ILI2511 - 65-Channel Capacitive Touch Controller | ILITEK
N.º da peça: ILI2511 ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $4.5 | $4,50 |
| 10 | $4.05 | $40,50 |
| 100 | $3.6 | $360,00 |
| 500 | $3.2 | $1.600,00 |
| 1.000 | $2.85 | $2.850,00 |
| 3.000 | $2.55 | $7.650,00 |
ILI2511 Visão geral
What is a capacitive touch sensor controller? A capacitive touch controller is a mixed-signal IC that drives an array of electrodes (TX/RX lines) and measures the tiny changes in self- or mutual-capacitance caused by a finger or stylus near the panel. These measurements are digitized and processed by an embedded MCU to produce touch coordinates and gestures. In the broader taxonomy, the ILI2511 sits as: capacitive touch controller -> projected capacitive touch (PCAP) controller -> touch sensor IC -> mixed-signal interface IC -> semiconductor. PCAP controllers replaced legacy resistive touch in nearly all modern point-of-sale and industrial-human-machine-interface (HMI) panels.
Key features include 65 sensing channels that map to panels up to ~15.6" in diagonal, an embedded high-voltage charge pump that drives large-panel stacks without external DC-DC circuitry, on-chip firmware with touch and gesture reporting, and a hardware-qualified HID descriptor compatible with mainstream operating systems. Industrial-grade ESD protection and wide operating-temperature support make the part well suited to POS terminals, ATMs, medical carts, and factory HMI displays.
The ILI2511 integrates the analog front-end and digital MCU on a single die, which removes the need for an external host MCU to run the touch pipeline. The on-chip charge pump and HV regulator let the part bias the TX electrodes at the higher voltage needed for thick cover-glass or glove-touch operation, while the 32-bit core handles noise filtering, baseline tracking, and multi-touch reporting internally.
Typical applications include POS checkout terminals, ATM touchscreens, industrial control panels, medical equipment HMIs, self-service kiosks, and information displays. The USB and I2C interfaces allow drop-in integration with Windows PCs, embedded Linux boards, and standalone MCU hosts.
When designing with the ILI2511, follow the ILITEK reference layout for the QFN-88 EP land pattern, keep the high-voltage charge-pump traces short and surrounded by ground, and use the recommended ITO/stackup from the panel vendor to achieve the rated touch sensitivity. Add ESD protection on the USB D+/D- lines if the panel is exposed to user handling.
This page synthesizes verified ILITEK datasheet parameters, distributor pricing, and a curated list of drop-in alternative touch controllers you can evaluate for sourcing risk or second-source qualification - information not aggregated on any single manufacturer or distributor page.
Alternativas drop-in para ILI2511 — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
ILI2139A
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
ILI2510
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
ILI2511 Classificações máximas e características elétricas
| Product Type | Single-chip capacitive touch sensor controller (PCAP) |
| Manufacturer | ILITEK (ILITEK / ILI Technology Corp.) |
| Total Sensing Channels | 65 (TX drive + RX sense) |
| Embedded MCU | 32-bit |
| Front-End | High-speed Capacitance-to-Digital Converter (CDC) |
| Host Interfaces | USB, I2C, UART |
| High-Voltage Drive | On-chip charge pump controller + high-voltage regulator |
| OS Compliance | Windows 8.1, Windows 10 (HID-class) |
| Target Applications | POS, ATM, industrial capacitive touch panel |
| Encapsulamento | QFN-88-EP (10x10 mm) |
| Tipo de montagem | Surface Mount |
Guia de Configuração de Pinos do ILI2511 qfn-88-ep (10x10 mm)
Configuração de pinos para ILI2511 (pacote qfn-88-ep (10x10 mm)). A numeração dos pinos, funções e diagramas de conexão estão definidos no datasheet do fabricante. Consulte-o para o footprint exato e diretrizes de soldagem.
Nenhum dado detalhado de pinagem disponível para ILI2511.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
ILI2511 é adequado para 6 aplicaçãos: POS Checkout Terminals, ATM and Self-Service Kiosks, Industrial HMI Panels, Medical Equipment Touch Displays, Interactive Information Displays, Vending and Ticketing Machines.
POS Checkout Terminals
The ILI2511's 65 sensing channels, integrated high-voltage charge pump, and Windows 8.1/10 HID-compliant USB interface make it a strong fit for capacitive POS checkout terminals up to ~15.6 inches. The on-chip 32-bit MCU streams multi-touch coordinates through standard HID, so the POS host CPU runs only the POS application - no custom driver needed. Glove- and water-rejection firmware profiles (panel-vendor validated) let cashiers operate with wet or gloved hands without losing accuracy. Place the controller on a 4-layer board with the EP pad stitched to ground and keep the HV charge-pump traces short per ILITEK's reference layout to meet radiated-emissions targets in retail EMC environments.
Recomendado
ATM and Self-Service Kiosks
ATM and self-service kiosks demand vandal-resistant cover glass and reliable touch through gloves and rain - exactly where the ILI2511's integrated high-voltage charge pump earns its keep. The HV pump boosts the TX drive level so thick cover glass still produces measurable CDC delta, while the embedded 32-bit core handles baseline tracking and noise rejection in the field. HID-class USB output lets the kiosk computer treat the panel as a standard eGalax/HID digitizer, simplifying OS image builds. The QFN-88-EP (10x10 mm) keeps the controller small enough to sit behind a slim bezel, and the on-chip regulator removes one external DC-DC, reducing BOM and MTBF risk.
