Renesas DA7283-01FVC

Overview

DA7283-01FVC 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 DA7283-01FVC datasheet, DA7283-01FVC pinout, DA7283-01FVC application, or DA7283-01FVC equivalent, this page delivers verified electrical specs, GPI timing behavior, LRA impedance compatibility (8–25 Ω), thermal resistance (R_θJA = 88.2 °C/W for QFN), and software-free operation constraints critical for battery-powered haptic system design.

Technical Context

The DA7283-01FVC implements a current-regulated, H-bridge differential PWM architecture switching at 187.5 kHz to maximize mechanical energy transfer to LRAs. Its closed-loop BEMF sensing continuously tracks resonant frequency between 150–250 Hz with ±0.5 Hz accuracy, compensating for temperature drift, aging, and unit-to-unit LRA variation.

Three digital input GPI pins (GPI_0/GPI_1/GPI_2) trigger playback on falling edges with sub-millisecond latency; VDDIO/EN enables hardware-controlled OFF mode (5 nA) and IDLE mode (0.68 µA). Edge rate control (100 mV/ns) on OUTP/OUTN suppresses EMI without external RC filters, while automatic protections cover short circuit (500 mA threshold), over-temperature (>125 °C), and under-voltage lockout (<2.8 V).

Key Specifications

Pinout & Package

DA7283-01FVC is packaged in a 12-pin QFN (3 mm × 3 mm, 0.5 mm pitch) with wettable flanks. Pin mapping is validated per Renesas R15DS0040EE0320 Rev.3.20 Figure 3 and Table 2.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar LRA haptic driver applications.

Compared with DA7282-01FVC and DRV2605LRTVT, DA7283-01FVC uniquely delivers zero-software haptic operation with 5 nA OFF-state power and autonomous resonance adaptation-making it the sole choice for maintenance-free, decade-long deployments in sealed or inaccessible devices.

Availability

DA7283-01FVC is available at Aetrix Electronics and suitable for security authentication systems, wearable fitness trackers, and TV remote controllers requiring stable component supply, long-lifecycle assurance, and guaranteed Renesas wafer fab sourcing.

Supply support for DA7283-01FVC 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 DA7283-01FVC belongs to Renesas' DA728x family of haptic drivers engineered specifically for software-free, ultra-low-power LRA actuation in battery-constrained and safety-critical applications.

FAQ

Does DA7283-01FVC require I²C programming to operate?

No, DA7283-01FVC operates without any I²C or SPI programming. It uses three GPI inputs to trigger haptic effects directly-ideal for systems lacking firmware resources or requiring deterministic, low-latency response. The DA7283-01FVC automatically detects and tracks LRA resonant frequency using BEMF sensing, eliminating the need for actuator parameter input.

What is the minimum LRA impedance supported by DA7283-01FVC?

The DA7283-01FVC supports LRA impedances from 8 Ω to 25 Ω, as specified in Table 5 of the datasheet. Impedances below 8 Ω risk triggering the under-impedance protection (ZFLT_UZ = 4 Ω threshold), causing drive suspension. Always verify LRA DC resistance and inductance fall within the recommended 25–1000 µH and 8–25 Ω range before finalizing the DA7283-01FVC design.

How does DA7283-01FVC achieve 5 nA OFF-state current?

The DA7283-01FVC reaches 5 nA OFF-state current by fully resetting internal logic and disabling all regulators when VDDIO/EN is pulled low. This hardware-controlled shutdown eliminates leakage paths in the H-bridge, bias circuits, and sensing blocks. The DA7283-01FVC remains in this state until VDDIO/EN rises above the VIH threshold (≥0.7 × VDDIO), ensuring true zero-power storage in remote controls and disposable electronics.

Can DA7283-01FVC drive multiple LRAs simultaneously?

No, DA7283-01FVC is designed for single-LRA operation with one differential output pair (OUTP/OUTN). Its current regulation, BEMF sensing, and resonant tracking algorithms assume a single actuator load. Driving multiple LRAs would compromise frequency tracking accuracy, overload the H-bridge (max 230 mA), and invalidate impedance-based protection thresholds-so DA7283-01FVC must be used one-per-actuator in multi-haptic systems.

What happens if the LRA's resonant frequency falls outside 150–250 Hz?

If the LRA's nominal resonant frequency lies outside the DA7283-01FVC's 150–250 Hz tracking range, the device cannot lock onto resonance and will default to open-loop drive at a fixed frequency-resulting in reduced acceleration, higher power consumption, and inconsistent tactile output. Renesas explicitly recommends using DA7280/DA7281/DA7282 for LRAs outside this band, as confirmed in Note on page 8 of the DA7283-01FVC datasheet.