LC717A00AR ONSEMI | Alldatasheet
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 13
Technical content
Features
- Detection System: Differential Capacitance Detection (Mutual Capacitance Type)
- Input Capacitance Resolution: Can Detect Capacitance Changes in the Femto Farad Order
- Measurement Interval (8 Differential Inputs): ♦ 18 ms (Typ) (at Initial Configuration) ♦ 3 ms (Typ) (at Minimum Interval Configuration)
- External Components for Measurement: Not Required
- Current Consumption: ♦ 320 /C0109A (Typ) (VDD = 2.8 V) ♦ 740 /C0109A (Typ) (VDD = 5.5 V)
- Supply V oltage: 2.6 V to 5.5 V
- Detection Operations: Switch
- Packages: VCT28
- Interface: I2C Compatible Bus or SPI Selectable www.onsemi.com VCT28 CASE 601AE MARKING DIAGRAM See detailed ordering and shipping information on page 11 of this data sheet.
ORDERING INFORMATION
XXXXX = Specific Device Code Y = Year M = Month DDD = Additional Traceability Data XXXXXXXX YMDDD
Table 1. ABSOLUTE MAXIMUM RATINGS (TA = 25°C, VSS = 0 V) should not be assumed, damage may occur and reliability may be affected.
- Apply to Cin0 to 7, Cref, nRST, SCL, SDA, SA, SCK, SI, nCS, GAIN.
- Apply to Cdrv, Pout0 to 7, SDA, SO, ERROR, INTOUT.
- 4-layer glass epoxy board (40 × 50 × 0.8t mm).
Table 2. RECOMMENDED OPERATING CONDITIONS the Recommended Operating Ranges limits may affect device reliability.
- Inserting a high-valued capacitor and a low-valued capacitor in parallel between V
capacitor should be at least 0.1 /C0109F, and is mounted near the LSI. Table 3. ELECTRICAL CHARACTERISTICS (VSS = 0 V, VDD = 2.6 to 5.5 V, TA = −40 to +105°C, Unless otherwise specified, the Cdrv drive frequency is fCDRV = 143 kHz.
Table 3. ELECTRICAL CHARACTERISTICS (continued) (VSS = 0 V, VDD = 2.6 to 5.5 V, TA = −40 to +105°C, Unless otherwise specified, the Cdrv drive frequency is fCDRV = 143 kHz.
0.8 VDD − − V (Note 9)
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
- Design-guaranteed values (not tested before shipment).
- Measurements conducted using the test mode in the LSI.
- Apply to nRST, SCL, SDA, SA, SCK, SI, nCS, GAIN.
- Apply to Cdrv, Pout0 to 7, SO, ERROR, INTOUT.
10.Apply to nRST, SCL, SDA, SA, SCK, SI, nCS, GAIN.
Table 4. I2C COMPATIBLE BUS TIMING CHARACTERISTICS performance may not be indicated by the Electrical Characteristics if operated under different conditions.
- Design-guaranteed values (not tested before shipment).
Table 5. SPI BUS TIMING CHARACTERISTICS performance may not be indicated by the Electrical Characteristics if operated under different conditions. 12.Design-guaranteed values (not tested before shipment).
Figure 8. Block Diagram
Figure 9. Pin Assignment
26 SA/SOCin7 10
25 SDA/SIPout0 11
24 SCL/SCKPout1 12
23 GAINPout2 13
22 INTOUTPout3 14
15 Pout4Cin4 7
16 Pout5VSS 6
17 Pout6VDD 5
18 Pout7Cin3 4
19 CrefCin2 3
20 ERRORCin1 2
21 CdrvCin0 1
Table 7. PIN ASSIGNMENT
1 Cin0 15 Pout4
2 Cin1 16 Pout5
3 Cin2 17 Pout6
4 Cin3 18 Pout7
5 VDD 19 Cref
6 VSS 20 ERROR
7 Cin4 21 Cdrv
8 Cin5 22 INTOUT
9 Cin6 23 GAIN
10 Cin7 24 SCL/SCK
11 Pout0 25 SDA/SI
12 Pout1 26 SA/SO
13 Pout2 27 nCS
14 Pout3 28 nRST
Table 8. PIN FUNCTION
Table 8. PIN FUNCTION (continued) capacitor should be at least 0.1 /C0109F, and is mounted near the LSI. 14.When VSS terminal is not grounded in battery-powered mobile equipment, detection sensitivity may be degraded. doing so, Cdrv and Cin patterns are capacitively coupled. pattern as 8-bit digital data. to detect the capacitance change correctly. being measured are all in “Low” condition. Leave the unused terminals open. connecting any capacitance between this pin and Cdrv pin. detect capacitance change in each Cin pin correctly. a “Low” depending on the result. so that they are capacitively coupled. a measurement process is completed. Leave the terminal open if not in used. If interface is not to be used, fix the pin to “High”. a communication terminal on board is still recommended.
minimum setting when GAIN pin is “High”. Interface selection/Chip-select-inverting input (SPI). until LSI is again initialized. If interface is not to be used, fix the pin to “High”. nRST pin is “Low”, LSI is in the reset state. input pin of the SPI depending on the mode of operation. If interface is not to be used, fix the pin to “High”. a communication terminal on board is still recommended. If interface is not to be used, fix the pin to “High”. a communication terminal on board is still recommended. Table 9. ORDERING INFORMATION Specifications Brochure, BRD8011/D.
www.onsemi.com PACKAGE DIMENSIONS VCT28 3.5x3.5 CASE 601AE ISSUE A 3.5±0.08 3.5±0.08 TOP VIEW SIDE VIEW 0.8±0.05 0.15 LASER MARKED INDEX 0.05 S S (0.035) SIDE VIEW BOTTOM VIEW 0.4±0.05 0.19±0.05 (0.125) (0.09) 0.05 (C0.09) 0.4 (0.55) (Unit: mm) 3.20 3.20 0.19 0.40 0.70 SOLDERING FOOTPRINT* NOTE: The measurements are not to guarantee but for reference only. *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. 0.20
www.onsemi.com ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries i n the United States and/or other countries. ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent coverage ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. Buyer is responsible for its products and applications using ON Semiconductor products, including compliance with all laws, regulations and safety requirements or standards, regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON Semiconductor data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. PUBLICATION ORDERING INFORMATION N. American Technical Support: 800−282−9855 Toll Free USA/Canada Europe, Middle East and Africa Technical Support: Phone: 421 33 790 2910 Japan Customer Focus Center Phone: 81−3−5817−1050 LC717A00AR/D I2C Bus is a trademark of Philips Corporation. LITERATURE FULFILLMENT: Literature Distribution Center for ON Semiconductor 19521 E. 32nd Pkwy, Aurora, Colorado 80011 USA Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada Fax: 303−675−2176 or 800−344−3867 Toll Free USA/Canada Email: orderlit@onsemi.com ON Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your local Sales Representative