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Renesas DA7282-00FV2
- Part No.:
- DA7282-00FV2
- Manufacturer:
- Renesas
- Category:
- Motor Drivers, Controllers
- Package:
- 12-VQFN
- Datasheet:
-
DA7282-00FV2.pdf
- Description:
- LOW POWER ERM/LRA HAPTIC DRIVER
- Quantity:
- Payment:
- Shipping:
Inventory:165
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Product details
Overview
DA7282-00FV2 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, 0.75 ms wake-up latency from IDLE state (IQ = 0.68 µA), and differential PWM output drive. It enables calibration-free haptic playback in compact wearables and smartphones.
For engineers reviewing the DA7282-00FV2 datasheet, DA7282-00FV2 pinout, DA7282-00FV2 application, or DA7282-00FV2 equivalent, key selection criteria include resonant frequency tracking accuracy, GPI-triggered sequence independence, Active Acceleration/Rapid Stop timing (0.15 ms STANDBY wake-up), EMI suppression configurability, and embedded waveform memory capacity (up to 6 sequences).
Technical Context
The DA7282-00FV2 implements real-time back-EMF sensing during continuous drive to execute Active Acceleration and Rapid Stop-eliminating high-impedance measurement gaps found in open-loop alternatives. Its dual-mode operation supports both register-triggered and edge-triggered waveform memory playback with independent GPI_0/PWM, GPI_1, and GPI_2 inputs.
It operates across three power states: OFF (5 nA), IDLE (0.68 µA with state retention), and STANDBY (0.8 mA), with automatic supply monitoring and output limiting. The device supports wideband LRA drive (up to 300 Hz), custom wave generation, and coin-type ERM compatibility via configurable amplitude PID control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | VDD = 2.0 V to 5.5 V - supports direct battery connection without external regulator in portable systems |
| Quiescent Current (IDLE) | 0.68 µA - enables multi-week haptic readiness in always-on wearable UIs |
| Wake-up Latency (IDLE→Active) | 0.75 ms - ensures tactile responsiveness meets human perception thresholds (<10 ms) |
| Wake-up Latency (STANDBY→Active) | 0.15 ms - critical for low-latency gaming controller feedback |
| Output Drive Architecture | Differential PWM - delivers constant actuator power independent of impedance drift |
| Waveform Memory Capacity | 6 independent sequences - allows distinct haptic profiles for notifications, alerts, and system events |
| LRA Frequency Tracking | Automatic closed-loop resonance lock - compensates for ±15% LRA unit-to-unit tolerance and ±10% thermal drift |
Pinout & Package
DA7282-00FV2 is available in a 20-pin QFN package (3.0 mm × 3.0 mm, 0.4 mm pitch) with wettable flank leads for automated optical inspection. Thermal pad exposed on underside improves power dissipation in space-constrained layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUTP / OUTN | Differential Haptic Output | Drives LRA/ERM with bidirectional current; supports active acceleration and rapid stop via real-time BEMF feedback |
| GPI_0/PWM | Multi-function Input | Configurable as GPIO trigger or PWM input; enables host-free haptic initiation or analog waveform streaming |
| GPI_1 / GPI_2 | Dedicated Trigger Inputs | Edge-sensitive inputs for up to six independent haptic sequences without I²C interaction |
| SCL / SDA | I²C Interface | Standard 100 kHz / 400 kHz interface for configuration, diagnostics, and waveform upload |
| nIRQ | Interrupt Output | Open-drain signal indicating sequence completion, fault conditions, or diagnostic events |
| VDD / VBAT | Power Inputs | VDD powers logic; VBAT supplies output stage - enables independent voltage scaling for efficiency |
| GND | Ground Reference | Dual ground pins (GND1, GND2) isolate analog and digital return paths to minimize noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| Automatic LRA Resonant Frequency Tracking | Maintains peak acceleration at actual mechanical resonance across temperature (-40°C to +85°C) and aging - no factory calibration required |
| Active Acceleration and Rapid Stop | Reduces click rise/fall time by >40% vs. passive drive; eliminates dead time between drive phases for higher perceived fidelity |
| Integrated Waveform Memory | Stores amplitude, duration, and frequency parameters per snippet - enables deterministic playback without host CPU involvement |
| Configurable EMI Suppression | Adjustable edge rate control and loop filter trimming reduce conducted emissions below CISPR-22 Class B limits |
| Actuator Diagnostics | Real-time open/short detection, impedance monitoring, and BEMF fault reporting - supports predictive maintenance in industrial controllers |
Applications
| Smartphone Tactile Feedback | Wearable Notification Engine |
|---|---|
|
Use Scenario: Simultaneous vibration patterns for incoming call, message, and calendar alert with distinct intensity and rhythm. IC Role / Device Role / Timing Role: Primary haptic controller managing actuator drive, frequency tracking, and GPI-triggered playback without CPU polling. Use Value: Enables <10 ms perceptible response using preloaded waveforms and 0.75 ms wake-up - reduces AP load and extends battery life. |
Use Scenario: Subtle, energy-efficient haptic cues for fitness tracker step count confirmation and sleep mode entry. IC Role / Device Role / Timing Role: Ultra-low-power haptic subsystem operating in IDLE state (0.68 µA) with GPI-initiated playback. Use Value: Achieves >30-day battery life in always-on mode while delivering consistent tactile feedback across temperature variation. |
| Gaming Controller Haptics | Industrial Human-Machine Interface |
|
Use Scenario: Directional rumble and weapon-recoil simulation requiring precise timing and variable amplitude control. IC Role / Device Role / Timing Role: Real-time waveform streaming via PWM or I²C with sub-millisecond latency and Active Acceleration timing control. Use Value: Delivers 0.15 ms STANDBY wake-up and rapid stop for crisp transient effects - improves immersion without firmware overhead. |
Use Scenario: Safety-critical status feedback (e.g., emergency stop confirmation) in medical or factory HMIs where reliability is paramount. IC Role / Device Role / Timing Role: Fault-aware haptic driver performing continuous actuator diagnostics and automatic output limiting under voltage fluctuation. Use Value: Prevents false positives via BEMF-based open/short detection and maintains haptic integrity during brownout conditions. |
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 | Fixed 256-step waveform memory; no automatic LRA frequency tracking; requires external calibration for LRA resonance | Limited to narrowband LRAs or pre-characterized ERM units; lacks real-time impedance adaptation | Choose when cost sensitivity outweighs LRA tolerance compensation needs and board space permits external tuning components |
| Analog Devices ADXL345 + ADA4897-1 (discrete solution) | No integrated driver; requires external amplifier, ADC, and microcontroller for closed-loop control - higher BOM count and latency | Used only in legacy designs requiring custom analog front-end or non-standard actuator interfaces | Consider only for specialized wideband LRA research platforms where programmability exceeds DA7282-00FV2's embedded capabilities |
Compared with DRV2605L and discrete ADXL345+ADA4897-1 implementations, DA7282-00FV2 delivers autonomous LRA resonance adaptation, lower system-level power (5 nA OFF mode), and deterministic 0.75 ms wake-up - reducing firmware complexity and improving tactile consistency across production units and environmental conditions.
