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technical note system lens driver series for mobile phone cameras parallel interface type lens drivers for voice coil motor bd6883gul, bh6453gul bd6886gul, bd6369gul description the bd6883gul, and the bh6453gul motor driver provide 1 const ant-current driver half-bridg e, and 1 constant-voltage driver half-bridge channel. the bd6886g ul, and the bd6369gul motor driver provid e 1 constant-voltage driver h-bridge channel. these lens drivers are offered in an ultra-small functional lens system for us e in an auto focus system using a voice coil motor. features 1) bd6883gul characteristics 1) ultra-small chip size package; 1.1mm 1.6mm 0.55mm 2) low on-resistance power cmos output; on high side pmos typ.0.65 ? , on low side nmos typ.0.40 ? 3) esd resistance (human body model); 8kv 4) built-in 5% high-precision constant-voltage driver (phase compensation capacitor-free design) 5) built-in uvlo (under voltage locked out: uvlo) 6) built-in tsd (thermal shut down) circuit 7) standby current consumption: 0a typ. 2) bh6453gul characteristics 1) ultra-small chip size package; 1.5mm 0.9mm 0.55mm 2) low on-resistance power cmos output; on high side pmos typ.1.2 ? , on low side nmos typ.0.4 ? 3) esd resistance (human body model); 8kv 4) built in resistor for output current det ect (phase compensation capacitor-free design) 5) 1.8v can be put into each control input terminal 6) built-in uvlo (under voltage locked out: uvlo) 7) built-in tsd (thermal shut down) circuit 8) standby current consumption: 0a typ. 3) bd6886gul, bd6369gul characteristics 1) ultra-small chip size package; 2.1mm 2.1mm 0.55mm 2) low on-resistance power cmos output; on high and low sides in total typ.0.80 ? 3) esd resistance (human body model); 8kv 4) built-in 5% high-precision constant-voltage driver (phase compensation capacitor-free design) 5) control input m ode selection function 6) built-in uvlo (under voltage locked out: uvlo) 7) built-in tsd (thermal shut down) circuit 8) standby current consumption: 0a typ. june 2008
2/16 ambient temperature ta [ c ] power dissi p ation ta [ c ] power dissi p ation ta [ c ] power dissi p ation ta [ c ] power dissi p ation absolute maximum ratings (ta=+25c) limit parameter symb ol bd6883gul bh6453gul bd6886gul bd6369gul unit power supply voltage vcc -0.5 to +6.5 -0.5 to +4.5 -0.5 to +6 .5 -0.5 to +6.5 v motor power supply voltage vm - - -0.5 to +6.5 -0 .5 to +6.5 v control input voltage vin -0.5 to vcc+0.5 -0.5 to vcc+0.5 -0.5 to vcc+0.5 -0.5 to vcc+0.5 v input voltage for constant-voltage setting vlim -0.5 to vcc+0.5 - -0.5 to vm+0.5 -0.5 to vm+0.5 v input voltage for constant-current setting clim - -0.5 to vcc+0.5 - - v power dissipation pd 510 1 430 2 730 3 730 3 mw operating temperature range topr -25 to +85 -25 to +85 -25 to +85 -25 to +85 c junction temperature tjmax +150 +125 +150 +150 c storage temperature range tstg -55 to +150 -55 to +125 -55 to +150 -55 to +150 c h-bridge output current iout -200 to +200 4 -300 to +300 5 -200 to +200 4 -500 to +500 4 ma 1 reduced by 4.08mw/c over 25c, when mounted on a glass epoxy board (50mm 58mm 1.75mm; 8 layers). 2 reduced by 4.30mw/c over 25c, when mounted on a glass epoxy board (50mm 58mm 1.75mm; 8 layers). 3 reduced by 5.84mw/c over 25c, when mounted on a glass epoxy board (50mm 58mm 1.75mm; 8 layers). 