DRV8847PWPR Dual H-Bridge Motor Driver
♠ Product Description
| Atributo del producto | Valor de atributo |
| Fabricante: | Texas Instruments |
| Categoría de producto: | Motor / Movimiento /Controladores y dispositivos de ignición |
| RoHS: | Detalles |
| Producto: | Stepper Motor Controllers / Drivers |
| Tipo: | Half Bridge |
| Voltaje de alimentación operativo: | 2.7 V to 18 V |
| Corriente de salida: | 2 A |
| Corriente de suministro operativa: | 3 mA |
| Temperatura de trabajo mínima: | - 40 C |
| Temperatura de trabajo máxima: | + 125 C |
| Estilo de montaje: | SMD/SMT |
| Paquete / Cubierta: | HTSSOP-16 |
| Empaquetado: | Reel |
| Empaquetado: | Cut Tape |
| Empaquetado: | MouseReel |
| Marca: | Texas Instruments |
| Características: | Open-Load Detection, Hardware Management I/F, SPI/I2C, Multi H-bridge, PWM interface |
| Régimen del voltaje de carga: | 18 V |
| Sensibles a la humedad: | Yes |
| Número de salidas: | 2 Output |
| Frecuencia de trabajo: | 400 kHz |
| Voltaje de salida: | 5 V |
| Tipo de producto: | Motor / Motion / Ignition Controllers & Drivers |
| Serie: | DRV8847 |
| Cantidad de empaque de fábrica: | 2000 |
| Subcategoría: | PMIC - Power Management ICs |
| Peso de la unidad: | 0.002152 oz |
DRV8847 Dual H-Bridge Motor Driver
The DRV8847 device is a dual H-bridge motor driver for industrial applications, home appliances, ePOS printers, and other mechatronic applications. This device can be used for driving two DC motors, a bipolar stepper motor, or other loads such as relays. A simple PWM interface allows easy interface with the controller. The DRV8847 device operates off a single power supply and supports a wide input supply range from 2.7 to 18 V.
The output stage of the driver consists of N-channel power MOSFETs configured as two full H-bridges to drive motor windings or four independent half bridges (in independent bridge interface). A fixed off time controls the peak current in the bridge which can drive a 1-A load (2-A in parallel mode with proper heat sinking, at 25°C TA).
A low-power sleep mode is provided to achieve a low quiescent current draw by shutting down much of the internal circuitry. Additionally, a torque scalar is provided which dynamically scales the output current through a digital input pin. This feature lets the controller decrease the current required for lower power consumption.
Internal protection functions are provided for undervoltage-lockout, overcurrent protection on each FET, short circuit protection, open-load detection, and overtemperature. Fault conditions are indicated by on the nFAULT pin. The I 2C device variant (DRV8847S) has detailed diagnostics.
• Dual H-bridge motor driver
– Single or dual brushed DC motors
– One bipolar stepper motor
– Solenoid loads
• 2.7-V to 18-V operating voltage range
• High output current per H-bridge
– 1-A RMS driver current at TA = 25°C
– 2-A RMS driver current in parallel mode at TA = 25°C
• Low on-state resistance at VM > 5-V
– 1000 mΩ RDS(ON) (HS + LS) at TA = 25°C • Multiple control interface options
– 4-Pin interface
– 2-Pin interface
– Parallel bridge interface
– Independent bridge interface
• Current regulation with 20-μs fixed off time
• Torque scalar for scaling output current to 50%
• Supports 1.8-V, 3.3-V, 5-V logic inputs
• Low-power sleep mode
– 1.7-µA Sleep mode supply current at VVM = 12-V, TA = 25°C
• I 2C Device Variant Available (DRV8847S)
– Detailed diagnostics on I 2C registers
– Multi-slave operation support
– Supports standard and fast I 2C mode
• Small packages and footprints
– 16 Pin TSSOP (no thermal pad)
– 16 Pin HTSSOP PowerPAD™ package
– 16 Pin WQFN thermal package
• Built-in protection features
– VM undervoltage lockout
– Overcurrent protection
– Open load detection
– Thermal shutdown
– Fault condition indication pin (nFAULT)
• Refrigerator damper and ice maker
• Washers, dryers and dishwashers
• Electronic point-of-sale (ePOS) printers
• Stage lighting equipment
• Miniature circuit breakers and smart meters
