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| 1/41 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. led drivers for lcd backlights mulitifunction backlight led driver for small lcd panels (charge pump type) BD6095GUl,BD6095GU description BD6095GUl/BD6095GU is ?intelligent led driver? that is the most suitable for the cellular phone. it has many functions that are needed to "the upper side" of the cellular phone. it has alc function, that is ?low power consumption system? realized. it has ?contents adaptive interface? (ext ernal pwm control), that is ?low power consumption system? realized. it adopts the very thin csp package that is the most suitable for the slim phone. features 1) total 5leds driver for lcd backlight it can set maximum 25.6ma /ch by 128steps (current dac) for lcd display. 3leds(led1~led3) are same controlled. another 2leds(led4~5) can be independent controlled. (enable and current setting) 2leds(led4~5) can be attributed to ?main group?. ?main group? can be controlled by auto luminous control (alc) system. ?main group? can be controlled by external pwm signal. 2) 1led driver for flash/torch it can set maximum 120ma for flash led driver. it has flash mode and torch mode, there ca n be changed by external pin or register. 3) a uto l uminous c ontrol (alc) main backlight can be controlled by ambient brightness. photo diode, photo transistor, photo ic(linear/logarithm) can be connected. bias source for ambient light sensor , gain and offset adjustment are built in. led driver current as ambient level can be customized. 4) 2ch series regulator (ldo) it has selectable output voltage by the register. ldo1,ldo2 : iomax=150ma 5) charge pump dc/dc for led driver it has x1/x1.33/x1.5/x2 mode t hat will be selected automatically. soft start functions over voltage protection (auto-return type) over current protection (auto-return type) 6) thermal shutdown (auto-return type) 7) i 2 c bus fs mode (max 400khz) 8) vcsp50l3 (3.75mm 2 , 0.55mmt max) small and thin csp package (BD6095GUl) 9) vcsp85h3 (3.75mm 2 , 1.0mmt max) small and thin csp package (BD6095GU) *this chip is not designed to protect itself against radioactive rays. *this material may be changed on its way to designing. *this material is not the official specification. absolute ma ximum ratings (ta=25 o c) parameter symbol ratings unit maximum voltage vmax 7 v power dissipation pd 1500 mw operating temperature range topr -35 ~ +85 o c storage temperature range tstg -55 ~ +150 o c note)power dissipation deleting is 12.0mw/ o c, when it?s used in over 25 o c. (it?s deleting is on the board that is rohm?s standard) no.11040eat31
technical note 2/41 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BD6095GUl,BD6095GU operating conditions (vbat vio, ta=-35~85 o c) parameter symbol ratrings unit vbat input voltage vbat 2.7~5.5 v vio pin voltage vio 1.65~3.3 v electrical characteristics (unless otherwise specified, ta=25c, vbat=3.6v, vio=1.8v) parameter symbol limits unit condition min. typ. max. circuit current vbat circuit current 1 ibat1 - 0.1 1.0 a resetb=0v, vio=0v vbat circuit current 2 ibat2 - 0.5 3.0 a resetb=0v, vio=1.8v vbat circuit current 3 ibat3 - 90 150 a ldo1=ldo2=on, i ldo =0ma other blocks=off vbat circuit current 4 ibat4 - 61 65 ma dc/dc x1mode, i led =60ma vbat=3.7v, led vf=3.0v vbat circuit current 5 ibat5 - 83 94 ma dc/dc x1.33mode, i led =60ma vbat=3.1v, led vf=3.0v vbat circuit current 6 ibat6 - 93 104 ma dc/dc x1.5mode, i led =60ma vbat=2.9v, led vf=3.5v vbat circuit current 7 ibat7 - 124 136 ma dc/dc x2mode, i led =60ma vbat=3.2v, led vf=4.0v vbat circuit current 8 ibat8 - 0.25 1.0 ma onl y alc block on adcyc=0.5s setting except sensor current led driver led current step (setup) iledstp1 128 step led1~5 led current step (at slope) iledstp2 256 step led1~5 led current step (flash) iledstpfl 32 step ledfl white led maximum setup current imaxwled - 25.6 - ma led1~5 flash led maximum setup current imaxfled - 120 - ma ledfl led1~5 current accuracy iwled -7% 15 +7% ma i led =15ma setting at vled=1.0v flash led current accuracy ifled -7% 60 +7% ma i led =60ma setting at vled=1.0v led current matching iledmt - - 4 % between led1~5 at vled=1.0v led off leak current ilkled - - 1.0 a vled=4.5v dc/dc charge pump) maximum output voltage vocp 4.65 5.1 5.55 v current load iout - - 250 ma vbat 3.2v, vout=4v oscillator frequency fosc 0.8 1.0 1.2 mhz over voltage protection detect voltage ovp - - 6.0 v short circuit current limit ilim - 125 250 ma vout=0v i 2 c input (sda, scl) low level input voltage vil -0.3 - 0.25 vio v high level input voltage vih 0.75 vio - vbat +0.3 v hysteresis of schmitt trigger input vhys 0.05 vio - - v low level output voltage (sda) at 3ma sink current vol 0 - 0.3 v input current each i/o pin lin -3 - 3 a input voltage = 0.1vio~0.9vio resetb low level input voltage vil -0.3 - 0.25 vio v high level input voltage vih 0.75 vio - vbat +0.3 v input current each i/o pin iin -3 - 3 a input voltage = 0.1vio~0.9vio technical note 3/41 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BD6095GUl,BD6095GU electrical characteristics (unless otherwise specified, ta=25c, vbat=3.6v, vio=1.8v) parameter symbol limits unit condition min. typ. max. regulator (ldo1) output voltage vo1 1.164 1.20 1.236 v io=50ma 1.261 1.30 1.339 v io=50ma 1.455 1.50 1.545 v io=50ma 1.552 1.60 1.648 v io=50ma 1.746 1.80 1.854 v io=50ma technical note 4/41 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BD6095GUl,BD6095GU electrical characteristics (unless otherwise specified, ta=25c, vbat=3.6v, vio=1.8v) parameter symbol limits unit condition min. typ. max. sensor interface sbias output voltage vos 2.850 3.0 3.150 v io=200 a technical note 5/41 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BD6095GUl,BD6095GU block diagram / application circuit example c2p c1p charge pump vbatcp i/o i 2 c interface iref tsd led1 back light x1 / x1.33 / x1.5 / x2 charge pump mode control vout ovp led terminal voltage feedback 2.2 f (6.3v) to led1~5 ledfl digital control 10f vref level shift vio resetb scl sd a vbat sensor i/f sbias ssens bh1600fvc sgnd gc1 1 f gc2 wpwmin ldo1 vo selectable io=150ma 1 f ldo1o ldo2 vo selectable io=150ma 1 f ldo2o flashcnt ledfl flash led2 led3 led4 led5 vbatldo vbat1 t1 t2 t3 t4 ledgnd cpgnd (open) (open) c3p c1n c2n 1 f (6.3v) 1 f (6.3v) c3n 1 f (6.3v) led control alc fig.1 block diagram / application circuit example technical note 6/41 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BD6095GUl,BD6095GU pin arrangement bottom view f t4 ldo1o ssens vbat1 sbias t3 e vbatldo ldo2o gc2 gc1 sgnd vio d wpwmin led1 flashcnt sda scl c1n c led3 led2 resetb c1p c2n b led4 led5 ledgnd vout vbatcp c2p a t1 ledfl cpgnd c3n c3p t2 1 2 3 4 5 6 index total: 35 balls technical note 7/41 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BD6095GUl,BD6095GU package BD6095GUl vcsp50l3 size : 3.75mm a ball pitch : 0.5mm height : 0.55mm max bd6095 lot no. ( unit : mm ) technical note 8/41 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BD6095GUl,BD6095GU BD6095GU vcsp85h3 size : 3.75mm a ball pitch : 0.5mm height : 1.0mm max d6095 lot no. ( unit : mm ) technical note 9/41 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BD6095GUl,BD6095GU pin functions no ball no. pin name i/o esd diode functions equivalent circuit for power for ground 1 b5 vbatcp - - gnd power supply for charge pump a 2 f4 vbat1 - - gnd power supply a 3 e1 vbatldo - - gnd power supply for ldo a 4 a1 t1 i vbat gnd test input pin (short to ground) s 5 a6 t2 i vbat gnd test input pin (short to ground) s 6 f6 t3 o vbat gnd test output pin (open) m 7 f1 t4 o vbat gnd test output pin (open) n 8 e6 vio - vbat gnd power supply for i/o and digital c 9 c4 resetb i vbat gnd reset input (l: reset, h: reset cancel) h 10 d4 sda i/o vbat gnd i 2 c data input / output i 11 d5 scl i vbat gnd i 2 c clock input h 12 a3 cpgnd - vbat - ground b 13 b3 ledgnd - vbat - ground b 14 d6 c1n i/o vbat gnd charge pump capacitor is connected f 15 c5 c1p i/o - gnd charge pump capacitor is connected g 16 c6 c2n i/o vbat gnd charge pump capacitor is connected f 17 b6 c2p i/o - gnd charge pump capacitor is connected g 18 a4 c3n i/o vbat gnd charge pump capacitor is connected f 19 a5 c3p i/o - gnd charge pump capacitor is connected g 20 b4 vout o - gnd charge pump output pin a 21 f2 ldo1o o vbat gnd ldo1 output pin q 22 e2 ldo2o o vbat gnd ldo2 output pin q 23 d2 led1 i - gnd led cathode connection 1 e 24 c2 led2 i - gnd led cathode connection 2 e 25 c1 led3 i - gnd led cathode connection 3 e 26 b1 led4 i - gnd led cathode connection 4 e 27 b2 led5 i - gnd led cathode connection 5 e 28 a2 ledfl i - gnd led cathode connection for flash e 29 f5 sbias o vbat gnd bias output for the ambient light sensor q 30 f3 ssens i vbat gnd ambi ent light sensor input n 31 e4 gc1 o vbat gnd ambient light sensor gain control output 1 x 32 e3 gc2 o vbat gnd ambient light sensor gain control output 2 x 33 e5 sgnd - vbat - ground b 34 d1 wpwmin i vbat gnd exter nal pwm input for back light l 35 d3 flashcnt i vbat gnd external enable for flash l the led terminal that isn't used is to short-circuit to the ground. but, the setup of a regist er concerned with led that isn't used is prohibited. total: 35 pin technical note 10/41 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BD6095GUl,BD6095GU equivalent circuit vbat c a vbat b e vbat f g vio vbat h vio vbat i vio vbat j vbat vbat l vbat vbat m vbat n vbat vbat q vbat vbat p vio vio k vbat o vbat vbat r vbat vbat s vio vbat t vos vbat x technical note 11/41 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BD6095GUl,BD6095GU i 2 c bus format the writing/reading operation is based on the i 2 c slave standard. ? slave address a7 a6 a5 a4 a3 a2 a1 r/w 1 1 1 0 1 1 0 1/0 ? bit transfer scl transfers 1-bit data during h. scl cannot change signal of sda during h at the time of bit transfer. if sda changes while scl is h, start conditions or stop conditions will occur and it will be interpreted as a control signal. sda scl sda a state of stability data are effective sda it can change ? start and stop condition when sda and scl are h, data is not transferred on the i 2 c- bus. this condition indicates, if sda changes from h to l while scl has been h, it will become start (s) conditions, and an access start, if sda changes from l to h while scl has been h, it will become stop (p) conditions and an access end. sda scl s p start condition stop condition ? acknowledge it transfers data 8 bits each after the occurrence of start condition. a transmitter opens sda after transfer 8bits data, and a receiver returns the acknowledge signal by setting sda to l. 12 89 data output by transmitter data output by receiver acknowledge not acknowledge s start condition clock pulse for acknowledgement scl technical note 12/41 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BD6095GUl,BD6095GU ? writing protocol a register address is transferred by the next 1 byte that transferred the slave address and the write-in command. the 3rd byte writes data in the internal register written in by the 2nd byte, and after 4th byte or, the increment of register address is carried out automatically. however, when a register address turns into the last address, it is set to 00h by the next transmission. after the transmission end, the increment of the address is carried out. s a a a p register address slave address from master to slave from slave to master r/w=0(write) data a d7 d6 d5 d4 d3 d2 d1 d0 d7 d6 d5 d4 d3 d2 d1 d0 a 7 a 6 a 5 a 4 a 3 a 2 a 1 a 0 0 x x x x x x x *1 *1 data a =acknowledge(sd a low) a =not acknowledge(sda high) s=start condition p=stop condition *1: write timing register address increment register address increment ? reading protocol it reads from the next byte after writing a slave address and r/w bit. the register to read considers as the following address accessed at the end, and the data of the address that carried out the increment is read after it. if an address turns into the last address, the next byte will read out 00h. after the transmission end, the increment of the address is carried out. 1 s a p from master to slave from slave to master r/w=1(read) data a data slave address d7 d6 d5 d4 d3 d2 d1 d0 d7 d6 d5 d4 d3 d2 d1 d0 register address increment x x x x x x x a =acknowledge(sd a low) a =not acknowledge(sda high) s=start condition p=stop condition register address increment a ? multiple reading protocols after specifying an internal address, it reads by repeated start condition and changing the data transfer direction. the data of the address that carried out the increment is read after it. if an address turns into the last address, the next byte w ill read out 00h. after the transmission end, the increment of the address is carried out. r/w=0(write) r/w=1(read) slave address register address slave address data data s a a a sr 1 0 a 7 a 6 a 5 a 4 a 3 a 2 a 1 a 0 x x x x x x x x x x x x x x a =acknowledge(sd a low) a =not acknowledge(sda high) s=start condition p=stop condition from master to slave from slave to master register address increment register address increment p a d7 d6 d5 d4 d3d2 d1d0 d7d6 d5d4d3d2d1d0 a sr=repeated start condition as for reading protocol and multiple reading protocols, please do a(not acknowledge) after doing the final reading operation. it stops with read when ending by a(acknowledge), and sda stops in the state of low when the reading data of that time is 0. however, this state returns usually when scl is moved, data is read, and a(not acknowledge) is done. technical note 13/41 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BD6095GUl,BD6095GU timing diagram sda s cl t su;dat t low s sr p s t buf t hd;sta t su;sta t high t hd;sta t hd;dat t su;sto electrical characteristics(unless otherwise specified, ta=25 o c, vbat=3.6v, vio=1.8v) parameter symbol standard-mode fast-mode unit min. typ. max. min. typ. max. i 2 c bus format scl clock frequency f scl 0 - 100 0 - 400 khz low period of the scl clock t low 4.7 - - 1.3 - - s high period of the scl clock t high 4.0 - - 0.6 - - s hold time (repeated) start condition after this period, the first clock is generated t hd;sta 4.0 - - 0.6 - - s set-up time for a repeated start condition t su;sta 4.7 - - 0.6 - - s data hold time t hd;dat 0 - 3.45 0 - 0.9 s data set-up time t su;dat 250 - - 100 - - ns set-up time for stop condition t su;sto 4.0 - - 0.6 - - s bus free time between a stop and start condition t buf 4.7 - - 1.3 - - s technical note 14/41 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BD6095GUl,BD6095GU register list address w/r register data function d7 d6 d5 d4 d3 d2 d1 d0 00h w - - - - - - - sftrst software reset 01h w - led5md(1) led5md(0) led4md - wpwmen alcen mledmd led, alc control 02h w flashen torchen sleden mleden - - ldo2en ldo1en power control 03h w - imled(6) imled(5) imled(4) imled(3) imled(2) imled(1) imled(0) ?main group? led current setting at non-alc mode 04h w - isled(6) isled(5) isled(4) isled(3) isled(2) isled(1) isled(0) ?sub group? led current setting 05h w - - - iftled(4) iftled(3) iftled(2) iftled(1) iftled(0) flash led ?torch mode? current setting 06h w - - - iffled(4) iffled(3) iffled(2) iffled(1) iffled(0) flash led ?flash mode? current setting 07h