View XC6801A421ER-G_3181170.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

1/18 xc6801 series 1 cell li-ion battery linear charger ic with constant-current/constant-voltage general description the xc6801 series is a constant-current/c onstant-voltage linear charger ic for singl e cell lithium-ion batteries. the xc6801 includes a reference voltage source, battery voltage monitor, dr iver transistor, constant-curren t/constant-voltage charge circu it, overheat protection circuit and phase compensation circuit. the battery charge termination voltage is internally set to 4.2v ? 0.7% and the trickle charge voltage and accuracy is 2.9v ? 3%. in trickle charge mode, a safe battery charge is possible because approximately only 1/10 of the full charge current is supplied to the battery. as it is possible to select a highly accurate charge current of either 100ma (m ax.) for l level input to the lim pin or 500ma (max.) for h level, the series is idea l for applications where the charge is from usb. the series? char ge status output pin, /chg pin, is capable of checking the ic?s charging state via connection to an external led. a pplications ? ? usb charge applications ? ? charging docks, charging cradles ? ? mp3 players, portable audio players ? ? cellular phones, pdas ? ? bluetooth headsets ? features operating voltage range : 4.25v ~ 6.0v charge current (externally set) : 100ma (max.) @ lim pin=l 500ma (max.) @ lim pin=h charge termination voltage : 4.2v ? 0.7% trickle charge voltage : 2.9v ? 3% supply current (stand-by) : 12 a (typ.) packages : sot-89-5, sot-25, usp-6c constant-current/constant-voltage operation with thermal shutdown automatic recharge charge status output pin soft-start function (inrush limit current) typical application circuit etr2502-003a typical performance characteristics ? battery charge cycle xc6801a421 0 100 200 300 400 500 600 700 800 900 1000 0 0.3 0.6 0.9 1.2 1.5 time (hour) charge currenti bat (ma) 3.0 3.3 3.6 3.9 4.2 4.5 battery voltagev bat (v) battery voltage charge current(lim:h) v in =v lim =5v, c in =1.0 f 420mah battery
2/18 xc6801 series pin number sot-25 sot-89-5 usp-6c pin name function 1 5 3 /chg charge status output pin 2 2 2 v ss ground 3 4 1 bat charge current pin 4 3 6 v in input voltage pin 5 1 4 lim changing current switch - - 5 nc no connection designator description symbol description ? setting charge current 1 1:lim?l?=95ma, lim?h?=475ma pr-g sot-89-5 (halogen & antimony free) mr-g sot-25 (halogen & antimony free) ?? - ? packages taping type (*2) er-g usp-6c (halogen & antimony free) pin configuration pin assignment ? product cl a ssification ? ordering information xc6801a42 ????? ? *1 e * the dissipation pad for the usp-6c package should be solder-plated in recommended mount pattern and metal masking so as to enhance mounting strength and heat release. if the pad needs to be connected to ot her pins, it should be connected to the v ss (no. 2) pin. (*1) the ?-g? suffix indicates that the products are hal ogen and antimony free as well as being fully rohs compliant. (*2) the device orientation is fixed in its embossed tape pocket. for reverse orientation, please contact your local torex sales office o r representative. (standard orientation: ? r- ? , reverse orientation: ? l- ? )
3/18 xc6801 series parameter symbol ratings unit v in pin voltage v in v ss C 0.3 ~ + 6.5 v l im pin voltage v lim v ss C 0.3 ~ + 6.5 v bat pin voltage v bat v ss C 0.3 ~ + 6.5 v /chg pin voltage v /chg v ss C 0.3 ~ + 6.5 v bat pin current i bat 900 ma 250 sot-25 600 pcb mounted * 500 sot-89-5 1300 pcb mounted * 120 power dissipation usp-6c pd 1000 pcb mounted * mw operating temperature range topr - 40 ~ + 85 ? storage temperature range tstg - 55 ~ + 125 ? block diagram a bsolute maximum ratings ta = 2 5 ? * the power dissipation figure shown is pcb mounted. please refer to page 15 to 17 for details.
