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TB6600HG(O)

42V/5A bipolar stepper driver, PWM chopper, 1/16 microstep, built-in FETs, HZIP-25

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Manufacturer Part：

TB6600HG(O)

Package：

HZIP-25-P-1.00F (15.0 x 12.5 x 5.0mm, through-hole with tab)

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Description

Product Overview

The TB6600HG is a PWM chopper-type bipolar stepper motor driver IC from Toshiba with 50V/5A peak output, 1/16 microstepping, and built-in MOSFETs in a HZIP-25 power package.

Key Specifications

Supply Voltage (VCC) 8V to 42V (50V abs max)
Output Current (peak) 5.0A (abs max), 4.5A (operating max)
On Resistance (per bridge) 0.4Ω typical (upper + lower)
Microstepping 1/1, 1/2, 1/4, 1/8, 1/16 step
Control Interface Clock + direction, enable, reset
Chopper Frequency Set by external resistor (Rosc)
TSD Threshold 160°C (typical)
ISD Threshold 6.5A (overcurrent detection)
UVLO Threshold 8V (typical)
Operating Temperature -20°C to +85°C
Package HZIP-25 (through-hole, with heatsink tab)

Features

  • Integrated power MOSFETs: 0.4Ω Ron (upper + lower)
  • 5A peak output current with built-in H-bridge
  • Selectable microstepping: full to 1/16 step
  • Clock-direction interface for simple MCU control
  • PWM chopper current regulation with external frequency set
  • Thermal shutdown (TSD) with auto or latch recovery
  • Overcurrent detection (ISD) at 6.5A
  • Undervoltage lockout (UVLO) protection
  • ALERT output for TSD/ISD fault indication
  • Standby function for low power consumption

Applications

  • 3D printers and CNC stepper drives
  • Industrial automation positioning
  • Robot arm and pan-tilt controllers
  • Textile and packaging machinery
  • Office automation and ATMs

The TB6600HG is a PWM chopper-type bipolar stepper motor driver IC from Toshiba with integrated power MOSFETs capable of driving up to 4.5A per phase continuously (5A peak) from a 42V supply. The built-in 0.4Ω MOSFETs eliminate the need for external transistors. The device supports microstepping from full step to 1/16 step via three mode-select pins. A simple clock-direction interface allows easy MCU control. The PWM chopper regulates winding current with the chopping frequency set by an external resistor. Protection features include thermal shutdown (TSD) at 160°C with configurable auto-recovery or latch mode, overcurrent detection (ISD) at 6.5A, and undervoltage lockout (UVLO). The HZIP-25 through-hole package provides excellent thermal dissipation with a tab for heatsink mounting.

The TB6600HG uses a PWM chopper scheme to regulate current through the two motor windings. The CLK pin receives step pulses; each rising edge advances the internal indexer by one microstep. The indexer generates the two sinusoidal phase current targets according to the selected microstep resolution. The PWM chopper compares the actual winding current (sensed through the internal MOSFETs) with the target: when the current exceeds the target, the high-side MOSFET turns off for the chopper off-time, allowing the current to decay through the low-side MOSFET. The off-time is set by the external Rosc resistor. The direction of rotation is controlled by the CW/CCW pin. The ENABLE pin enables or disables all outputs, and the RESET pin returns the indexer to the initial position (home state). The TSD circuit monitors junction temperature; when it exceeds 160°C, all outputs are disabled and the ALERT pin goes low. The LATCH/AUTO pin selects whether TSD recovery is automatic (when temperature drops to 90°C) or requires an ENABLE toggle. The ISD circuit monitors current through each MOSFET; if overcurrent is detected (>6.5A), all outputs are immediately disabled until ENABLE is toggled. The UVLO circuit disables outputs when VCC drops below 8V.

Pin Name Type Description
1 ALERT Output TSD/ISD fault indicator (open-drain)
2 SGND Power Signal ground
3 CLK Input Step clock input (rising edge active)
4 CW/CCW Input Rotation direction (high=CW, low=CCW)
5 ENABLE Input Output enable (high=enabled, low=disabled)
6 RESET Input Reset indexer to home state (active low)
7-9 M1/M2/M3 Input Microstep mode select (1/1 to 1/16)
10 STANDBY Input Standby mode (low power)
11 ROSC Analog Chopper frequency setting resistor
12 LATCH/AUTO Input TSD recovery mode select
13 MO Output Monitor output (phase state)
14 VCC Power Logic supply
15-19 OUT1A/1B/2A/2B Output Motor winding outputs (H-bridge)
20-25 PGND/VMM Power Power ground and motor supply (8-42V)
  • 3D Printers: 1/16 microstepping produces smooth, quiet stepper motion; HZIP package handles 3A continuous without heatsink
  • CNC Drives: 4.5A output and 42V supply drive NEMA 17/23 steppers; TSD protection for sustained operation
  • Robot Arms: Clock-direction interface simplifies MCU firmware; ENABLE for coordinated multi-axis control
  • Textile Machines: ISD overcurrent protection prevents damage from mechanical jams and stalls
  • ATM/Office: Standby mode reduces power consumption between operations
Model Manufacturer Key Difference Package Specs
TB67S109AFTG Toshiba Modern replacement, 50V/4A, QFN-48, 1/128 microstep – –
DRV8825PWPR TI 45V/2.5A, 1/32 microstep, HTSSOP-28 – –
A4988SETTR-T Allegro 35V/2A, 1/16 microstep, QFN-28 – –
TMC2209 Trinamic 29V/2A, StealthChop, 1/256, QFN-28 – –
LV8729V onsemi/Rohm 40V/4A, 1/128 microstep, HZIP-25 – –

TB6600HG is a 4.5A/42V bipolar stepper motor driver from Toshiba in HZIP-25. The TB6600FTG is the surface-mount version. The TB67S109AFTG provides 3.5A with 1/128 microstepping in smaller QFN-48. The DRV8825 from TI offers 2.5A/32V with 1/32 stepping in HTSSOP-28. The A4988 from Allegro provides 2A/35V with 1/16 stepping for 3D printers. The TMC5130 from Trinamic offers 1/256 stepping with StallGuard and CoolStep in QFN-48. For higher current, TB6600HG remains the best through-hole option at 4.5A.

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