4 must not exceed pd, aso, or tjmax of 150c. 5 must not exceed pd, aso, or tjmax of 125c. operating conditions limit unit parameter symbol bd6883gul bh6453gul bd6886gul bd6369gul power supply voltage vcc +2.5 to +5.5 +2.3 to +3.6 +2.5 to +5.5 +2.5 to +5.5 v motor power supply voltage vm - - +2.5 to +5.5 +2.5 to +5.5 v control input voltage vin 0 to vcc 0 to vcc 0 to vcc 0 to vcc v input voltage for constant-voltage setting vlim 0 to vcc - 0 to vm 0 to vm v input voltage for constant-current setting clim - 0 to vcc - - v h-bridge output current iout -150 to +150 6 -200 to +200 6 -150 to +150 6 -400 +400 6 ma 6 must not exceed pd or aso. power dissipation reduction fig.1 bd6883gul power dissipation reduction fig.2 bh6453gul power dissipation reduction fig.3 bd6886gul power dissipation reduction fig.4 bd6369gul power dissipation reduction
3/16 electrical characteristics 1) bd6883gul electrical characteristics (unl ess otherwise specified, ta=25c, vcc=3.0v) limit parameter symbol min. typ. max. unit conditions overall circuit current during standby operation iccst - 0 10 a ps=0v circuit current icc - 0.9 1.4 ma ps=3v, vlim=3v with no signal and load control input (vin=in, ps) high level input voltage vinh 2.0 - vcc v low level input voltage vinl 0 - 0.7 v high level input current iinh 15 30 60 a vinh=3v, pull-down resistor typ.100k low level input current iinl -1 0 - a vinl=0v input for constant-voltage setting input current ivlim -1.5 -0.5 - a vlim=0v uvlo uvlo voltage vuvlo 1.6 - 2.4 v constant-voltage drive block pmos output on-resistance ronp - 0.65 0.80 ? io=-150ma nmos output on-resistance ronn - 0.40 0.60 ? io=+150ma output h voltage voh 1.9 vlim 2.0 vlim 2.1 vlim v vlim=1v, 10 ? load output ac characteristic turn-on time ton - 1.5 5 s io=-150ma, 10 ? load turn-off time toff - 0.1 2 s io=-150ma, 10 ? load rise time tr - 1.5 8 s io=-150ma, 10 ? load fall time tf - 0.05 1 s io=-150ma, 10 ? load fig.5 bd6883gul i/o switching waveform (the direction flowing into ic is plus) 100% 0% 0% -100% ton toff tr tf 50% 50% -50% -50% -10% -90% -90% -10% motor current vin
4/16 2) bh6453gul electrical characteristics (unl ess otherwise specified, ta=25c, vcc=3.0v) limit parameter symbol min. typ. max. unit conditions overall circuit current during standby operation iccst - 0 5 a ps=0v circuit current icc - 0.9 1.3 ma ps=3v, in=3v, no load control input (vin=in, ps) high level input voltage vinh 1.5 - vcc v low level input voltage vinl 0 - 0.5 v high level input current iinh 15 30 60 a vinh=3v, pull down resistance typ.100k ? low level input current iinl -1 0 - a vinl=0v uvlo uvlo voltage vuvlo 1.6 - 2.2 v constant-current drive block pmos output on-resistance ronp - 1.2 1.5 ? io=-200ma nmos output on-resistance ronn - 0.35 0.50 ? io=+200ma offset current iofs 0 1 5 ma clim=0v output current iout 180 200 220 ma clim=0.8v, rl=10 ? drive system of constant-current i sink : vcc-out current clim: vcc-out current setting voltage r rnf : vcc-out current detection resistance i sink [a]= clim[v] 2 2.0(typ.)[ ? ]
5/16 3) bd6886gul, bd6369gul electrical characteristics (unl ess otherwise specified, ta =25c, vcc=3.0v, vm=5.0v) limit parameter symbol min typ max unit conditions overall circuit current during standby operation iccst - 0 10 a ps=0v circuit current 1 icc - 0.9 1.4 ma ps=3v, with no signal circuit current 2 im - 0.4 0.65 ma ps=3v, vlim=5v, no load control input (vin=ina, inb, sel, ps) high-level input voltage vinh 2.0 - vcc v low-level input voltage vinl 0 - 0.7 v high-level input current iinh 15 30 60 a vinh=3v low-level input current iinl -1 0 - a vinl=0v pull-down resistor rin 50 100 200 k ? input for constant-voltage setting input current ivlim -1.5 -0.5 - a vlim=0v uvlo uvlo voltage vuvlo 1.6 - 2.4 v constant-voltage drive block output on-resistance ron - 0.80 1.20 ? io= 150ma on high and low sides in total output high-level voltage voh 1.9 vlim 2.0 vlim 2.1 vlim v vlim=1v with 10 ? load output ac characteristic turn-on time ton - 1.5 5 s io= 150ma with 10 ? load turn-off time toff - 0.1 2 s io= 150ma with 10 ? load rise time tr - 2 8 s io= 150ma with 10 ? load fall time tf - 0.05 1 s io= 150ma with 10 ? load fig.6 bd6886gul, bd6369gul i/o switching waveform 100% 0% 100% 0% -100% ton ton toff toff tf tr tf tr 50% 50% 50% 50% -50% -50% 90% 10% -10% -90% -90% -10% 10% 90% motor current vin
6/16 electrical characteristic diagrams 0 100 200 300 400 500 0.01.0 2.03.04.05.0 6.07.0 clim voltage, vclim [v] out current, iout [ma] 0.0 1.0 2.0 3.0 4.0 5.0 0 0.1 0.2 0.3 0.4 0.5 output current, io [a] output voltage, voutl [v] -1.0 -0.9 -0.8 -0.7 -0.6 -0.5 -0.4 -0.3 -0.2 -0.1 0.0 0 0.1 0.2 0.3 0.4 0.5 output current, io [a] output voltage, vouth [v] 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 supply voltage, vcc [v] circuit current, icc [ma] 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 supply voltage, vcc [v] circuit current, icc [ma] 0.0 0.1 0.2 0.3 0.4 0.5 0 0.1 0.2 0.3 0.4 0.5 output current, io [a] output voltage, voutl [v] 0.0 0.1 0.2 0.3 0.4 0.5 0 0.1 0.2 0.3 0.4 0.5 output current, io [a] output voltage, voutl [v] -1.0 -0.9 -0.8 -0.7 -0.6 -0.5 -0.4 -0.3 -0.2 -0.1 0.0 0 0.1 0.2 0.3 0.4 0.5 output current, io [a] output voltage, vouth [v] 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 vlim voltage [v] out voltage, voh [v] 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 vlim voltage [v] out voltage, voh [v] -2.0 0.0 2.0 4.0 6.0 8.0 10.0 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 supply voltage, vcc [v] standby current, icc [ a] -1.0 -0.9 -0.8 -0.7 -0.6 -0.5 -0.4 -0.3 -0.2 -0.1 0.0 0 0.1 0.2 0.3 0.4 0.5 output current, io [a] output voltage, vouth [v] fig.8 circuit current (bd6883gul/bd6886gul/bd6369gul) bd6883gul / bd6886gul / bd6369gul top 85 middle 25 lower -25 op. range (2.5v 5.5v) fig.9 circuit current (bh6453gul) bh6453gul op. range (2.3v 3.6v) top 85 middle 25 lower -25 bd6883gul top 85 middle 25 lower -25 vm=vcc=3v op. range (0 150ma) fig.10 nmos output voltage (bd6883gul) bd6883gul op. range (0 150ma) fig.13 pmos output voltage (bd6883gul) top -2 5 middle 25 lower 85 vm=vcc=3v bd6886gul / bd6369gul top 85 middle 25 lower -25 vm=5v vcc=3v fig.11 nmos output voltage (bd6886gul / bd6369gul) bd6886gul / bd6369gul fig.14 pmos output voltage (bd6886gul / bd6369gul) top 85 middle 25 lower -25 vm=5v vcc=3v bh6453gul fig.12 nmos output voltage (bh6453gul) bh6453gul op. range (0 200ma) fig.15 pmos output voltage (bh6453gul) top -2 5 middle 25 lower 85 vm=vcc=3v fig.18 current limit output voltage (bh6453gul) bh6453gul top -2 5 middle 25 lower 85 vm=vcc=3v fig.17 output high-level voltage (bd6886gul / bd6369gul) bd6886gul / bd6369gul op. range (0 vm) top -2 5 middle 25 lower 85 vm=5v vcc=3v bd6883gul fig.16 output high-level voltage (bd6883gul) top -2 5 middle 25 lower 85 vm=vcc=3v op. range (0 vcc) all series fig.7 standby current all series top 85 middle 25 lower -25 top 85 middle 25 lower -25 vm=vcc=3v op. range (0 200ma) op. range (0 vcc) op. range (0~150ma) (bd6886gul) op. range (0~150ma) (bd6886gul) op. range (0~400ma) (bd6369gul) op. range (0~400ma) (bd6369gul) op. range (2.3v 3.6 v) (bh6453gul) op. range (2.5v 5.5v) (bd6883gul, bd6886gul, bd6369gul)
7/16 block diagram, application circuit diagram, pin arrangement, pin function table 1) bd6883gul block diagram, application circui t diagram, pin arrangement, pin function table fig.19 bd6883gul block diagram, application circuit diagram 1 2 ps in vcc vlim c out gnd fig.20 bd6883gul pin arrangement (top view) bd6883gul pin function table no. pin name function no. pin name function 1a ps power-saving pin 2b vlim output high-level voltage setting pin 2a in control input pin 1c out half-bridge output pin 1b vcc power supply pin 2c gnd ground pin a b logic in out pre driver bandgap ps power save i source vcc 0.1 10uf tsd & uvlo gnd 2 vcc vlim power-saving h: active l: standby motor control input 1a 1b 2b 2c 1c 2a bypass filter capacitor for power supply input. see. p.14/16. 0.5ch constant-voltage output pins. output h voltage. out[v]=2 vlim[v] setting for constant-voltage input terminal in addition to the dc input, pwm signal drive is also possible using filter components. see. p.11/16
8/16 2) bh6453gul block diagram, application circui t diagram, pin arrangement, pin function table fig.21 bh6453gul block diagram, application circuit diagram 1 2 3 in clim gnd ps vcc out fig.22 bh6453gul pin arrangement (top view) bh6453gul pin function table no. pin name function no. pin name function 1a in control input pin 1b ps power-saving pin 2a clim output current setting pin 2b vcc power supply pin 3a gnd ground pin 3b out half-bridge output pin power-saving h: active l: standby motor control input bypass filter capacitor for power supply input. see. p.14/16. 0.5ch constant-current output pins. iout[ma] = clim[v] / (2 2(typ)[ ]) bandgap ps power save vcc 0.1 10uf tsd & uvlo clim out pre driver logic in i sink gnd b1 a1 a2 v/i converter rnf=2.0 vcc vcc a b setting for constant-current input terminal in addition to the dc input, pwm signal drive is also possible using filter components. see. p.11/16
9/16 3) bd6886gul, bd6369gul block diagram, application ci rcuit diagram, pin arrangement, pin function table fig.23 bd6886gul, bd6369gul block diagram, application circuit diagram 1 2 3 4 n.c. outa ps n.c. vm index post inb ina pgnd vlim sel vcc n.c. outb gnd n.c. fig.24 bd6886gul, bd6369gul pin arrangement (top view) bd6886gul, bd6369gul pin function table no. pin name function no. pin name function 1a n.c. n.c. 1c pgnd motor ground pin 2a outa h-bridge output pin a 2c vlim output high-level voltage setting pin 3a ps power-saving pin 3c sel control input mode selection pin 4a n.c. n.c. 4c vcc power supply pin 1b vm motor power supply pin 1d n.c. n.c. 2b 2d outb h-bridge output pin b 3b inb control input pin b 3d gnd ground pin 4b ina control input pin a 4d n.c. n.c. a b c d sel bandgap ps power save vcc 0.1 10uf tsd & uvlo vlim outa 0.1 10uf vm pgnd 2 outb h bridge level shift & pre driver logic ina inb i out gnd power-saving h: active l: standby control input mode selection 2a 3a 1b 3b 4b 1c 2c 3c 4c 2d 3d motor control input bypass filter capacitor for power supply input. see. p.14/16. 1ch constant-voltage output pins. output h voltage. out[v]=2 vlim[v] setting for constant-voltage input terminal in addition to the dc input, pwm signal drive is also possible using filter components. see. p.11/16 bypass filter capacitor for power supply input. see. p.14/16.
10/16 function explanation 1) power-saving function (all series) when the l voltage is applied the ps pin, the ic?s inside circ uit stop, and when 0v applied, the circuit current became 0a(typ.), especially. when the ic drive, serial input while the ps pin applied h vo ltage. (see the electrical char acteristics; p.3, 4, 5/16) 2) control input pin in pin (bd6883gul, bh6453gul) the in pin is used to program and control the motor drive modes. (see the electrical characte ristics; p3, 4/16, and the i/o truth table; p12/16) ina, inb, sel pins (bd6886gul, bd6369gul) the ina and inb are used to program and control the motor drive modes. when the l voltage is applied to the sel pin, the i/o logic can be set to en (enable)/in mode, and when the h voltage is applie d to the one, the i/o logic can be set to in/in mode. (see the electric al characteristics; p5/16, and the i/o truth table; p12/16) 3) h-bridge and half-bridge on the output stage (all series) specify maximum current applied to the h-bridge and half-bridge wi thin the operating range, in consideration of power dissipati on. (see the operating conditions; p.2/16) 4) drive system of linear constant-voltage h-bridge (bd6883gul, bd6886gul, and bd6369gul) to set up the output h voltage, when the voltage input to the vlim pin, the output h voltage is two times as high as the voltag e. bd6883gul ????? bd6886gul, bd6369gul ????? for example, the output voltage is 2.0v 5%, if 1.0v is applied to the vlim pin. if the vlim pin is shorted to the vm pin (or the same voltage level as the vm is applied), you can be used as a full-on drive h-bridge. 5) drive system of linear constant-current h-bridge (bh6453gul) to detect the output current and the output current settings the bh6453gul built in resistor for output current detect. the outpu t current is kept constant by comparing it with the clim vo ltage. in addition, impress a highly accurate voltage form the outside of ic to the clim terminal, when you do the output current sett ing accuracy or more good. ????? if the clim pin applied 0.8v, output current is 200ma 10%. the output h voltage voh [v] = 2.0 vlim [v] (when vlim [v] , output h voltage is about vm voltage) the output h voltage voh [v] = 2.0 vlim [v] (when vlim [v] , output h voltage is about vcc voltage) output current i sink [a] = clim [v] 2 2(typ) [ ? ] vcc [v] 2 vm [v] 2
11/16 r ina //r inb =3.2[k ] v pwm [v]= v max [v] on duty[%] r ina =2.75r inb vlim=1.0[v]=v lim = 3[v] 50[%] r inb r ina +r inb clim=0.4[v]=v lim = 3[v] 50[%] r inb r ina +r inb 7) setting of pwm signal input vlim and clim terminals (all series) it is also possible to compose filters outside the ic, change an input voltage for output voltage and output current setting te rminals such as vlim and clim terminals by the duty control using an pwm signal, etc., and use them as set values for control. in this case, however, ensure the smoothing of the signals, heeding the constant number of the low-pass filter as stated below. a cutoff frequency f c (-3db attenuation frequency) of the low-pass filter in fig25 is calculated by t he formula mentioned below. ????? set the