4/18 xc6801 series ta = 2 5 ? parameter symbol conditions min typ max unit circuit input voltage v in 4.25 - 6 v - supply current i ss charge mode v lim =h or v lim =l 12 30 a stand-by current i stby stand-by mode 12 30 a shut-down current i shut shut-down mode (v in 5/18 xc6801 series operational description if the bat pin voltage is less than 2.9v, the charger enters trickle charge mode. in this mode, a safe battery charge is possi ble because approximately only 1/10 of the charge current is supplied to the battery. when the bat pin voltage rises above 2.9v, the charger enters constant-current mode (cc mode) and the battery is charged by the programmed charge current. when the bat pin voltage reaches 4.2v, the charge r enters constant-voltage mode (cv mode) automatically. after this, the charge current starts to drop and when it reaches a level which is 1/10 of the programmed charge current, the charge terminates. the charge current can be set from 475ma typ. or 95ma typ. by the lim pin. lim ?h? level input 475ma typ. lim ?l? level input 95ma typ. the battery charge is terminated when the charge current decreases to 1/10 of the full charging level after the battery pin voltage reaches a float voltage. an internal comparator monitors the i sen pin voltage to detect the charge termination. when the comparator sees that the i sen pin voltage is less than 1.2ms (charge termination detect time), the ic enters stand-by mode. a driver transistor turns off during the stand-by mode. in stand-by mode battery voltage falls. when the voltage level at the battery pin drops to 4.05v or less, the charge cycle automatically re-start after a delay of 1.7ms. as such, no external activation control is needed. failure detection input voltage monitor (uvlo) vin-bat voltage monitor (uvlo) shut-down shut-down charge cycle (charge main routine) trickle charge charge cycle charge cycle constant-current charge (cc) constant-voltage charge (cv) charge termination (stand-by mode) vlim-?h? ibat ? ibat1/10 vlim-?l? ibat ? ibat1/10 m a i n t a i n i ng th e c h arge s t a t e during a charge termination detect time (1ms) m a i n t a i n i ng th e s t an d - b y mo d e during a recharge time (2ms)
6/18 xc6801 series the /chg pin constantly monitors the charge states classified as below: ? strong pull-down: i /chg =10ma (typ.) in a charge cycle, ? weak pull-down: i /chg =20 a (typ.) in a stand-by mode, ? high impedance: in shutdown mode. operational explanation (continued) even if the bat pin is shorted to v ss , a trickle charge mode operates in order to protect the ic from destruction caused by over current. the uvlo circuit keeps the charger in s hut-down mode until the input voltage, v in , rises above the uvlo voltage. moreover, in order to protect the battery charger, the uvlo circuit ke eps the charger in shut-down mode when the voltage between the input pin voltage and bat pin voltage falls to less than 30mv. the charge will not restart until the voltage between the input pin voltage and bat pin voltage rises more than 100mv. during s hut-down mode, the driver trans istor turns off but a failure detection circuit operates, and supply current is reduced to 8 a. to protect against inrush current from the input to the ba ttery, soft-start time is optimized and internally set (150 s, typ.). a backflow prevention circuit protects against current flowing from the bat pin to the v in pin even if the bat pin voltage is higher than the v in pin voltage.
7/18 xc6801 series 1. on?lim vss vin lim /chg bat a 2. c/10?R vss vin lim /chg bat v vss vin lim /chg bat a 3. ????`lim?R ???R?? vin-batg??/chg M?? a a 4. /chg low?R vss vin lim /chg bat v v a 1.0uf 22uf 1.0uf 22uf 1.0uf 1.0uf 5. ??` vss vin lim /chg bat 5 timemeasure 1.0uf 1.0uf v 6. ??rg??ruvlo vss vin lim /chg bat timemeasure timemeasure test circuits 1. on resistance, l im pin current 2. battery termination detect time, recharge battery time c/10 charge termination current threshold, battery termination voltage 3. trickle charge current, battery current, l im pin voltage trickle charge voltage, uvlo, recharge battery threshold voltage v in -v bat shut-down voltage, /chg pin current supply current, stand-by current, shut-down current 4. /chg pin, output low voltage 6. recharge time at charge termination detect, uvlo 5. soft-start
8/18 xc6801 series typical performance characterisitcs 1? 2` xc6801a421 0 20 40 60 80 100 120 3.5 3.6 3.7 3.8 3.9 4.0 4.1 4.2 4.3 ??`?Rv bat (v) ??`i bat (ma) -40 25 85 v in =5v, v lim =0v xc6801a421 0 100 200 300 400 500 600 3.5 3.6 3.7 3.8 3.9 4.0 4.1 4.2 4.3 ??`?Rv bat (v) ??`i bat (ma) -40 25 85 v in =v lim =5v xc6801a421 0 20 40 60 80 100 120 3.5 3.6 3.7 3.8 3.9 4.0 4.1 4.2 4.3 ??`?Rv bat (v) ??`i bat (ma) vin=4.5v vin=5.0v vin=5.5v vin=6.0v v lim =0v xc6801a421 0 100 200 300 400 500 600 3.5 3.6 3.7 3.8 3.9 4.0 4.1 4.2 4.3 ??`?Rv bat (v) ??`i bat (ma) vin=4.5v vin=5.0v vin=5.5v vin=6.0v v lim =v in xc6801a421 0 100 200 300 400 500 600 700 800 900 1000 0 0.3 0.6 0.9 1.2 1.5 ?rgtime (hour) ??`i bat (ma) 3.00 3.30 3.60 3.90 4.20 4.50 ??`?Rv bat (v) ??`?R ??` v in =v lim =5v, c in =1.0f 420mah battery xc6801a421 0 100 200 300 400 500 600 700 800 900 1000 0 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 ?rgtime (hour) ??`i bat (ma) 3.00 3.30 3.60 3.90 4.20 4.50 ??`?Rv bat (v) ??`?R ??` v in =v lim =5v, c in =1.0f 850mah battery (1) charge cycle (2) battery current vs. battery voltage battery voltege battery current battery voltege battery current charge time (hour) charge time (hour) battery current: i bat (ma) battery current: i bat (ma) battery voltage: v bat (v) battery current: i bat (ma) battery current: i bat (ma) battery voltage: v bat (v) battery voltage: v bat (v) battery voltage: v bat (v) battery voltage: v bat (v) battery current: i bat (ma) battery current: i bat (ma) battery voltage: v bat (v)
9/18 xc6801 series typical performacne charactoristics (continued) 3?R` 4?R - ?? xc6801a421 4.16 4.17 4.18 4.19 4.20 4.21 4.22 4.23 4.24 -50 -25 0 25 50 75 100 ???ta ?R1v float1 v v in =5v, i bat =40ma, v lim =0v xc6801a421 4.16 4.17 4.18 4.19 4.20 4.21 4.22 4.23 4.24 -50 -25 0 25 50 75 100 ???ta ?Rv float v v in =v lim =5v, i bat =200ma xc6801a421 4.00 4.05 4.10 4.15 4.20 4.25 50 60 70 80 90 100 110 ??`i bat (ma) ??`?Rv bat (v) -40 25 85 v in =5v, v lim =0v xc6801a421 4.00 4.05 4.10 4.15 4.20 4.25 250 300 350 400 450 500 550 ??`i bat (ma) ??`?Rv bat (v) -40 25 85 v in =v lim =5v xc6801a421 4.00 4.05 4.10 4.15 4.20 4.25 50 60 70 80 90 100 110 ??`i bat (ma) ??`?Rv bat (v) vin=4.5v vin=5.0v vin=5.5v vin=6.0v v lim =0v xc6801a421 4.00 4.05 4.10 4.15 4.20 4.25 250 300 350 400 450 500 550 ??`i bat (ma) ??`?Rv bat (v) vin=4.5v vin=5.0v vin=5.5v vin=6.0v v lim =v in (3) battery voltage vs. battery current battery voltage: v bat (v) battery voltage: v bat (v) battery current: i bat (ma) battery current: i bat (ma) battery current: i bat (ma) battery current: i bat (ma) battery voltage: v bat (v) battery voltage: v bat (v) (4) charge termination volta ge vs. ambient temperature ambient temperature: ta ( ? ) ambient temperature: ta ( ? ) charge termination voltage1: v float1 (v) charge termination voltage: v float1 (v)
10/18 xc6801 series typical performance charactorisitcs (continued) 5??` - ?? 6?? - ?? 7???R - ?? 8uvlo?R - ?? xc6801a421 14 13 12 11 10 9 8 7 6 -50 -25 0 25 50 75 100 ???ta ??1 i trikl1 ma v in =5v, v bat =2.5v, v lim =0v xc6801a421 70 65 60 55 50 45 40 35 30 -50 -25 0 25 50 75 100 ???ta ??2 i trikl2 ma v in =v lim =5v, v bat =2.5v xc6801a421 120 110 100 90 80 -50 -25 0 25 50 75 100 ???ta ??`1i bat1 ma v in =5v, v bat =3.8v, v lim =0v xc6801a421 540 520 500 480 460 -50 -25 0 25 50 75 100 ???ta ??`2i bat2 ma v in =v lim =5v, v bat =3.8v xc6801a421 2.65 2.70 2.75 2.80 2.85 2.90 2.95 3.00 -50 -25 0 25 50 75 100 ???ta ???Rv trikl v ???R ???R? v in =5v xc6801a421 3.35 3.45 3.55 3.65 3.75 3.85 3.95 -50 -25 0 25 50 75 100 ???ta uvlo?Rv uvlo v uvlo?R? uvlo?R (5) battery current vs. ambient temperature battery current1: i bat1 (ma) battery current2: i bat2 (ma) ambient temperature: ta ( ? ) ambient temperature: ta ( ? ) (6) trickle charge current vs. ambient temperature trickle charge current1: i trikl1 (ma) trickle charge current2: i trikl2 (ma) (7) trickle voltage vs. ambient temperature (8) uvlo voltage vs. ambient temperature ambient temperature: ta ( ? ) ambient temperature: ta ( ? ) trickle voltage: v trikl (v) uvlo voltage: v uvlo (v) trickle voltage (release) trickle voltage (detect) uvlo voltage (detect) uvlo voltage (release) ambient temperature: ta ( ? ) ambient temperature: ta ( ? )
11/18 xc6801 series typical performance charactoristics (continued) 10??rg - ?? 11??rg - ?? 12???R - ?? 13??`?rg - ?? 14on? - ?? 9vin-vbatg???R - ? xc6801a421 0.0 0.5 1.0 1.5 2.0 2.5 -50 -25 0 25 50 75 100 ???ta ??rgt term ms v in =5v xc6801a421 0.0 0.5 1.0 1.5 2.0 2.5 3.0 -50 -25 0 25 50 75 100 ???ta ??rgt rechrg ms v in =5v xc6801a421 0 40 80 120 160 200 -50 -25 0 25 50 75 100 ???ta v in -v bat g???Rv asd v vin-vbatg???R? vin-vbatg???R xc6801a421 80 100 120 140 160 180 200 220 -50 -25 0 25 50 75 100 ???ta ???Rv rechrg mv v in =5v xc6801a421 80 100 120 140 160 180 200 220 -50 -25 0 25 50 75 100 ???ta ??`?rgt ss s v in =5v xc6801a421 0.0 0.2 0.4 0.6 0.8 1.0 -50 -25 0 25 50 75 100 ???ta on?r on ? v in =4.15v, i bat =100ma (9) v in ? v bat shutdown voltage vs. ambient temperature (10) charge termination detect time vs. ambient temperature ambient temperature: ta ( ? ) ambient temperature: ta ( ? ) v in ? v bat shutdown release voltage: v asd (v) charge termination detect time: t term (ms) (11) recharge time vs. ambient temperature (12) recharge threshold voltage vs. ambient temperature ambient temperature: ta ( ? ) ambient temperature: ta ( ? ) ambient temperature: ta ( ? ) ambient temperature: ta ( ? ) (13) soft start time vs. ambient temperature (14) on resistance vs. ambient temperature recharge time: t rechrg (ms) recharge threshold voltage: v rechrg (mv) soft start time: ss ( s) on resistance: r on (
) v in -v bat shutdown voltage (detect) v in -v bat shutdown voltage (release)
