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r5460x series li-ion/polymer 2-cell protector no.ea-165-091221 1 outline the r5460xxxxxx series are high voltage cmos-based protection ics for over -charge/discharge of rechargeable two-cell lithium-ion (li+) / lithium polymer , further include a short circuit protection circuit for preventing large external short circui t current and the protection circuits a gainst the excess discharge-current and excess charge current. each of these ics is composed of six voltage detecto rs, a reference unit, a delay circuit, a short circuit protector, an oscillator, a counter, and a logic circuit. wh en the over-charge voltage threshold or excess-charge current threshold crosses the each detector threshold from a low value to a high value, the output of c out pin switches to ?l? level after internal fixed delay time. to release over-charge detecto r after detecting over-charge, the detector can be reset and the output of c out becomes "h" when a kind of load is connected to v dd after a charger is disconnected from the battery pack and the cell voltage becomes lower than over-charge detector threshold. in case that a charger is continuously connec ted to the battery pack, if the cell voltage becomes lower than the over-charge detector threshold, over-charge state is also released. the output of d out pin, the output of the over-discharge detec tor and the excess discharge-current detector, switches to ?l? level after internally fixed delay time , when discharged voltage crosses the detector threshold from a high value to a value lower than v det2 . the conditions to release over-discharge voltage det ector after detecting over-discharge voltage are as follows: a/d versions: after connecting a charger, when the cell voltage becomes higher than over-discharge detector threshold or, without connecting charger, when the cell voltage becomes equal or higher than over-discharge released voltage. c version: after connecting a charger, when the ce ll voltage becomes higher than over-discharge detector threshold voltage. e version: whether connecting a charger, or not, when the cell voltage becomes higher than released voltage from over-discharge. f version: after connecting a charger, when the cell voltage becomes higher than released voltage from over-discharge. in case that connecting a charger, for a/c/d versions, there is no hysteresis for over-discharge detector. for e/f versions, even if a charger is connected to the batte ry pack, the hysteresis of over-discharge detector exists. to satisfy the release conditions for over-dis charge voltage protector, the output voltage of d out becomes "h". even if a battery is discharged to 0v, charge current is acceptable. after detecting excess-discharge current or short current, when the load is disconnected, the excess discharged or short condition is released and d out becomes ?h?. after detecting over-discharge voltage, supply current will be kept extremel y low by halting internal circuits' operation. when the output of c out is ?h?, if v- pin level is set at -1.6v, the delay time of detector can be shortened. especially, the delay time of the over-charge detector can be reduced into approximately 1/60 and test time for protection circuit pcb can be reduced. the output type of c out and d out is cmos.
r5460x 2 features manufactured with high voltage tolerant process ................ absolute ma ximum rating 30v low supply current ........................................supply current (at normal mode) typ. 4.0 ? standby current typ. 1.2 ?( a/ d/ e version ) max. 0.1 ?( c/ f version ) high accuracy detector thresh old .......................................... over-cha rge detector (topt=25c) 25mv (topt=-5 to 55c) 30mv over-discharge detector 2.5% excess discharge-current detector 15mv excess charge-current detector 40mv variety of detector threshold over-charge detector threshold ( a/ c/ e/ f version ) 4.1v-4.5v step of 0.005v(vd1u / vd1l) over-discharge detector threshold ( d version ) 3.5v-4.0v step of 0.005v(vd1u / vd1l) over-discharge detector threshold 2.0v-3.0v step of 0.005v(vd2u / vd2l) excess charge-current threshold 0.05v-0.20v step of 0.005v 3 options of excess charge-cu rrent threshold (1) -0.4v40mv ....................................................................... (2) -0 .2v30mv ....................................................................... (3) -0 .1v30mv over-charge released voltage 0.1v-0.4v step of 0.05v(vh1u / vh1l) over-discharge released voltage 0.2v-0.7v step of 0.1v(vh2u / vh2l) short detector threshold fixed at 0.8v internal fixed output delay time ............. over-charge detector output delay 1.0s over-discharge detector output delay 128ms excess charge-current det ector output delay 8ms short circuit detector output delay 300s output delay time shortening function ...............at cout is ?h ?, if v- level is set at ?1.6v, the output delay time of detect and release the over-charge and over-discharge can be reduced. (delay time for over-charge become s about 1/60 of normal state.) 0v-battery char ge ................................................................... acc eptable ultra small pack age ............................................................... sot-23-6,d fn(plp)1820-6 applications li+ / li polymer protector of over-charge, over-disc harge, excess-current for battery pack high precision protectors for cell-phones and any other gadgets using on board li+ / li polymer battery
r5460x 3 block diagrams a/ d/ e/ f version c version vd1u vd3 counter d out c out v- v ss ds circuit scillator short detector logic circuit level shift logic circuit delay vd2l v c vd2u vd1l vd4 v dd vd1u vd3 counter d out c out v- v ss ds circuit scillator short detector logic circuit level shift logic circuit delay vd2l v c vd2u vd1l vd4 v dd
r5460x 4 selection guide in the r5460xxxxxx series, input threshold of over-cha rge, over-discharge, exce ss discharge current, and the package and taping can be designated. part number is designated as follows: r5460x xxx xx -xx part number a b c d e code contents a package type n: sot-23-6 k:dfn(plp)1820-6 b serial number for the r5402 series designating input threshold for over-charge, over-discharge, excess di scharge-current detectors. c designation of output delay option of over-charge and excess discharge-current. d designation of version symbols e taping type: tr (refer to taping specification) pin configurations sot-23-6 dfn(plp)1820-6 5 4 1 2 3 mark side mark side 1 2 3 6 5 4 6
r5460x 5 pin descriptions pin no. sot23-6 plp1820-6 symbol description 1 3 d out output pin of over-discharge detection, cmos output 2 1 c out output pin of over-charge detection, cmos output 3 2 v- pin for charger negative input 4 6 v c input pin of the center voltage between two-cell 5 5 v dd power supply pin, the substrate voltage level of the ic. 6 4 v ss vss pin. ground pin for the ic the backside tab of dfn(plp)1820-6 package is connected to the substrate level. (v dd ) note that avoiding short with other level. absolute maximum ratings symbol item ratings unit v dd supply voltage -0.3 to 12 v vc v- input voltage center pin voltage between two-cell charger negative input v- pin v ss -0.3 to v dd +0.3 v dd -30 to v dd +0.3 v vc out vd out output voltage c out pin d out pin v dd -30 to v dd + 0.3 v ss -0.3 to v dd + 0.3 v v p d power dissipation 150 mw topt operating temperature range -40 to 85 c ts t g storage temperature range -55 to 125 c *note: exposure to the condition exceeded absolute maximum ratings may cause the permanent damages and affects the reliability and safety of both device and systems using the device. the functional operations cannot be guaranteed beyond specified values in the recommended conditions.
r5460x 6 electrical characteristics r5460x2xxaa/ad/ae version unless otherwise specified, topt=25c symbol item conditions min. typ. max. unit note1 v dd1 operating input voltage voltage defined as v dd -vss 1.5 10.0 v a vst minimum operating voltage for 0v charging *note 1 voltage defined as v dd -v- v dd -vss=0v 1.8 v a v det1u cell1 over-charge threshold detect rising edge of supply voltage r1=330 r1=330 (topt=-5 to 55c) *note3 v det1u -0.025 v det1u -0.030 v det1u v det1u v det1u +0.025 v det1u +0.030 v v b b v rel1u cell1 over-charge released voltage r1=330 v rel1u - 0.050 v rel1u v rel1u + 0.050 v b tv det1 output delay of over-charge v dd =3.2v to 4.5v, vc-vss=3.2v 0.7 1.0 1.3 s b tv rel1 output delay of release from over-charge v dd =4.5v to 3.2v, vc-vss=3.2v 11 16 21 ms b v det1l cell2 over-charge detector threshold detect rising edge of supply voltage r2=330 r2=330 (topt=-5 to 55c) *note3 v det1l - 0.025 v det1l -0.030 v det1l v det1l v det1l +0.025 v det1l +0.030 v v c c v rel1l cell2 over-charge released voltage r2=330 v rel1l -0.05 v rel1l v rel1l +0.05 v c v det2u cell1 over-discharge threshold detect falling edge of supply voltage v det2u 0.975 v det2u v det2u 1.025 v d v rel2u cell1 released voltage from over-discharge detect rising edge of supply voltage v rel2u 0.975 v rel2u v rel2u 1.025 v d tv det2 output delay of over-discharge v dd =3.2v to 1.9v, vc-vss=3.2v 89 128 167 ms d tv rel2 output delay of release from over-discharge v dd =1.9v to 3.2v, vc-vss=3.2v 0.7 1.2 1.7 ms d v det2l cell2 over-discharge threshold detect falling edge of supply voltage v det2l 0.975 v det2l v det2l 1.025 v e v rel2l cell2 released voltage from over-discharge detect rising edge of supply voltage v rel2l 0.975 v rel2l v rel2l 1.025 v e v det3 excess discharge-current threshold detect rising edge of 'v-' pin voltage v det3 -0.015 v det3 v det3 +0.015 v f tv det3 output delay of excess discharge current v dd -vc=vc-vss=3.2v, v-=0v to 0.5v 8 12 16 ms f tv rel3 output delay of release from excess discharge-current v dd -vc=vc-vss=3.2v, v-=3v to 0v 0.7 1.2 1.7 ms f -0.44 -0.40 -0.36 -0.23 -0.20 -0.17 v det4 excess charge-current threshold detect falling edge of 'v-' pin voltage -0.13 -0.10 -0.07 v g tv det4 output delay of excess charge-current v dd -vc=vc-vss=3.2v, v-=0v to -1v 5 8 11 ms g tv rel4 output delay of release from excess charge-current v dd -vc=vc-vss=3.2v, v-=-1v to 0v 0.7 1.2 1.7 ms g vshort short protection voltage v dd -vc=vc-vss=3.2v 0.7 1.1 1.5 v f tshort output delay of short protection v dd -vc=vc-vss=3.2v, v-=0v to 6.4v 150 300 500 s f rshort reset resistance for excess discharge-current protection v dd -vc=vc-vss=3.2v, v-=1v 25 40 75 k f v ds delay shortening mode input voltage v dd -vc=vc-vss=4.0v -2.2 -1.6 -1.0 v g v ol1 nch on voltage of c out iol=50a v dd -vc=vc-vss=4.5v 0.4 0.5 v h v oh1 pch on voltage of c out ioh=-50a v dd -vc=vc-vss=3.2v 6.8 7.4 v i v ol2 nch on voltage of d out iol=50a v dd -vc=vc-vss=1.9v 0.2 0.5 v j v oh2 pch on voltage of d out ioh=-50a, v dd -vc=vc-vss=3.2v 6.8 7.4 v k i dd supply current v dd -vc=vc-vss=3.2v, v-=0v 4.0 8.0 a l i s standby current v dd -vc=vc-vss=1.9v 1.2 2.0 a l *note: we compensate for this charac teristic related to temperature by la ser-trim, however, this specification is guaranteed by design, not production tested. *note2: indicates test circuits shown in 19-20 page.
r5460x 7 r5460x2xxac version unless otherwise specified, topt=25c symbol item conditions min. typ. max. unit note1 v dd1 operating input voltage voltage defined as v dd -vss 1.5 10.0 v a vst minimum operating voltage for 0v charging *note 1 voltage defined as v dd -v- v dd -vss=0v 1.8 v a v det1u cell1 over-charge threshold detect rising edge of supply voltage r1=330 r1=330 (topt=-5 to 55c) *note3 v det1u -0.025 v det1u -0.030 v det1u v det1u v det1u +0.025 v det1u +0.030 v v b b v rel1u cell1 over-charge released voltage r1=330 v rel1u - 0.050 v rel1u v rel1u + 0.050 v b tv det1 output delay of over-charge v dd =3.2v to 4.5v, vc-vss=3.2v 0.7 1.0 1.3 s b tv rel1 output delay of release from over-charge v dd =4.5v to 3.2v, vc-vss=3.2v 11 16 21 ms b v det1l cell2 over-charge detector threshold detect rising edge of supply voltage r2=330 r2=330 (topt=-5 to 55c) *note3 v det1l - 0.025 v det1l -0.030 v det1l v det1l v det1l +0.025 v det1l +0.030 v v c c v rel1l cell2 over-charge released voltage r2=330 v rel1l -0.05 v rel1l v rel1l +0.05 v c v det2u cell1 over-discharge threshold detect falling edge of supply voltage v det2u 0.975 v det2u v det2u 1.025 v d tv det2 output delay of over-discharge v dd =3.2v to 1.9v, vc-vss=3.2v 89 128 167 ms d tv rel2 output delay of release from over-discharge v dd =1.9v to 3.2v, vc-vss=3.2v 0.7 1.2 1.7 ms d v det2l cell2 over-discharge threshold detect falling edge of supply voltage v det2l 0.975 v det2l v det2l 1.025 v e v det3 excess discharge-current threshold detect rising edge of 'v-' pin voltage v det3 -0.015 v det3 v det3 +0.015 v f tv det3 output delay of excess discharge current v dd -vc=vc-vss=3.2v, v-=0v to 0.5v 8 12 16 ms f tv rel3 output delay of release from excess discharge-current v dd -vc=vc-vss=3.2v, v-=3v to 0v 0.7 1.2 1.7 ms f -0.44 -0.40 -0.36 -0.23 -0.20 -0.17 v det4 excess charge-current threshold detect falling edge of 'v-' pin voltage -0.13 -0.10 -0.07 v g tv det4 output delay of excess charge-current v dd -vc=vc-vss=3.2v, v-=0v to -1v 5 8 11 ms g tv rel4 output delay of release from excess charge-current v dd -vc=vc-vss=3.2v, v-=-1v to 0v 0.7 1.2 1.7 ms g vshort short protection voltage v dd -vc=vc-vss=3.2v 0.7 1.1 1.5 v f tshort output delay of short protection v dd -vc=vc-vss=3.2v, v-=0v to 6.4v 150 300 500 s f rshort reset resistance for excess discharge-current protection v dd -vc=vc-vss=3.2v, v-=1v 25 40 75 k f v ds delay shortening mode input voltage v dd -vc=vc-vss=4.0v -2.2 -1.6 -1.0 v g v ol1 nch on voltage of c out iol=50a v dd -vc=vc-vss=4.5v 0.4 0.5 v h v oh1 pch on voltage of c out ioh=-50a v dd -vc=vc-vss=3.2v 6.8 7.4 v i v ol2 nch on voltage of d out iol=50a v dd -vc=vc-vss=1.9v 0.2 0.5 v j v oh2 pch on voltage of d out ioh=-50a, v dd -vc=vc-vss=3.2v 6.8 7.4 v k i dd supply current v dd -vc=vc-vss=3.2v, v-=0v 4.0 8.0 a l i s standby current v dd -vc=vc-vss=1.9v 0.1 a l *note: we compensate for this charac teristic related to temperature by la ser-trim, however, this specification is guaranteed by design, not production tested. *note2: indicates test circuits shown in 19-20 page.
r5460x 8 r5460x2xxaf version unless otherwise specified, topt=25c symbol item conditions min. typ. max. unit note1 v dd1 operating input voltage voltage defined as v dd -vss 1.5 10.0 v a vst minimum operating voltage for 0v charging *note 1 voltage defined as v dd -v- v dd -vss=0v 1.8 v a v det1u cell1 over-charge threshold detect rising edge of supply voltage r1=330 r1=330 (topt=-5 to 55c) *note3 v det1u -0.025 v det1u -0.030 v det1u v det1u v det1u +0.025 v det1u +0.030 v v b b v rel1u cell1 over-charge released voltage r1=330 v rel1u - 0.050 v rel1u v rel1u + 0.050 v b tv det1 output delay of over-charge v dd =3.2v to 4.5v, vc-vss=3.2v 0.7 1.0 1.3 s b tv rel1 output delay of release from over-charge v dd =4.5v to 3.2v, vc-vss=3.2v 11 16 21 ms b v det1l cell2 over-charge detector threshold detect rising edge of supply voltage r2=330 r2=330 (topt=-5 to 55c) *note3 v det1l - 0.025 v det1l -0.030 v det1l v det1l v det1l +0.025 v det1l +0.030 v v c c v rel1l cell2 over-charge released voltage r2=330 v rel1l -0.05 v rel1l v rel1l +0.05 v c v det2u cell1 over-discharge threshold detect falling edge of supply voltage v det2u 0.975 v det2u v det2u 1.025 v d v rel2u cell1 released voltage from over-discharge detect rising edge of supply voltage v rel2u 0.975 v rel2u v rel2u 1.025 v d tv det2 output delay of over-discharge v dd =3.2v to 1.9v, vc-vss=3.2v 89 128 167 ms d tv rel2 output delay of release from over-discharge v dd =1.9v to 3.2v, vc-vss=3.2v 0.7 1.2 1.7 ms d v det2l cell2 over-discharge threshold detect falling edge of supply voltage v det2l 0.975 v det2l v det2l 1.025 v e v rel2l cell2 released voltage from over-discharge detect rising edge of supply voltage v rel2l 0.975 v rel2l v rel2l 1.025 v e v det3 excess discharge-current threshold detect rising edge of 'v-' pin voltage v det3 -0.015 v det3 v det3 +0.015 v f tv det3 output delay of excess discharge current v dd -vc=vc-vss=3.2v, v-=0v to 0.5v 8 12 16 ms f tv rel3 output delay of release from excess discharge-current v dd -vc=vc-vss=3.2v, v-=3v to 0v 0.7 1.2 1.7 ms f -0.44 -0.40 -0.36 -0.23 -0.20 -0.17 v det4 excess charge-current threshold detect falling edge of 'v-' pin voltage -0.13 -0.10 -0.07 v g tv det4 output delay of excess charge-current v dd -vc=vc-vss=3.2v, v-=0v to -1v 5 8 11 ms g tv rel4 output delay of release from excess charge-current v dd -vc=vc-vss=3.2v, v-=-1v to 0v 0.7 1.2 1.7 ms g vshort short protection voltage v dd -vc=vc-vss=3.2v 0.7 1.1 1.5 v f tshort output delay of short protection v dd -vc=vc-vss=3.2v, v-=0v to 6.4v 150 300 500 s f rshort reset resistance for excess discharge-current protection v dd -vc=vc-vss=3.2v, v-=1v 25 40 75 k f v ds delay shortening mode input voltage v dd -vc=vc-vss=4.0v -2.2 -1.6 -1.0 v g v ol1 nch on voltage of c out iol=50a v dd -vc=vc-vss=4.5v 0.4 0.5 v h v oh1 pch on voltage of c out ioh=-50a v dd -vc=vc-vss=3.2v 6.8 7.4 v i v ol2 nch on voltage of d out iol=50a v dd -vc=vc-vss=1.9v 0.2 0.5 v j v oh2 pch on voltage of d out ioh=-50a, v dd -vc=vc-vss=3.2v 6.8 7.4 v k i dd supply current v dd -vc=vc-vss=3.2v, v-=0v 4.0 8.0 a l i s standby current v dd -vc=vc-vss=1.9v 0.1 a l *note: we compensate for this charac teristic related to temperature by la ser-trim, however, this specification is guaranteed by design, not production tested. *note2: indicates test circuits shown in 19-20 page.
r5460x 9 operation vdet1u,vdet1l / over-charge detectors the vdet1u and vdet1l monitor the voltage between v dd pin and v c pin (the voltage of cell1) and the voltage between v c pin and v ss pin (the voltage of cell2), if either voltage becomes equal or more than the over-charge detector threshold, the over-charge is detected, and an external charge control nch mosfet turns off with c out pin being at "l" level. vdet1u is the detector of cell1, and the vdet1l is the detector of cell2. to reset the over-charge and make the c out pin level to "h" again after detecting over-charge, in such conditions that a time when the both cell1 and cell2 ar e down to a level lower than over-charge voltage, by connecting a kind of load to v dd after disconnecting a charger from the battery pack. then, the output voltage of c out pin becomes "h", and it makes an external nch mo sfet turn on, and charge cycle is available. in other words, once over-charge is de tected, even if the supply voltage becomes low enough, if a charger is continuously connected to the battery pack, recharge is not possible. therefore this over-charge detector has no hysteresis. to judge whether or not load is connect ed, the built-in excess-discharge current detector is used. by connecting some load, v- pin voltage becom es equal or more than excess-discharge current detector threshold, and reset the over-charge detecting state. further, either or both voltage of cell1 and cell2 is higher than the over-charge detector threshold, if a charger is removed and some load is connected, c out outputs ?l?, however, load current can flow through the parasitic diode of the external charge control nch mosfet. after that, when the v dd pin voltage becomes lower than the over-charge detector threshold, c out becomes ?h?. internal fixed output delay times for over-charge detec tion and release from over-charge exist. if either or both of the voltage of cell1 or cell2 keeps its level more than the over-charge detector threshold, and output delay time passes, over-charge voltag e is detected. even when the voltage of cell1 or cell2 pin level becomes equal or higher level than v det1 if these voltages would be back to a level lower than the over-charge detector threshold within a time period of the output delay time, the over-charge is not detected. besides, after detecting over-charge, while the both of cell1 and ce ll2 voltages are lower than the over-charge detector threshold, even if a charger is removed and a load is conn ected, if the voltage is recovered within output delay time of release from over-charge, over-charge state is not released. a level shifter incorporated in a buffer driver for the c out pin makes the "l" level of c out pin to the v - pin voltage and the "h" level of c out pin is set to v dd voltage with cmos buffer. vdet2u,vdet2l / over-discharge detectors the vdet2u and vdet2l monitor the voltage between v dd pin and v c pin (cell1 voltage) and the voltage between v c pin and v ss pin (cell2 voltage). when either of the ce ll1 or cell2 voltage becomes equal or less than the over-discharge detector th reshold, the over-discharge is detected and discharge stops by the external discharge control nch mosfet turning off with the d out pin being at "l" level. the conditions to release over-discharge voltage detector after detecting over-discharge voltage are as follows: a/d versions: after connecting a charger, when the cell voltage becomes higher than over-discharge detector threshold or, without connecting charger, when the cell voltage becomes equal or higher than over-discharge released voltage. c version: after connecting a charger, when the cell voltage becomes higher than over-discharge detector threshold voltage. e version: whether connecting a charger, or not, when the cell voltage becomes higher than released voltage from over-discharge. f version: after connecting a charger, when the cell voltage becomes higher than released voltage from over-discharge. in case that connecting a charger, for a/c/d versions , there is no hysteresis for over-discharge detector. for e/f versions, even if a charger is connected to the battery pack, the hyster esis of over-discharge
r5460x 10 detector exists. when a cell voltage equals to zero, if the voltage of a charger is equal or more than 0v-charge minimum voltage (vst), c out pin becomes "h" and a system is allowable to charge. the output delay time for over-discharge detect is fix ed internally. even if the voltage of cell1 or cell2 is down to equal or lower than the over-d ischarge detector threshold, if the voltage of cell1 or cell2 would be back to a level higher than the over-discharge detector th reshold within a time period of the output delay time, the over-discharge is not detected. output delay ti me for release from over-discharge is also set. after detecting over-discharge, supply current would be reduced and be into standby by halting unnecessary circuits and consumption current of the ic itself is made as small as possible. c version: after detecting over-discharge, all the circuits are halted and the r5460 will be into standby mode. others: after detecting over-dischar ge, whole circuits except over-dis charge released detector function are halted, and the r5460 will be into standby mode. the output type of d out pin is cmos having "h" level of v dd and "l" level of v ss . vdet3 /excess discharge-current detect or, short circuit protector both of the excess current detector and short circuit prot ection can work when the both of control fets are in "on" state. when the v- pin voltage is up to a value between the short protection voltage vshort /v dd and excess discharge-current threshold v det3 , vdet3 operates and further soaring of v- pin voltage higher than vshort makes the short circuit protector enabled. this leads the external discharge control nch mosfet turns off with the d out pin being at "l" level. an output delay time for the excess discharge -current detector is internally fixed. a quick recovery of v- pin level from a value between vshort and v det3 within the delay time keeps the discharge control fet staying "h" st ate. output delay time for release from excess discharge-current detection is also set. when the short circuit protector is enabled, the d out would be "l" and the delay time is also set. the v - pin has a built-in pull-down resistor to the vss pin, that is, the resistance to release from excess-discharge current. after an excess discharge-current or short circuit protection is detected, removing a cause of excess discharge-current or external short circuit makes an external discharge control fet to an "on" state automatically with the v- pin level being down to the v ss level through the built-in pulled down resistor. the reset resistor of excess discharge-current is off at normal state. only when detec ting excess discharge-current or short circuit, the resistor is on. output delay time of excess discharge-current is set shorter than the delay time for over-discharge detector. therefore, if v dd voltage would be lower than v det2 at the same time as the excess discharge-current is detected, the r5460xxxxxx is at exce ss discharge-current detection mode. by disconnecting a load, vdet3 is automatically released from excess discharge-current. vdet4/ excess charge-current detector when the battery pack is chargeable and discharge is also possible, vdet4 senses v- pin voltage. for example, in case that a battery pack is charged by an inappropriate charger, an excess current flows, then the voltage of v- pin becomes equal or less than excess ch arge-current detector thres hold. then, the output of c out becomes "l", and prevents from flowing excess curren t in the circuit by turning off the external nch mosfet. output delay of excess charge current is internally fi xed. even the voltage level of v- pin becomes equal or lower than the excess charge-current detector threshol d, the voltage is higher than the vdet4 threshold within the delay time, the excess char ge current is not detected. output delay for the release from excess charge current is also set. vdet4 can be released with disconnecting a charger and connecting a load.
r5460x 11 ds (delay shorten) function output delay time of over-charge, over-discharge, and release from t hose detecting modes can be shorter than those setting value by forcing equal or less than the delay shortening mode voltage to v- pin when the c out is ?h?. operation against 2-cell unbalance a/d/e version: if one of the cells det ects over-charge and the output of c out becomes "l" and keeps the status, even if the other cell detects over-charg e or over-discharge or short, the ove r-charge status is maintained and the output of c out keeps "l". if one of the cell detects over-charge and the output of c out becomes "l", the other cell detects over-discharge and the former cell is released from over-charge, after the delay time of the released from over-charge, the output of c out becomes "h", and after the delay ti me of detecting over-discharge, the output of d out becomes "l". after detecting over-discharge, a ve rsion halts internal unnecessary circuits and be into the standby mode. (supply current max. 2.0 a) c/f version: if one of the cells detect over-charge, and when the cout becomes "l", even if the other cell would detect over-discharge or short, the over-charge detector w ill be dominant and cout keeps the "l" level. if one of the cell detects the over-dischar ge, and when the dout becomes "l", in case that a charger is connected to the battery pack and the other cell detects over-charge, t he internal counter will start and after the delay time of over-discharge detector, dout will be come "h". after the delay time of over-charge releas e from when the internal counter starts, cout will be "l". if the over-disc harge is detected, internal unnecessary circuits will be cut off and the standby mode will be realized. (standby current max. 0.1 a) in any versions, the external fets do not turn off at the same time.
r5460x 12 v det1 v rel1 c out v dd v- v- v dd v det3 v ss v det4 connect charger t v det1 t v det1 connect load charger open and connec t load t v rel4 t t charge/ discharge current charge current 0 t t v dd v c - v c v ss - t v det1 v rel1 excess charge current t v 4 t v rel1 t v rel1 timing chart 1) timing diagram of over-charge,excess charge current aa/ac/ad version
r5460x 13 ae/af version rel1 u c v det1u c out v v- v- dd det 3 v ss det 4 connect charger connect loa d disconnect charger + connect load t t c harge / discharge current charge current 0 t t v dd v - v c v ss - t v det 1l v rel1l e xcess charge current t v det 1 t rel1 t v rel1 t v det4 t v rel4 v v dd v v v det 1 v t
r5460x 14 v det2u d out v dd vss v- v dd v det3 v ss v det4 connect charger open t t ch arge /di sc h ar ge current charge current 0 t t v dd v c - v c v ss t connect load v det2l v shor t e xcess discharge current v rel2u v rel2l t v det2 t v rel2 open short tshor t - t v det2 t v rel2 t v det3 t v rel3 t v rel3 2) over-discharge, excess discharge current, short circuit aa/ad version
r5460x 15 ac version v det2u d out v dd v dd v det3 ss det4 t c harge discharge current ch arge current 0 t dd v c - v ss v det 2l short connect load det2 c onnec t charger t rel2 c onnect load t det2 connect charger ov er - discharge current t det3 open short t rel3 t rel2 tshort open t rel3 v c - v v v v v v ss t v v v v v v v - t t t
r5460x 16 ae version v det2u d out v dd vss v- v dd v det3 v ss v det4 connect charger open t t charge /dis charge current 0 t t v dd v c - v c v ss - t connect load v det2l v short ov er discharge v rel2u v rel2l t v det2 t v rel2 t v det2 t v rel2 t v det3 t v rel3 open short tshort t v rel3 current ch arge current
r5460x 17 3) operation with unbalanced cells ac version vdd t vdd - vc t vdet2l vrel1l vdet1l cout vdd v- vdet3 vss vdet4 t t t tvdet2 tvrel2 tvdet1 tvrel1 dout vdd vss tvdet2 tvrel2 vc - vss connect load connect charger connect load connect charger open vss
r5460x 18 typical application and technical notes v dd :-:? :? :|:?:? d out :-:: :?: :?:?:?:?:? r1 330 :?:?:w r3 :-:o :?:?:w:?:?:? r5460x 19 test circuits a oscilloscope v v- v dd d out c out v ss v b v c c out v v ss v dd v- c v c c out v v ss v dd v- d v c d out v v ss v dd v- f v c d out v ss v dd v- v a e v c d out v v ss v dd v- h v c c out v ss v dd v- v a g v c c out v ss v dd v- v
r5460x 20 i v c c out v ss v dd v- v a j v c d out v ss v dd v- v a k v c d out v ss v dd v- v a l v c a v ss v dd v-
r5460x 21 typical characteristics (part 1) r5460x201ac r5460x201ac 3) over-charge voltage threshold (cell2) vs. temperat ure 4)release voltage from over-charge (cell1) vs. temperature r5460x201ac r5460x201ac 1) minimum operating voltage for 0v cell charging 2) over-charge voltage threshold (cell1) vs. temperature vdd=vss=0v 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 -50 -25 0 25 50 75 100 temperature topt ( c) vst(v) vc-vss=3.5v 4.325 4.330 4.335 4.340 4.345 4.350 4.355 4.360 4.365 4.370 4.375 -60 -40 -20 0 20 40 60 80 100 temperature topt( c) over-charge voltage threshold cell1 v det1u( v) vdd-vc=3.5v 4.28 4.29 4.30 4.31 4.32 4.33 4.34 4.35 4.36 4.37 4.38 4.39 4.40 -50 -25 0 25 50 75 100 temperature topt( c) vdet1l v vc-vss=3.5v 4.00 4.05 4.10 4.15 4.20 4.25 4.30 -60 -40 -20 0 20 40 60 80 100 tempperature topt c release voltage from over-charge voltage detect cell1 vrel1u v
r5460x 22 5) release voltage from over-charge (cell2) vs. 6) ou tput delay of over-charge detector vs. temperature temperature r5460x201ac r5460x201ac 7) output delay of release from over-charge vs. temperature 8) over-discharge detector threshold (cell1) vs. temperature r5460x201ac r5460x201ac 9) over-discharge detector threshold (cell2) vs. 10) release voltage from over-discharge (cell1) vs. temperature temperature r5460x201ac r5460x202aa vdd-vc=3.5v 4.00 4.05 4.10 4.15 4.20 4.25 4.30 -60 -40 -20 0 20 40 60 80 100 temperature topt( c) release voltage from over- charge cell2 v rel1l( v) vc-vss=3.5v 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 -60 -40 -20 0 20 40 60 80 100 temperature topt( c) over-charge detector output delay time tv det1 (s) vc-vss=3.5v 4 8 12 16 20 24 28 32 -60 -40 -20 0 20 40 60 80 100 temperature topt( c) output delay time of release from over-charge tv rel1 (ms) vc-vss=3.5v 2.20 2.23 2.25 2.28 2.30 2.33 2.35 2.38 2.40 -60 -40 -20 0 20 40 60 80 100 temperature topt( c) over-discharge detector threshold cell1 v det2u (v) vdd-vc=3.5v 2.23 2.25 2.27 2.29 2.31 2.33 2.35 2.37 -50 -25 0 25 50 75 100 temperature topt( c) vdet2l v vc-vss=3.5v 2.80 2.85 2.90 2.95 3.00 3.05 3.10 3.15 3.20 -60 -40 -20 0 20 40 60 80 100 temperature topt( c) releasevoltage from over- discharge cell1 v rel2
r5460x 23 11) release voltage from over-discharge (cell2 ) vs. 12) output delay time for over-discharge vs. temperature temperature r5460x202aa r5460x201ac 13) output delay of release from over-discharge vs. temperature 14) excess discharge current detector threshold vs. temperature r5460x201ac r5460x201ac 15) output delay time for excess discharge-current detector vs. 16) output delay for release from excess discharge-current vs. temperature temperature r5460x201ac r5460x201ac vdd-vc=3.5v 2.80 2.85 2.90 2.95 3.00 3.05 3.10 3.15 3.20 -60 -40 -20 0 20 40 60 80 100 temperature topt( c) release from over-discharge cell2 (v) vc-vss=3.5v 0 25 50 75 100 125 150 175 200 225 250 -60 -40 -20 0 20 40 60 80 100 temperature topt(c) output delay time of over- discharge tv det2( ms) vc-vss=3.5v 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 -60 -40 -20 0 20 40 60 80 100 temperature topt( c) output delay time for release from over-discharge tv rel2 (ms) 0.180 0.185 0.190 0.195 0.200 0.205 0.210 0.215 0.220 -60 -40 -20 0 20 40 60 80 100 temperature topt(c) excess discharge current detector threshold v det3 v 0 3 5 8 10 13 15 18 20 -60 -40 -20 0 20 40 60 80 100 temperature topt( c) output delay time for excess discharge-current detector tv det3 ms 0.0 0.4 0.8 1.2 1.6 2.0 2.4 2.8 -50 -25 0 25 50 75 100 temperature topt ( c) output delay for release from excess discharge-current tv rel3 ( ms)
r5460x 24 17) short detector voltage threshold vs. temperature 18) output delay for short detector vs. temperature r5460x201ac r5460x201ac 19) release resistance from excess-discharge current vs. 20) excess-charge current detector threshold vs. temperature temperature r5460x201ac r5460x201ac 21) output delay time of excess-charge current detector threshol d 22) output delay time for release from excess-charge current vs. vs. temperature temperature r5460x201ac r5460x201ac vdd-vc=vc-vss=3.5v 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 -50 -25 0 25 50 75 100 temperature topt ( c) short detector threshold vshort(v) 0 50 100 150 200 250 300 350 400 450 500 550 600 -60 -40 -20 0 20 40 60 80 100 temperature topt( c) output delay time for short detector t short( s) vdd-vc=vc-vss=3.6v 15 20 25 30 35 40 45 50 55 60 65 70 75 80 -50 -25 0 25 50 75 100 temperature topt( c) release resistance from excess- discharge current rshort(k ? ) -0.50 -0.48 -0.46 -0.44 -0.42 -0.40 -0.38 -0.36 -0.34 -0.32 -0.30 -60 -40 -20 0 20 40 60 80 100 temperature topt( c) excess charge current detector threshold v det4 (v) 0 2 4 6 8 10 12 14 16 18 20 -50 -25 0 25 50 75 100 temperature topt( c) output delay for detecting excess charge current tv det4( ms) 0.0 0.4 0.8 1.2 1.6 2.0 2.4 2.8 -50 -25 0 25 50 75 100 temperature topt ( c) output delay for release from excess charge current detect tv rel4 (ms)
r5460x 25 23) delay shortening mode voltage vs. temperature 24) nch on voltage of c out vs. temperature r5460x201ac r5460x201ac 25) pch on voltage of c out vs. temperature 26) nch on voltage of d out vs. temperature r5460x201ac r5460x201ac 27) pch on voltage of d out vs. temperature 28) supply current vs. temperature r5460x201ac r5460x201ac -2.8 -2.6 -2.4 -2.2 -2.0 -1.8 -1.6 -1.4 -1.2 -1.0 -0.8 -0.6 -0.4 -50 -25 0 25 50 75 100 temperature topt( c) delay shrtening mode threshol d v ds ( v) v dd -v c =v c -v ss =4.5v, i ol =50 a 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 -50 -25 0 25 50 75 100 temperature topt ( c) nch on voltage(c out ) v ol1( v) vdd-vc=vc-vss=3.9v, ioh=-50 a 6.3 6.5 6.7 6.9 7.1 7.3 7.5 7.7 7.9 -50 -25 0 25 50 75 100 temperature topt ( c) pch on voltage of c out voh1 v vdd-vc=vc-vss=2v, iol=50 a 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 -50 -25 0 25 50 75 100 temperqture topt ( c) nch on voltage of d out vol2(v) v dd -v c =v c -v ss =3.9v dout ? v ss =-50 a min=6.8 , typ.=7.4v 6.3 6.5 6.7 6.9 7.1 7.3 7.5 7.7 7.9 8.1 8.3 -50 -25 0 25 50 75 100 temperature ( c) pch on voltage of d out voh2 ( v ) v dd -v cc =v c -v ss =3.9v 0 1 2 3 4 5 6 7 8 9 10 -50 -25 0 25 50 75 100 temperature topt( c) iss a
r5460x 26 29) standby current vs. temperature (ver. a.) 30) standby current vs. temperature (ver. c.) part 2 delay time dependence on v dd 1) delay time for over-charge detector vs. v dd 2) delay time for release from over-charge vs. v dd 3) output delay of over-discharge detector vs. v dd 4) output delay for release from over-discharge vs. v dd r5460x201ac (v dd -v c =v c -v ss =2.0v) 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 temperature topt ( c) standby current istb( a) r5460x202aa (vdd-vc=vc-vss=2.0v) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 -50 -25 0 25 50 75 100 temperature topt(c) standby current istb(ua) 0 0.2 0.4 0.6 0.8 1 1.2 4 4.5 5 5.5 6 v dd [v] output delay of over-charge tv det1 [s] v-=0v,vdd=3.5v to 4.4v, 5.0v, 5.6v vc-vss =3.5v r5460x2xxax r5460x2xxax 0 2 4 6 8 10 12 14 16 18 33.544.5 v dd [v] output delay of release from over-charge tv rel1 [ms] v-=0v,vdd=4.5v to 3.2v,3.7v,4.0v,vc-vss=3.5v r5460x2xxax 0 20 40 60 80 100 120 140 11.522.5 v dd [v] output delay of over- discharge tv det2 [ms] v-=0v,vdd=3.5v to 2.2v,2.0v,1.5v,vc-vss=3.5v r5460x2xxax 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 2 2.5 3 3.5 4 4.5 v dd [v] output delay of release from over-discharge tv rel2 [ ms] v-=0v,v dd =2.2v to 2.5v,3.3v,4.2v vc-vss=3.5v
r5460x 27 5) output delay for excess discharge current 6) output delay for release from excess discharge vs. v dd current detect vs. v dd 7) delay time for excess charge current detector 8) delay time for release from excess charge vs. v dd current detect vs. v dd 9) output delay for short vs. v dd r5460x2xxax 0 2 4 6 8 10 12 14 2 2.5 3 3.5 4 4.5 v dd [v] output delay of excess discharge current tv det3 [ms] v dd =2.4v,3.3v ,4.2v,vc-vss=3.5v,v-=0v to 0.5v r5460x2xxax 0 0.2 0.4 0.6 0.8 1 1.2 1.4 22.533.544.5 v dd [v] output delay of release from excess discharge-current tv rel3 [ms] v dd =2.4v,3.3v ,4.2v vc-vss=3.5v v-=3.0v to 0v r5460x2xxax 0 1 2 3 4 5 6 7 8 9 22.533.544.5 v dd [v] output delay of excess charge-current tv det4 [ms] v dd =2.4v, 3.3v, 4.2v vc-vss=3.5v v-=0v to -0.9v r5460x2xxax 0 0.2 0.4 0.6 0.8 1 1.2 1.4 2 2.5 3 3.5 4 4.5 v dd [v] output delay of release from excess charge-current tv rel4 [ms] v dd =2.4v, 3.3v, 4.2v vc-vss=3.5v v-=-0.9v to 0v r5460x2xxax 0 50 100 150 200 250 300 350 22.533.544.5 v dd [v] output delay of short protection t short [ s] v dd =2.4v, 3.3v, 4.2v vc-vss=3.5v v-=0v to 1.5v
r5460x 28 part 3 supply current dependence on v dd test circuit supply current vs. v dd a version c version v dd v- c out d out vss 1k r1 330 c1 r3 vc r2 330 c2 c3 0.01 f 0.1 f 0.1 f pack+ pack- a r5460 cell1 cell2 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 012345678 v dd (v) supply current i dd (ua) 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 012345678 v dd (v) supply current i dd (ua)