cutoff frequency f c at 1/100 or below of the pwm frequency f pwm . for example, if the cutoff frequency f c is set at 1/100 of f pwm when the pwm frequency f pwm =50[khz], according to the formula above: ????? when c in =0.1[ f], according to the formula above: ????? where, an effective value of pwm signal as a dc current, according to crest values v max and on duty [%] = is as follows: ????? an actual voltage v lim input to terminals that specify output current and voltages, such as vlim and clim terminals is as follows according to resistance potential division of r ina and r inb : ????? for example, when an pwm signal with crest values v max =3[v] and duty [%]=5[%] is input, a v lim value according to the formula above is: ????? bd6883gul, bd6886gul, and bd6369gul where, to specify an output voltage voh=2[v], a value vlim=1.0[v ] according to the formula in the previous page. and then, according to the formula above, vlim=1.0[v]. therefore, r ina =0.5r inb ????? according to and , r ina =4.8k , r inb =9.6k . bh6453gul where, to specify an output current i sink =100[ma], the following formula is derived acco rding to the formula in the previous page , clim=0.4[v], and according to the formula above : ?????? according to and ? : r ina =11.9k , r inb =4.3k fig.25 example pwm signal input cutoff frequency f c [hz] = [hz] 1 2 c in (r ina //r inb ) cutoff frequency f c [hz] = 1 2 c in (r ina //r inb ) = f pwm = [hz] 1 100 50 10 3 100 v lim [v]= v pwm [v] r inb r ina +r inb on time on time+ off time c in r ina r inb output voltage / constant current voltage terminals f pwm v pwm v max v lim vlim / clim v lim [v]= 3[v] 50[%] r inb r ina +r inb
12/16 i/o truth table bd6883gul i/o truth table input output mode ps in out output mode l l sink - h h h source - l x z 7 standby l: low, h: high, x: don?t care, z: hi impedance sink is a direction of current flowing into the driver, and source is a direction of current flowing out the driver. when it is sink, which drive full on. 7 z at the constant-voltage driver output l voltage for connect feedback resistance (20k ? typ.) for output h voltage setti ng between out pin and gnd. but output power mos is off condition. bh6453gul i/o truth table input output mode ps in out output mode h l sink - h l h source - l x z standby l: low, h: high, x: don?t care, z: hi impedance sink is a direction of current flowing into the driver, and source is a direction of current flowing out the driver. when it is source, which drive full on. bd6886gul, bd6369gul i/o truth table input output mode ps sel ina inb outa outb output mode l x z 7 z 7 standby h l h l forward rotation en/in l h h l h reverse rotation l l l l brake l h l h reverse rotation h l h l forward rotation in/in h h h h z 8 z 8 standby - l x x x z 8 z 8 standby l: low, h: high, x: don?t care, z: hi impedance at forward rotation, current flows from outa to outb. at reverse rotation, current flows from outb to outa. 8 z at the constant-voltage driver output l voltage for connect feedback resistance (20k ? typ.) for output h voltage setti ng between out pin and gnd. but output power mos is off condition.
