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ISL29029 Datasheet(PDF) 11 Page - Intersil Corporation |
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ISL29029 Datasheet(HTML) 11 Page - Intersil Corporation |
11 / 16 page ISL29029 11 FN7682.0 November 23, 2010 Soldering Considerations Convection heating is recommended for reflow soldering; direct- infrared heating is not recommended. The plastic ODFN package does not require a custom reflow soldering profile, and is qualified to +260°C. A standard reflow soldering profile with a +260°C maximum is recommended. Suggested PCB Footprint It is important that users check the “Surface Mount Assembly Guidelines for Optical Dual FlatPack No Lead (ODFN) Package” before starting ODFN product board mounting. (http://www.intersil.com/data/tb/TB477.pdf) Layout Considerations The ISL29029 is relatively insensitive to layout. Like other I2C devices, it is intended to provide excellent performance even in significantly noisy environments. There are only a few considerations that will ensure best performance. Route the supply and I2C traces as far as possible from all sources of noise. A 0.1µF and 1µF power supply decoupling capacitors need to be placed close to the device. ADDR0 1 GND 3 REXT 4 SDA INT 7 IRDR 8 ISL29029 R1 10kΩ R2 10kΩ REXT 499kΩ VDD MICROCONTROLLER INT SDA SLAVE_0 SLAVE_1 I2C SLAVE_n I2C MASTER SCL SDA SCL SDA VI2C_PULL-UP 6 R3 10kΩ SCL 2 VDD 5 C2 0.1µF FIGURE 5. ISL29029 TYPICAL CIRCUIT SCL C1 1µF VIR-LED |
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