFA	A−ch output current detection terminal.
22	PG−A	Power GND
23	φA	Output φA
24	VMA	Output power supply terminal.
25	NC	No connection

Applications

• CNC machines
• Robotics
• 3D printers
• Automated vehicles
• Surveillance systems

TA8435H Datasheet

Download the TA8435H IC Datasheet from the link given below.