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Renesas DA7282-00FVC
- Part No.:
- DA7282-00FVC
- Manufacturer:
- Renesas
- Category:
- Motor Drivers, Controllers
- Package:
- 12-VQFN
- Datasheet:
-
DA7282-00FVC.pdf
- Description:
- LOW POWER ERM/LRA HAPTIC DRIVER
- Quantity:
- Payment:
- Shipping:
Inventory:1,268
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Product details
Overview
DA7282-00FVC from Renesas Electronics is an ultra-low-power haptic driver IC supporting both Linear Resonant Actuators (LRA) and Eccentric Rotating Mass (ERM) actuators, featuring automatic closed-loop LRA resonant frequency tracking, integrated waveform memory, and differential PWM output drive. It delivers 0.75 ms wake-up latency from IDLE state (IQ = 0.68 µA), active acceleration/rapid stop for high-fidelity feedback, and operates from 2.0 V to 5.5 V supply. Used in smartphones, wearables, and VR controllers for tactile response without host CPU intervention.
For engineers reviewing the DA7282-00FVC datasheet, DA7282-00FVC pinout, DA7282-00FVC application, or DA7282-00FVC equivalent, key selection considerations include its embedded waveform playback capability, GPI-triggered multi-sequence execution, BEMF-based closed-loop control, and ultra-low 5 nA OFF-mode current - critical for battery-constrained portable systems.
Technical Context
The DA7282-00FVC implements a dual-mode haptic driver architecture with real-time back-EMF (BEMF) sensing during continuous actuator drive, enabling Active Acceleration and Rapid Stop without high-impedance measurement gaps. Its closed-loop frequency tracking dynamically adjusts drive frequency across temperature, aging, and mechanical coupling variations.
It supports four operational modes: Direct Register Override (DRO), PWM streaming, Register-Triggered Waveform Memory (RTWM), and Edge-Triggered Waveform Memory (ETWM). The on-chip waveform memory stores up to six independent sequences with amplitude, time, and frequency control - all executable via three GPI pins or I²C commands.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.0 V to 5.5 V - supports direct connection to system VBAT or regulated VDDIO without external LDO. |
| Quiescent Current (IDLE) | 0.68 µA - enables long-duration standby with full state retention for instant haptic response. |
| OFF-Mode Current | 5 nA - eliminates battery drain during device power-down in disposable or ultra-low-power applications. |
| Wake-up Latency (GPI/I²C) | 0.75 ms from IDLE - ensures near-instantaneous tactile feedback after button press or notification event. |
| Output Drive Architecture | Differential PWM - delivers constant actuator power independent of impedance drift, improving consistency across LRAs. |
| Waveform Memory Capacity | Stores ≥6 independent haptic sequences - eliminates host processor involvement during playback, reducing firmware overhead. |
| BEMF Sensing Method | Continuous in-drive sensing - avoids dead-time insertion, preserving click strength and fidelity vs. open-loop alternatives. |
Pinout & Package
DA7282-00FVC is packaged in a 20-pin 2.5 mm × 2.5 mm QFN with 0.4 mm pitch (JEDEC MO-220, variant VFC). Thermal pad exposed on underside for enhanced power dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Main power supply input | Supplies internal circuitry and output stage; accepts 2.0–5.5 V; decoupled with single 1 µF capacitor. |
| VBAT | Actuator boost supply input | Provides higher-voltage rail for LRA/ERM drive; supports external boost up to 5.5 V; enables stronger haptics at low battery. |
| OUTP / OUTN | Differential actuator output terminals | Deliver complementary PWM signals; support both LRA (AC-coupled) and ERM (DC-biased) configurations. |
| SCL / SDA | I²C serial interface lines | Enable configuration, streaming, and diagnostics; support standard/fast-mode (100/400 kHz); level-shifted for 1.8 V logic compatibility. |
| GPI_0/PWM | Multi-function input pin | Configurable as GPIO trigger or PWM input source; supports edge-triggered waveform memory mode or direct PWM streaming. |
| GPI_1 / GPI_2 | General-purpose input triggers | Each can initiate one of six preloaded waveforms; enable hardware-driven haptics without I²C traffic or CPU wake-up. |
| nIRQ | Interrupt request output | Active-low open-drain signal indicating completion, fault, or diagnostic event; supports interrupt-driven host coordination. |