13/16 in out, gnd clim ps vcc 140 k 100k 10k in 60k 140k 25k ps 75k vcc vcc 1k clim out gnd vcc i/o circuit diagram ps, in out, gnd vlim vlim vcc 1k 10k out gnd vcc vcc 100k 10k ps in fig.26 bd6883gul i/o circuit diagram (r esistance values are typical ones. fig.27 bh6453gul i/o circuit diagram (r esistance values are typical ones. fig.28 bd6886gul, bd6369gul i/o circuit diagram (resistance values are typical ones.) ps, ina, inb, sel vm, outa, outb, pgnd vm pgnd outa outb vcc 100k 10k ps ina inb sel vlim vlim vcc 1k 10k
14/16 operation notes 1) absolute maximum ratings use of the ic in excess of absolute maximum ratings, such as the applied voltage (vcc, vm) or operating temperature range (topr ), may result in ic damage. assumptions should not be made regardi ng the state of the ic (short mode or open mode) when such damage is suffered. a physical safety measure, such as a fuse, should be implem ented when using the ic at times where the absolute maximum ratings may be exceeded. 2) storage temperature range (tstg) as long as the ic is kept within this range, there should be no problems in the ic?s performance. conversely, extreme temperatu re changes may result in poor ic performance, even if the changes are within the above range. 3) power supply and wiring be sure to connect the power terminals outside the ic. do not l eave them open. because a return current is generated by a count er electromotive force of the motor, take necessary measures such as putting a capa citor between the power source and the ground as a passageway for t he regenerative current. be sure to connect a capacitor of proper capacitance (0 .1f to 10f) between the power source and the ground at the fo ot of the ic, and ensure that there is no problem in properties of electrolytic capa citors such as decrease in capacitance at low temperatures. w hen the connected power source does not have enough current absorbing capability, there is a possibility that the voltage of the power source line incr eases by the regenerative current an exceeds the absolute maximum rating of this product and the peripheral circuits. therefore, be sure to take physical safety measures such as putting a zener diode for a voltage clamp between the power source an the ground. 4) ground terminal and wiring the potential at gnd terminals should be made the lowest under any operating conditions. ensure that there are no terminals whe re the potentials are below the potential at gnd terminals, including the transient phenomena. the motor ground terminals pgnd, and the small signal ground terminal gnd are not interconnected with one another inside the ic. it is recommended that you should isolate the large-current rnf pattern and pgnd pattern from the small-signal gnd pattern, and should establish a one-point groun ding at a reference point of the set, to avoid fluctuation of small-signal gnd voltages caused by voltage changes due to pattern wire resistance s and large currents. also prevent the voltage variation of th e ground wiring patterns of external components. use short and thick power source and ground wirings to ensure low impedance. 5) thermal design use a proper thermal design that allows for a sufficient margin of the power dissipation (pd) at actual operating conditions. 6) pin short and wrong direction assembly of the device. use caution when positioning the ic for mounting on printed circuit boards. the ic may be damaged if there is any connection er ror or if positive and ground power supply terminals are reversed. the ic may also be dam aged if pins are shorted together or are shorted to other cir cuit?s power lines. 7) avoiding strong magnetic field malfunction may occur if the ic is used around a strong magnetic field. 8) aso ensure that the output transistors of the motor driver are no t driven under excess conditions of the absolute maximum ratings a nd aso. 9) tsd (thermal shut down) circuit if the junction temperature (tjmax) reache s 175c (but the bh6453gul is 150c), the tsd circuit will operate, and the coil outp ut circuit of the motor will open. there is a temperature hysterics of approximately 25c (but the bh6453gul is 20c). the tsd circuit is designed only to s hut off the ic in order to prevent runaway thermal operation. it is not designed to protec t the ic or guarantee its operati on. the performance of the i c?s characteristics is not guaranteed and it is recommended that the device is replaced after the tsd is activated. 10) testing an application board when testing the ic on an application board, connecting a capaci tor to a pin with low impedance subjects the ic to stress. alwa ys discharge capacitors after each process or step. always turn the ic's power supply of f before connecting it to, or removing it from a jig or fixture , during the inspection process. ground the ic during assembly steps as an antistatic measure. use similar precaution when transporting and storing the ic. 11) regarding the input pin of the ic this monolithic ic contains p + isolation and p substrate layers between adjacent elements to keep them isolated. p-n j unctions are formed at the intersection of these p layers with the n layers of other el ements, creating a parasitic diode or transistor. for example, the relation between each potential is as follows: when gnd > pin a, the p-n junction operates as a parasitic diode. when gnd > pin b, the p-n junction operates as a parasitic diode and transistor. parasitic elements can occur inevitably in th e structure of the ic. the operation of parasitic elements can result in mutual in terference among circuits, operational faults, or physical damage. accordingly, methods by which parasitic elements operate, such as applying a voltage th at is lower than the gnd (p substrate) voltage to an input pin, should not be used. parasitic element other adjacent elements parasitic elements resistor transistor (npn) n n n p + p + p p substrate gnd pin a n n p + p + p p substrate gnd parasitic elements pin b c b e n gnd pin a parasitic element pin b e b c gnd fig.29 example of simple ic architecture
