Datasheet TB9120AFTG (Toshiba) - 4

TB9120AFTG 6 Pin Arrangement and Function Description 6.1 Pin Arrangement and Function Description
Pin No. Pin name Description 1 VccOUT 5V output. Connect it to a power smoothing capacitor. 2 VDD 5V input. Connect it to VccOUT pin (pin No.1) at the IC outside. 3 OSCM Resistor connected pin to set an output PWM frequency 4 VREF Voltage applied pin to set an output current value 5 GND GND pin 6 TEST2 Test pin in shipping inspection. Do not connect anything. 7 SDT Resistor connected pin to set a stall detection threshold. When not using the stall detection function, use it as open. 8 RSA Current sensing resistor connected pin to set an output current value for phase A 9 OUTA- Negative pin in phase A of a motor 10 OUTA+ Positive pin in phase A of a motor 11 VBAT Battery power pin 12 OUTB- Negative pin in phase B of a motor 13 OUTB+ Positive pin in phase B of a motor 14 RSB Current sensing resistor connected pin to set an output current value for phase B 15 CLK Step clock input pin. Built-in pull-down resistor 100 kΩ 16 TORQUE0 Constant current setting input 0. Built-in pull-down resistor 100 kΩ 17 TORQUE1 Constant current setting input 1. Built-in pull-down resistor 100 kΩ 18 DMODE0 Excitation mode setting input 0. Built-in pull-down resistor 100 kΩ 19 DMODE1 Excitation mode setting input 1. Built-in pull-down resistor 100 kΩ 20 DMODE2 Excitation mode setting input 2. Built-in pull-down resistor 100 kΩ 21 START Electrical angle initializing input. Built-in pull-down resistor 100 kΩ 22 BSTBY Standby input. Built-in pull-down resistor 100 kΩ 23 CW/CCW Rotation direction setting input. Built-in pull-down resistor 100 kΩ 24 ENABLE Motor driving output enabling input. Built-in pull-down resistor 100 kΩ 25 TEST1 Test pin in shipping inspection. Connect it to GND. 26 MO Electrical angle monitoring signal output. Open drain output pin. 27 DIAG Anomaly detection flag signal output. Open drain output pin. 28 SD Stall detection flag signal output. Open drain output pin. - E-PAD Reverse side of bed mounted with IC chip. Connect it to GND. © 2020 4 2020-05-12 Toshiba Electronic Devices & Storage Corporation