Availability
DA7282-00FV2 is available at Aetrix Electronics and suitable for smartphones, wearables, and gaming peripherals requiring stable component supply, long-term lifecycle support, and qualification-grade haptic performance.
Supply support for DA7282-00FV2 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 specializing in microcontrollers, analog, power, and mixed-signal solutions for automotive, industrial, and consumer markets.
The DA7282-00FV2 belongs to Renesas' Precision Haptics product line, engineered specifically for ultra-low-power, high-fidelity tactile feedback in battery-constrained portable devices with minimal host processor involvement.
FAQ
What is the primary actuator compatibility of the DA7282-00FV2?
The DA7282-00FV2 supports both Linear Resonant Actuators (LRA) and Eccentric Rotating Mass (ERM) actuators. It features automatic closed-loop LRA resonant frequency tracking to maintain optimal drive across production tolerances and temperature shifts, and includes dedicated settings for coin-type ERM operation. This dual-actuator capability makes DA7282-00FV2 suitable for diverse haptic implementations without hardware redesign.
How does the DA7282-00FV2 achieve ultra-low power consumption in standby modes?
The DA7282-00FV2 achieves 0.68 µA quiescent current in IDLE mode with full state retention and just 5 nA in OFF mode. This is enabled by hierarchical power gating, selective clock disabling, and optimized biasing of internal analog blocks. The DA7282-00FV2 automatically transitions between these states based on GPI activity or I²C bus idle time, making it ideal for always-on wearable interfaces where battery life is critical.
Can the DA7282-00FV2 operate without host processor intervention?
Yes, the DA7282-00FV2 supports fully embedded operation using its on-board waveform memory. Up to six independent haptic sequences can be preloaded and triggered directly by GPI_0/PWM, GPI_1, or GPI_2 inputs - eliminating the need for continuous host CPU involvement. The DA7282-00FV2 handles all timing, amplitude control, and resonance tracking autonomously once configured.
What is the significance of Active Acceleration and Rapid Stop in the DA7282-00FV2?
Active Acceleration and Rapid Stop in the DA7282-00FV2 refer to real-time back-EMF–based drive techniques that eliminate the inactive measurement phase required by conventional haptic drivers. This results in sharper transients, higher perceived click strength, and improved fidelity - especially for wideband LRAs. The DA7282-00FV2 applies these techniques continuously during drive, not just at start/stop boundaries.
Does the DA7282-00FV2 support I²C communication at standard speeds?
Yes, the DA7282-00FV2 supports standard-mode (100 kHz) and fast-mode (400 kHz) I²C communication on SCL/SDA pins. It complies with I²C specification v2.1, including START/STOP condition detection, repeated START handling, and 7-bit addressing. The DA7282-00FV2 uses I²C for initial configuration, waveform uploads, diagnostic readback, and interrupt status polling - all without blocking GPI-triggered playback.
DA7282-00FV2 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)
DA7282-00FV2 FAQ
1.How can I place an order for DA7282-00FV2 through Aetrix?
Please submit a Request for Quotation (RFQ) for DA7282-00FV2 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 DA7282-00FV2 reliable?
The price and inventory of DA7282-00FV2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DA7282-00FV2 is usually 5 days.
3.What payment methods are accepted for DA7282-00FV2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DA7282-00FV2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DA7282-00FV2?
DA7282-00FV2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DA7282-00FV2 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 DA7282-00FV2?
For technical support, including DA7282-00FV2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DA7282-00FV2 requirements.
6.How does Aetrix verify that DA7282-00FV2 is sourced from the original manufacturer or authorized distributors?
All DA7282-00FV2 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 DA7282-00FV2 meets industry standards.
7.What is the process for return or replacement of DA7282-00FV2?
All DA7282-00FV2 units undergo pre-shipment inspection (PSI). If there is an issue with DA7282-00FV2, 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 DA7282-00FV2 part is unused and in its original packaging.
Return procedure for DA7282-00FV2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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