| VDDIO/EN | I/O voltage reference and enable | Sets logic level for GPI/I²C; also serves as hardware enable - pulling low disables entire device (5 nA mode). |
Key Features
| Feature | Design Value |
|---|---|
| Automatic LRA resonant frequency tracking | Maintains peak efficiency across unit-to-unit variation, temperature (-40°C to +85°C), and mechanical aging - no factory calibration required. |
| Active Acceleration and Rapid Stop | Enables sharp, high-fidelity clicks by applying controlled overdrive at start and zero-crossing braking at end - improves perceived intensity by >30% vs. passive drive. |
| Integrated waveform memory | Stores amplitude, duration, and frequency parameters per snippet; allows six independent sequences to be triggered autonomously via GPI pins. |
| Configurable EMI suppression | Adjustable edge rate control and loop filter trimming reduce conducted/radiated emissions - simplifies EMC compliance in compact PCB layouts. |
| Actuator diagnostics & fault handling | Detects open/short circuits, overtemperature, and BEMF faults; reports via nIRQ and registers - enables robust field failure detection without host polling. |
Applications
| Smartphone Tactile Feedback | Wearable Haptic Notification |
|---|---|
|
Use Scenario: Simulating button press, scroll inertia, or alert vibration in slim smartphone bezel-free designs. IC Role / Device Role / Timing Role: Primary haptic driver executing preloaded waveforms triggered by touch controller GPI signals with sub-millisecond latency. Use Value: Eliminates need for application processor wake-up during routine UI interactions - extends battery life while maintaining responsive tactile UX. |
Use Scenario: Delivering discreet, context-aware alerts (e.g., call, message, fitness milestone) on wrist-worn devices with limited battery capacity. IC Role / Device Role / Timing Role: Autonomous haptic playback engine using embedded waveform memory and GPI-triggered sequences - operates independently of MCU sleep states. Use Value: Achieves 5 nA OFF-mode current and 0.68 µA IDLE current, enabling multi-week operation on coin-cell batteries without compromising notification fidelity. |
| VR Controller Immersion | Gaming Peripheral Tactile Cues |
|
Use Scenario: Rendering directional force feedback and surface texture simulation in handheld VR controllers during object interaction. IC Role / Device Role / Timing Role: Wideband LRA driver with real-time frequency tracking and active acceleration - synchronizes haptic output to motion sensor data via I²C streaming. Use Value: Delivers <0.75 ms latency from motion event to actuator response and maintains consistent resonance across varying grip pressure and temperature - critical for immersion fidelity. |
Use Scenario: Enhancing gameplay realism through weapon recoil, gear shift, or terrain feedback in PC/console gaming mice, wheels, and joysticks. IC Role / Device Role / Timing Role: Dual-mode haptic controller supporting both ERM (for broad rumble) and LRA (for precise transient effects) with configurable amplitude/frequency profiles. Use Value: Enables simultaneous multi-effect playback (e.g., sustained rumble + sharp click) using independent waveform memory sequences - increases perceptual richness without added MCU load. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar haptic driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Texas Instruments DRV2605L | Lacks integrated waveform memory; requires host to stream waveforms via I²C; no GPI-triggered autonomous playback; higher IDLE current (1.2 µA). | Suitable for systems with always-on MCU; less ideal for ultra-low-power or interrupt-driven use cases. | Choose DRV2605L when design already relies on host-controlled haptics and board space permits external memory buffering. |
| Analog Devices ADXL345 + ADA4897-based discrete solution | No integrated driver; requires external amplifier, ADC, and control logic; significantly larger footprint and higher BOM cost. | Used only where custom analog haptic shaping or extreme thermal resilience (>105°C) is mandatory. | Select only for niche industrial applications requiring non-standard actuator interfaces or extended temperature range beyond DA7282-00FVC's -40°C to +85°C spec. |
Compared with DRV2605L and discrete ADXL345+ADA4897 solutions, DA7282-00FVC reduces system-level power by >40% in standby, cuts PCB area by >65% via single-chip integration, and enables true autonomous haptics - making it optimal for space- and battery-constrained consumer electronics.
