Os motores de busca de Datasheet de Componentes eletrônicos |
|
ISL29027 Folha de dados(PDF) 1 Page - Intersil Corporation |
|
ISL29027 Folha de dados(HTML) 1 Page - Intersil Corporation |
1 / 13 page 1 Proximity Sensor with Intelligent Interrupt and Sleep Modes ISL29027 The ISL29027 is an integrated infrared light-to-digital converter with a built-in IR LED driver and I2C Interface (SMBus Compatible). The flexible interrupt scheme is designed for minimal microcontroller utilization. For proximity sensor (Prox) data conversions, the built-in driver turns on an external infrared LED and the proximity sensor ADC converts the reflected IR intensity to digital. This ADC rejects ambient IR noise (such as sunlight) and has a 540μs conversion time. The ISL29027 provides proximity sensing with a typical 138μA normal operation current (110μA for sensors and internal circuitry, ~28μA for external LED) with 220mA current pulses for a net 100μs, repeating every 800ms (or under). The ISL29027 uses both a hardware pin and software bits to indicate an interrupt event has occurred. A proximity interrupt is defined as a measurement over a threshold limit. The user may also require that proximity interrupts occur at once, up to 16 times in a row before activating the interrupt pin. The ISL29027 is designed to operate from 2.25V to 3.63V over the -40°C to +85°C ambient temperature range. It is packaged in a clear, lead-free 8 lead ODFN package. Applications - Mobile Devices: Smart Phone, PDA, GPS - Computing Devices: Laptop PC, Netbook - Consumer Devices: LCD-TV, Digital Picture Frame, Digital Camera Features • Works Under All Light Sources Including Sunlight • Intelligent Interrupt Scheme Simplifies μC Code Proximity Sensing • Proximity Sensor with Broad IR Spectrum - Can Use 850nm and 950nm External IR LEDs •IR LED Driver with I2C Programmable Sink Currents -Net 100μs Pulse with 110mA or 220mA Amplitudes - Periodic Sleep Time up to 800ms Between Pulses • Ambient IR Noise Cancellation (Including Sunlight) Intelligent and Flexible Interrupts • Proximity Interrupt Thresholds • Adjustable Interrupt Persistency - 1/4/8/16 Consecutive Triggers Required Before Interrupt Ultra Low Power •138μA DC Typical Supply Current for Prox Sensing -110μA for Sensors and Internal Circuitry -28μA Typical Current for External IR LED (Assuming 220mA for 100μs Every 800ms) •<1.0μA Supply Current When Powered Down Easy to Use • Set Registers; Wait for Interrupt •I2C (SMBus Compatible) Output • Temperature Compensated • Tiny ODFN8 2.0x2.1x0.7 (mm) Package Additional Features • 1.7V to 3.63V Supply for I2C Interface • 2.25V to 3.63V Sensor Power Supply • Pb-Free (RoHS Compliant) •I2C Address Selection Pin REXT GND SCL IR PHOTODIODE LIGHT DATA 4 3 5 2 FOSC IREF IRDR ARRAY PROCESS ALS AND IR CHANNEL ADC 8 INT 7 COMMAND REGISTER DATA REGISTER I2C IR DRIVER INTERRUPT SDA 6 ADDR0 1 FIGURE 1. BLOCK DIAGRAM February 7, 2011 FN7815.0 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 |Copyright Intersil Americas Inc. 2011. All Rights Reserved Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries. All other trademarks mentioned are the property of their respective owners. |
Nº de peça semelhante - ISL29027 |
|
Descrição semelhante - ISL29027 |
|
|
Ligação URL |
Privacy Policy |
ALLDATASHEETPT.COM |
ALLDATASHEET é útil para você? [ DONATE ] |
Sobre Alldatasheet | Publicidade | Contato conosco | Privacy Policy | roca de Link | Lista de Fabricantes All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |