TB6600HG

TOSHIBA BiCD Integrated Circuit Silicon Monolithic

TB6600HG
PWM Chopper-Type bipolar Stepping Motor Driver IC
The TB6600HG is a PWM chopper-type single-chip bipolar sinusoidal
micro-step stepping motor driver. TB6600HG
Forward and reverse rotation control is available with 2-phase,
1-2-phase, W1-2-phase, 2W1-2-phase, and 4W1-2-phase excitation
modes.
2-phase bipolar-type stepping motor can be driven by only clock signal
with low vibration and high efficiency.

Features
HZIP25-P-1.00F
• PWM constant current drive single-chip bipolar sinusoidal
micro-step stepping motor driver
• BiCD 0.13 (50 V) process Weight
• Ron (upper + lower) = 0.4 Ω (typ.) HZIP25-P-1.00F: 7.7g(typ.)
• Selectable excitation mode (1/1, 1/2, 1/4, 1/8, and 1/16 step)
• Output withstand voltage: VCC = 8 to 42 V (operation range)
VCC = 50 V (absolute maximum ratings, maximum value)
• Output current: IOUT = 5.0 A (absolute maximum ratings, peak, within 100ms)
IOUT = 4.5 A (operating range, maximal value)
• Built-in thermal shutdown (TSD) circuit, over-current detection (ISD) circuit, and under voltage lock out
(UVLO) circuit.
• Single power supply

Absolute Maximum Ratings (Ta = 25°C)

Characteristic Symbol Rating Unit
Power supply voltage VCC 50 V
Output current (per one phase) IO (PEAK) 5.0/phase (Note 1) A
I (ALERT)
Drain current (ALERT, DOWN) 1 mA
I (MO)
Input voltage VIN 6 V
Note 1:T = 100ms
3.2 (Note 2)
Power dissipation PD W
40 (Note 3) Note 2:Ta = 25°C, No heat sink

Operating temperature Topr −30 to 85 °C Note 3:Ta = 25°C, with infinite heat sink.
Storage temperature Tstg −55 to 150 °C

Operating Range (Ta = 25°C)

Characteristic Symbol Min Typ. Max Unit
Power supply voltage VCC 8.0 ― 42 V
Output current IOUT ― ― 4.5 A
VIN 0 ― 5.5 V
Input voltage
Vref 0.3 ― 3.5 V
Clock frequency fCLK ― ― 200 kHz
Chopping frequency fchop 20 40 60 kHz
OSC frequency fOSC 2.0 4.0 6.0 MHz
Please use the contents published in this material as a reference. Please inquire about a formal technical data sheet.

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Block Diagram

Pin No. I/O Symbol Function

1 Output ALERT TSD / ISD monitor pin
2 ― SGND Signal ground
Torque (output current) setting input
3 Input TQ
pin
4 Input Latch/Auto Select a return type for TSD.
5 Input Vref Voltage input for 100% current level
6 Input VccB B channel Power supply
7 Input M1 Excitation mode setting input pin
8 Input M2 Excitation mode setting input pin
9 Input M3 Excitation mode setting input pin
10 Output OUT2B B channel output 2
B channel output current detection
11 ― NFB
pin
12 Output OUT1B B channel output 1
13 ― PGNDB Power ground
14 Output OUT2A A channel output 2
A channel output current detection
15 ― NFA
pin
16 Output OUT1A A channel output 1
17 ― PGNDA Power ground
18 Input ENABLE Enable signal input pin
19 Input RESET Reset signal input pin
20 Input VCCA A channel Power supply
21 Input CLK CLK pulse input pin
22 Input CW/CCW Forward/reverse control pin
Resistor connection pin for internal
23 ― OSC
oscillation setting
Control side connection pin for
24 Output Vreg
power capacitor
25 Output MO Electrical angle monitor pin

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Electrical Characteristics (Ta = 25°C, VCC = 24 V)

Characteristic Symbol Test Condition Min Typ. Max Unit

High VIN (H) M1, M2, M3, CW/CCW, CLK, RESET, 2.0 ― 5.5
Input voltage V
Low VIN (L) ENABLE, Latch/Auto, and TQ −0.2 ― 0.8

Output open, RESET: H, ENABLE: H,

Icc1 M1:L, M2:L, M3:H (1/1-step mode) ― 3.1 7
VCC supply current CLK:L mA

Icc3 Standby mode (M1:L, M2:L, M3:L) ― 1.8 4

twCLKH
Minimum CLK pulse width 2.2 ― ― μs
twCLKL

VOL MO
Output residual voltage IOL = 1 mA ― ― 0.5 V
VOL ALERT
External capacitor = 0.1 μF
Internal constant voltage Vreg 4.5 5.0 5.5 V
(in standby mode)

TSD operation
TSD Design target value ― 160 ― °C
temperature (Note)
TSD hysteresis(Note) TSDhys Design target value ― 90 ― °C
Over current detection
ISD All outputs, Design target value ― 6.5 ― A
current (Note)
Oscillation frequency fOSC External resistance ROSC = 51 kΩ 2.8 4 5.2 MHz

Output ON resistor Ron U +Ron L IOUT = 4 A ― 0.4 0.6 Ω

Note: Pre-shipment testing is not performed.