w ldo2vsel(3) ldo2vsel(2) ldo2vsel(1) ldo2vsel(0) ldo1vsel(3) ldo1vsel(2) ldo1vsel(1) ldo1vsel(0) ldo1, ldo2 vout setting 08h w thl(3) thl(2) thl(1) thl(0) tlh(3) tlh(2) tlh(1) tlh(0) main current transition 09h - - - - - - - - - - 0ah - - - - - - - - - - 0bh w adcyc(1) adcyc(0) gain(1) gain(0) stype vsb mdcir sbiason alc mode setting 0ch w sofs(3) sofs(2) sofs(1) sofs(0) sgain(3) sgain(2) sgain(1) sgain(0) adc data adjustment 0dh r - - - - amb(3) amb(2) amb(1) amb(0) ambient level 0eh w - iu0(6) iu0(5) iu0(4) iu0(3) iu0(2) iu0(1) iu0(0) main current at ambient level 0h 0fh w - iu1(6) iu1(5) iu1(4) iu1(3) iu1(2) iu1(1) iu1(0) main current at ambient level 1h 10h w - iu2(6) iu2(5) iu2(4) iu2(3) iu2(2) iu2(1) iu2(0) main current at ambient level 2h 11h w - iu3(6) iu3(5) iu3(4) iu3(3) iu3(2) iu3(1) iu3(0) main current at ambient level 3h 12h w - iu4(6) iu4(5) iu4(4) iu4(3) iu4(2) iu4(1) iu4(0) main current at ambient level 4h 13h w - iu5(6) iu5(5) iu5(4) iu5(3) iu5(2) iu5(1) iu5(0) main current at ambient level 5h 14h w - iu6(6) iu6(5) iu6(4) iu6(3) iu6(2) iu6(1) iu6(0) main current at ambient level 6h 15h w - iu7(6) iu7(5) iu7(4) iu7(3) iu7(2) iu7(1) iu7(0) main current at ambient level 7h 16h w - iu8(6) iu8(5) iu8(4) iu8(3) iu8(2) iu8(1) iu8(0) main current at ambient level 8h 17h w - iu9(6) iu9(5) iu9(4) iu9(3) iu9(2) iu9(1) iu9(0) main current at ambient level 9h 18h w - iua(6) iua(5) iua(4) iua(3) iua(2) iua(1) iua(0) main current at ambient level ah 19h w - iub(6) iub(5) iub(4) iub(3) iub(2) iub(1) iub(0) main current at ambient level bh 1ah w - iuc(6) iuc(5) iuc(4) iuc(3) iuc(2) iuc(1) iuc(0) main current at ambient level ch 1bh w - iud(6) iud(5) iud(4) iud(3) iud(2) iud(1) iud(0) main current at ambient level dh 1ch w - iue(6) iue(5) iue(4) iue(3) iue(2) iue(1) iue(0) main current at ambient level eh 1dh w - iuf(6) iuf(5) iuf(4) iuf(3) iuf(2) iuf(1) iuf(0) main current at ambient level fh input "0? for "-". prohibit to accessing the address that isn?t mentioned. the time indicated by register explanation is the typ time made by dividing of the built-in osc. technical note 15/41 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BD6095GUl,BD6095GU register map address 00h < software reset > address r/w bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 00h w - - - - - - - sftrst initial value 00h - - - - - - - 0 bit [7:1] : (not used) bit0 : sftrst software reset command ?0? : reset cancel ?1? : reset (all register initializing) refer to ?the explanation of reset? for detail. address 01h < led, alc control > address r/w bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 01h w - led5md(1) led5md(0) led4md - wpwmen alcen mledmd initial value 00h - 0 0 0 - 0 0 0 bit7 : (not used) bit [6:5] : led5md(1:0) led5 group select (main/sub/off) ?00? : led5 off ?01? : reserved ?10? : led5 ?sub group? ?11? : led5 ?main group? refer to ?the explanation of led driver? for detail. bit4 : led4md led4 group select (main/sub) ?0? : led4 ?sub group? ?1? : led4 ?main group? refer to ?the explanation of led driver? for detail. bit3 : (not used) bit2 : wpwmen external pwm input ?wpwmin? terminal enable control (valid/invalid) ?0? : wpwmin input invalid ?1? : wpwmin input valid refer to ?(11) current adjustment? of ?the explanation of alc? for detail. bit1 : alcen alc function control (on/off) ?0? : alc function off ?1? : alc function on refer to ?(1) auto luminous control on/off? of ?the explanation of alc? for detail. bit0 : mledmd ?main group? led mode select (non alc / with alc) ?0? : non alc mode ?1? : alc mode refer to ?(1) auto luminous control on/off? of ?the explanation of alc? for detail. technical note 16/41 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BD6095GUl,BD6095GU address 02h < power control > address r/w bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 02h w flashen torchen sleden mleden - - ldo2en ldo1en initial value 00h 0 0 0 0 - - 0 0 bit [7:6] : flashen , torchen ledfl control (flash on / torch on / off) (at flashcnt=l) (at flashcnt=h) "flashcnt" means external pin. ?00? : ledfl: off, flash mode on ?01? : ledfl: torch mode on, flash mode on ?10? : ledfl: flash mode on, flash mode on ?11? : reserved for torch/flash, refer to ?flash led current setting? (address 05h, 06h) at flashcnt=h, even if resetb=l, the flash mode becomes on, and led is turned on. but, the setup of led current becomes the minimum setting in this case. (because the setting of led current is reset at the time of resetb=l.) refer to ?the explanation of led driver? for detail. bit5 : sleden sub group led control (on/off) ?0? : ?sub group? led off ?1? : ?sub group? led on bit4 : mleden main group led control (on/off) ?0? : ?main group? led off ?1? : ?main group? led on bit [3:2] : (not used) bit1 : ldo2en ldo2 control (on/off) ?0? : ldo2 off ?1? : ldo2 on bit0 : ldo1en ldo1 control (on/off) ?0? : ldo1 off ?1? : ldo1 on technical note 17/41 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BD6095GUl,BD6095GU address 03h < ?main group? led current setting at non-alc mode > address r/w bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 03h w - imled(6) imled(5) imled(4) im led(3) imled(2) imled(1) imled(0) initial value 00h - 0 0 0 0 0 0 0 bit7 : (not used) bit [6:0] : imled(6:0) main group led current setting at non-alc mode ?0000000? : 0.2 ma ?1000000? : 13.0 ma ?0000001? : 0.4 ma ?1000001? : 13.2 ma ?0000010? : 0.6 ma ?1000010? : 13.4 ma ?0000011? : 0.8 ma ?1000011? : 13.6 ma ?0000100? : 1.0 ma ?1000100? : 13.8 ma ?0000101? : 1.2 ma ?1000101? : 14.0 ma ?0000110? : 1.4 ma ?1000110? : 14.2 ma ?0000111? : 1.6 ma ?1000111? : 14.4 ma ?0001000? : 1.8 ma ?1001000? : 14.6 ma ?0001001? : 2.0 ma ?1001001? : 14.8 ma ?0001010? : 2.2 ma ?1001010? : 15.0 ma ?0001011? : 2.4 ma ?1001011? : 15.2 ma ?0001100? : 2.6 ma ?1001100? : 15.4 ma ?0001101? : 2.8 ma ?1001101? : 15.6 ma ?0001110? : 3.0 ma ?1001110? : 15.8 ma ?0001111? : 3.2 ma ?1001111? : 16.0 ma ?0010000? : 3.4 ma ?1010000? : 16.2 ma ?0010001? : 3.6 ma ?1010001? : 16.4 ma ?0010010? : 3.8 ma ?1010010? : 16.6 ma ?0010011? : 4.0 ma ?1010011? : 16.8 ma ?0010100? : 4.2 ma ?1010100? : 17.0 ma ?0010101? : 4.4 ma ?1010101? : 17.2 ma ?0010110? : 4.6 ma ?1010110? : 17.4 ma ?0010111? : 4.8 ma ?1010111? : 17.6 ma ?0011000? : 5.0 ma ?1011000? : 17.8 ma ?0011001? : 5.2 ma ?1011001? : 18.0 ma ?0011010? : 5.4 ma ?1011010? : 18.2 ma ?0011011? : 5.6 ma ?1011011? : 18.4 ma ?0011100? : 5.8 ma ?1011100? : 18.6 ma ?0011101? : 6.0 ma ?1011101? : 18.8 ma ?0011110? : 6.2 ma ?1011110? : 19.0 ma ?0011111? : 6.4 ma ?1011111? : 19.2 ma ?0100000? : 6.6 ma ?1100000? : 19.4 ma ?0100001? : 6.8 ma ?1100001? : 19.6 ma ?0100010? : 7.0 ma ?1100010? : 19.8 ma ?0100011? : 7.2 ma ?1100011? : 20.0 ma ?0100100? : 7.4 ma ?1100100? : 20.2 ma ?0100101? : 7.6 ma ?1100101? : 20.4 ma ?0100110? : 7.8 ma ?1100110? : 20.6 ma ?0100111? : 8.0 ma ?1100111? : 20.8 ma ?0101000? : 8.2 ma ?1101000? : 21.0 ma ?0101001? : 8.4 ma ?1101001? : 21.2 ma ?0101010? : 8.6 ma ?1101010? : 21.4 ma ?0101011? : 8.8 ma ?1101011? : 21.6 ma ?0101100? : 9.0 ma ?1101100? : 21.8 ma ?0101101? : 9.2 ma ?1101101? : 22.0 ma ?0101110? : 9.4 ma ?1101110? : 22.2 ma ?0101111? : 9.6 ma ?1101111? : 22.4 ma ?0110000? : 9.8 ma ?1110000? : 22.6 ma ?0110001? : 10.0 ma ?1110001? : 22.8 ma ?0110010? : 10.2 ma ?1110010? : 23.0 ma ?0110011? : 10.4 ma ?1110011? : 23.2 ma ?0110100? : 10.6 ma ?1110100? : 23.4 ma ?0110101? : 10.8 ma ?1110101? : 23.6 ma ?0110110? : 11.0 ma ?1110110? : 23.8 ma ?0110111? : 11.2 ma ?1110111? : 24.0 ma ?0111000? : 11.4 ma ?1111000? : 24.2 ma ?0111001? : 11.6 ma ?1111001? : 24.4 ma ?0111010? : 11.8 ma ?1111010? : 24.6 ma ?0111011? : 12.0 ma ?1111011? : 24.8 ma ?0111100? : 12.2 ma ?1111100? : 25.0 ma ?0111101? : 12.4 ma ?1111101? : 25.2 ma ?0111110? : 12.6 ma ?1111110? : 25.4 ma ?0111111? : 12.8 ma ?1111111? : 25.6 ma technical note 18/41 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BD6095GUl,BD6095GU address 04h < ?sub group? led current setting > address r/w bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 04h w - isled(6) isled(5) isled(4) is led(3) isled(2) isled(1) isled(0) initial value 00h - 0 0 0 0 0 0 0 bit7 : (not used) bit [6:0] : isled(6:0) sub group led current setting ?0000000? : 0.2 ma ?1000000? : 13.0 ma ?0000001? : 0.4 ma ?1000001? : 13.2 ma ?0000010? : 0.6 ma ?1000010? : 13.4 ma ?0000011? : 0.8 ma ?1000011? : 13.6 ma ?0000100? : 1.0 ma ?1000100? : 13.8 ma ?0000101? : 1.2 ma ?1000101? : 14.0 ma ?0000110? : 1.4 ma ?1000110? : 14.2 ma ?0000111? : 1.6 ma ?1000111? : 14.4 ma ?0001000? : 1.8 ma ?1001000? : 14.6 ma ?0001001? : 2.0 ma ?1001001? : 14.8 ma ?0001010? : 2.2 ma ?1001010? : 15.0 ma ?0001011? : 2.4 ma ?1001011? : 15.2 ma ?0001100? : 2.6 ma ?1001100? : 15.4 ma ?0001101? : 2.8 ma ?1001101? : 15.6 ma ?0001110? : 3.0 ma ?1001110? : 15.8 ma ?0001111? : 3.2 ma ?1001111? : 16.0 ma ?0010000? : 3.4 ma ?1010000? : 16.2 ma ?0010001? : 3.6 ma ?1010001? : 16.4 ma ?0010010? : 3.8 ma ?1010010? : 16.6 ma ?0010011? : 4.0 ma ?1010011? : 16.8 ma ?0010100? : 4.2 ma ?1010100? : 17.0 ma ?0010101? : 4.4 ma ?1010101? : 17.2 ma ?0010110? : 4.6 ma ?1010110? : 17.4 ma ?0010111? : 4.8 ma ?1010111? : 17.6 ma ?0011000? : 5.0 ma ?1011000? : 17.8 ma ?0011001? : 5.2 ma ?1011001? : 18.0 ma ?0011010? : 5.4 ma ?1011010? : 18.2 ma ?0011011? : 5.6 ma ?1011011? : 18.4 ma ?0011100? : 5.8 ma ?1011100? : 18.6 ma ?0011101? : 6.0 ma ?1011101? : 18.8 ma ?0011110? : 6.2 ma ?1011110? : 19.0 ma ?0011111? : 6.4 ma ?1011111? : 19.2 ma ?0100000? : 6.6 ma ?1100000? : 19.4 ma ?0100001? : 6.8 ma ?1100001? : 19.6 ma ?0100010? : 7.0 ma ?1100010? : 19.8 ma ?0100011? : 7.2 ma ?1100011? : 20.0 ma ?0100100? : 7.4 ma ?1100100? : 20.2 ma ?0100101? : 7.6 ma ?1100101? : 20.4 ma ?0100110? : 7.8 ma ?1100110? : 20.6 ma ?0100111? : 8.0 ma ?1100111? : 20.8 ma ?0101000? : 8.2 ma ?1101000? : 21.0 ma ?0101001? : 8.4 ma ?1101001? : 21.2 ma ?0101010? : 8.6 ma ?1101010? : 21.4 ma ?0101011? : 8.8 ma ?1101011? : 21.6 ma ?0101100? : 9.0 ma ?1101100? : 21.8 ma ?0101101? : 9.2 ma ?1101101? : 22.0 ma ?0101110? : 9.4 ma ?1101110? : 22.2 ma ?0101111? : 9.6 ma ?1101111? : 22.4 ma ?0110000? : 9.8 ma ?1110000? : 22.6 ma ?0110001? : 10.0 ma ?1110001? : 22.8 ma ?0110010? : 10.2 ma ?1110010? : 23.0 ma ?0110011? : 10.4 ma ?1110011? : 23.2 ma ?0110100? : 10.6 ma ?1110100? : 23.4 ma ?0110101? : 10.8 ma ?1110101? : 23.6 ma ?0110110? : 11.0 ma ?1110110? : 23.8 ma ?0110111? : 11.2 ma ?1110111? : 24.0 ma ?0111000? : 11.4 ma ?1111000? : 24.2 ma ?0111001? : 11.6 ma ?1111001? : 24.4 ma ?0111010? : 11.8 ma ?1111010? : 24.6 ma ?0111011? : 12.0 ma ?1111011? : 24.8 ma ?0111100? : 12.2 ma ?1111100? : 25.0 ma ?0111101? : 12.4 ma ?1111101? : 25.2 ma ?0111110? : 12.6 ma ?1111110? : 25.4 ma ?0111111? : 12.8 ma ?1111111? : 25.6 ma technical note 19/41 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BD6095GUl,BD6095GU address 05h < flash led ?torch mode? current setting > address r/w bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 05h w - - - iftled(4) iftled(3) iftled(2) iftled(1) iftled(0) initial value 00h - - - 0 0 0 0 0 bit [7:5] : (not used) bit [4:0] : iftled(4:0) ?torch mode? of ledfl current setting ?00000? : 3.75 ma (initial value) ?00001? : 7.50 ma ?00010? : 11.25 ma ?00011? : 15.00 ma ?00100? : 18.75 ma ?00101? : 22.50 ma ?00110? : 26.25 ma ?00111? : 30.00 ma ?01000? : 33.75 ma ?01001? : 37.50 ma ?01010? : 41.25 ma ?01011? : 45.00 ma ?01100? : 48.75 ma ?01101? : 52.50 ma ?01110? : 56.25 ma ?01111? : 60.00 ma ?10000? : 63.75 ma ?10001? : 67.50 ma ?10010? : 71.25 ma ?10011? : 75.00 ma ?10100? : 78.75 ma ?10101? : 82.50 ma ?10110? : 86.25 ma ?10111? : 90.00 ma ?11000? : 93.75 ma ?11001? : 97.50 ma ?11010? : 101.25 ma ?11011? : 105.00 ma ?11100? : 108.75 ma ?11101? : 112.50 ma ?11110? : 116.25 ma ?11111? : 120.00 ma * led current : 120 x 1/32 ma step ( =3.75 ma step) technical note 20/41 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BD6095GUl,BD6095GU address 06h < flash led ?flash mode? current setting > address r/w bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 06h w - - - iffled(4) iffled(3) iffled(2) iffled(1) iffled(0) initial value 00h - - - 0 0 0 0 0 bit [7:5] : (not used) bit [4:0] : iffled(4:0) ?flash mode? of ledfl current setting ?00000? : 3.75 ma (initial value) ?00001? : 7.50 ma ?00010? : 11.25 ma ?00011? : 15.00 ma ?00100? : 18.75 ma ?00101? : 22.50 ma ?00110? : 26.25 ma ?00111? : 30.00 ma ?01000? : 33.75 ma ?01001? : 37.50 ma ?01010? : 41.25 ma ?01011? : 45.00 ma ?01100? : 48.75 ma ?01101? : 52.50 ma ?01110? : 56.25 ma ?01111? : 60.00 ma ?10000? : 63.75 ma ?10001? : 67.50 ma ?10010? : 71.25 ma ?10011? : 75.00 ma ?10100? : 78.75 ma ?10101? : 82.50 ma ?10110? : 86.25 ma ?10111? : 90.00 ma ?11000? : 93.75 ma ?11001? : 97.50 ma ?11010? : 101.25 ma ?11011? : 105.00 ma ?11100? : 108.75 ma ?11101? : 112.50 ma ?11110? : 116.25 ma ?11111? : 120.00 ma * led current : 120 x 1/32 ma step ( =3.75 ma step) technical note 21/41 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BD6095GUl,BD6095GU address 07h < ldo1 vout control, ldo2 vout control > address r/w bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 07h w ldo2vsel(3)ldo2vsel(2)ldo2vsel(1)ldo2vsel(0)ldo1vsel(3)ldo1vsel(2)ldo1vsel(1)ldo1vsel(0 ) initial value 74h 0 1 1 1 0 1 0 0 bit [7:4] : ldo2vsel(3:0) ldo2 output voltage control ?0000? : 1.20 v ?0001? : 1.30 v ?0010? : 1.50 v ?0011? : 1.60 v ?0100? : 1.80 v ?0101? : 2.20 v ?0110? : 2.40 v ?0111? : 2.50 v (initial value) ?1000? : 2.60 v ?1001? : 2.70 v ?1010? : 2.80 v ?1011? : 2.90 v ?1100? : 3.00 v ?1101? : 3.10 v ?1110? : 3.20 v ?1111? : 3.30 v bit [3:0] : ldo1vsel(3:0) ldo1 output voltage control ?0000? : 1.20 v ?0001? : 1.30 v ?0010? : 1.50 v ?0011? : 1.60 v ?0100? : 1.80 v (initial value) ?0101? : 2.20 v ?0110? : 2.40 v ?0111? : 2.50 v ?1000? : 2.60 v ?1001? : 2.70 v ?1010? : 2.80 v ?1011? : 2.90 v ?1100? : 3.00 v ?1101? : 3.10 v ?1110? : 3.20 v ?1111? : 3.30 v technical note 22/41 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BD6095GUl,BD6095GU address 08h < main current transition > address r/w bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 08h w thl(3) thl(2) thl(1) thl(0) tlh(3) tlh(2) tlh(1) tlh(0) initial value c7h 1 1 0 0 0 1 1 1 bit [7:4] : thl(3:0) main led current down transition per 0.2ma step ?0000? : 0.256 ms ?0001? : 0.512 ms ?0010? : 1.024 ms ?0011? : 2.048 ms ?0100? : 4.096 ms ?0101? : 8.192 ms ?0110? : 16.38 ms ?0111? : 32.77 ms ?1000? : 65.54 ms ?1001? : 131.1 ms ?1010? : 196.6 ms ?1011? : 262.1 ms ?1100? : 327.7 ms (initial value) ?1101? : 393.2 ms ?1110? : 458.8 ms ?1111? : 524.3 ms setting time is counted based on the switching frequency of charge pump. the above value becomes the value of the typ (1mhz) time. refer to ?(9) slope process? of ?the explanation of alc? for detail. bit [3:0] : tlh(3:0) main led current up transition per 0.2ma step ?0000? : 0.256 ms ?0001? : 0.512 ms ?0010? : 1.024 ms ?0011? : 2.048 ms ?0100? : 4.096 ms ?0101? : 8.192 ms ?0110? : 16.38 ms ?0111? : 32.77 ms (initial value) ?1000? : 65.54 ms ?1001? : 131.1 ms ?1010? : 196.6 ms ?1011? : 262.1 ms ?1100? : 327.7 ms ?1101? : 393.2 ms ?1110? : 458.8 ms ?1111? : 524.3 ms setting time is counted based on the switching frequency of charge pump. the above value becomes the value of the typ (1mhz) time. refer to ?(9) slope process? of ?the explanation of alc? for detail. technical note 23/41 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BD6095GUl,BD6095GU address 0bh < alc mode setting > address r/w bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 0bh w adcyc(1) adcyc(0) gain (1) gain(0) stype vsb mdcir sbiason initial value 81h 1 0 0 0 0 0 0 1 bit [7:6] : adcyc(1:0) adc measurement cycle ?00? : 0.52 s ?01? : 1.05 s ?10? : 1.57 s (initial value) ?11? : 2.10 s refer to ?(4) a/d conversion? of ?the explanation of alc? for detail. bit [5:4] : gain(1:0) sensor gain switching function cont rol (this is effective only at stype=?0?.) ?00? : auto change (initial value) ?01? : high ?10? : low ?11? : fixed refer to ?(3) gain control? of ?the explanation of alc? for detail. bit3 : stype ambient light sensor type select (linear/logarithm) ?0? : for linear sensor (initial value) ?1? : for log sensor refer to ?(7) ambient level detection? of ?the explanation of alc? for detail. bit2 : vsb sbias output voltage control ?0? : sbias output voltage 3.0v (initial value) ?1? : sbias output voltage 2.6v refer to ?(2) i/v conversion? of ?the explanation of alc? for detail. bit1 : mdcir led current reset select by mode change ?0? : led current non-reset when mode change (initial value) ?1? : led current reset when mode change refer to ?(10) led current reset when mode change? of ?the explanation of alc? for detail. bit0 : sbiason sbias control (on/off) ?0? : measurement cycle synchronous ?1? : usually on (at alcen=1) (initial value) refer to ?(4) a/d conversion? of ?the explanation of alc? for detail. technical note 24/41 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BD6095GUl,BD6095GU address 0ch < adc data adjustment > address r/w bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 0ch w sofs(3) sofs(2) sofs(1) sofs(0) sgain(3) sgain(2) sgain(1) sgain(0) initial value 00h 0 0 0 0 0 0 0 0 bit [7:4] : sofs(3:0) ad data offset adjustment ?1000? : -8 lsb ?1001? : -7 lsb ?1010? : -6 lsb ?1011? : -5 lsb ?1100? : -4 lsb ?1101? : -3 lsb ?1110? : -2 lsb ?1111? : -1 lsb ?0000? : non-adjust ?0001? : +1 lsb ?0010? : +2 lsb ?0011? : +3 lsb ?0100? : +4 lsb ?0101? : +5 lsb ?0110? : +6 lsb ?0111? : +7 lsb offset adjust is performed to adc data. refer to ?(5) adc data gain/offset adjustment? of ?the explanation of alc? for detail. bit [3:0] : sgain(3:0) ad data gain adjustment ?1000? : reserved ?1001? : reserved ?1010? : -37.50% ?1011? : -31.25% ?1100? : -25.00% ?1101? : -18.75% ?1110? : -12.50% ?1111? : -6.25% ?0000? : non-adjust ?0001? : +6.25% ?0010? : +12.50% ?0011? : +18.75% ?0100? : +25.00% ?0101? : +31.25% ?0110? : +37.50% ?0111? : reserved gain adjust is performed to adc data. the data after adjustment are round off by 8-bit data. refer to ?(5) adc data gain/offset adjustment? of ?the explanation of alc? for detail. technical note 25/41 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BD6095GUl,BD6095GU address 0dh < ambient level (read only) > address r/w bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 0dh r - - - - amb(3) amb(2) amb(1) amb(0) initial value - - - - - - - - - bit [7:4] : (not used) bit [3:0] : amb(3:0) ambient level ?0000? : 0h ?0001? : 1h ?0010? : 2h ?0011? : 3h ?0100? : 4h ?0101? : 5h ?0110? : 6h ?0111? : 7h ?1000? : 8h ?1001? : 9h ?1010? : ah ?1011? : bh ?1100? : ch ?1101? : dh ?1110? : eh ?1111? : fh the data can be read through i 2 c. refer to ?(7) ambient level detection? of ?the explanation of alc? for detail. technical note 26/41 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BD6095GUl,BD6095GU address 0eh~1dh < main current at ambient level 0h~fh > address r/w bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 0eh~1dh w - iu*(6) iu*(5) iu*(4) iu*(3) iu*(2) iu*(1) iu*(0) initial value - refer to after page for initial table. ?*? means 0~f. bit7 : (not used) bit [6:0] : iu*(6:0) main current at ambient level for 0h~fh ?0000000? : 0.2 ma ?1000000? : 13.0 ma ?0000001? : 0.4 ma ?1000001? : 13.2 ma ?0000010? : 0.6 ma ?1000010? : 13.4 ma ?0000011? : 0.8 ma ?1000011? : 13.6 ma ?0000100? : 1.0 ma ?1000100? : 13.8 ma ?0000101? : 1.2 ma ?1000101? : 14.0 ma ?0000110? : 1.4 ma ?1000110? : 14.2 ma ?0000111? : 1.6 ma ?1000111? : 14.4 ma ?0001000? : 1.8 ma ?1001000? : 14.6 ma ?0001001? : 2.0 ma ?1001001? : 14.8 ma ?0001010? : 2.2 ma ?1001010? : 15.0 ma ?0001011? : 2.4 ma ?1001011? : 15.2 ma ?0001100? : 2.6 ma ?1001100? : 15.4 ma ?0001101? : 2.8 ma ?1001101? : 15.6 ma ?0001110? : 3.0 ma ?1001110? : 15.8 ma ?0001111? : 3.2 ma ?1001111? : 16.0 ma ?0010000? : 3.4 ma ?1010000? : 16.2 ma ?0010001? : 3.6 ma ?1010001? : 16.4 ma ?0010010? : 3.8 ma ?1010010? : 16.6 ma ?0010011? : 4.0 ma ?1010011? : 16.8 ma ?0010100? : 4.2 ma ?1010100? : 17.0 ma ?0010101? : 4.4 ma ?1010101? : 17.2 ma ?0010110? : 4.6 ma ?1010110? : 17.4 ma ?0010111? : 4.8 ma ?1010111? : 17.6 ma ?0011000? : 5.0 ma ?1011000? : 17.8 ma ?0011001? : 5.2 ma ?1011001? : 18.0 ma ?0011010? : 5.4 ma ?1011010? : 18.2 ma ?0011011? : 5.6 ma ?1011011? : 18.4 ma ?0011100? : 5.8 ma ?1011100? : 18.6 ma ?0011101? : 6.0 ma ?1011101? : 18.8 ma ?0011110? : 6.2 ma ?1011110? : 19.0 ma ?0011111? : 6.4 ma ?1011111? : 19.2 ma ?0100000? : 6.6 ma ?1100000? : 19.4 ma ?0100001? : 6.8 ma ?1100001? : 19.6 ma ?0100010? : 7.0 ma ?1100010? : 19.8 ma ?0100011? : 7.2 ma ?1100011? : 20.0 ma ?0100100? : 7.4 ma ?1100100? : 20.2 ma ?0100101? : 7.6 ma ?1100101? : 20.4 ma ?0100110? : 7.8 ma ?1100110? : 20.6 ma ?0100111? : 8.0 ma ?1100111? : 20.8 ma ?0101000? : 8.2 ma ?1101000? : 21.0 ma ?0101001? : 8.4 ma ?1101001? : 21.2 ma ?0101010? : 8.6 ma ?1101010? : 21.4 ma ?0101011? : 8.8 ma ?1101011? : 21.6 ma ?0101100? : 9.0 ma ?1101100? : 21.8 ma ?0101101? : 9.2 ma ?1101101? : 22.0 ma ?0101110? : 9.4 ma ?1101110? : 22.2 ma ?0101111? : 9.6 ma ?1101111? : 22.4 ma ?0110000? : 9.8 ma ?1110000? : 22.6 ma ?0110001? : 10.0 ma ?1110001? : 22.8 ma ?0110010? : 10.2 ma ?1110010? : 23.0 ma ?0110011? : 10.4 ma ?1110011? : 23.2 ma ?0110100? : 10.6 ma ?1110100? : 23.4 ma ?0110101? : 10.8 ma ?1110101? : 23.6 ma ?0110110? : 11.0 ma ?1110110? : 23.8 ma ?0110111? : 11.2 ma ?1110111? : 24.0 ma ?0111000? : 11.4 ma ?1111000? : 24.2 ma ?0111001? : 11.6 ma ?1111001? : 24.4 ma ?0111010? : 11.8 ma ?1111010? : 24.6 ma ?0111011? : 12.0 ma ?1111011? : 24.8 ma ?0111100? : 12.2 ma ?1111100? : 25.0 ma ?0111101? : 12.4 ma ?1111101? : 25.2 ma ?0111110? : 12.6 ma ?1111110? : 25.4 ma ?0111111? : 12.8 ma ?1111111? : 25.6 ma technical note 27/41 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BD6095GUl,BD6095GU explanation for operate 1. the explanation of reset there are two kinds of reset, software reset and hardware reset. software reset ? all the registers are initialized by sftrst="1". ? sftrst is an automatically returned to "0". (auto return 0). hardware reset ? it shifts to hardware reset by changing resetb pin ?h? ?l?. ? the condition of all the registers under hardware reset pin is re turned to the initial value, and it stops accepting all addres s. ? it?s possible to release from a state of hardware reset by changing resetb pin ?l? ?h?. ? resetb pin has delay circuit. it doesn?t recognize as hardware reset in ?l? period under 5 s. ? even if resetb=l, at flashcnt=h, flash mode becomes on by minimum setting. reset sequence ? when hardware reset was done dur ing software reset, software reset is c anceled whenhardware reset is canceled. (because the initial value of software reset is ?0?) 2. the explanation of thermal shutdown the blocks which thermal shutdown func tion is effective in the following. charge pump led driver ldo1, ldo2, sbias a thermal shutdown function works in about 190 o c. detection temperature has a hysteresis, and detection release temperature is about 170 o c.(design reference value) 3. the explanation of charge pump for led driver charge pump block is designed for the power supply for led driver. it has the x1.0/x1.33/x1.5/x2.0 mode. it changes to the most suitable mode automatically by vf of led and the battery voltage. it has the mode of x1.33 and it can be higher efficiency than traditional. start charge pump circuit operates when any led turns on. soft start when the start of the charge pump circuit is done, it has the soft start function to prevent a rush current. en (*1) v io vout resetb v bat t vbaton t vbatoff t vioon=min 0.1ms t rstb=min 0.1ms t soft led current t rst=min 0ms t viooff=min 1ms (*1) an en signal in the upper figure means the following; ?en is high? = any led turns on but if ta >tsd, en signal doesn?t become effective. technical note 28/41 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BD6095GUl,BD6095GU charge pump mode transition the transition of boost multiple transits automatically by vf of led and the battery voltage. BD6095GUl/BD6095GU changes the four charge pump movement m ode automatically to realize low consumption power. < mode up > a led terminal voltage is monitored, and the movement mode is changed to 1 1.33, 1.33 1.5 and 1.5 2 automatically when a led terminal voltage is lower than 0.2v (typ). at this time, the maximum output voltage of the charge pump is restricted to 5.1v (typ). < mode down > the rise in the battery voltage, the off control of led lighting, ?main group? led current value and the data writing to the address 04h,05h,06h (led current setting) is monitored, and the movement mode is changed to 2 1.5 1.33 1 automatically. this mode down movement lasts until a mode up movement happens. at flash mode and torch mode, the mode down doesn't happen. the thresholds of rise in a battery voltage are 2.9v, 3.3v, 3.7v and 4.1v (typ). and, as for the off control of le d lighting, it is shown that mleden, sleden, torchen, flashen and flashcnt transited in ?1? ?0?. over voltage protection / over current protection charge pump circuit output (vout) is equipped with the over-voltage protection and the over current protection function. a vout over-voltage detection voltage is about 5.5v(typ). (vout at the time of rise in a voltage) a detection voltage has a hysteresis, and a detection release voltage is about 5.1v(typ). and, when vout output short to ground, input current of the battery terminal is limited by an over current protection function. standby soft all off any led on ta< t tsd vbat>2.3v(typ) cp x1.0 mode after ?vout>1.5v(typ)? detected, 142us(typ) wait x1.0 cp x1.0 mode mode up=?h? mode down=?h? x1.33 cp x1.33 mode mode up=?h? mode down=?h? x1.5 cp x1.5mode 1 mode up=?h? mode down=?h? x2.0 cp x2.0mode all led off reset technical note 29/41 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BD6095GUl,BD6095GU 4. the explanation of led driver led1~led3 led1~led3 are same controlled. these are using for ?main backlight? and we call it ?main group?. current setting: imled(6:0) on/off: mleden (on=1, off=0) led4~led5 led4 and led5 can be independent controlled. t here are attributed to ?main group? or ?sub group?. if these are attributed to ?main group?, these are controlled by same as led1~led3. technical note 30/41 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BD6095GUl,BD6095GU 5. the explanation of alc (auto luminous control) lcd backlight current adjustment is possible in the basis of the data detected by external ambient light sensor. ? extensive selection of the ambient light sensors (photo diode, photo transistor, photo ic(linear/logarithm)) is possible by building adjustment feature of sensor bias, gain adjustment and offset adjustment. ? ambient data is changed into ambient level by digi tal data processing, and it can be read through i 2 c i/f. ? register setting can customize a conversion to led current. (initial value is pre-set.) ? natural dimming of led driver is possible with the adjustment of the current transition speed. adc average logarithmic conv. ambient level detect current conversion slope process sbias gain control output voltage offset correction conversion tab l e slope timer sensor gain control ambient level lcd backlight ssens sbias gc1 gc2 sensor type led* sensor gain correction data correction wpwmin pwm enabling main current setting usually on / intermittent sensor i/f led control mode select main group led driver * wave form in this explanation just shows operat ion image, not shows absolute value precisely. (1) auto luminous control on/off ? alc block can be independent setting on/off. ? it can use only to measure the ambient level. register : alcen register : mleden register : mledmd ? refer to under about the associate alc mode and main led current. alcen mleden mledmd sensor i/f led control mode main led current 0 0 x off ( amb(3:0)=0h ) off off - 0 1 0 on non alc mode imled(6:0) 0 1 1 iu0(6:0) (*1) 1 0 x on off alc mode - 1 1 0 on imled(6:0) 1 1 1 alc mode (*2) (*1) at this mode, because sensor i/f is off, amb(3:0)=0h. so, main led current is selected iu0(6:0). (*2) at this mode, main led current is selected iu0(6:0)~iuf(6:0) it becomes current value corresponding to each brightness. technical note 31/41 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BD6095GUl,BD6095GU (2) i/v conversion ? the bias voltage and external resistance for the i-v conversion (rs) are adjusted with adaptation of sensor characteristic ? the bias voltage is selectable by register setup. register : vsb ?0? : sbias output voltage 3.0v ?1? : sbias output voltage 2.6v rs : sense resistance (a sensor output cu rrent is changed into the voltage value.) sbias : bias power supply terminal for the sensor (3.0v / 2.6v by register setting) ssens : sense voltage input terminal ssens voltage = iout x rs a mbient sensor current (iout) a mbient ssens voltage (=iout x rs) rs is large rs is small sbias a/d sensor ic sbias ssens sgnd vcc gnd iout BD6095GUl rs iout vssens ssens voltage technical note 32/41 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BD6095GUl,BD6095GU (3) gain control ? sensor gain switching function is built in to extend the dynamic range. ? it is controlled by register setup. ? when automatic gain control is off, the gain status can be set up in the manual. register : gain(1:0) ? gc1 and gc2 are outputted corresponding to each gain status. example 1 (use bh1600fvc) example 2 example 3 application example resister values are relative operating mode auto manual auto manual fixed high low high low gain(1:0) setting 00 01 10 00 01 10 11 gain status high low high low high low high low - gc1 output l l l l gc2 output l l l l l : this means that it becomes high with a/d measurement cycle synchronously. (*1) : set up the relative ratio of the resistance in the difference in the brightness change of the high gain mode and the low gain mode carefully. ssens sbias gc1 gc2 sgnd 9.5 (*1) ssens sbias gc1 gc2 sgnd iout gc1 gc2 gnd vcc bh1600 ssens sbias gc1 gc2 sgnd a mbient ssens voltage low gain mode high gain mode a mbient ssens voltage a uto gain mode technical note 33/41 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BD6095GUl,BD6095GU (4) a/d conversion ? the detection of ambient data is done periodically for the low power. ? sbias and adc are turned off except for the ambient measurement. ? the sensor current may be shut in this function, it can possible to decrease the current consumption. ? sbias pin and ssens pin are pull-down in internal when there are off. ? sbias circuit has the two modes. (usually on mode or intermittent mode) register : adcyc(1:0) register : sbiason (5) adc data gain / offset adjustment ? to correct the characteristic dispersion of the sensor, gain and offset adjustment to adc output data is possible. ? they are controlled by register setup. register : sgain(3:0) register : sofs(3:0) < gain adjustment > < offset adjustment > a dc cycle sbias output a dc movement a lcen a mb(3:0) t ad= 16.4ms(typ) a mb(3:0) a dcyc(1:0) t wait= 64ms(typ) when sbiason=1 gc1, gc2 gc1, gc2=00 t oprt= 80.4ms(typ) ad start signal t adone= 1.024ms(typ) 16 times measurement (wait time) (a/d conversion time) (operate time) 16 times a mbient ssens voltage a mbient ssens voltage gain adjustment sgain(3:0) a mbient ssens voltage a mbient ssens voltage a mbient ssens voltage a mbient ssens voltage offset adjustment sofs(3:0) technical note 34/41 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BD6095GUl,BD6095GU (6) average filter ? average filter is built in to rid noise or flicker. ? average is 16 times (7) ambient level detection ? averaged a/d value is converted to ambient level corresponding to gain control and sensor type. ? ambient level is judged to rank of 16 steps by ambient data. ? the type of ambient light sensor can be chosen by register. (linear type sensor / logarithm type sensor) register : stype ?0? : for linear sensor ?1? : for log sensor ? ambient level is output through i 2 c. register : amb(3:0) stype 0 1 gain(1:0) 00 10 01 11 xx gain status low high low high - - ambient level ssens voltage 0h vos0 256 vos0 256 vos0 256 vos0 256 vos17 256 1h vos1 256 vos1 256 vos1 256 vos18 256 vos26 256 2h vos2 256 vos2 256 vos2 256 vos27 256 vos36 256 3h vos3 256 vos4 256 vos3 256 vos4 256 vos3 256 vos4 256 vos37 256 vos47 256 4h vos5 256 vos7 256 vos5 256 vos7 256 vos5 256 vos6 256 vos48 256 vos59 256 5h vos0 256 vos8 256 vos12 256 vos0 256 vos8 256 vos12 256 vos7 256 vos9 256 vos60 256 vos71 256 6h vos1 256 vos13 256 vos21 256 vos1 256 vos13 256 vos21 256 vos10 256 vos13 256 vos72 256 vos83 256 7h vos2 256 vos3 256 vos22 256 vos37 256 vos2 256 vos3 256 vos22 256 vos37 256 vos14 256 vos19 256 vos84 256 vos95 256 8h vos4 256 vos6 256 vos38 256 vos65 256 vos4 256 vos6 256 vos38 256 vos65 256 vos20 256 vos27 256 vos96 256 vos107 256 9h vos7 256 vos11 256 vos66 256 vos113 256 vos7 256 vos11 256 vos66 256 vos113 256 vos28 256 vos38 256 vos108 256 vos119 256 ah vos12 256 vos20 256 vos114 256 vos199 256 vos12 256 vos20 256 vos114 256 vos199 256 vos39 256 vos53 256 vos120 256 vos131 256 bh vos21 256 vos36 256 vos200 256 vos255 256 vos21 256 vos36 256 vos200 256 vos255 256 vos54 256 vos74 256 vos132 256 vos143 256 ch vos37 256 vos64 256 vos37 256 vos64 256 vos75 256 vos104 256 vos144 256 vos155 256 dh vos65 256 vos114 256 vos65 256 vos114 256 vos105 256 vos144 256 vos156 256 vos168 256 eh vos115 256 vos199 256 vos115 256 vos199 256 vos145 256 vos199 256 vos169 256 vos181 256 fh vos200 256 vos255 256 vos200 256 vos255 256 vos200 256 vos255 256 vos182 256 vos255 256 ? this is in case of not adjustments of the gain/offset control. ? in the auto gain control mode, sensor gain changes in gray-colored ambient level. ? ? ? : this means that this zone is not outputted in this mode. technical note 35/41 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BD6095GUl,BD6095GU (8) led current assignment ? led current can be assigned as each of 16 steps of the ambient level. ? setting of a user can do by overwriting, though it prepares for the table setup in advance. register : iu*(6:0) conversion table (initial value) ambient level setting data current value ambient level setting data current value 0h 11h 3.6ma 8h 48h 14.6ma 1h 13h 4.0ma 9h 56h 17.4ma 2h 15h 4.4ma ah 5fh 19.2ma 3h 18h 5.0ma bh 63h 20.0ma 4h 1eh 6.2ma ch 63h 20.0ma 5h 25h 7.6ma dh 63h 20.0ma 6h 2fh 9.6ma eh 63h 20.0ma 7h 3bh 12.0ma fh 63h 20.0ma (9) slope process ? slope process is given to led current to dim naturally. ? led current changes in the 256step gradation in sloping. ? up(dark bright),down(bright dark) led current transition speed are set individually. register : thl(3:0) register : tlh(3:0) ? main led current changes as follows at the time as the slope. tlh (thl) is setup of time of the current step 2/256. a mbient level main led current conversion table can be changed zoom time main led current current data which is set led current up/down transition speed is set individually tlh(3:0) thl (3:0) time main led current tlh(3:0) 25.6ma 256 tlh thl =0.1ma technical note 36/41 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BD6095GUl,BD6095GU (10) led current reset when mode change ? when mode is changed (alc ? non alc), it can select the way to sloping. register : mdcir ?0? : led current non-reset when mode change ?1? : led current reset when mode change (11) current adjustment ? when it is permitted by the register setting, pwm drive by the external terminal (wpwmin) is possible. register : wpwmen ? it is suitable for the intensity correction by external control, because pwm based on main led current of register setup or alc control. wpwmen wpwmin (external input) back light current 0 l on pwm input invalid 0 h on 1 l forced off pwm input valid 1 h on current on is depending on ?mleden?. mleden dc/dc output w p w m in in p u t wpwmen led current in te rn a l s o ft-s ta rt t im e it c a n b e in p u tte d w p w m in b e fo re m l e d e n = 1 . it c a n b e s e t w p w m e n = 1 b e fo re m l e d e n = 1 . p w m m o ve m e n t is e ffe c tive a t th e tim e l e d c u rre n t ris e u p . pw m high pulse width m ust be m ore than 80s. time main led current nonalc mode mdcir= ?1? 0m a nonalc mode alc mode imled(6:0) imled(6:0) iu*(6:0) time main led current mdcir= ?0? 0m a nonalc mode nonalc mode alc mode imled(6:0) imled(6:0) iu*(6:0) technical note 37/41 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BD6095GUl,BD6095GU 6. the explanation of i/o when the resetb pin is low, the input buffers (sda and scl) are disabling for the low consumption power. level shift vbat scl (sda) resetb logic vio en resetb=l, output ?h? 7. the explanation of the start of ldo1~ldo2 it must start as follows. technical note 38/41 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BD6095GUl,BD6095GU pcb pattern of the power dissipation measuring board 1 st layer(component) 2 nd layer 3 rd layer 4 th layer 5 th layer 6 th layer 7 th layer 8 th layer(solder) technical note 39/41 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BD6095GUl,BD6095GU notes for use (1) absolute maximum ratings an excess in the absolute maximum ratings, such as supply voltage, temperature range of operating conditions, etc., can break down devices, thus making impossible to identify breaki ng mode such as a short circuit or an open circuit. if any special mode exceeding the absolute maximum ratings is assumed, consideration should be given to take physical safety measures including the use of fuses, etc. (2) power supply and ground line design pcb pattern to provide low impedance for the wiring between the power supply and the ground lines. pay attention to the interference by common impedance of layout pattern when there are plural power supplies and ground lines. especially, when there are ground pattern for small signal and ground pattern for large current included the external circuits, please separate each ground pa ttern. furthermore, for all power supply pins to ics, mount a capacitor between the power supply and the ground pin. at the same time, in order to use a capacitor, thoroughly check to be sure the characteristics of the capacitor to be used present no problem including the occurrence of capacity dropout at a low temperature, thus determining the constant. (3) ground voltage make setting of the potential of the ground pin so that it will be maintained at the minimum in any operating state. furthermore, check to be sure no pins are at a potential lower than the ground voltage including an actual electric transient. (4) short circuit between pins and erroneous mounting in order to mount ics on a set pcb, pay thorough attention to the direction and offset of the ics. erroneous mounting can break down the ics. furthermore, if a short circuit occurs due to foreign matters entering between pins or between the pin and the power supply or the ground pin, the ics can break down. (5) operation in strong electromagnetic field be noted that using ics in the strong electromagnetic field can malfunction them. (6) input pins in terms of the construction of ic, parasitic elements are inevitably formed in relation to potential. the operation of the parasitic element can cause interference with circuit operation, thus resulting in a malfunction and then breakdown of the input pin. therefore, pay thorough attention not to handle the input pins, such as to apply to the input pins a voltage lower than the ground respectively, so that any parasitic element will operate. furthermore, do not apply a voltage to the input pins when no power supply voltage is applied to the ic. in addition, even if the power supply voltage is applied, apply to the input pins a voltage lower than the power supply voltage or within the guaranteed value of electrical characteristics. (7) external capacitor in order to use a ceramic capacitor as the external capacitor, determine the constant with consideration given to a degradation in the nominal capacitance due to dc bias and changes in the capacitance due to temperature, etc. (8) thermal shutdown circuit (tsd) this lsi builds in a thermal shutdown (tsd) circuit. when ju nction temperatures become detection temperature or higher, the thermal shutdown circuit operates and turns a switch off. the thermal shutdown circuit, which is aimed at isolating the lsi from thermal runaway as much as possible, is not ai med at the protection or guarantee of the lsi. therefore, do not continuously use the lsi with this circuit operating or use the lsi assuming its operation. (9) thermal design perform thermal design in which there are adequate margins by taking into account the permissible dissipation (pd) in actual states of use. (10) ldo use each output of ldo by the independence. don?t use under the condition that each output is short-circuited because it has the possibility that an operation becomes unstable. (11) about the pin for the test, the un-use pin prevent a problem from being in the pin for the test and the un-use pin under the state of actual use. please refer to a function manual and an application notebook. and, as for the pin that doesn't specially have an explanation, ask our company person in charge. (12) about the rush current for ics with more than one power supply, it is possible that rush current may flow instantaneously due to the internal powering sequence and delays. therefore, give special consideration to power coupling capacitance, power wiring, width of ground wiring, and routing of wiring. (13) about the function description or application note or more. the function description and the application notebook are the design materials to design a set. so, the contents of the materials aren't always guaranteed. please design application by having fully examination and evaluation include the external elements. technical note 40/41 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BD6095GUl,BD6095GU power dissipation (on the rohm?s standard board) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 0 25 50 75 100 125 150 ta power dissipation pd w) 1500mw information of the rohm?s standard board material : glass-epoxy size : refer to after page. technical note 41/41 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BD6095GUl,BD6095GU ordering part number b d 6 0 9 5 gu l - e 2 part no. part no. 6095 package gul : vcsp50l3 gu : vcsp85h3 packaging and forming specification e2: embossed tape and reel ? order quantity needs to be multiple of the minimum quantity. r1120 a www.rohm.com ? 2011 rohm co., ltd. all rights reserved. notice rohm customer support system http://www.rohm.com/contact/ thank you for your accessing to rohm product informations. more detail product informations and catalogs are available, please contact us. notes no copying or reproduction of this document, in part or in whole, is permitted without the consent of rohm co.,ltd. the content specified herein is subject to change for improvement without notice. the content specified herein is for the purpose of introducing rohm's products (hereinafter "products"). if you wish to use any such product, please be sure to refer to the specifications, which can be obtained from rohm upon request. examples of application circuits, circuit constants and any other information contained herein illustrate the standard usage and operations of the products. the peripheral conditions must be taken into account when designing circuits for mass production. great care was taken in ensuring the accuracy of the information specified in this document. however, should you incur any damage arising from any inaccuracy or misprint of such information, rohm shall bear no responsibility for such damage. the technical information specified herein is intended only to show the typical functions of and examples of application circuits for the produc ts. rohm does not grant you, explicitly or implicitly, any license to use or exercise intellectual property or other rights held by rohm and other parties. rohm shall bear no responsibility whatsoever for any dispute arising from the use of such technical information. the products specified in this document are intended to be used with general-use electronic equipment or devices (such as audio visual equipment, office-automation equipment, commu- nication devices, electronic appliances and amusement devices). the products specified in this document are not designed to be radiation tolerant. while rohm always makes efforts to enhance the quality and reliability of its products, a product may fail or malfunction for a variety of reasons. please be sure to implement in your equipment using the products safety measures to guard against the possibility of physical injury, fire or any other damage caused in the event of the failure of any product, such as derating, redundancy, fire control and fail-safe designs. rohm shall bear no responsibility whatsoever for your use of any product outside of the prescribed scope or not in accordance with the instruction manual. the products are not designed or manufactured to be used with any equipment, device or system which requires an extremely high level of reliability the failure or malfunction of which may result in a direct threat to human life or create a risk of human injury (such as a medical instrument, transportation equipment, aerospace machinery, nuclear-reactor controller, fuel- controller or other safety device). rohm shall bear no responsibility in any way for use of any of the products for the above special purposes. if a product is intended to be used for any such special purpose, please contact a rohm sales representative before purchasing. if you intend to export or ship overseas any product or technology specified herein that may be controlled under the foreign exchange and the foreign trade law, you will be required to obtain a license or permit under the law. |
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