ambient light sensor RENESAS ISL29102IROZ-T7 with wide dynamic input luminance range and output voltage drive
Product Overview
The ISL29102 is a low-power, ambient light-to-voltage nonlinear converter designed for cost-effective light sensing. It integrates a photodiode array, a nonlinear current amplifier, and a micro-power op amp on a single monolithic IC. The device mimics the human eye's spectral response, with peak sensitivity at 550nm and a range from 400nm to 600nm, effectively rejecting UV and IR light. Its square root amplification extends the dynamic input luminance range from 0.3 lux to 10,000 lux, providing excellent sensitivity at low light conditions. A dark-current compensation circuit minimizes temperature-dependent leakage, further enhancing low-light sensitivity. The integrated 1A op amp offers output voltage driving capability for heavier loads. The ISL29102 is housed in an ultra-compact 2mmx2.1mm ODFN surface mount package and operates from -40C to +85C.
Product Attributes
- Brand: Intersil (implied by product number and datasheet format)
- Certifications: RoHS compliant, Pb-free
- Package: 6 Ld ODFN (2mmx2.1mmx0.7mm)
Technical Specifications
| Parameter | Value | Condition |
| Input Light Intensity Range | 0.3 lux to 10,000 lux | Square root relationship |
| Supply Voltage (VDD) | 1.8V to 3.3V | - |
| Supply Current (IDD) | 0.65 A (typ) | E = 0 lux |
| Supply Current (IDD) | 3.5 A (typ) | E = 100 lux |
| Supply Current (IDD) | 10-15 A (typ) | E = 1,000 lux |
| Light-to-Voltage Accuracy (VOUT1) | 0.460V to 0.680V (typ) | E = 1000 lux |
| Voltage Output in Absence of Light (VDARK) | 20mV to 50mV (typ) | E = 0 lux, REXT = 10M |
| Output Voltage Variation (3 Light Sources) | 10% (max) | - |
| Power Supply Rejection Ratio (PSRR) | 2.5 mV/V (typ) | E = 100 lux, VDD = 1.8V to 3.6V |
| Maximum Output Compliance Voltage (VO-CMPL) | VDD - 0.7V | 95% of nominal output |
| Rise Time (tR) | 68 s (typ) | E = 0 lux to 300 lux |
| Fall Time (tF) | 1830 s (typ) | E = 300 lux to 0 lux |
| Delay Time for Rising Edge (tD) | 352 s (typ) | E = 0 lux to 300 lux |
| Delay Time for Falling Edge (tS) | 22 s (typ) | E = 300 lux to 0 lux |
| Op Amp Short Circuit Current (ISC) | 11 mA (typ) | - |
| Op Amp Slew Rate (SR) | 10 V/ms (typ) | - |
| Op Amp Offset Voltage (VOS) | 1.2 mV (typ) | - |
| Operating Temperature Range | -40C to +85C | - |
| Storage Temperature Range | -40C to +100C | - |
| Maximum Die Temperature | +90C | - |
| Thermal Resistance (JA) | 88 C/W (typ) | 6 Ld ODFN (Note 4) |
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