IS31SE5000 IR SENSOR FOR TOUCHLESS MOTION AND PROXIMITY DESCRIPTION PROCEDURE The IS31SE5000 is a low-power, reflectance-based infrared light sensor with advanced signal processing and a digital output. The sensor can detect the movement of nearby objects, making touchless motion possible. The IS31SE5000 evaluation board is fully assembled and tested. Follow the steps listed below to verify board operation. The IS31SE5000 uses one infrared LED to transmit and 2-channel receivers which pick up the reflectance signal from the 2 photodiodes to perform touchless motion detection. When a horizontal motion or an object approaches, the flag bits in the IS31SE5000 status register will be triggered and an interrupt signal is generated to inform the master to read the flag bit through I2C interface. 1) Connect the ground terminal of the power supply to the GND and the positive terminal to the VCC. Or connect the DC power to the connector (DC IN). 2) Turn on the power supply and pay attention to the supply current. If the current exceeds 800mA, please check for circuit fault. FEATURES EVALUATION BOARD OPERATION Supply voltage from 2.7V~5.5V 400kHz I2C compatible interface 1µA shutdown current 0.6mA low supply current Detection range can be adjusted Motion Mode and Proximity Mode Integrated signal processing and digital output Auto interrupt clear Package in UTQFN-12 (2mm × 2mm) QUICK START Figure 1: Photo of IS31SE5000 Evaluation Board Caution: Do not turn on the power supply until all connections are completed. The evaluation board is controlled by an LPC922. IS31SE5000 evaluation board supports both Motion and Proximity Modes. Pressing a button switch will select between 4 operating modes. 1) Mode 1(Default): Motion Mode (The emitting current is 400mA and detect distance is 9cm). The Right LED will light when an object moves from left to right directly above the IRLED and Photo diode. The Left LED will light when an object moves from right to left directly above the IRLED and Photo diode. 2) Mode 2：Motion Mode (The emitting current is 210mA and detect distance is 7.5cm). The Right LED will light when an object moves from left to right directly above the IRLED and Photo diode. The Left LED will light when an object moves from right to left directly above the IRLED and Photo diode. 3) Mode 3：Proximity Mode (The emitting current is 400mA and detect distance is 15cm). Both the Left and Right LEDs will light when an object is close to the IRLED and Photo diode. 4) Mode 4：Proximity Mode (The emitting current is 210mA and detect distance is 12cm). Both the Left and Right LEDs will light when an object is close to the IRLED and Photo diode. SOFTWARE SUPPORT RECOMMENDED EQUIPMENT Please refer to the integrated program. The jumper JP1 is closed by default. If you want to use an external MCU to control IS31SE5000, JP1 should be opened, the on board MCU will stop working and its I2C ports will be high impedance. Connect the external MCU to the I2C connector TP3 to control the IC. 5.0V, 2A power supply ABSOLUTE MAXIMUM RATINGS ≤ 5.5V power supply Caution: Do not exceed the conditions listed above, otherwise the board will be damaged. Integrated Silicon Solution, Inc. – www.issi.com Rev. A, 01/06/2015 Please refer to the datasheet to get more information about IS31SE5000. 1 IS31SE5000 IR SENSOR FOR TOUCHLESS MOTION AND PROXIMITY ORDERING INFORMATION Part No. Temperature Range Package IS31SE5000-UTLS2-EB -40°C ~ +85°C (Industrial) UTQFN-12, Lead-free Table 1: Ordering Information For pricing, delivery, and ordering information, please contacts ISSI’s analog marketing team at [email protected] or (408) 969-6600. 