Description of Functions
(1) Excitation Settings
Input Mode
M1 M2 M3 (Excitation)

L L L Standby mode (Operation of the internal circuit is almost turned off.)

L L H 1/1 (2-phase excitation, full-step)
1/2A type (1-2 phase excitation A type)
L H L
( 0% - 71% - 100% )
1/2B type (1-2 phase excitation B type)
L H H
( 0% - 100% )
H L L 1/4 (W1-2 phase excitation)
H L H 1/8 (2W1-2 phase excitation)
H H L 1/16 (4W1-2 phase excitation)
H H H Standby mode (Operation of the internal circuit is almost turned off.)

(2)Function (I/O truth table)

Input
Output mode
CLK CW/CCW RESET ENABLE
L H H CW
H H H CCW
X X L H Initial mode
X X X L Z
X: Don’t Care

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Notes on Contents
Block Diagrams
Some of the functional blocks, circuits, or constants in the block diagram may be omitted or simplified for
explanatory purposes.

IC Usage Considerations
Notes on handling of ICs
[1] The absolute maximum ratings of a semiconductor device are a set of ratings that must not be exceeded, even
for a moment. Do not exceed any of these ratings.
Exceeding the rating(s) may cause the device breakdown, damage or deterioration, and may result injury by
explosion or combustion.
[2] Use an appropriate power supply fuse to ensure that a large current does not continuously flow in case of over
current and/or IC failure. The IC will fully break down when used under conditions that exceed its absolute
maximum ratings, when the wiring is routed improperly or when an abnormal pulse noise occurs from the
wiring or load, causing a large current to continuously flow and the breakdown can lead smoke or ignition. To
minimize the effects of the flow of a large current in case of breakdown, appropriate settings, such as fuse
capacity, fusing time and insertion circuit location, are required.
[3] If your design includes an inductive load such as a motor coil, incorporate a protection circuit into the design to
prevent device malfunction or breakdown caused by the current resulting from the inrush current at power
ON or the negative current resulting from the back electromotive force at power OFF. IC breakdown may
cause injury, smoke or ignition.
Use a stable power supply with ICs with built-in protection functions. If the power supply is unstable, the
protection function may not operate, causing IC breakdown. IC breakdown may cause injury, smoke or
ignition.
[4] Do not insert devices in the wrong orientation or incorrectly.
Make sure that the positive and negative terminals of power supplies are connected properly.
Otherwise, the current or power consumption may exceed the absolute maximum rating, and exceeding the
rating(s) may cause the device breakdown, damage or deterioration, and may result injury by explosion or
combustion.
In addition, do not use any device that is applied the current with inserting in the wrong orientation or
incorrectly even just one time.
Points to remember on handling of ICs
(1) Over current Protection Circuit
Over current protection circuits (referred to as current limiter circuits) do not necessarily protect ICs under
all circumstances. If the over current protection circuits operate against the over current, clear the over
current status immediately.
Depending on the method of use and usage conditions, such as exceeding absolute maximum ratings can
cause the over current protection circuit to not operate properly or IC breakdown before operation. In addition,
depending on the method of use and usage conditions, if over current continues to flow for a long time after
operation, the IC may generate heat resulting in breakdown.
(2) Thermal Shutdown Circuit
Thermal shutdown circuits do not necessarily protect ICs under all circumstances. If the thermal shutdown
circuits operate against the over temperature, clear the heat generation status immediately.
Depending on the method of use and usage conditions, such as exceeding absolute maximum ratings can
cause the thermal shutdown circuit to not operate properly or IC breakdown before operation.
(3) Heat Radiation Design
In using an IC with large current flow such as power amp, regulator or driver, please design the device so that
heat is appropriately radiated, not to exceed the specified junction temperature (Tj) at any time and condition.
These ICs generate heat even during normal use. An inadequate IC heat radiation design can lead to decrease
in IC life, deterioration of IC characteristics or IC breakdown. In addition, please design the device taking into
considerate the effect of IC heat radiation with peripheral components.
(4) Back-EMF
When a motor rotates in the reverse direction, stops or slows down abruptly, a current flow back to the
motor’s power supply due to the effect of back-EMF. If the current sink capability of the power supply is small,
the device’s motor power supply and output pins might be exposed to conditions beyond absolute maximum
ratings. To avoid this problem, take the effect of back-EMF into consideration in system design.
(5) Others
Utmost care is necessary in the design of the output, VCC, VM, and GND lines since the IC may be destroyed
by short-circuiting between outputs, air contamination faults, or faults due to improper grounding, or by
short-circuiting between contiguous pins.

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