The DRV870xD-Q1 devices are small half bridge gate drivers that use two external N-channel MOSFETs targeted to drive unidirectional brushed-DC motors or solenoid loads.
A PWM interface allows simple interfacing to controller circuits. An internal sense amplifier provides adjustable current control. Integrated Charge-Pump allows for 100% duty cycle support and can be used to drive external reverse battery switch. Independent Half Bridge mode allows sharing of half bridges to control multiple DC motors sequentially in a cost-efficient way. The gate driver includes circuitry to regulate the winding current using fixed off-time PWM current chopping.
The DRV870xD-Q1 devices include Smart Gate Drive technology to remove the need for any external gate components (resistors and Zener diodes) while protecting the external FETs. The Smart Gate Drive architecture optimizes dead time to avoid any shoot-through conditions, provides flexibility in reducing electromagnetic interference (EMI) with programmable slew-rate control and protects against any gate-short conditions. Additionally, active and passive pulldowns are included to prevent any dv/dt gate turn on.
| Typ | Titel | Datum | ||
|---|---|---|---|---|
| * | Data sheet | DRV870xD-Q1 Automotive Half-Bridge Gate Driver datasheet (Rev. B) | PDF | HTML | 20 Sep 2018 |
| Application note | Using DRV to Drive Solenoids (Rev. A) | PDF | HTML | 24 Apr 2022 | |
| Application note | Best Practices for Board Layout of Motor Drivers (Rev. B) | PDF | HTML | 14 Okt 2021 | |
| Application note | Understanding Smart Gate Drive (Rev. D) | 01 Mär 2021 | ||
| Application note | Methods to Configure Current Regulation for Brushed and Stepper Motors (Rev. B) | PDF | HTML | 19 Jan 2021 | |
| Application note | Detecting Short to Battery and Ground Conditions with TI Motor Gate Drivers | PDF | HTML | 29 Mai 2020 | |
| White paper | Smart Gate Drive | 02 Jul 2019 | ||
| Application note | Protecting Automotive Motor Drive Systems from Reverse Polarity Conditions (Rev. A) | 19 Feb 2019 | ||
| Application note | Cut-Off Switch in High-Current Motor-Drive Applications (Rev. A) | 20 Aug 2018 | ||
| Application note | Relay Replacement for Brushed DC Motor Drive in Automotive Applications | 14 Nov 2016 |
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| Gehäuse | Pins | CAD-Symbole, Footprints und 3D-Modelle |
|---|---|---|
| VQFN (RHB) | 32 | Ultra Librarian |
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