3V BP 0R R8 10 LDO C6 C7 NC 1uF VCC C2 1uF SDA 1 JP1 2 3 RST 4 5 3V K1 R5 100K 6 7 INT 8 9 MODE VCC 10 P0.0 P0.1 P1.7 P0.2 P1.6 P0.3 RST P0.4 GND P0.5 OSC1 OSC2 VDD P0.6 INT1/P1.4 T1/P0.7 INT0/P1.3 T0/P1.2 TXD/P1.0 RXD/P1.1 20 SDA 19 SCL 18 SDB 17 P0.4 16 P0.5 R4 R1 R3 R2 100K 4.7K 4.7K 4.7K 4 SCL 3 INT 2 SDB 1 1uF 3V 13 12 11 8 RX1 D4 SDA SCL 7 RX2 D5 INTB SDB 12 GND TP3 3V C5 Optional (Note 1) D3 IS31SE5000 15 14 11 IRLED 3V U2 OPEN=EXT CTRL D2 U1 0R EN GND Vdd Vout 2 1 R9 VCC C3 10nF 4 U3 5 1uF 3 C4 Right R7 1k R6 1k 3V P0.5 P0.4 RST GND 5 4 3 2 1 CON1 TP4 VCC TP1 C1 DC IN ICP NC GND INT SDA SCL SDB 1 2 3 4 5 TP2 LPC922 Left Figure 2: IS31SE5000 Application Schematic Integrated Silicon Solution, Inc. – www.issi.com Rev. A, 01/06/2015 2 IS31SE5000 IR SENSOR FOR TOUCHLESS MOTION AND PROXIMITY BILL OF MATERIALS Name Symbol Description Qty Supplier Part No. Sensor IC U1 IR sensor for touch less motion and proximity 1 ISSI IS31SE5000 MCU U2 Microcontroller 1 NXP LPC922 LDO U3 Low-dropout regulator 1 PAM PAM3101 LED Blue Left, Right Diode, LED Blue, SMD 2 Everlight 19-217/BHC-ZL1M2RY/3T Resistor R1~R3 RES,4.7k,1/16W,±5%,SMD 3 Yageo RC0603JR-074K7L Resistor R4, R5 RES,100k,1/16W,±5%,SMD 2 Yageo RC0603JR-07100KL Resistor R6, R7 RES,1k,1/16W,±5%,SMD 2 Yageo RC0603JR-071KL Resistor R8 RES,0Ω,1/10W,±5%,SMD 1 Yageo RL0805JR-070RL Resistor R9 RES,0Ω,1/16W,±5%,SMD 1 Yageo RL0603JR-070RL Capacitor C1, C6 Not connect 2 Capacitor C2,C4 CAP,1µF,25V,±10%,SMD 2 Yageo CC0805KKX7R8BB105 Capacitor C5,C7 CAP,1µF,50V,±10%,SMD 2 Yageo CC0603KKX7R9BB105 Capacitor C3 CAP,10nF,50V,±10%,SMD 1 Yageo CC0603KKX7R9BB103 IRLED D2 IRLED 1 Everlight IR11-21C/TR8 PD D4,D5 Photodiodes 2 Everlight PD15-22C-R/TR8 PD D3 Not connect (Note 1) Note 1: There is only one photodiode can be put in D4 or D3 locations. Two locations make more choice for customers to select distance between photodiode and IRLED. Bill of Materials, refer to Figure 2 above. Integrated Silicon Solution, Inc. – www.issi.com Rev. A, 01/06/2015 3 IS31SE5000 IR SENSOR FOR TOUCHLESS MOTION AND PROXIMITY 0 0 3 1 2 5 4 3 2 1 2 2 2 0 2 2 1 1 0 Figure 3: Board Component Placement Guide - Top Layer Figure 4: Board PCB Layout - Top Layer Integrated Silicon Solution, Inc. – www.issi.com Rev. A, 01/06/2015 4 IS31SE5000 IR SENSOR FOR TOUCHLESS MOTION AND PROXIMITY Figure 5: Board Component Placement Guide - Bottom Layer Figure 6: Board PCB Layout - Bottom Layer Copyright © 2015 Integrated Silicon Solution, Inc. All rights reserved. ISSI reserves the right to make changes to this specification and its products at any time without notice. ISSI assumes no liability arising out of the application or use of any information, products or services described herein. Customers are advised to obtain the latest version of this device specification before relying on any published information and before placing orders for products. Integrated Silicon Solution, Inc. does not recommend the use of any of its products in life support applications where the failure or malfunction of the product can reasonably be expected to cause failure of the life support system or to significantly affect its safety or effectiveness. Products are not authorized for use in such applications unless Integrated Silicon Solution, Inc. receives written assurance to its satisfaction, that: a.) the risk of injury or damage has been minimized; b.) the user assume all such risks; and c.) potential liability of Integrated Silicon Solution, Inc is adequately protected under the circumstances Integrated Silicon Solution, Inc. – www.issi.com Rev. A, 01/06/2015 5