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Renesas ISL29000IROZ
- Part No.:
- ISL29000IROZ
- Manufacturer:
- Renesas
- Category:
- Ambient Light, IR, UV Sensors
- Package:
- 5-WDFN Exposed Pad
- Datasheet:
-
ISL29000IROZ.pdf
- Description:
- SENSOR OPT 550NM AMBIENT 5 WDFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,299
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Product details
Overview
ISL29000IROZ from Intersil is an ambient light-to-current optical sensor IC integrating a photodiode and current amplifier on a monolithic die. It delivers 45–75 µA output current at 1000 lux, operates from 2.5V to 5.5V, draws only 0.2 µA in dark conditions, and features ultra-compact 5-lead ODFN packaging for space-constrained mobile display brightness control.
For engineers reviewing the ISL29000IROZ datasheet, ISL29000IROZ pinout, ISL29000IROZ application, or ISL29000IROZ equivalent, key selection criteria include its linear luminance response (±1% deviation), low dark current (0.06 µA), enable-controlled power gating, output compliance voltage (2.7 V at 1000 lux), and spectral match to human eye photopic response.
Technical Context
The ISL29000IROZ implements a temperature-compensated photodiode front-end with integrated transimpedance amplification, delivering analog current output directly proportional to incident illuminance. Its spectral sensitivity peaks near 550 nm and closely tracks CIE photopic luminosity function, minimizing color-dependent measurement error under fluorescent, incandescent, and daylight sources.
It uses a single-ended current-output architecture with enable (EN) pin logic control (VLO = 0.6 V, VHI = 1.8 V), no internal voltage regulation, and relies on external load resistor (RLOAD) for voltage conversion. Output saturation occurs at ~10,000 lux (600 µA), with absolute max output current limited to 6 mA to prevent metallization damage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.5V to 5.5V - supports direct connection to common system rails without LDO |
| Dark Supply Current | 0.2 µA - enables ultra-low-power always-on ambient sensing in battery-critical devices |
| Output Current @ 1000 lux | 45–75 µA - provides calibrated, repeatable analog signal for ADC input scaling |
| Output Compliance Voltage | 2.7 V (at 95% of normal output) - defines maximum RLOAD before voltage saturation at given VCC |
| Rise/Fall Time | 27 µs / 78 µs (RL = 5 kΩ) - ensures sub-100 µs dynamic response for real-time backlight adjustment |
| Spectral Match | CIE photopic curve - minimizes lux reading error across light source types without software correction |
| Operating Temperature | −40°C to +85°C - qualified for consumer handheld and industrial edge environments |
Pinout & Package
Housed in a 5-lead Optical Dual Flat No-Lead (ODFN) package (L5.2×2.1 mm), the ISL29000IROZ features an exposed thermal pad that may be left electrically isolated or connected to GND per layout requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC (Pin 1) | Positive supply input | Accepts 2.5–5.5 V; requires local 0.1 µF ceramic + 4.7 µF tantalum bypassing |
| GND (Pin 2) | Reference ground | Must connect to solid ground plane; shared return for EN and OUTPUT |
| EN (Pin 3) | Enable control input | Active-high logic: <0.6 V disables (ICC ≈ 0.2 µA), >1.8 V enables device operation |
| NC (Pin 4) | No-connect terminal | Internally unconnected; must remain floating or tied to GND (no electrical impact) |
| OUTPUT (Pin 5) | Current-sourcing output | Delivers light-proportional current; requires external RLOAD to generate voltage for ADC interface |
Key Features
| Feature | Design Value |
|---|---|
| Monolithic photodiode + amplifier | Eliminates inter-device gain drift and thermal mismatch between discrete sensor and op-amp |
| Human-eye spectral response | Reduces lux measurement error under mixed lighting vs. silicon-only photodiodes |
| Enable pin with low-threshold logic | Allows microcontroller GPIO to gate power without level-shifting circuitry |
| Ultra-low dark current (0.06 µA) | Preserves linearity down to <1 lux; avoids zero-point calibration drift over temperature |
| Clear plastic ODFN package | Maximizes optical coupling efficiency while enabling 0.5 mm profile for thin mobile designs |
Applications
| Smartphone Display Backlight Control | Notebook PC Ambient Light Sensing |
|---|---|
Use Scenario: Automatic LCD brightness adjustment based on indoor/outdoor ambient conditions. IC Role / Device Role / Timing Role: Ambient light sensor providing analog current output scaled to illuminance for MCU ADC sampling. Use Value: Enables >20:1 brightness range adaptation with <±5% lux error across 0–10,000 lux, extending battery life by reducing backlight power in low-light settings. | Use Scenario: Real-time keyboard backlight activation and intensity modulation in varying office lighting. IC Role / Device Role / Timing Role: Low-power optical sensor interfaced via 10–100 kΩ load resistor to produce 0.25–1.25 V output swing. Use Value: Delivers stable 27 µs rise time and <0.2 µA dark current, ensuring responsive, flicker-free dimming without wake-up latency. |
| Digital Camera Auto-Exposure Assist | Industrial HMI Panel Brightness Management |
Use Scenario: Supplemental ambient light reference for exposure algorithm tuning during preview mode. IC Role / Device Role / Timing Role: Fast-response current-output sensor feeding into dedicated exposure controller ADC channel. Use Value: Provides 78 µs fall time and ±1% linearity over 100–1000 lux range, improving exposure convergence speed and accuracy under changing lighting. | Use Scenario: Adaptive front-panel LED indicator brightness in factory-floor HMIs exposed to variable overhead lighting. IC Role / Device Role / Timing Role: Robust ambient sensor operating across −40°C to +85°C with RoHS-compliant ODFN package. Use Value: Maintains <0.06 µA dark current and CIE-matched response at temperature extremes, eliminating manual recalibration cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ambient light sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| VEML6030 (Vishay) | I²C digital output; integrated ADC; 0.01 lux min detect; 1.7–3.6 V supply | Requires I²C host interface; eliminates external RLOAD and ADC scaling but adds firmware dependency | Choose VEML6030 when digital integration, lower minimum detectable lux, or smaller footprint (2.0×2.0 mm) outweigh analog simplicity |
| OPT3001 (Texas Instruments) | Digital lux sensor with auto-ranging; 0.01–83 klux range; 1.6–3.6 V; I²C interface | Provides direct lux output with 0.2% full-scale accuracy; no analog scaling or external components needed | Choose OPT3001 for highest accuracy, widest dynamic range, and simplified system-level calibration |
Compared with VEML6030 and OPT3001, the ISL29000IROZ offers analog current output with minimal BOM count, ultra-low dark current, and proven performance in legacy mobile designs-but requires external RLOAD and MCU ADC resources for conversion.
