 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| www..com ISSUED DATE :2006/08/18 REVISED DATE : GN809 Description Processor Supervisory The GN809 family allows the user to customize the CPU reset function without any external components. The user has a large choice of reset voltage thresholds and output driver configurations, all of which are preset at the factory. Each wafer is trimmed to the customer's specifications. These circuits monitor the power supply voltage of up based systems. When the power supply voltage drops below the voltage threshold a reset is asserted immediately (within an interval TD1). The reset remains asserted after the supply voltage rises above the voltage threshold for a time interval, TD2. The reset output is active low (RESETB). The reset output may be configured as either push/pull or open drain. The state of the reset output is guaranteed to be correct for supply voltage greater than 1V. Space saving SOT-23 package and micropower quiescent current (<3.0uA) make this family a natural for portable battery powered equipment. Features & Tight Voltage Threshold Tolerance 1.5% Typical Operating Circuit Applications & Power Supplies &Wide Temperature Range -40 : to 80 : &Low Quiescent Current <3.0uA &Lead Free Products Meet RoHS standards GN809 &Data Acquisition Systems &Applications using CPUs &Consumer Electronics &Computer Peripherals &Portable Electronics Package Dimensions SOT-23 Note:* External pull-up resistor is required if open-drain output is used. 10k is recommended. REF. A B C D E F Millimeter Min. Max. 2.70 3.10 2.40 2.80 1.40 1.60 0.35 0.50 0 0.10 0.45 0.55 REF. G H K J L M Millimeter Min. Max. 1.90 REF. 1.00 1.30 0.10 0.20 0.40 0.85 1.15 0C 10 C Block Diagram GN809 with Push-Pull RESET GN809 Page: 1/4 www..com ISSUED DATE :2006/08/18 REVISED DATE : Pin Description Pin Name Gnd RESETB VIN Ground RESETB is active low and push-pull output Pin Description Positive power supply. A reset is asserted after this voltage drops below a predetermined. After VIN rises above that level the reset output remains asserted until the end of the reset timeout period. Absolute Maximum Ratings Parameter Input Voltage Input Current, VIN Output Current, RESETB Rate of Rise, VIN Ambient Temperature Range Junction Temperature Range Storage Temperature Range Maximum Junction Temperature Thermal Resistance Internal Power Dissipation Solder Iron (10 Sec)* EDS Classification Symbol VIN Ratings 7 20 20 100 Unit V mA mA V/ s : : : : : /W : /W mW : TA TJ TSTG Tj Max jc ja PD -40 ~ +85 -40 ~ +125 -65 ~ +150 150 140 285 400 350 B** Caution: Stress above the listed absolute maximum rating may cause permanent damage of the device *MIL-STDS-202G 210F **HBM B: 2000V ~ 3999V Electrical Characteristics Ta=25 : (unless otherwise noted) Parameter VIN Range Supply Current Symbol VRange IIN Condition TA=-40 : ~ +85 : VIN= VTH*1.10 VIN= VTH*1.10, TA=-40 : ~ +85 : Min 1 - TYP 30 50 - Max 5.5 3.0 5.0 Unit V A VTH(NOM) Reset Threshold Voltage Hysteresis Range (Note2) RESET Threshold Tempco (Note2) RESETB Output Voltage Low RESETB Output Voltage High VIN to Reset Delay Reset Timeout Period 2: Guaranteed by Design VTH TA=-40 : ~ +85 : -1.5% -2.0% 10 30 VTH(NOM) +1.5% +2.0% 60 160 0.2 VTH(NOM) VTH(NOM) mV mV ppm V VHYST VRelease-VTH (Note1) VOL VIN - VOH TD1 TD2 VIN>VTH(MAX) 0.8*VIN - - V VIN= VTH-100mV, TA=-40 : ~ +85 : TA=-40 : ~ +85 : 80 40 150 230 S mS Note 1: The data based on VTH=2.7V part type. GN809 Page: 2/4 www..com ISSUED DATE :2006/08/18 REVISED DATE : Ordering Information ( contd.) Part Number GN809-20 GN809-23 GN809-29 GN809-46 Marking 820XX 823XX 829XX 846XX Output Voltage 2.00V 2.32V 2.93V 4.63V Part Number GN809-21 GN809-26 GN809-31 Marking 821XX 826XX 831XX Output Voltage 2.10V 2.63V 3.08V Timing Diagram Application Information Supply Transients These device have a certain immunity to fast negative going transients. In the following pages the graph titled "Glitch Rejection" indicates the maximum allowable glitch amplitude and duration to avoid triggering an unintended reset. As shown in the graph shorter transient can have large amplitudes without triggering resets. Characteristics Curve GN809 Page: 3/4 www..com ISSUED DATE :2006/08/18 REVISED DATE : GN809-26 GN809-26 GN809-26 210 190 170 150 GN809-26 130 110 90 Important Notice: All rights are reserved. Reproduction in whole or in part is prohibited without the prior written approval of GTM. GTM reserves the right to make changes to its products without notice. GTM semiconductor products are not warranted to be suitable for use in life-support Applications, or systems. GTM assumes no liability for any consequence of customer product design, infringement of patents, or application assistance. Head Office And Factory: Taiwan: No. 17-1 Tatung Rd. Fu Kou Hsin-Chu Industrial Park, Hsin-Chu, Taiwan, R. O. C. TEL : 886-3-597-7061 FAX : 886-3-597-9220, 597-0785 China: (201203) No.255, Jang-Jiang Tsai-Lueng RD. , Pu-Dung-Hsin District, Shang-Hai City, China TEL : 86-21-5895-7671 ~ 4 FAX : 86-21-38950165 GN809 Page: 4/4 |
Price & Availability of GN809
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |