Gehäuseinformationen
| Gehäuse | Pins HTQFP (PAP) | 64 |
| Betriebstemperaturbereich (°C) -10 to 50 |
| Gehäusemenge | Träger 160 | JEDEC TRAY (10+1) |
Merkmale von DRV8809
- Configurable to Eight Modes of Combination Motor Driver
- Bipolar Stepper Motor Driver
- 16-Step Current-Mode Control
- 800-mA Average Output Current as Stepper
Motor Drive
- DC Motor Driver
- 800-mA Maximum Continuous Current and
8-A/500-ns or 3-A/100-ms Peak Current for
Each DC Motor Drive
- 800-mA Maximum Continuous Current and
- Low ON resistance Rds(ON) = 0.55 Ω at TJ = 25°C (Typ)
- Bipolar Stepper Motor Driver
- Three Integrated DC-DC Converters
- On/Off Selectable Using C_SELECT Pin and Serial
Interface - Outputs Programmable With External Resistor Network
From 1.5 V to VDIN × 0.8 - 1.5-A Output Capability for All Three Channels
- On/Off Selectable Using C_SELECT Pin and Serial
- 7-V to 40-V Operating Voltage Range for DC-DC Converters
- Two Serial Interfaces for Communications
- Thermally Enhanced Surface-Mount 64-Pin QFP PowerPAD™
Package (Eco-Friendly – RoHS and No Sb/Br) - Power-Down Function (Deep-Sleep Mode)
- Reset Signal Output (Active Low)
- Reset (All Clear) Control Input
Beschreibung von DRV8809
The DRV8809/DRV8810 provides an integrated motor driver solution. The chip has four H-bridges internally and is configurable to eight different modes of combination motor driver control.
The output driver block for each H-bridge consists of N-channel power MOSFETs configured as full H-bridges to drive the motor windings. The stepper motor control has a 16-step mode programmable through the 3-wire serial interface (SPI). The SPI input pins are 3.3-V compatible and 5-V tolerant.
The DRV8809/DRV8810 has three DC-DC switch-mode buck converters to generate a programmable output voltage from 1.5 V to 80% of VDIN (channel A) or up to 10 V (for channel B and channel C), with up to 1.5-A load current capability. The outputs are selected using the C_SELECT terminal at start-up or using serial interface during operation.
An internal shutdown function is provided for overcurrent protection (OCP), short-circuit protection, overvoltage/undervoltage lockout (UVLO), and thermal shutdown (TSD). Also, the device has a reset function that operates at power on and at input to the In-Reset pin.