12/18 xc6801 series typical performance charactoristcs (continued) 15?? - ?? 16 - ?? 17/chg weak pull down 18/chg strong pull down 19/chg?low?R - ?? xc6801a421 0 5 10 15 20 25 -50 -25 0 25 50 75 100 ???ta ??i shut a v in =5v xc6801a421 0 5 10 15 20 25 30 35 -50 -25 0 25 50 75 100 ???ta i stby a v in =5v, v bat =4.3v xc6801a421 0 5 10 15 20 25 30 35 40 45 0.0 1.0 2.0 3.0 4.0 5.0 6.0 /chg?Rv chg (v) /chg weak_pull_downi chg1 a) -40 25 85 v in =5v, v bat =4.3v xc6801a421 0 5 10 15 20 25 0123456 /chg?Rv chg (v) /chg strong_pull_downi chg2 (ma) -40 25 85 v in =5v, v bat =4.0v xc6801a421 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 -50 -25 0 25 50 75 100 ???ta /chg low?Rv /chg v i /chg =5ma, v in =5v, v bat =2.5v (15) shutdown current vs. ambient temperature (16) stand-by current vs. ambient temperature (17) /chg weak pull down cu rrent vs. /chg pin voltage ambient temperature: ta ( ? ) /chg pin voltage: v chg (v) shutdown current: i shut ( a) stand-by current: i stby ( a) /chg weak pull down current: i chg1 ( a) /chg pin voltage: v chg (v) ambient temperature: ta ( ? ) /chg pin output low voltage: v/ chg (v) /chg strong pull down current: i chg2 (ma) (18) /chg strong pull down current vs. /chg pin voltage (19) /chg pin output low vo ltage vs. ambient temperature ambient temperature: ta ( ? )
13/18 xc6801 series packaging information ? sot-25 ? usp-6c ? sot-89-5 ? usp-6c reference metal mask design ? usp-6c reference pattern layout (unit : mm) 1.80.05 0.50 (0.10) 1.40.1 0.200.05 0.300.05 0.100.05 1pin indent 0.225 0.5 0.5 0.25 1.8 0.25 0.25 1.4 1.2 0.6 0.25 0.25 0.25 0.225 0.5 0.5 (unit : mm) 1.0 1.6 +0.15 -0.2 4.50.1 2.50.1 0.8 min 4.35 max 0.420.06 0.420.06 0.470.06 8 8 (0.1) 1.50.1 1.50.1 1.50.1 5 5 0.4 +0.03 -0.02 0.4 +0.03 -0.02 123 (0.4) 0.8 min 4 5 0.420.06 0.420.06 0.420.06 2
14/18 xc6801 series ? standard or custom product, represents product series mark product series 4 xc6801******-g ? standard product, represent the 7 th digits mark product series a xc6801a*****-g custom product, the last 2 digits mark sequence no. product series 0 001 xc6801s001**-g ? standard product, represents the 8 th digits mark product series 4 xc6801*4****-g custom product, the last 1 digits mark sequence no. product series a **0 xc6801s**0**-g b **1 xc6801s**1**-g c **2 xc6801s**2**-g d **3 xc6801s**3**-g e **4 xc6801s**4**-g f **5 xc6801s**5**-g h **6 xc6801s**6**-g k **7 xc6801s**7**-g l **8 xc6801s**8**-g m **9 xc6801s**9**-g ?? represents production lot number 01 to 09, 0a to 0z, 11 to 9z , a1 to a9, aa to z9, za to zz in order. (g, i, j, o, q, w excepted) *no character inversion used. marking rule 123 54 sot25 1 2 3 6 5 4 usp6c sot89-5 524 123
15/18 xc6801 series ? ? sot-89-5 power dissipation board mount (tj max = 125 ? ) ambient temperature power dissipation pd mw thermal resistance ( /w) 25 1300 85 520 76.92 pd-ta? 0 200 400 600 800 1000 1200 1400 25 45 65 85 105 125 x?ta S?p?pdmw power dissipation data for the sot-89-5 is shown in this page. the value of power dissipation varies with the mount board conditions. please use this data as one of referenc e data taken in the described condition. 1. measurement condition (reference data) condition: mount on a board ambient: natural convection soldering: lead (pb) free board: dimensions 40 x 40 mm (1600 mm 2 in one side) copper (cu) traces occupy 50% of the board area in top and back faces package heat-sink is tied to the copper traces material: glass epoxy (fr-4) thickness: 1.6 mm through-hole: 5 x 0.8 diameter evaluation board (unit: mm) 2. power dissipation vs. operating temperature pd vs. ta ambient temperature ta ( ? ) power dissipation pd (mw) packaging information (continued)
