TB6608FNG(C8OEL,HZ

马达/运动/点火控制器和驱动器 2-phase stepping motor Drvr 15V

TOSHIBA Bi−CD Integrated Circuit Silicon Monolithic Stepping Motor Driver IC

The TB6608FNG is a PWM constant-current type stepping motor driver IC designed for sinusoidal-input micro-step control of stepping motors.

The TB6608FNG can be used in applications that require 2-phase, 1-2-phase, W1-2-phase and 2W1-2 phase excitation modes. The TB6608FNG is capable of forward and reverse driving of a 2-phase bipolar stepping motor using only a clock signal.

Features

• Motor power supply voltage: VM = 15 V (max)

• Control power supply voltage: VCC = 2.7 to 6 V

• Output current: Iout ≤ 0.8 A (max)

• Output ON-resistance: Ron = 1.5 Ω (upper and lower sum@VM = 5 V)

• Decoder that enables microstep control with the clock signal

• Selectable phase excitation modes (2, 1-2, W1-2 and 2W1-2)

• Internal pull-down resistors on inputs: 200 kΩ (typ.)

• Output monitor pin ( MO )

• Thermal shutdown (TSD) and undervoltage lockout (UVLO) circuits

• Small surface-mount package (SSOP20: 0.65 mm lead pitch)

Pin No. Symbol Functional Description Remarks

1 VCC Power supply pin for logic block VCC (opr) = 2.7 to 5.5 V

2 STBY Standby input See the Input Signals and Operating Modes table.

3 OSC Connection pin for an external capacitor

used for internal oscillation

4 M1 Excitation mode setting input 1 See the Excitation Mode Settings table.

5 M2 Excitation mode setting input 2 See the Excitation Mode Settings table.

6 VM Power supply pin for output VM (opr) = 2.5 to 13.5 V

7 CW/CCW Rotation direction select input See the Input Signals and Operating Modes table.

8 BO2 B-phase output 2 Connect BO2 to a motor coil pin.

9 RFB Connection pin for a B-phase output

current detection resistor

10 BO1 B-phase output 1 Connect BO1 to a motor coil pin.

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