MAX14515AEWA+T - High-Voltage Liquid Lens Driver 8-WLP | Maxim Integrated
部品番号: MAX14515AEWA+T ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $3.45 | $3.45 |
| 10 | $3.1 | $31.00 |
| 100 | $2.62 | $262.00 |
| 500 | $2.2 | $1,100.00 |
| 1,000 | $1.84 | $1,840.00 |
MAX14515AEWA+T 概要
A liquid lens driver is a specialized power-management IC that converts a low-voltage DC source into the bipolar, AC high-voltage waveform required to deform an electrowetting-based liquid lens, thereby adjusting optical focus. Liquid lens drivers sit within the camera-module subsystem alongside image sensors, ISP front-ends, and voice-coil/focus actuators, forming the hardware chain that delivers electronically-tunable focus to smartphones, webcams, AR/VR cameras, machine-vision heads, and barcode scanners.
Key features include I²C-controlled output voltage amplitude adjustment, integrated H-bridge for bipolar lens excitation, internal charge pump that boosts a 2.7V–5.5V supply up to lens-driving levels, low-power shutdown mode, small-footprint 8-bump WLP (Wafer-Level Package), and minimal external component count. The high-voltage differential output directly drives the lens cell, eliminating the need for an external transformer or high-voltage amplifier.
From an architecture standpoint, the MAX14515 uses a Dickson charge-pump stage to generate the high DC rail, followed by an H-bridge that commutates that rail at the lens-resonance frequency to produce the AC field. The I²C interface provides register-based amplitude and mode control, while internal logic manages start-up sequencing and fault protection. The 8-WLP package dramatically reduces board area, which is critical for camera modules where z-height and x/y footprint are tightly constrained.
Typical applications include autofocus liquid-lens modules in smartphones and tablets, AR/VR camera lenses, security and surveillance cameras with electronic focus, industrial machine-vision cameras, and endoscope/imaging probes. Its minimal BOM and small footprint suit camera-module integration where space is at a premium and lens drive efficiency matters.
When designing with this device, ensure the I²C bus pull-ups match the controller's logic level and place the charge-pump flying capacitors as close to the IC as possible. Verify that the lens-resonance frequency lies within the part's commutating range, and respect the WLP's strict MSL1 handling requirements to avoid bump-damage during reflow.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, providing engineers with a single decision-ready reference for sourcing and second-sourcing the MAX14515AEWA+T liquid-lens driver.
ドロップイン代替品: MAX14515AEWA+T — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
クイック比較ツール — 並列比較する代替部品を選択:
MAX14515AEWA+
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MAX14515EWA+
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
MAX14515AEWA+T
✅ ドロップイン✓ 在庫あり
$1.84 / 個
データシートを見る →MAX14515AEWA+T 最大定格＆電気的特性
| 機能 | High-Voltage Liquid Lens Driver |
| Supply Voltage Range | 2.7 V to 5.5 V |
| 出力タイプ | Differential high-voltage AC (H-bridge) |
| インターフェース | I²C (register-controlled) |
| トポロジー | Charge-pump boost + integrated H-bridge |
| パッケージ | 8-WLP (Wafer-Level Package) |
| 実装タイプ | Surface Mount |
| MSLレベル | 1 |
| Peak Reflow Temperature | 260 C (max 30 s) |
| Terminal Finish | Tin-Silver-Copper (e1, JESD-609) |
| Lead-Free Status | Lead Free |
| RoHS ステータス | RoHS Compliant |
| Applications | Digital camera autofocus liquid-lens modules |
| Manufacturer | Analog Devices Inc. (formerly Maxim Integrated) |
MAX14515AEWA+T ピン構成
| ピン 1 | VDD — 2.7V to 5.5V supply input |
| ピン 2 | GND — Ground |
| ピン 3 | SDA — I²C data |
| ピン 4 | SCL — I²C clock |
| ピン 5 | CP1 — Charge-pump flying capacitor node 1 |
| ピン 6 | CP2 — Charge-pump flying capacitor node 2 |
| ピン 7 | OUT+ — Differential high-voltage AC output (positive) |
| ピン 8 | OUT- — Differential high-voltage AC output (negative) |
主な用途
MAX14515AEWA+T の用途: 6 件s: Smartphone Autofocus Camera Modules, AR/VR Headset Camera Lenses, Industrial Machine-Vision Cameras, Security and Surveillance Cameras, Endoscope and Medical Imaging Probes, Barcode Scanner and Handheld Reader Optics.
Smartphone Autofocus Camera Modules
The MAX14515AEWA+T drives electrowetting liquid lenses in smartphone primary and front-facing cameras, replacing fixed-focus optics with electronically tunable focus. Its 8-bump WLP at roughly 2x2 mm fits inside camera modules where z-height is below 6 mm and PCB area is below 30 mm². The internal charge-pump boost and integrated H-bridge deliver the bipolar AC field directly from a 3.7V lithium-ion rail, eliminating an external HV converter. I²C amplitude control lets the ISP command focus position in real time, supporting fast autofocus without moving-mass voice-coil actuators.
おすすめ
AR/VR Headset Camera Lenses
AR/VR headsets require compact camera lenses with electronically tunable focus for eye-tracking, inside-out tracking, and passthrough imaging. The MAX14515AEWA+T's small WLP footprint and I²C interface suit the dense PCB layouts of headset camera bars. Its 2.7V–5.5V supply range matches headset Li-ion battery rails directly. The internal H-bridge provides the bipolar AC excitation that electrowetting liquid lenses need, and the charge pump eliminates external magnetics. Designers get a single-IC liquid-lens solution that keeps the headset lightweight and thermally manageable.
おすすめ
Industrial Machine-Vision Cameras
Industrial machine-vision heads use liquid lenses to switch focus between parts of different heights on a conveyor without mechanical motion, increasing throughput. The MAX14515AEWA+T provides I²C-programmable amplitude so the vision controller can change focus dynamically as parts move through the field of view. Its 8-WLP footprint drops directly onto rigid-flex camera PCBs, and its 260 C reflow compatibility supports standard lead-free SMT lines. The integrated H-bridge and charge pump minimize BOM cost and BOM area versus a discrete HV solution.
おすすめ
Security and Surveillance Cameras
PTZ and fixed-focal surveillance cameras use liquid lenses to provide electronically variable focus for close-range ID capture and far-range overview. The MAX14515AEWA+T's I²C-controlled amplitude enables the camera SoC to drive focus through software without a mechanical autofocus motor, reducing moving-parts wear and power draw. The 2.7V–5.5V supply accepts PoE-derived 3.3V rails directly. The integrated charge pump and H-bridge free up PCB space for IR-illuminator LEDs and image-sensor routing inside compact dome or bullet housings.
おすすめ
Endoscope and Medical Imaging Probes
Medical endoscopes and imaging probes need tiny, electrically tunable lenses to focus at varying tissue depths without moving-mass actuators in the tip. The MAX14515AEWA+T's 8-WLP package and minimal external BOM let designers fit the entire liquid-lens driver inside a 5 mm probe tip. Its 2.7V–5.5V input matches the 3.3V rails common in probe electronics, and the I²C bus lets the surgeon console command focus through the existing digital video link. The integrated H-bridge eliminates the EMI risk of an external HV switching stage in sensitive imaging electronics.
おすすめ
Barcode Scanner and Handheld Reader Optics
Handheld barcode scanners and point-of-sale readers benefit from liquid-lens focus because they need to read both 1D paper codes at long distance and 2D phone-screen codes at close range. The MAX14515AEWA+T's I²C-controlled amplitude lets the scanner firmware switch focus depth in under 30 ms. The 8-bump WLP fits on a 10x10 mm scanner PCB alongside the imager and LED illuminator. The 2.7V–5.5V supply range matches single-cell Li-ion or USB-powered rails, and the integrated H-bridge delivers the bipolar AC drive that electrowetting lenses require without external HV components.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: MAX14515AEWA+T — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | MAX14515AEWA+ | MAX14515EWA+ |
|---|---|---|---|
| Brand | Maxim Integrated (Analog Devices) | Maxim Integrated (Analog Devices) | Maxim Integrated (Analog Devices) |
| Package | 8-WLP | 8-WLP (same) | 8-WLP (same) |
| Function | Liquid-lens driver (charge pump + H-bridge) | Liquid-lens driver (same) | Liquid-lens driver (same) |
| Interface | I²C | I²C | I²C |
| Supply Voltage | 2.7V to 5.5V | 2.7V to 5.5V | 2.7V to 5.5V |
| Output Topology | Differential H-bridge | Differential H-bridge | Differential H-bridge |
| Packaging Carrier | Tape & Reel (+T) | Tray / Bulk (+) | Tray / Bulk (+) |
| RoHS / Lead-Free | Yes / Yes | Yes / Yes | Yes / Yes |
主な差別化要因
- Industry-smallest liquid-lens driver footprint for camera modules （vs MAX14515AEWA+)
- Fully integrated charge pump + H-bridge in one IC （vs Discrete HV-driver solution (boost + H-bridge + DAC))
- I²C-controlled amplitude for software-defined focus （vs Analog-set or PWM-set liquid-lens drivers)
設計ノート
The 8-WLP package has fine-pitch bumps that demand strict SMT process control. Place the charge-pump flying capacitor as close as possible to the CP1/CP2 bumps with short, symmetric traces to minimize loop inductance and supply ripple. Route the high-voltage differential OUT+/OUT- traces as a tightly coupled pair to keep the AC waveform balanced and reduce EMI. Per the manufacturer datasheet, expose a continuous ground plane under the WLP to provide thermal relief and a low-impedance return for the H-bridge switching currents.
Do not exceed the absolute-maximum VDD of 6V; the MAX14515AEWA+T is rated for 2.7V–5.5V operation. Ensure I²C pull-ups match the camera-module SoC logic level (typically 1.8V or 3.3V) - the part's SDA/SCL are referenced to VDD, so bus level translation may be needed in mixed-voltage designs. Per the manufacturer datasheet, respect MSL-1 handling: although floor life is unlimited at <=30 C/85% RH, the WLP bumps can still be damaged by mechanical probe contact or excessive placement force.
Keep noisy switching nodes (CP1, CP2, OUT+, OUT-) away from sensitive analog traces such as the imager analog supply and clock lines. Per the manufacturer datasheet, route SDA and SCL away from the high-voltage outputs to avoid capacitive coupling that could disturb I²C communication. A solid ground island under the WLP tied to the camera-module ground through multiple vias helps both EMI and thermal performance.
コンプライアンス情報
RoHS-compliant and lead-free per distributor listings. Halogen-free status and REACH not stated in the verified web data; AEC-Q100 not applicable as this is a consumer/industrial camera-module IC, not an automotive-grade part.
