1 hz interrupt generato r slg7nt4198 v silego technology, inc. rev 1.0 slg7nt4198_ds_r100 revised march 4, 2014 slg7nt4198_gp_r003 general description silego slg7nt4198v is a low power and small form device. the soc is housed in a 2mm x 2mm tdfn package which is optimal for using with small devices. features ? low power consumption ? 3.3v supply ? pb-free / rohs compliant ? halogen-free ? tdfn-8 package pin configuration 1 2 3 4 8 7 6 5 vdd nmi_gate mbl_pwrgd_mr_n sense smc_rst_n ex_vref smc_init_ck gnd tdfn-8 top view thermal pad connected to gnd slg7nt4198v output summary ? 1 output ? push pull ? 1 output ? open drain
1 hz interrupt generato r slg7nt4198 v slg7nt4198_ds_r100 page 2 pin configuration pin # pin name type pin description 1 vdd power 3.3v supply voltage 2 nmi_gate input digital input 3 mbl_pwrgd_mr_n input digital input 4 sense input analog input 5 gnd gnd ground 6 smc_init_ck output push pull 7 smc_rst_n output open drain 8 ex_vref input analog input exposed bottom pad gnd gnd ground ordering options & configuration part number package type slg7nt4198v v = tdfn-8 SLG7NT4198VTR vtr = tdfn-8 ? tape and reel (3k units)
1 hz interrupt generato r slg7nt4198 v slg7nt4198_ds_r100 page 3 absolute maximum ratings parameter min. max. unit v dd to gnd -0.3 4.6 v voltage at input pins -0.3 4.6 v current at input pin -1.0 1.0 ma storage temperature range -65 150 c junction temperature -- 150 c electrical characteristics symbol parameter condition / note min typ max unit v dd supply voltage 3.0 3.3 3.6 v i q quiescent current static i nputs and outputs -- 30 -- -40 25 85 c v air analog input voltage range for pin8 0 -- 1.5 v v ih high-level input voltage logic input 1.8 -- -- v v il low-level input voltage logic input -- -- 0.8 v i ih high-level input leakage current logic input pins; vin=3.3v -1.0 -- 1.0 a i il low-level input leakage current logic input pins; vin=0v -1.0 -- 1.0 a v oh high-level output voltage push pu ll logic level outputs 2.4 -- -- v v ol low-level output voltage push pull logic level outputs -- -- 0.4 v v ol low-level output voltage open drain logic level outputs -- -- 0.4 v i oh high-level output current push pull -- 8 -- ma i ol low-level output current push pull -- -8 -- ma i ol low-level output current open drain -- 20 -- ma v offset analog comparator offset voltage analog comparator 0 -- 20 -- mv v hyst analog comparator hysteresis analog comparator 0 -- 50 -- mv r pull up internal pull up resistance pull up on pin3 80 100 120 k ? t dly0 delay0 time 16 20 24 ms t dly2 delay2 time 1.6 2 2.4 ms t stu p start up time after v dd > 2.4v -- 7 -- ms
1 hz interrupt generato r slg7nt4198 v slg7nt4198_ds_r100 page 4 description this is a special oscillator with supervisor system. three i nputs are used to control the oscillator. sense (pin4) controls the voltage supply of the chip. if supply voltage decreases do wn to the threshold set by ex_vref (pin8), the chip disables the oscillator and sets smc_inick to low. w hen the voltage is bigger than threshold set by ex_vref is detected on the sense pin, smc_rst_n (p in7) is set to high with 20 ms delay and enables the oscillator. mbl_pwrgd_mr_n (pin3) is used for manual reset of sm c_rst_n. use nmi_gate (nmi_gate) to disable the oscillator. typical application circuit u1 slg7nt4198 vdd 1 data i 2 data i/o 3 data i/o 4 data i/o 6 data i/o 7 data i/o 8 gnd 5 c1 100nf r1 r2 +3.3v sense ex_vref smc_init_clk smc_rst_n nmi_gate mbl_pgood _mr r3 v_source timing diagrams
1 hz interrupt generato r slg7nt4198 v slg7nt4198_ds_r100 page 5 package top marking datasheet revision programming code number part code revision date 1.0 03 zr b 03/04/2014
1 hz interrupt generato r slg7nt4198 v slg7nt4198_ds_r100 page 6 package drawing and dimensions tdfn-8 package
1 hz interrupt generato r slg7nt4198 v slg7nt4198_ds_r100 page 7 tape and reel specification package type # of pins nominal package size (mm) max units reel & hub size (mm) t r ailer a leader b pocket (mm) per reel per box pockets length (mm) pockets length (mm) width pitch tdfn 8l 2x2mm green 8 2x2x0.75 3000 3000 178/60 42 168 42 168 8 4 carrier tape drawing and dimensions package type pocket btm length (mm) pocket btm width (mm) pocket depth (mm) index hole pitch (mm) pocket pitch (mm) index hole diameter (mm) index hole to tape edge (mm) index hole to pocket center (mm) tape width (mm) a0 b0 k0 p0 p1 d0 e f w tdfn 8l 2x2mm green 2.3 2.3 1.05 4 4 1.55 1.75 3.5 8 recommended reflow soldering profile please see ipc/jedec j-std-020: latest revision fo r reflow profile based on package volume of 4.6875 mm 3 (nominal). more information can be found at www.jedec.org .
1 hz interrupt generato r slg7nt4198 v slg7nt4198_ds_r100 page 8 datasheet revision history date version change 05/29/2013 0.1 new design 07/09/2013 0.12 jump to 0.12 version. changed pwm frequency to 1hz 07/09/2013 0.13 updated device revision table 07/11/2013 0.14 changed pin7 configuration to open drain 08/07/2013 0.15 updated device revision table 03/04/2014 1.0 production release
1 hz interrupt generato r slg7nt4198 v slg7nt4198_ds_r100 page 9 silego website & support silego technology website silego technology provides online support via our website at http://www.silego.com/ .this website is used as a means to make files and information easily available to customers. for more information regarding silego green products, please visit: http://greenpak.silego.com/ http://greenpak2.silego.com/ http://greenfet.silego.com/ http://greenfet2.silego.com/ http://greenclk.silego.com/ products are also available for purchase direct ly from silego at the silego online store at http://store.silego.com/ . silego technical support datasheets and errata, application notes and example desig ns, user guides, and hardware support documents and the latest software releases are available at the silego website or can be requested directly at info@silego.com . for specific greenpak design or applications questi ons and support please send email requests to greenpak@silego.com users of silego products can receive assistance through several channels: contact your local sales representative customers can contact their local sales representative or fiel d application engineer (fae) for support. local sales offices are also available to help customers. more information rega rding your local representative is available at the silego website or send a request to info@silego.com contact silego directly silego can be contacted directly via e-mail at info@silego.com or user submission form, located at the following url: http://support.silego.com/ other information the latest silego technology press releases, listing of semi nars and events, listings of world wide silego technology offices and representatives are all available at http://www.silego.com/ this product has been designed and qualified for the consum er market. applications or uses as critical components in life support devices or syst ems are not authorized. silego technology does not assume any liability aris ing out of such applications or uses of its products. silego technology reserves the right to improve product design, functions and reliability without notice.
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