SLVSHH3A March 2025 – August 2025 DRV8263-Q1
PRODUCTION DATA
The DRV8263-Q1 device provides three separate modes to support different control schemes with the EN/IN1 and PH/IN2 pins. The control mode is selected through the MODE setting. MODE is a 3-level setting based on the MODE pin for the HW variant or S_MODE bits in the CONFIG3 register for the SPI variant as summarized in Table 7-3:
| MODE pin | S_MODE bits | Device Mode | Description |
|---|---|---|---|
|
RLVL1 |
00b | PH/EN mode | full-bridge mode where EN/IN1 is the PWM input, PH/IN2 is the direction input |
| RLVL2 |
01b |
Independent mode |
Independent control for 2 half-bridges |
|
RLVL3 |
10b, 11b | PWM mode | full-bridge mode where EN/IN1 and PH/IN2 control the PWM respectively depending on the direction |
In the HW variant, MODE pin is latched during device initialization following power-up or wake-up from sleep. Update during operation is blocked.
In the SPI variant of the device, the mode setting can be changed anytime the SPI communication is available by writing to the S_MODE bits. This change is immediately reflected.
The inputs can accept static or pulse-width modulated (PWM) voltage signals for either 100% or PWM drive modes. The device input pins can be powered before VM is applied. By default, the nSLEEP and DRVOFF pins have an internal pull-down and pull-up resistor respectively, to maintain the outputs are Hi-Z if no inputs are present. Both the EN/IN1 and PH/IN2 pins also have internal pull down resistors. The sections below show the truth table for each control mode.
The device automatically generates the desired dead-time needed during transitioning between the high-side and low-side FET on the switching half-bridge. This timing is based on internal FET gate-source voltage feedback. No external timing is required. This scheme provides for minimum dead time, while guaranteeing no shoot-through current.