16/18 xc6801 series ? ? sot-25 power dissipation board mount (tj max = 125 ? ) ambient temperature power dissipation pd mw thermal resistance ( /w) 25 600 85 240 166.67 pd-ta? 0 100 200 300 400 500 600 700 25 45 65 85 105 125 x?ta S?p?pdmw packaging information (continued) power dissipation data for the sot-25 is shown in this page. the value of power dissipation varies with the mount board conditions. please use this data as one of referenc e data taken in the described condition. 1. measurement condition (reference data) condition: mount on a board ambient: natural convection soldering: lead (pb) free board: dimensions 40 x 40 mm (1600 mm 2 in one side) copper (cu) traces occupy 50% of the board area in top and back faces package heat-sink is tied to the copper traces (board of sot-26 is used.) material: glass epoxy (fr-4) thickness: 1.6 mm through-hole: 4 x 0.8 diameter evaluation board (unit: mm) 2. power dissipation vs. operating temperature pd vs. ta ambient temperature ta ( ? ) power dissipation pd (mw)
17/18 xc6801 series pd vs. ta 0 200 400 600 800 1000 1200 25 45 65 85 105 125 ambient temperature ta power dissipation pdmw ? ? usp-6c power dissipation power dissipation data for the usp-6c is shown on this page. the value of power dissipation varies with the mount board conditions. please use this data as one of referenc e data taken in the described condition. 1. measurement condition (reference data) condition: mount on a board ambient: natural convection soldering: lead (pb) free board: dimensions 40 x 40 mm (1600 mm 2 in one side) copper (cu) traces occupy 50% of the board area in top and back faces package heat-sink is tied to the copper traces material: glass epoxy (fr-4) thickness: 1.6 mm through-hole: 4 x 0.8 diameter evaluation board (unit: mm) 2. power dissipation vs. operating temperature board mount (tj max = 125 ? ) ambient temperature power dissipation pd mw thermal resistance ( /w) 25 1000 85 400 100 packaging information (continued)
18/18 xc6801 series 1. the products and product specifications cont ained herein are subject to change without notice to improve performance characteristic s. consult us, or our representatives before use, to confirm that the informat ion in this datasheet is up to date. 2. we assume no responsibility for any infri ngement of patents, pat ent rights, or other rights arising from the use of any information and circuitry in this datasheet. 3. please ensure suitable shipping controls (including fail-safe designs and aging protection) are in force for equipment employing products listed in this datasheet. 4. the products in this datasheet are not devel oped, designed, or approved for use with such equipment whose failure of malfuncti on can be reasonably expected to directly endanger the life of, or cause significant injury to, the user. (e.g. atomic energy; aerospace; transpor t; combustion and associated safety equipment thereof.) 5. please use the products listed in this datasheet within the specified ranges. should you wish to use the products under conditions exceeding the specifications, please consult us or our representatives. 6. we assume no responsibility for damage or loss due to abnormal use. 7. all rights reserved. no part of this dat asheet may be copied or reproduced without the prior permission of torex semiconductor ltd.

▲Up To Search▲

Price & Availability of XC6801A421ER-G

	To Download XC6801A421ER-G Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .