ec49021as/ad dual/single usb charger port contro ller e-cmos corp. ( www.ecmos.com.tw ) page 1 of 5 5j21n-rev.f001 descriptions the ec49021a are usb dedicated charging port (dcp) controllers. an auto-detect feature monitors usb data line voltage, and automatically provides the correct electrical signatures on the data lines to charge c ompliant devices among the following dedicated charging schemes: divider 1 dcp, required to apply 2 v and 2.7 v on the d+ and dC lines respectively. divider 2 dcp, required to apply 2.7 v and 2 v on the d+ and dC lines respectively. bc1.2 dcp, required to short the d+ line to the dC line chinese telecom standard yd/t 1591-2009 shorted mo de, required to short the d+ line to the dC line. 1.2 v on both d+ and dC lines. feature supports usb dcp shorting d+ line to d- line per usb battery charging specification, revision 1.2(bc 1.2). supports shorted mode (shorting d+ line to d- lin e) per chinese telecommunication industry standard yd/t 1591-2009. supports usb dcp applying 2.7 v on d+ line and 2 v on d- line (or usb dcp applying 2 v on d+ line an d 2.7 v on dC line). supports usb dcp applying 1.2 v on d+ and dC line s. automatically switch d+ and d- lines connections for an attached device. dual usb port controller, EC49021AD. single usb port controller, ec49021as. operating range: 4.5 v to 5.5 v. available in sot23-6 package. application vehicle usb power charger ac-dc adapter with usb port other usb charger ordering information ec49021ax xx x b3 sot23-6 r tape & reel s single port d dual port
ec49021as/ad dual/single usb charger port contro ller e-cmos corp. ( www.ecmos.com.tw ) page 2 of 5 5j21n-rev.f001 pin configuration pin description ec49021asb3r no. name type description 1 dp1 i/o connected to the d+ or dC line of usb connector, pr ovide the correct voltage with attached portable equipment for dcp detection. 2 gnd g ground connection 3 n/c C no connect pin. can be grounded or left flo ating. 4 n/c C no connect pin. can be grounded or left flo ating. 5 in p power supply. connect a ceramic capacitor with a va lue of 0.1- f or greater from the in pin to gnd as close to the device as possible. 6 dm1 i/o connected to the d+ or dC line of usb connector, pr ovide the correct voltage with attached portable equipment for dcp detection. EC49021ADb3r no. name type description 1 dp1 i/o connected to the d+ or dC line of usb connector, pr ovide the correct voltage with attached portable equipment for dcp detection. 2 gnd g ground connection 3 dp2 i/o connected to the d+ or dC line of usb connector, pr ovide the correct voltage with attached portable equipment for dcp detection. 4 dm2 i/o connected to the d+ or dC line of usb connector, pr ovide the correct voltage with attached portable equipment for dcp detection. 5 in p power supply. connect a ceramic capacitor with a va lue of 0.1- f or greater from the in pin to gnd as close to the device as possible. 6 dm1 i/o connected to the d+ or dC line of usb connector, pr ovide the correct voltage with attached portable equipment for dcp detection. part number package marking marking information ec49021asb3r sot23-6l 49021 aslll 1. lll lot no. EC49021ADb3r sot23-6l 49021 adlll 2. lll lot no. ec49021asb3r EC49021ADb3r
ec49021as/ad dual/single usb charger port contro ller e-cmos corp. ( www.ecmos.com.tw ) page 3 of 5 5j21n-rev.f001 typical application 2 10w application 10w application functional block diagram
ec49021as/ad dual/single usb charger port contro ller e-cmos corp. ( www.ecmos.com.tw ) page 4 of 5 5j21n-rev.f001 absolute maximum rating symbol parameter maximum units v dp1 dp1data line input voltage 0.3~7v v v dm1 dm1 data line input voltage 0.3~7v v v dp2 dp2 data line input voltage 0.3~7v v v dm2 dm2 data line input voltage 0.3~7v v v in input voltage of in 0.3~7v v v hbm esd voltage human body model 2 kv v mm esd voltage machine model 200 v t a operating junction temperature -40~120 t s storage temperature range -55~150 electrical characteristics symbol test conditions min typ max unit i in v in =5v 155 200 ua uvlo v uvlo 3.9 4.1 4.3 v v uvlo 100 mv bc 1.2 dcp mode (short mode) r dpm_short1 v dp1 =0.8v i dm1 =1ma 157 200 r dchg_short1 v dp1 =0.8v 350 656 1150 k v dpl_th_detach1 0.31 0.33 0.35 v vhyst 50 mv r dpm_short2 v dp2 =0.8v i dm2 =1ma 157 200 r dchg_short2 v dp2 =0.8v 350 656 1150 k v dpl_th_detach2 0.31 0.33 0.35 v divider mode v dp1_2.7v v in =5v 2.57 2.7 2.84 v v dm1_2v v in =5v 1.9 2.0 2.1 v r dp1_pad1 i dp1 =-5ua 24 30 36 k r dm1_pad1 i dp1 =-5ua 24 30 36 k v dp2_2.7v v in =5v 2.57 2.7 2.84 v v dm2_2v v in =5v 1.9 2.0 2.1 v r dp2_pad1 i dp2 =-5ua 24 30 36 k r dm2_pad1 i dp2 =-5ua 24 30 36 k 1.2v / 1.2v mode v dp1_1.2v v in =5v 1.12 1.2 1.28 v vdm1_1.2v v in =5v 1.12 1.2 1.28 v r dp1_pad2 i dp1 =-5ua 80 102 130 k r dm1_pad2 i dp1 =-5ua 80 102 130 k v dp2_1.2v v in =5v 1.12 1.2 1.28 v v dm2_1.2v v in =5v 1.12 1.2 1.28 v r dp2_pad2 i dp2 =-5ua 80 102 130 k r dm2_pad2 i dp2 =-5ua 80 102 130 k v dp2_2.7v v in =5v 2.57 2.7 2.84 v
ec49021as/ad dual/single usb charger port contro ller e-cmos corp. ( www.ecmos.com.tw ) page 5 of 5 5j21n-rev.f001 outline drawing ( sot23-6 )
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