引脚定义与内部结构
| 引脚 | 符号 | 名称 |
|---|---|---|
| 24 | NC | |
| 23 | NC | |
| 22 | GND | |
| 21 | OUTB- | |
| 20 | OUTB- | |
| 19 | GND | |
| 18 | GND | |
| 17 | OUTA- | |
| 16 | OUTA- | |
| 15 | GND | |
| 14 | NC | |
| 13 | NC | |
| 48 | VREFA | |
| 47 | VREFB | |
| 46 | GND | |
| 44 | LO | |
| 43 | NC | |
| 42 | NC | |
| 41 | VCC | |
| 40 | NC | |
| 39 | VM | |
| 38 | NC | |
| 37 | NC | |
| 36 | RSB | |
| 35 | RSB | |
| 34 | NC | |
| 33 | OUTB+ | |
| 32 | OUTB+ | |
| 31 | NC | |
| 30 | NC | |
| 29 | GND | |
| 28 | NC | |
| 27 | OUTB- | |
| 26 | OUTB- | |
| 25 | GND |
数据来源：原厂规格书引脚图
关键参数速览
- 正向电流 IF
- circumstances. The TB67S109A
- 电源电压 VCC
- 6.0
- 工作温度 TA
- -20 to 85
产品特点 Features
- BiCD process integrated monolithic IC.
- Capable of controlling 1 bipolar stepping motor. P-WQFN48-0707-0.50-003
- PWM controlled constant-current drive.
- Weight 0.10g (typ.)
- Allows full, half, quarter, 1/8, 1/16, 1/32 step operation.
- Low on-resistance (High + Low side=0.49Ω(typ.)) MOSFET
- FNG output stage.
- High efficiency motor current control mechanism (Advanced
- Dynamic Mixed Decay)
- High voltage and current (For specification, please refer to absolute
- TB67S109AFTG/FNG
- TB67S109A Block diagram
- DMODE0 Motor
- OSC-Clock
- Standby Oscillator
- Converter
绝对最大额定值 Absolute Maximum Ratings（TA = 25°C）
超过下表数值可能造成器件永久损坏，设计时请留余量。
| 特性 | 符号 | 额定值 | 单位 | 备注 |
|---|---|---|---|---|
| Motor power supply | VM | 50 | V ― | |
| Motor output voltage | Vout | 50 | V ― | |
| Motor output current | Iout | 4.0 | A (Note | 1) |
| Internal Logic power supply | VCC | 6.0 | V When | externally applied. |
| VIN(H) | 6.0 | V ― | ||
| VIN(L) | -0.4 | V ― | ||
| MO output voltage | VMO | 6.0 | V ― | |
| LO output voltage | VLO | 6.0 | V ― | |
| MO Inflow current | IMO | 30 | mA ― | |
| LO Inflow current | ILO | 30 | mA ― | |
| WQFN48 | PD | 1.3 | W (Note | 2) |
| HTSSOP48 | PD | 1.3 | W (Note | 2) |
| Operating temperature | TOPR | -20 to 85 | °C ― | |
| Storage temperature | TSTR | -55 to 150 | °C ― | |
| Junction temperature | Tj(max) | 150 | °C ― | |
| considerations, depending on | ambient temperature | and | board conditions. | |
| maximum junction temperature, | Tj (max), will | not exceed | 120°C. | |
| moment. Do not exceed any of | these ratings. | |||
| voltage exceeding its rated maximum | is applied. | |||
| described later should also be | referred to. | |||
| Operation Ranges (Ta=-20 to | 85°C) | |||
| Motor power supply | VM 10 | 24 47 | V ― | |
| Motor output current | Iout ― | 1.5 3.0 | A (Note | 1) |
| VIN(H) 2.0 | ― 5.5 | V Logic | input High Level | |
| VIN(L) 0 | ― 0.8 | V Logic | input Low Level | |
| MO output pin voltage | VMO ― | 3.3 5.0 | V ― | |
| LO output pin voltage | VLO ― | 3.3 5.0 | V ― | |
| Clock input frequency | fCLK ― | ― 100 | kHz ― | |
| Chopper frequency | fchop(range) 40 | 70 150 | kHz ― | |
| Vref input voltage | Vref GND 23 | 2.0 3.6 | V ― | 2020-2-4 |
数据来源：原厂规格书
电气特性 Electrical Characteristics（TA = 25°C）
| 特性 | 符号 | 测试条件 | 最小 | 典型 | 最大 | 单位 |
|---|---|---|---|---|---|---|
| 50% | 90% | 26 | 50% 90% 50% | 10% | 2020-2-4 |
产品应用与封装尺寸
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图纸取自该型号原厂规格书的应用电路与封装尺寸章节，点击图片可放大查看原始尺寸标注。