Recomendado
Industrial HMI Panels
Industrial HMI panels need consistent touch through gloves, oil, and water, plus immunity to the switching-noise environment near motor drives. The ILI2511's 65 channels, embedded charge pump, and CDC filtering support projected-capacitive sensing through 6-10 mm cover glass used in factory automation enclosures. The integrated 32-bit MCU handles noise filtering locally so the HMI's main processor is not interrupted per touch, keeping deterministic scan budgets for control loops. ILITEK's Windows 8.1/10 HID-class USB output also lets the same firmware image run on x86 HMI SBCs and ARM panels without driver porting. Validate panel-stackup-specific tuning per ILITEK's reference flow before going to production.
Recomendado
Medical Equipment Touch Displays
Medical carts, infusion pumps, and bedside terminals benefit from the ILI2511's glove/wet-finger firmware profiles and on-chip touch pipeline. The integrated CDC + 32-bit MCU processes touches locally, so the medical SBC can dedicate cycles to safety-critical tasks while the touch controller streams multi-touch via USB-HID or I2C. The on-chip HV regulator and charge pump reduce external components - critical for medical BOM simplification and faster IEC 60601-1 EMI/ESD reviews. Engineering teams should still validate the panel-stackup-specific tuning and ESD paths with the ILITEK reference documentation, but the silicon integration removes a class of analog design work from the medical project plan.
Recomendado
Interactive Information Displays
Interactive information displays in retail, transit, and museum settings typically run a 10-21 inch diagonal PCAP panel driven by an x86 media player. The ILI2511's 65 channels fit common 15.6" layouts, while its HID-class USB output is recognized natively by Windows, Linux (via standard hid-multitouch driver), and most embedded media-player OS images. The on-chip HV charge pump lets designers use thicker anti-glare cover glass, improving outdoor readability. Because the ILI2511 carries touch processing on-board, the media player is free to focus on graphics and content security rather than real-time touch filtering.
Recomendado
Vending and Ticketing Machines
Vending and ticketing machines combine outdoor environments, public-user touch, and an embedded SBC host - a perfect match for the ILI2511's HID-class USB output and rugged PCAP pipeline. The on-chip 32-bit MCU handles wet and glove touches that occur in transit-station vending, while the integrated HV regulator keeps power-rail design simple. The QFN-88-EP 10x10 mm package fits the slim bezel behind the touch panel, and the standard HID interface means the same vending controller firmware works across panel sizes up to ~15.6 inch. Designers should pair the ILI2511 with ILITEK's panel-tuning guide to lock down the cover-glass / sensor parameters early in the project.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para ILI2511 — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | ILI2139A | ILI2510 | GT9271 |
|---|---|---|---|---|
| Package | QFN-88-EP (10x10 mm) | QFN-88-EP (10x10 mm) - same family | QFN-88-EP (10x10 mm) - same family | QFN-68 - different package (not pin-compatible) |
| Brand | ILITEK | ILITEK (same brand) | ILITEK (same brand) | Goodix (cross-brand, different package) |
| Host Interfaces | USB, I2C, UART | USB, I2C | USB, I2C, UART | I2C, USB (no native UART HID) |
| Embedded MCU | 32-bit | 32-bit | 32-bit | 32-bit |
| High-Voltage Charge Pump | On-chip | On-chip | On-chip | On-chip |
| OS Compliance | Windows 8.1 / Windows 10 HID | Windows 8.1 / Windows 10 HID | Windows 8.1 / Windows 10 HID | Windows / Android HID-class |
| Target Panel Size | Up to ~15.6-inch diagonal | Up to ~10.1-inch diagonal | Up to ~10.1-inch diagonal | Up to ~8-inch diagonal |
Principais diferenciais
- On-chip high-voltage charge pump for thick cover glass (vs ILI2510)
- 65-channel count vs typical 32-channel PCAP parts (vs GT9271)
- HID-class USB output compliant with Windows 8.1/10 (vs Proprietary PCAP controllers)
Notas de projeto
Use a 4-layer stack-up with a continuous ground plane under the QFN-88-EP. Stitch the exposed pad (EP) with a 5x5 via array (0.3 mm via, 0.5 mm pitch) tied to the ground plane to meet thermal and EMI targets. Keep the high-voltage charge-pump capacitor loop (CX_PUMP and CPGND return) within 5 mm of the controller pins and route the return on the opposite layer to reduce radiated emissions in retail EMC scans.
Route the USB D+/D- pair as a 90-ohm differential with no splits, and place the ESD protection array within 5 mm of the connector. For I2C operation, locate the I2C pull-ups near the ILI2511 and follow ILITEK's reference schematic for the WAKE/INT/RESET pin net. Keep the TX/RX sensor traces short and shielded by ground; > 50 mm sensor runs require a re-check of the CDC noise floor during panel tuning.
Capacitive touch controllers are mixed-signal parts; the CDC front-end and the digital MCU share one die. Isolate the analog AVDD pin with a ferrite bead and a 10 uF + 0.1 uF decoupling pair, and keep digital return currents out of the AVDD ground reference. If the panel stackup is single-sided flex, follow the ILITEK reference flex-routing rules - improper return paths degrade CDC SNR and cause ghost touches near display edges.
Do not skip the panel-specific tuning flow - touch controllers require per-stackup calibration of the CDC baseline and integration window. Replacing an ILI2511 with a different PCAP part (e.g. GT9271) on the same PCB will produce ghost touches until the firmware and HID descriptor are regenerated. Also confirm the host system's hid-multitouch driver version; older Linux kernels need a manual map for some ILITEK descriptors, which trips up Linux kiosk images if not validated early.
Informações de conformidade
JLCPCB lists ILI2511 as ROHS-compliant SMT. REACH, halogen-free, and conflict-minerals status were not found in the verified data; AEC-Q100 is not applicable to a touch controller IC.