Availability
ISL29000IROZ is available at Aetrix Electronics and suitable for smartphone display control, notebook PC ambient sensing, digital camera auto-exposure assist, industrial HMI panel management, and portable medical device UI adaptation requiring stable component supply and long-term lifecycle support.
Supply support for ISL29000IROZ 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
Intersil Corporation, now part of Renesas Electronics, is a U.S.-based semiconductor designer specializing in precision analog, power management, and interface ICs for high-reliability applications.
The ISL29000IROZ belongs to Intersil's ambient light sensor product line, engineered specifically for low-power, high-linearity optical sensing in space-constrained portable electronics where spectral fidelity and dark-current stability are critical.
FAQ
What is the maximum recommended load resistor value for ISL29000IROZ?
The ISL29000IROZ supports RLOAD values up to 10 MΩ, but practical selection depends on required output voltage swing and response time. For 1000 lux input and 3 V supply, Equation 3 recommends ~45 kΩ to maximize linear range while avoiding output saturation. Larger resistors increase sensitivity but slow response due to stray capacitance; smaller resistors improve speed but reduce voltage swing.
Does ISL29000IROZ require external voltage regulation?
No, the ISL29000IROZ operates directly from 2.5 V to 5.5 V without internal regulation. It draws only 0.2 µA in dark conditions and up to 74 µA at 1000 lux, making it compatible with unregulated battery rails or standard system supplies. Local bypassing (0.1 µF ceramic + 4.7 µF tantalum) is mandatory for noise immunity.
How does the ISL29000IROZ handle different light sources like fluorescent vs. sunlight?
The ISL29000IROZ features spectral response closely matched to the CIE photopic luminosity function, minimizing lux measurement error across fluorescent, incandescent, and daylight sources. While absolute conversion factor varies slightly (e.g., 61 µA/1000 lux for fluorescent), its linearity and temperature compensation maintain consistent relative response-enabling reliable closed-loop brightness control without per-source calibration.
Can the NC pin on ISL29000IROZ be grounded or left floating?
Yes, Pin 4 (NC) is internally unconnected and may be left floating or tied to GND with no functional impact. The datasheet confirms it has no electrical role; grounding it poses no risk and may aid mechanical stability in some PCB layouts, but is not required for operation.
What is the thermal pad connection recommendation for ISL29000IROZ?
The exposed thermal pad on the ISL29000IROZ can be electrically connected to GND or left isolated-the datasheet explicitly states both options are valid. No thermal vias are required due to low power dissipation (<1 mW), and isolation avoids potential ground loop issues in sensitive analog sections. Layout should follow the recommended land pattern in L5.2×2.1 drawing.
ISL29000IROZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 5-WDFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Obsolete
- Type:
- Ambient
- Wavelength:
- 550nm
- Proximity Detection:
- No
- Output Type:
- Current
- Voltage - Supply:
- 2.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 5-ODFN (2x2.1)
ISL29000IROZ FAQ
1.How can I place an order for ISL29000IROZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL29000IROZ 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 ISL29000IROZ reliable?
The price and inventory of ISL29000IROZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL29000IROZ is usually 5 days.
3.What payment methods are accepted for ISL29000IROZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL29000IROZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL29000IROZ?
ISL29000IROZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL29000IROZ 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 ISL29000IROZ?
For technical support, including ISL29000IROZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL29000IROZ requirements.
6.How does Aetrix verify that ISL29000IROZ is sourced from the original manufacturer or authorized distributors?
All ISL29000IROZ 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 ISL29000IROZ meets industry standards.
7.What is the process for return or replacement of ISL29000IROZ?
All ISL29000IROZ units undergo pre-shipment inspection (PSI). If there is an issue with ISL29000IROZ, 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 ISL29000IROZ part is unused and in its original packaging.
Return procedure for ISL29000IROZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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