SLVSEE8B November 2019 – May 2021 DRV8899-Q1
PRODUCTION DATA
PIN | I/O | TYPE | DESCRIPTION | ||
---|---|---|---|---|---|
NAME | NO. | ||||
AOUT1 | 3 | O | Output | Winding A output. Connect to stepper motor winding. | |
AOUT2 | 4 | O | Output | Winding A output. Connect to stepper motor winding. | |
PGND | 2, 7 | — | Power | Power ground. Both PGND pins are shorted internally. Connect to system ground on PCB. | |
BOUT1 | 6 | O | Output | Winding B output. Connect to stepper motor winding | |
BOUT2 | 5 | O | Output | Winding B output. Connect to stepper motor winding | |
CPH | 23 | — | Power | Charge pump switching node. Connect a X7R, 0.022-µF, VM-rated ceramic capacitor from CPH to CPL. | |
CPL | 22 | ||||
DIR | 19 | I | Input | Direction input. Logic level sets the direction of stepping; internal pulldown resistor. | |
DRVOFF | 20 | I | Input | Logic high to disable device outputs; logic low to enable; internal pullup to DVDD. | |
DVDD | 10 | Power | Logic supply voltage. Connect a X7R, 0.47-µF, 6.3-V or 10-V rated ceramic capacitor to GND. | ||
GND | 9 | — | Power | Device ground. Connect to system ground. | |
VREF | 12 | I | Input | Current set reference input. Maximum value 2.2 V. DVDD can be used to provide VREF through a resistor divider. | |
SCLK | 17 | I | Input | Serial clock input. Serial data is shifted out and captured on the corresponding rising and falling edge on this pin. | |
SDI | 16 | I | Input | Serial data input. Data is captured on the falling edge of the SCLK pin | |
SDO | 15 | O | Push Pull | Serial data output. Data is shifted out on the rising edge of the SCLK pin. | |
STEP | 18 | I | Input | Step input. A rising edge causes the indexer to advance one step; internal pulldown resistor. | |
VCP | 24 | — | Power | Charge pump output. Connect a X7R, 0.22-μF, 16-V ceramic capacitor to VM. | |
VM | 1, 8 | — | Power | Power supply. Connect to motor supply voltage and bypass to GND with two 0.01-µF ceramic capacitors (one for each pin) plus a bulk capacitor rated for VM. | |
VSDO | 14 | Power | Supply pin for SDO output. Connect to 5-V or 3.3-V depending on the desired logic level. | ||
nFAULT | 11 | O | Open Drain | Fault indication. Pulled logic low with fault condition; open-drain output requires an external pullup resistor. | |
nSCS | 13 | I | Input | Serial chip select. An active low on this pin enables the serial interface communications. Internal pullup to DVDD. | |
nSLEEP | 21 | I | Input | Sleep mode input. Logic high to enable device; logic low to enter low-power sleep mode; internal pulldown resistor. | |
PAD | - | - | - | Thermal pad. Connect to system ground. |