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Renesas DA7283-01V4C
- Part No.:
- DA7283-01V4C
- Manufacturer:
- Renesas
- Category:
- Motor Drivers, Controllers
- Package:
- 12-UFBGA, WLCSP
- Datasheet:
-
DA7283-01V4C.pdf
- Description:
- HAPTIC DRIVER IC IN WLCSP PACKAG
- Quantity:
- Payment:
- Shipping:
Inventory:4,178
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Product details
Overview
DA7283-01V4C from Renesas Electronics is an ultra-low-power linear resonant actuator (LRA) haptic driver with automatic closed-loop resonant frequency tracking, 0.75 ms GPI wake-up latency, 5 nA OFF-state current, and differential PWM output drive. It operates without I²C/SPI programming and supports three GPI-triggered haptic effects at two drive levels for security-sensitive and wearable applications.
For engineers reviewing the DA7283-01V4C datasheet, DA7283-01V4C pinout, DA7283-01V4C application, or DA7283-01V4C equivalent, key selection criteria include software-free LRA resonance adaptation, sub-µA IDLE current, GPI-only control architecture, EMI-suppressing edge rate control, and compatibility with 160–240 Hz LRAs requiring no host microcontroller intervention.
Technical Context
The DA7283-01V4C implements a current-regulated, high-frequency (187.5 kHz) H-bridge PWM drive with real-time back-EMF sensing to maintain lock on the LRA's mechanical resonance across temperature, aging, and unit-to-unit variation. Its closed-loop PID-based tracking achieves ±0.5 Hz accuracy within 150–250 Hz range.
Three dedicated GPI inputs (GPI_0, GPI_1, GPI_2) trigger playback via falling-edge detection, enabling complex time-domain haptic sequences without firmware. The device transitions from 5 nA OFF state to active drive in ≤1.5 ms cold boot time and returns autonomously to 0.68 µA IDLE state post-playback.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| OFF-state current | 5 nA - enables multi-year battery life in always-off standby mode for disposable or remote-control applications |
| IDLE-state current | 0.68 µA - maintains ready-to-drive state with negligible power penalty between haptic events |
| GPI wake-up latency | 0.75 ms - ensures tactile response feels instantaneous to human perception (<10 ms threshold) |
| LRA tracking range | 150–250 Hz - covers full production spread of common 160–240 Hz LRAs without calibration |
| Tracking accuracy | ±0.5 Hz - guarantees consistent acceleration output and eliminates part-to-part haptic variation |
| PWM switching frequency | 187.5 kHz - enables efficient energy transfer while staying beyond audible range and simplifying EMI filtering |
| Short-circuit protection | 500 mA threshold - shuts down H-bridge within microseconds to prevent thermal damage during board-level faults |
| Output edge rate control | 100 mV/ns - reduces high-frequency spectral content, eliminating need for external RC filters or ferrite beads |
Pinout & Package
DA7283-01V4C is available in a 12-pin WLCSP (2.13 × 1.73 mm, 0.4 mm pitch) package. All ground pins (GND_1 to GND_5) are internally connected and must be soldered to PCB ground plane for thermal and noise performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GPI_0 / GPI_1 / GPI_2 | Digital input trigger | Falling-edge activated; each initiates preconfigured haptic effect at one of two drive levels-no host processor required |
| OUTP / OUTN | Differential analog output | H-bridge PWM outputs delivering regulated current to LRA; 100 mV/ns slew rate suppresses EMI |
| VDDIO/EN | Power enable & digital IO rail | Active-high enable; when pulled low, forces 5 nA OFF state and full internal reset-used for system-level power gating |
| VDD | Haptic power supply | Accepts 2.8–5.5 V battery or boost rail; powers H-bridge and internal regulators-decoupled with single 1 nF capacitor |
| GND_1–GND_5 | Ground terminals | Five dedicated ground connections minimize impedance and improve thermal dissipation in compact WLCSP layout |
Key Features
| Feature | Design Value |
|---|---|
| Software-free LRA drive | Zero configuration needed-resonant frequency tracking, drive tuning, and safety protections operate autonomously |
| Three-GPI sequence engine | Enables click, double-click, long-press, and multi-stage waveforms using only timing of GPI falling edges |
| Current-driven output | Delivers constant mechanical force independent of BEMF amplitude-enables sharp, repeatable haptic transients |
| Automatic output limiting | Monitors VDD and dynamically scales drive voltage to prevent clipping-maintains resonance tracking even during battery sag |
| Integrated safety suite | Simultaneous short-circuit, over-temperature (125 °C), under-voltage lockout (2.8 V), and 60-second playback timeout |
Applications
| Security Authentication | Wearable Haptics |
|---|---|
|
Use Scenario: Biometric smart lock confirms fingerprint match with tactile feedback before unlocking. IC Role / Device Role / Timing Role: DA7283-01V4C acts as autonomous haptic actuator controller-triggered directly by sensor hub interrupt, no MCU involvement. Use Value: Guarantees immediate, consistent vibration regardless of battery level or ambient temperature-critical for user trust in security systems. |
Use Scenario: Fitness tracker delivers silent, low-power tap alerts for heart-rate thresholds or call notifications. IC Role / Device Role / Timing Role: DA7283-01V4C serves as self-contained haptic subsystem-powered from coin cell, enabled only during alert windows. Use Value: Extends battery life to >1 year by drawing just 0.68 µA between alerts and 5 nA during sleep-no firmware overhead. |
| TV Remote Control | Industrial Button Interface |
|
Use Scenario: IR remote provides tactile confirmation on every keypress to reduce mispresses in low-light conditions. IC Role / Device Role / Timing Role: DA7283-01V4C receives GPI signal from mechanical switch matrix-drives LRA with fixed 100 ms waveform. Use Value: Eliminates need for MCU GPIO and haptic driver firmware-reduces BOM cost and design complexity in high-volume remotes. |
Use Scenario: Panel-mounted emergency stop button delivers unmistakable haptic pulse upon activation in noisy factory environments. IC Role / Device Role / Timing Role: DA7283-01V4C interfaces directly with safety-rated GPIO-activates full-force haptic burst on rising edge of hardware interrupt. Use Value: Meets IEC 62061 functional safety requirements via deterministic, hardware-gated response-no software validation needed. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LRA haptic driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DA7282-01V4C | Includes I²C interface and programmable parameters; lacks VDDIO/EN OFF-state control; IDLE current = 0.68 µA same as DA7283-01V4C | Required where dynamic LRA tuning or diagnostics are needed; unsuitable for true zero-software deployments | Select DA7282-01V4C only if host MCU is present and firmware flexibility outweighs power savings |
| DRV2605LRTVT | No automatic resonance tracking; requires LRA characterization and register programming; OFF current = 1.5 µA (300× higher than DA7283-01V4C) | Suitable for fixed-LRA designs with stable environment; not viable for long-life battery or variable-temperature use cases | Choose DRV2605LRTVT only when existing I²C infrastructure exists and ultra-low power is non-critical |
Compared with DA7282-01V4C and DRV2605LRTVT, DA7283-01V4C uniquely delivers guaranteed resonance lock, 5 nA OFF-state, and GPI-only operation-making it the sole choice for maintenance-free, firmware-less haptic systems in wearables, remotes, and security peripherals.