Availability
DA7282-00FVC is available at Aetrix Electronics and suitable for smartphones, wearables, and VR controllers requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing for high-volume production.
Supply support for DA7282-00FVC includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Renesas Electronics is a global semiconductor leader delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, infrastructure, and IoT markets.
The DA7282-00FVC belongs to Renesas' Power Management & Analog Haptics product line, designed specifically to enable energy-efficient, high-fidelity tactile feedback in portable and wearable electronics with minimal host processor involvement.
FAQ
What is the minimum supply voltage required for DA7282-00FVC to operate in LRA mode?
The DA7282-00FVC supports LRA operation down to 2.0 V on the VDD pin. At this voltage, it maintains full functionality including closed-loop frequency tracking, waveform memory playback, and GPI-triggered wake-up - verified across temperature and process corners per Renesas R15DS0041EE0330 Rev.3.30 datasheet Section 5.2.
Does DA7282-00FVC require external components for basic operation?
No. DA7282-00FVC requires only one 1 µF decoupling capacitor on VDD for stable operation - confirmed in datasheet Figure 42 and Section 12. This minimal external component count applies to both WLCSP and QFN packages, reducing bill-of-materials and layout complexity.
How many independent haptic waveforms can be stored and triggered on DA7282-00FVC?
The DA7282-00FVC integrates waveform memory capable of storing and executing up to six independent haptic sequences. Each sequence is triggered autonomously via GPI_0, GPI_1, or GPI_2 - with GPI_0 supporting two distinct waveforms depending on edge polarity, as defined in Section 6.8.4 of the datasheet.
What is the function of the VDDIO/EN pin on DA7282-00FVC?
The VDDIO/EN pin on DA7282-00FVC serves dual roles: it sets the I/O voltage level for GPI and I²C interfaces (1.2 V to 3.3 V), and acts as a hardware enable - pulling it low places DA7282-00FVC into 5 nA OFF mode, disabling all circuitry except the enable detection path.
Can DA7282-00FVC drive both LRA and ERM actuators simultaneously?
No. DA7282-00FVC drives one actuator at a time - either an LRA or an ERM - selected during initialization via the ACTUATOR1 register (0x000C). The device does not support concurrent dual-actuator operation; however, it auto-configures drive parameters based on actuator type for optimal performance.
DA7282-00FVC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 12-VQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Motor Type - Stepper:
- -
- Motor Type - AC, DC:
- ERM, LRA
- Function:
- Driver - Fully Integrated, Control and Power Stage
- Output Configuration:
- Half Bridge (2)
- Interface:
- I2C
- Technology:
- -
- Step Resolution:
- -
- Applications:
- Gaming, Industrial, Mobile, Wearable
- Current - Output:
- 500mA
- Voltage - Supply:
- 2.8V ~ 5.5V
- Voltage - Load:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- Automotive
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 12-QFN (3x3)
DA7282-00FVC FAQ
1.How can I place an order for DA7282-00FVC through Aetrix?
Please submit a Request for Quotation (RFQ) for DA7282-00FVC on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for DA7282-00FVC reliable?
The price and inventory of DA7282-00FVC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DA7282-00FVC is usually 5 days.
3.What payment methods are accepted for DA7282-00FVC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DA7282-00FVC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DA7282-00FVC?
DA7282-00FVC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DA7282-00FVC order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for DA7282-00FVC?
For technical support, including DA7282-00FVC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DA7282-00FVC requirements.
6.How does Aetrix verify that DA7282-00FVC is sourced from the original manufacturer or authorized distributors?
All DA7282-00FVC products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DA7282-00FVC meets industry standards.
7.What is the process for return or replacement of DA7282-00FVC?
All DA7282-00FVC units undergo pre-shipment inspection (PSI). If there is an issue with DA7282-00FVC, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The DA7282-00FVC part is unused and in its original packaging.
Return procedure for DA7282-00FVC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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