Datasheet TMC7300 (TRINAMIC) - 8
| Fabricante | TRINAMIC |
| Descripción | POWER DRIVER FOR DC MOTORS. Low Voltage Driver for One or Two DC Motors up to 2A (2.4A) peak – UART based Control for Torque and Velocity. 4 Half Bridge Peripheral Driver Option |
| Páginas / Página | 43 / 8 — Pin. Number Type. Function. 2.3 Package Outline / Halfbridge mode |
| Formato / tamaño de archivo | PDF / 1.1 Mb |
| Idioma del documento | Inglés |
Pin. Number Type. Function. 2.3 Package Outline / Halfbridge mode
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TMC7300 DATASHEET (Rev. 1.01 / 2019-NOV-06) 8
Pin Number Type Function
Motor supply voltage. Provide filtering capacity >10µF near pin with VS 18 shortest possible loop to GND pad. OA1 19 DC motor 1 output 2 Sense resistor connection for coil A or DC motor 1. Place sense BRA 20 resistor to GND near pin. Exposed Connect the exposed die pad to a GND plane. Provide as many as - die pad possible vias for heat transfer to GND plane.
2.3 Package Outline / Halfbridge mode
A 1 1 B R B R B OA VS O B 20 19 18 17 16 1 OA2 15 OB2 VCP 2 14 GND 3 TMC7300 A1 13 1.8VOUT (4 Halfbridge) 4 A2 © B. Dwersteg, 12 DIAG 5 TRINAMIC B1 PAD 11 VIO/NSTDBY 6 7 8 9 10 T E B2 EN R D M A O W U M P NE
Figure 2.2 TMC7300 Pinning Top View Stepper Driver – QFN20, 3x3mm², 0.4mm pitch 2.4 Signal Descriptions / Halfbridge mode Pin Number Type Function
OA2 1 Bridge A output 2 Charge pump voltage. Optionally tie to VS using 1nF to 100nF VCP 2 capacitor. May be left unconnected if maximum 2 pins change at a time. A1 3 DI Bridge A output 1 polarity A2 4 DI Bridge A output 2 polarity B1 5 DI Bridge B output 1 polarity B2 6 DI Bridge B output 2 polarity Enable input. The power stage becomes switched off (all motor EN 7 DI outputs floating) when this pin becomes driven to a low level. Also used to release driver after fault shutdown. ENUART 8 DI tie to GND MODE 9 DI tie to VIO Common PWM for high-side drivers. Tie high to enable high-side PWM 10 DI drivers as controlled by A and B inputs. Influences high-side driver, only. 1.8V to 5V IO supply voltage for all digital pins. IC goes to standby VIO/NSTDBY 11 mode and resets, when this pin is pulled to GND. DIAG 12 DO Diagnostic output. High level upon driver error. Reset by EN=low. Output of internal 1.8V regulator. Attach 100nF ceramic capacitor to 1.8VOUT 13 GND near to pin for best performance. Provide the shortest possible loop to the GND pad. www.trinamic.com
Pin Number Type Function
Motor supply voltage. Provide filtering capacity >10µF near pin with VS 18 shortest possible loop to GND pad. OA1 19 DC motor 1 output 2 Sense resistor connection for coil A or DC motor 1. Place sense BRA 20 resistor to GND near pin. Exposed Connect the exposed die pad to a GND plane. Provide as many as - die pad possible vias for heat transfer to GND plane.
2.3 Package Outline / Halfbridge mode
A 1 1 B R B R B OA VS O B 20 19 18 17 16 1 OA2 15 OB2 VCP 2 14 GND 3 TMC7300 A1 13 1.8VOUT (4 Halfbridge) 4 A2 © B. Dwersteg, 12 DIAG 5 TRINAMIC B1 PAD 11 VIO/NSTDBY 6 7 8 9 10 T E B2 EN R D M A O W U M P NE
Figure 2.2 TMC7300 Pinning Top View Stepper Driver – QFN20, 3x3mm², 0.4mm pitch 2.4 Signal Descriptions / Halfbridge mode Pin Number Type Function
OA2 1 Bridge A output 2 Charge pump voltage. Optionally tie to VS using 1nF to 100nF VCP 2 capacitor. May be left unconnected if maximum 2 pins change at a time. A1 3 DI Bridge A output 1 polarity A2 4 DI Bridge A output 2 polarity B1 5 DI Bridge B output 1 polarity B2 6 DI Bridge B output 2 polarity Enable input. The power stage becomes switched off (all motor EN 7 DI outputs floating) when this pin becomes driven to a low level. Also used to release driver after fault shutdown. ENUART 8 DI tie to GND MODE 9 DI tie to VIO Common PWM for high-side drivers. Tie high to enable high-side PWM 10 DI drivers as controlled by A and B inputs. Influences high-side driver, only. 1.8V to 5V IO supply voltage for all digital pins. IC goes to standby VIO/NSTDBY 11 mode and resets, when this pin is pulled to GND. DIAG 12 DO Diagnostic output. High level upon driver error. Reset by EN=low. Output of internal 1.8V regulator. Attach 100nF ceramic capacitor to 1.8VOUT 13 GND near to pin for best performance. Provide the shortest possible loop to the GND pad. www.trinamic.com