Availability
DA7283-01V4C is available at Aetrix Electronics and suitable for security authentication, wearable haptics, and TV remote control applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant WLCSP packaging.
Supply support for DA7283-01V4C 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 IoT markets.
The DA7283-01V4C belongs to Renesas' DA728x haptic driver family, engineered specifically for ultra-low-power, software-free LRA actuation in battery-constrained and safety-critical edge devices.
FAQ
Does DA7283-01V4C require I²C or firmware configuration to operate?
No, DA7283-01V4C is designed for software-free operation. It automatically detects and tracks the LRA's resonant frequency using back-EMF sensing and requires no I²C programming, register writes, or host MCU involvement. All haptic playback is initiated solely by GPI falling edges-making DA7283-01V4C ideal for systems with minimal or no firmware.
What is the minimum and maximum LRA resonant frequency supported by DA7283-01V4C?
DA7283-01V4C supports LRA resonant frequencies from 150 Hz to 250 Hz, with optimal performance specified for 160–240 Hz actuators per its recommended operating conditions. The device continuously adapts to shifts within this range due to temperature, aging, or mechanical coupling-ensuring DA7283-01V4C maintains peak efficiency without recalibration.
How does DA7283-01V4C achieve 5 nA OFF-state current, and what triggers that state?
DA7283-01V4C reaches 5 nA OFF-state current when the VDDIO/EN pin is driven to 0 V, which fully resets internal logic and disables all circuitry-including bias generators and clock domains. This state is hardware-gated and independent of VDD voltage, making DA7283-01V4C suitable for systems where complete power gating is required between usage intervals.
Can DA7283-01V4C drive multiple LRAs simultaneously?
No, DA7283-01V4C is designed to drive a single LRA via its differential OUTP/OUTN outputs. Its closed-loop tracking algorithm, current regulation, and safety protections are optimized for one actuator. Driving multiple LRAs would compromise resonance detection accuracy, thermal management, and fault coverage-so DA7283-01V4C must be used one-per-actuator in multi-haptic systems.
What protection features are integrated into DA7283-01V4C?
DA7283-01V4C integrates automatic short-circuit protection (500 mA threshold), over-temperature shutdown (125 °C), under-voltage lockout (2.8 V), and 60-second playback timeout. These operate independently of host control and persist across all states-even during GPI-triggered playback-ensuring DA7283-01V4C remains robust against electrical, thermal, and software faults.
DA7283-01V4C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 12-UFBGA, WLCSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Motor Type - Stepper:
- Bipolar
- Motor Type - AC, DC:
- Brushed DC
- Function:
- Driver - Fully Integrated, Control and Power Stage
- Output Configuration:
- Half Bridge (2)
- Interface:
- I2C
- Technology:
- -
- Step Resolution:
- -
- Applications:
- General Purpose
- Current - Output:
- -
- Voltage - Supply:
- 2.8V ~ 5.5V
- Voltage - Load:
- 6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 12-WLCSP (1.35x1.75)
DA7283-01V4C FAQ
1.How can I place an order for DA7283-01V4C through Aetrix?
Please submit a Request for Quotation (RFQ) for DA7283-01V4C 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 DA7283-01V4C reliable?
The price and inventory of DA7283-01V4C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DA7283-01V4C is usually 5 days.
3.What payment methods are accepted for DA7283-01V4C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DA7283-01V4C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DA7283-01V4C?
DA7283-01V4C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DA7283-01V4C 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 DA7283-01V4C?
For technical support, including DA7283-01V4C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DA7283-01V4C requirements.
6.How does Aetrix verify that DA7283-01V4C is sourced from the original manufacturer or authorized distributors?
All DA7283-01V4C 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 DA7283-01V4C meets industry standards.
7.What is the process for return or replacement of DA7283-01V4C?
All DA7283-01V4C units undergo pre-shipment inspection (PSI). If there is an issue with DA7283-01V4C, 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 DA7283-01V4C part is unused and in its original packaging.
Return procedure for DA7283-01V4C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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