15/16 selecting a model name when ordering b d 6 8 8 3 g u e 2 rohm model name part number package type taping type 6883 = const. v. 0.5ch 6453 = const. c. 0.5ch 6886 = const. v. 1ch 6369 = const. v. 1ch gul = vcsp50l1 (bd6883) gul = vcsp50l1 (bh6453) gul = vcsp50l2 (bd6886) gul = vcsp50l2 (bd6369) e2 = reel-wound embossed taping l vcsp50l1 (bd6883gul) ( unit:mm ) < dimension > < tape and reel information > tape quantity direction of feed embossed carrier tape (with dry pack) 3000pcs e2 (the direction is the 1pin of product is at the upper left when you hold reel on the left hand and you pull out the tape on the right hand.) when you order , please order in times the amount of package quantity. reel direction of feed 1pin 1234 1234 1234 1234 1234 1234 ( unit:mm ) vcsp50l1 (bh6453gul) < dimension > when you order , please order in times the amount of package quantity. tape quantity 3000pcs reel 1pin 1234 1234 1234 1234 1234 1234 direction of feed < tape and reel information > embossed carrier tape (with dry pack) e2 (the direction is the 1pin of product is at the upper left when you hold reel on the left hand and you pull out the tape on the right hand.) direction of feed ( unit:mm ) vcsp50l2 (bd6886gul, bd6369gul) < dimension > when you order , please order in times the amount of package quantity. tape quantity 3000pcs reel 1pin 1234 1234 1234 1234 1234 1234 direction of feed < tape and reel information > embossed carrier tape (with dry pack) e2 (the direction is the 1pin of product is at the upper left when you hold reel on the left hand and you pull out the tape on the right hand.) direction of feed
catalog no.08t100a '08.6 rohm ? 1000 nz
notes no technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of rohm co.,ltd. the contents described herein are subject to change without notice. the specifications for the product described in this document are for reference only. upon actual use, therefore, please request that specifications to be separately delivered. application circuit diagrams and circuit constants contained herein are shown as examples of standard use and operation. please pay careful attention to the peripheral conditions when designing circuits and deciding upon circuit constants in the set. any data, including, but not limited to application circuit diagrams information, described herein are intended only as illustrations of such devices and not as the specifications for such devices. rohm co.,ltd. disclaims any warranty that any use of such devices shall be free from infringement of any third party's intellectual property rights or other proprietary rights, and further, assumes no liability of whatsoever nature in the event of any such infringement, or arising from or connected with or related to the use of such devices. upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or otherwise dispose of the same, no express or implied right or license to practice or commercially exploit any intellectual property rights or other proprietary rights owned or controlled by rohm co., ltd. is granted to any such buyer. products listed in this document are no antiradiation design. appendix1-rev2.0 thank you for your accessing to rohm product informations. more detail product informations and catalogs are available, please contact your nearest sales office. rohm customer support system the americas / europe / asia / japan contact us : webmaster@ rohm.co. jp www.rohm.com copyright ? 2008 rohm co.,ltd. the products listed in this document are designed to be used with ordinary electronic equipment or de vices (such as audio visual equipment, office-automation equipment, communications devices, electrical appliances and electronic toys). should you intend to use these products with equipment or devices which require an extremely high level of reliability and the malfunction of which would directly endanger human life (such as medical instruments, transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other safety devices), please be sure to consult with our sales representative in advance. it is our top priority to supply products with the utmost quality and reliability. however, there is always a chance of failure due to unexpected factors. therefore, please take into account the derating characteristics and allow for sufficient safety features, such as extra margin, anti-flammability, and fail-safe measures when designing in order to prevent possible accidents that may result in bodily harm or fire caused by component failure. rohm cannot be held responsible for any damages arising from the use of the products under conditions out of the range of the specifications or due to non-compliance with the notes specified in this catalog. 21 saiin mizosaki- cho, ukyo-ku, kyoto 615-8585, japan tel : +81-75-311-2121 fax : +81-75-315-0172 appendix

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