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TB6600HG

Stepper motor driver, 4.5A, 50V, HZIP-25

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Pieza del fabricante：

TB6600HG

Paquete：

HZIP-25 (28.5 x 15.9 x 5.0 mm)

Descripción

TB6600HG Overview

The TB6600HG is a PWM chopper-type bipolar stepping motor driver from Toshiba, with maximum operating voltage of 50V, output current of 4.5A, supporting 1/32 microstepping, in an HZIP-25 package, widely used in 3D printers and CNC controllers.

Key Features

Supply voltage: 8V-50V
Maximum output current: 4.5A
Microstep resolution: 1/32
Chopper frequency: 100kHz
Thermal shutdown protection
Overcurrent protection

Introducción del producto:TB6600HG Presentación del producto

The TB6600HG is a PWM chopper-type bipolar stepper motor driver IC from Toshiba in a HZIP-25 through-hole package, supporting motor voltages up to 50 V and output currents up to 5.0 A peak (4.5 A operating maximum). It features microstepping resolution of full step, 1/2, 1/4, 1/8, and 1/16 with built-in sinusoidal PWM current control. The device integrates MOSFET H-bridge outputs with 0.4 Ohm typical on-resistance (upper plus lower), over-current detection, thermal shutdown at 170 C, and under-voltage lockout. Step and direction interface enables simple microcontroller control with built-in 100 kOhm input pull-down resistors.

Principio de funcionamiento:TB6600HG Principio de funcionamiento

The TB6600HG controls bipolar stepper motor current using a fixed-off-time PWM chopper scheme. The H-bridge MOSFET outputs drive current through the motor winding in the forward or reverse direction based on the phase logic. Current flows through the winding, through the sense resistor to ground. When the voltage across the sense resistor exceeds the reference voltage set by the VREF input, the comparator triggers and the bridge enters the decay mode for the programmed off-time period. During slow decay, both low-side MOSFETs are turned on, allowing current to recirculate through the winding. During fast decay, the bridge reverses polarity, actively driving current back toward the supply. The TB6600HG uses a 40 percent fast decay mode where the final 40 percent of the off-time is fast decay and the remainder is slow decay, optimizing current regulation across the speed range. The microstepping logic divides each full step into up to 16 microsteps by modulating the current reference levels through an internal DAC, producing smooth sinusoidal winding currents. The CLK input advances the microstep sequencer on each rising edge, and the CW/CCW input sets the rotation direction. The M1, M2, and M3 inputs select the step resolution mode. The standby mode (M1=M2=M3=low or high) disables all outputs to minimize power consumption.

Descripción de la clavija:TB6600HG Definición y funciones de las clavijas

Pin	Nombre	Descripción
1	OUT1A	H-bridge A output 1; motor winding A connection
2	PGND1	Power ground for H-bridge A
3	OUT2A	H-bridge A output 2; motor winding A connection
4	PGND2	Power ground for H-bridge B
5	OUT2B	H-bridge B output 2; motor winding B connection
6	PGND3	Power ground
7	OUT1B	H-bridge B output 1; motor winding B connection
8-9	VCC (x2)	Motor power supply (8 V to 42 V); both pins must be connected
10	CLK	Step clock input; rising edge advances one microstep
11	CW/CCW	Direction input; high = CW, low = CCW
12	ENABLE	Enable input; low = outputs active, high = outputs disabled (Hi-Z)
13	RESET	Reset input; low = resets phase to initial position
14	M1	Microstep mode select bit 1
15	M2	Microstep mode select bit 2
16	M3	Microstep mode select bit 3
17	TQ	Torque setting input; adjusts output current ratio
18	VREF	Current reference voltage; sets peak winding current via external resistor divider
19	OSCM	Chopping frequency setting; connect external resistor (51 kOhm = 40 kHz)
20	ALERT	Over-current detection output; active low
21	MO	Phase monitor output; indicates current step position

Application Scenarios:In which products and applications isTB6600HG usado

CNC Machine Drives: 3-axis and 4-axis CNC router and mill stepper motor control with microstepping
3D Printers: Precision filament extruder and XY gantry stepper motor driving
Robotics: Bipolar stepper motor actuation in articulated robot joints and linear stages
Textile Machinery: Multi-axis yarn feed and fabric patterning with smooth microstepping
Medical Dispensers: Precision syringe pump and valve stepper motor control

Alternative Models:What chips are recommended as replacements for TB6600HG

Modelo	Fabricante	Imax	Tensión	Microstep	Paquete
TB6600FTG	Toshiba	4.5 A	50 V	1/32	HTSSOP-48
DRV8825	Texas Instruments	2.5 A	45 V	1/32	HTSSOP-28
A4988	Allegro	2.0 A	35 V	1/16	TSSOP-28
TMC5160	Trinamic	3.0 A	60 V	1/256	QFN-48
LV8729	onsemi	2.0 A	40 V	1/128	QFP-44

TB6600HG is a 4.5A/42V bipolar stepper motor driver from Toshiba in HZIP-25 with up to 1/16 microstepping. The TB6600FTG is the surface-mount HTSSOP version. TB67S109AFTG provides higher 3.5A with 1/128 microstepping in a smaller QFN package. For higher current, TB6600HG outputs 4.5A peak. The DRV8825 from TI offers 2.5A with 1/32 microstepping in HTSSOP-28 as a lower-cost alternative. A4988 from Allegro provides 2A with 1/16 microstepping for 3D printer applications.