r5460x 29 part 4 over-charge detector, release voltage from ov er-charge, over-discharge detector, release voltage from over-discharge dependence on external resistance value test circuit over-charge detector threshold(vdet1) / released voltage from over-discharge(vrel1) vs. r1 over-discharge(vdet2) / released from over-charge threshold(vrel2) vs. r1 v dd v- c out d out vss 1k r1 c1 r3 vc r2 330 c2 c3 0.01 f 0.1 f 0.1 f pack+ pack- r5460 cell1 cell2 r5460x202aa 4.240 4.244 4.248 4.252 4.256 4.260 4.264 0 200 400 600 800 1000 r1[ ? ] v det1 [v] 4.040 4.044 4.048 4.052 4.056 4.060 4.064 v rel1 [v] v det1 v rel1 r5460x201ac 4.341 4.343 4.345 4.347 4.349 4.351 4.353 4.355 4.357 4.359 4.361 0 200 400 600 800 1000 r1[ ? ] v det1 [v] 4.144 4.146 4.148 4.150 4.152 4.154 4.156 4.158 4.160 4.162 4.164 v rel1 [v] v det1 v rel1 r5460x202aa 2.385 2.390 2.395 2.400 2.405 0 200 400 600 800 1000 r1[ ? ] v det2 [v] 2.95 2.96 2.97 2.98 2.99 3.00 3.01 3.02 3.03 3.04 3.05 v rel2 [v] v det2 v rel2 r5460x201ac 2.296 2.298 2.300 2.302 2.304 2.306 2.308 2.310 2.312 2.314 2.316 0 200 400 600 800 1000 r1[ ? ] v det2 [v] 2.30 2.34 2.38 2.42 2.46 2.50 v rel2 [v] vdet2 vrel2
r5460x 30 part 5 charger voltage at released from ov er-discharge with a charger dependence on r2 test circuit charger voltage at release from over-discharge with a charger vs. r2 v dd v- c out d out vss r1 c1 r3 vc r2 c2 c3 0.01 f 0.1 f 0.1 f pack+ pack- r5460 330 330 cell1 cell2 r5460x201ac 0 1 2 3 4 5 6 7 8 9 10 0123456789101112 r3[k ? ] charger voltage of release from over- discharge[v] cell1=4.25v,cell2=4.25v
r5460x 31 r5460x code list part no. vdet1(v) vrel1(v) vdet2(v) vrel2(v) vdet3(v) vdet4(v) tvdet1(s) tvdet2(ms) tvdet3(ms) tvdet4(ms) tshort(us) 0v charge r5460n201ac 4.350 4.150 2.300 - 0.200 -0.400 1 128 12 8 300 ok r5460n202a a 4.250 4.050 2.400 3.000 0.150 -0.400 1 128 12 8 300 ok r5460n203a a 4.350 4.150 2.300 3.000 0.200 -0.400 1 128 12 8 300 ok r5460n204a a 4.350 4.150 2.300 3.000 0.150 -0.200 1 128 12 8 300 ok r5460n205a a 4.250 4.050 2.400 3.000 0.100 -0.200 1 128 12 8 300 ok r5460n206a a 4.290 4.050 2.900 3.100 0.150 -0.200 1 128 12 8 300 ok r5460n207a a 4.350 4.150 2.300 3.000 0.200 -0.200 1 128 12 8 300 ok r5460n207ae 4.350 4.150 2.300 3.000 0.200 -0.200 1 128 12 8 300 ok r5460n207a f 4.350 4.150 2.300 3.000 0.200 -0.200 1 128 12 8 300 ok r5460n208a a 4.250 4.050 2.400 3.000 0.200 -0.200 1 128 12 8 300 ok r5460n208ae 4.250 4.050 2.400 3.000 0.200 -0.200 1 128 12 8 300 ok r5460n208a f 4.250 4.050 2.400 3.000 0.200 -0.200 1 128 12 8 300 ok r5460n209ad 3.650 3.450 2.500 3.000 0.200 -0.200 1 128 12 8 300 ok r5460n210ad 3.650 3.450 2.000 2.500 0.200 -0.200 1 128 12 8 300 ok r5460n211a a 4.250 4.050 3.000 3.200 0.150 -0.200 1 128 12 8 300 ok r5460n212a a 4.290 4.050 3.000 3.200 0.200 -0.200 1 128 12 8 300 ok r5460n212ae 4.290 4.050 3.000 3.200 0.200 -0.200 1 128 12 8 300 ok r5460n212a f 4.290 4.050 3.000 3.200 0.200 -0.200 1 128 12 8 300 ok r5460n213ad 3.900 3.450 2.000 2.500 0.200 -0.200 1 128 12 8 300 ok r5460n214a c 4.250 4.050 2.800 3.000 0.200 -0.200 1 128 12 8 300 ok r5460n214ae 4.250 4.050 2.800 3.000 0.200 -0.200 1 128 12 8 300 ok r5460n214a f 4.250 4.050 2.800 3.000 0.200 -0.200 1 128 12 8 300 ok r5460n215a f 4.300 4.100 3.200 3.400 0.150 -0.200 1 128 12 8 300 ok r5460n218a f 4.250 4.050 2.800 3.000 0.200 -0.100 1 128 12 8 300 ok r5460k201ac 4.350 4.150 2.300 - 0.200 -0.400 1 128 12 8 300 ok r5460k202aa 4.250 4.050 2.400 3.000 0.150 -0.400 1 128 12 8 300 ok r5460k203aa 4.350 4.150 2.300 3.000 0.200 -0.400 1 128 12 8 300 ok r5460k204aa 4.350 4.150 2.300 3.000 0.150 -0.200 1 128 12 8 300 ok r5460k205aa 4.250 4.050 2.400 3.000 0.100 -0.200 1 128 12 8 300 ok r5460k206aa 4.290 4.050 2.900 3.100 0.150 -0.200 1 128 12 8 300 ok r5460k207aa 4.350 4.150 2.300 3.000 0.200 -0.200 1 128 12 8 300 ok r5460k208aa 4.250 4.050 2.400 3.000 0.200 -0.200 1 128 12 8 300 ok r5460k209ad 3.650 3.450 2.500 3.000 0.200 -0.200 1 128 12 8 300 ok r5460k210ad 3.650 3.450 2.000 2.500 0.200 -0.200 1 128 12 8 300 ok r5460k211aa 4.250 4.050 3.000 3.200 0.150 -0.200 1 128 12 8 300 ok r5460k213ad 3.900 3.450 2.000 2.500 0.200 -0.200 1 128 12 8 300 ok r5460k214ac 4.250 4.050 2.800 3.000 0.200 -0.200 1 128 12 8 300 ok (as of 2009/12/21) r5460 x 2xx a x package type function version n : sot23-6 a : over-charge = auto-release over-discharge = auto release k : plp1820-6 c : over-charge = auto-release over-discharge = latch d : over-charge = auto-release over-discharge = auto release vdet1u/l < 4.0v e : over-charge = auto-release over-discharge = auto release ( no hysteresis cancellation ) f : over-charge = auto-release over-discharge = latch ( hysteresis ) delay time version ver. vdet1(s) vdet2(ms) vdet3(ms) vdet4(ms) tshort(us) voltage version a 1 128 12 8 300

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