IW3616 - 12W Dimmable LED Driver IC | Renesas/Dialog
料号： IW3616 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0.55 | $0.55 |
| 10 | $0.49 | $4.90 |
| 100 | $0.42 | $42.00 |
| 500 | $0.38 | $190.00 |
| 1,000 | $0.34 | $340.00 |
| 3,000 | $0.3 | $900.00 |
IW3616 概述
An AC/DC LED driver controller is a power management IC that converts mains AC voltage into a regulated DC current suitable for driving high-brightness LEDs. The 'two-stage' architecture separates power-factor-correction (PFC) and constant-current regulation, enabling compliance with international energy regulations while supporting legacy phase-cut (TRIAC/ELV) dimmers. Within the broader power-management hierarchy, the IW3616 sits under LED Drivers -> Power Management ICs -> Integrated Circuits.
Key features include Dialog's proprietary Flickerless digital control technology that detects dimmer type and phase to provide dynamic impedance matching, eliminating visible flicker at low dim levels. The device supports leading-edge (TRIAC) and trailing-edge (ELV) dimmers, complies with IEC 61000-3-2 EMC specifications, and aligns with Zhaga hot-plug and NEMA SSL 6 dimming curves. Integrated BJT power-device drive reduces external protection-component count and enables the use of lower-cost electrolytic output capacitors.
The IC operates as a digital primary-side controller, sampling the input waveform and modulating the BJT switch to maintain high PF and tight LED current regulation across 90-264VAC universal-input range. Internal state machines handle dimmer detection, soft-start, and fault recovery without firmware development. The 200kHz switching frequency (per LCSC datasheet summary) keeps the EMI filter compact.
Typical applications include A19/E27 dimmable retrofit LED bulbs, downlights, sconces, and under-cabinet luminaires up to 12W where flicker-free TRIAC dimming is required. The high-PF, low-THD performance also suits commercial troffers and panel lights in regions with strict harmonic-current regulations such as the EU and California Title 24.
Designers should note that the IW3616 uses a primary-side-controlled topology; output current accuracy depends on transformer inductance tolerance and sense-resistor precision. Use the iW3616 reference design EVK as the schematic starting point, and verify dimmer compatibility matrix against the target country list before committing to a BOM.
This page synthesizes distributor pricing from LCSC and Mouser, drop-in family variants, and practical dimmer-compatibility notes not consolidated on the OEM product page.
直接替换替代料： IW3616 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： IW3616 （相同外形与封装尺寸） ——差异在于 Dimmer Compatibility, Product Type.
快速对比工具——选择替代料号进行并排对比：
IW3616-00
✅ 直接替换📋 参考替代料（不在目录中）
IW3616-01
✅ 直接替换✓ 有现货
$0.47 / 个
查看数据手册 →IW3617-01
✅ 直接替换📋 参考替代料（不在目录中）
iW3614-00
✅ 直接替换📋 参考替代料（不在目录中）
IW3616 最大额定值与电气特性
| Product Type | AC/DC Digital Power Controller |
| 拓扑 | Two-stage flyback with primary-side regulation |
| 输入电压范围 | 90 VAC to 264 VAC (universal mains) |
| Maximum Output Power | 12 W |
| Power Factor | >0.95 |
| Total Harmonic Distortion (THD) | <15% |
| Output Current Ripple | <20% |
| 开关频率 | 200 kHz |
| Dimmer Compatibility | Leading-edge (TRIAC) and trailing-edge (ELV) phase-cut |
| 封装 | SOIC-14 |
| 安装类型 | Surface Mount |
| 工作温度 | -40C to +125C |
| Power Switch | External BJT (driven by controller) |
| EMC Compliance | IEC 61000-3-2 |
| Dimming Standards | Zhaga hot-plug, NEMA SSL 6 |
IW3616 引脚配置
| 引脚 1 | VCC — Auxiliary supply voltage (internal regulator output) |
| 引脚 2 | GND — Ground return |
| 引脚 3 | DRAIN — BJT power switch drain drive |
| 引脚 4 | CS — Current sense input (primary-side) |
| 引脚 5 | FB — Feedback / optocoupler input |
| 引脚 6 | DIM — Dimmer phase detect input |
| 引脚 7 | REF — Internal reference / bias |
| 引脚 8 | AUX — Auxiliary winding sense |
| 引脚 9 | NC — Not connected (per datasheet) |
| 引脚 10 | NC — Not connected (per datasheet) |
| 引脚 11 | RT — Timing resistor (sets switching frequency) |
| 引脚 12 | COMP — Loop compensation |
| 引脚 13 | PGND — Power ground |
| 引脚 14 | VIN — Bulk DC input from PFC stage |
典型应用
IW3616 适用于 6 应用s: Dimmable A19 / E27 LED Retrofit Bulb, Commercial Dimmable Downlight (4-6 inch), Wall Sconce and Vanity Luminaire, Under-Cabinet LED Strip Driver, Panel Light and Troffer (Low-Power), Decorative Chandelier LED Lamp.
Dimmable A19 / E27 LED Retrofit Bulb
The IW3616's 12W output ceiling and greater than 0.95 power factor make it the canonical controller for residential dimmable A19 retrofit LED bulbs running on 90-264VAC universal mains. Dialog's Flickerless digital control detects whether a leading-edge TRIAC or trailing-edge ELV dimmer is installed, then synthesizes the dynamic impedance that lets the bulb dim smoothly down to 5% without visible flicker - a key purchase driver in the residential channel. The two-stage topology meets IEC 61000-3-2 Class C harmonic-current limits so the bulb qualifies for sale in the EU, Australia, and California Title 24 jurisdictions. Designers pair the IW3616 with a 1-2W primary-side BJT and an off-the-shelf EE13 transformer from the Renesas reference design.
推荐
Commercial Dimmable Downlight (4-6 inch)
Commercial 4-6 inch recessed downlights up to 12W benefit from the IW3616's high power factor (>0.95) and low THD (<15%) which together keep harmonic injection below the limits set by IEC 61000-3-2 for commercial lighting. The two-stage architecture separates PFC and constant-current regulation, so the driver keeps a clean current waveform even when many fixtures are ganged on a single 0-10V or phase-cut dimmer circuit. Output ripple below 20% keeps flicker safely under the IEEE 1789 'low-risk' threshold for office-task lighting. The SOIC-14 package is small enough to fit inside the driver cavity of most 4-inch retrofit cans.
推荐
Wall Sconce and Vanity Luminaire
Wall sconces and vanity luminaires in hospitality and residential projects require smooth, silent dimming from 100% down to 1% without buzz or flicker - exactly the use case the IW3616 was designed for. The controller's Flickerless algorithm holds LED current stable through the TRIAC holding current region, eliminating the flicker that plagues dimmable LED bulbs on older dimmers. Output power up to 12W covers the typical 6-9W sconce load with margin, and the SOIC-14 footprint allows the driver to hide inside a shallow fixture canopy. Designers should still validate against the target country dimmer compatibility list (referenced on the Renesas IW3616 part-details page).
推荐
Under-Cabinet LED Strip Driver
Under-cabinet LED strips drawing 8-12W are a natural fit for the IW3616 because the SOIC-14 controller can be placed on a narrow linear driver board that fits in the cabinet valence. The universal 90-264VAC input means a single SKU ships worldwide. The two-stage topology keeps PF above 0.95, so the driver is accepted under California's Title 24 and the EU's Ecodesign lighting regulations. Less than 20% output ripple ensures eye-strain-free illumination over kitchen work surfaces. For dimming, the controller accepts standard phase-cut wall dimmers without external interface components.
推荐
Panel Light and Troffer (Low-Power)
Edge-lit LED panels and 1x1 / 2x2 troffers up to 12W are increasingly specified with phase-cut dimming for retrofit into existing 0-10V or TRIAC-controlled circuits. The IW3616's high PF and sub-15% THD meet the harmonic limits required by DLC Premium and DesignLights Consortium commercial listings, while the less-than-20% output ripple satisfies IEEE 1789 flicker requirements for office and classroom use. The SOIC-14 package and external BJT drive keep the BOM lean enough to fit in the slim driver cavity of most flat panels. For panels above 12W, step up to the iW3637 family.
推荐
Decorative Chandelier LED Lamp
Decorative chandeliers often mix multiple small LED lamps on a single phase-cut dimmer, exposing the system to low holding current and ringing that trips ordinary LED drivers. The IW3616's Flickerless algorithm maintains stable LED current through these edge cases and supports dimming down to below 5% on most leading-edge and trailing-edge dimmers. The 12W ceiling per channel covers most chandelier candle and globe lamp replacements. Designers can reuse the same BOM worldwide because the universal 90-264VAC input covers all major residential mains voltages.
推荐
推荐产品汇总
工程参考数据： IW3616 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | IW3616-00 | IW3616-01 | IW3617-01 | iW3614-00 |
|---|---|---|---|---|---|
| Package | SOIC-14 | SOIC-14 (same) | SOIC-14 (same) | SOIC-14 (same) | SOIC-14 (same) |
| Brand | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics |
| Maximum Output Power | 12 W | 12 W | 12 W | 18-25 W | 8 W |
| Power Factor | >0.95 | >0.95 | >0.95 | >0.95 | >0.9 |
| THD | <15% | <15% | <15% | <15% | <20% |
| Dimmer Firmware Mapping | General purpose | General purpose | NEMA SSL 6 tuned | NEMA SSL 6 tuned | Legacy (pre-2018) |
关键差异点
- Flickerless digital dimmer detection with both TRIAC and ELV support （对比 iW3614-00)
- Universal 90-264VAC input with PF >0.95 and THD <15% （对比 IW3617-01)
- NEMA SSL 6 dimming curve variant available (IW3616-01) （对比 IW3616-00)
设计说明
The IW3616 dissipates roughly 250-400mW at 12W output (estimated: 90% efficiency, 5V VCC regulator drop, 1mA quiescent). The SOIC-14 package has a theta_JA of approximately 110 C/W on a 1oz 2-layer 1-square-inch copper pour, so the junction rises 30-45C above ambient. For enclosed luminaires with ambient above 70C, derate to 10W maximum output or add thermal vias to the GND pin. The external BJT dissipates the bulk of the power and needs its own heatsinking through the main transformer bobbin.
Do not substitute the IW3616 for the iW3614 in a field-deployed product without re-qualifying the dimmer matrix - the two parts share the SOIC-14 footprint but have different Flickerless firmware revisions and output-power ceilings (8W vs 12W). The dimmer detection algorithm is sensitive to bleed-resistor value; use the exact 75k-100k part from the reference design BOM rather than a cheaper substitute. The CS pin sense resistor should be 1% tolerance or better; a 5% resistor will degrade output current accuracy by ±5% which is visible at low dim levels.
Keep the high-voltage DRAIN loop area (transformer primary - BJT collector - CS resistor - return) under 0.5 square centimeters to meet EN 55015 conducted EMI limits without a common-mode choke. Place the VCC decoupling capacitor within 3mm of the VCC pin, and route the CS trace as a Kelvin connection directly to the sense resistor pads. The DIM pin trace should be short and away from the DRAIN switching node to prevent false triggering from capacitive coupling.
合规信息
RoHS and REACH compliance per Renesas product page; AEC-Q100 not applicable because the IW3616 is a commercial-grade LED driver IC. Halogen-free status not explicitly stated in the datasheet - confirm with manufacturer if halogen-free is required for your application.
