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TB2939HQ rev-1.0 2009-01-21 1 toshiba bi-cmos linear integr ated circuit silicon monolithic TB2939HQ(tentative) 45w 4-ch btl audio power ic the TB2939HQ is a four-channel btl power amplifier for car audio applications. this ic has a pure complementary p-ch and n-ch dmos output stage, offering maximum output power (p out max) of 45 w. it includes a standby switch , mute function and various protection features. features ? high output power ? p out max (1) = 45 w (typ.) (v cc = 15.2 v, f = 1 khz, jeita max, r l = 4 ? ) ? p out max (2) = 41 w (typ.) (v cc = 14.4 v, f = 1 khz, jeita max, r l = 4 ? ) ? p out (1) = 24 w (typ.) (v cc = 14.4 v, f = 1 khz, thd = 10%, r l = 4 ? ) ? p out (2) = 21 w (typ.) (v cc = 13.2 v, f = 1 khz, thd = 10%, r l = 4 ? ) ? low thd: 0.007% (typ.) (v cc = 13.2 v, f = 1 khz, p out = 5 w, r l = 4 ? ) ? low noise: v no = 60 vrms (typ.) (v cc = 13.2 v, r g = 0 ? , bw = 20 hz to 20 khz, r l = 4 ? ) ? standby switch (pin 4) ? mute function (pin 22) ? built-in diagnosis circuit include outp ut dc offset detection (pin 25) ? various protection features thermal overload; overvoltage; ou tput short-circuits to gnd, v cc and across the load; speaker current limiting ? operating supply voltage: v cc (opr) = 8.0 to 18 v (r l = 4 ? ) note 1: install the device correctly. otherwise, the device or system may be degraded, damaged or even destroyed. note 2: the protection features are int ended to avoid output short-circuits or ot her abnormal conditions temporarily. it is not guaranteed that they will prevent the ic from being damaged. exposure to conditions beyond the guaranteed operati ng ranges may not activate the protection features, resulting in an ic damage due to output short-circuits. weight: 7.7 g (typ.) http:///
TB2939HQ rev-1.0 2009-01-21 2 block diagram some of the functional blocks, circui ts or constants may be omitted from the block diagram or simplified for explanatory purposes. 5 v 1 10 6 20 v cc1 v cc2 tab ripple c2 + b c3 c5 9 out1 ( + ) 11 c1 8 7 pw-gnd1 out1 ( ? ) in1 5 out2 ( + ) 12 c1 2 3 pw-gnd2 out2 ( ? ) in2 17 out3 ( + ) 15 18 19 pw-gnd3 out3 ( ? ) in3 21 out4 ( + ) 14 c1 24 23 pw-gnd4 out4 ( ? ) in4 13 16 c1 c6 4 stby 25 22 mute c4 r1 play mute r l r l r l r l pre-gnd a c-gnd offset/short http:///
TB2939HQ rev-1.0 2009-01-21 3 detailed description 1. standby switch (pin 4) the power supply can be turned on or off via pin 4 (stby). the threshold voltage of pin 4 is set at about 3 v be (typ.). the power supply current is about 0.01 a (typ.) in the standby state. standby control voltage (v sb ): pin 4 standby power v sb (v) on off 0 to 0.9 off on 2.9 to vcc check the pop levels when the time constant of pin 4 is changed. benefits of the standby switch (1) v cc can be directly turned on or off by a microcont roller, eliminating the need for a switching relay. (2) since the control current is minuscule, a low-current-rated switching relay can be used. figure 2 standby switch v cc low-current-rated switch battery standby v cc from microcontroller battery standby ? using the standby switch ? ? conventional method ? v cc high-current-rated switch battery v cc from microcontroller battery relay figure 1 setting pin 4 high turns on power on 4 off 10 k ? to bias filter network 2 v be v cc powe r http:///
TB2939HQ rev-1.0 2009-01-21 4 2. mute function (pin 22) the audio mute function is en abled by setting pin 22 low. r 1 and c 4 determine the time constant of the mute function. the time constant affects pop noise gene rated when power or the mute function is turned on or off; thus, it must be determined on a per-application basis. (refer to figures 4 and 5.) the value of the external pull-up resistor is determined, based on pop noise value. for example, when the control voltage is changed fr om 5 v to 3.3 v, the pull-up resistor should be: 3.3 v/5 v 47 k ? = 31 k ? figure 3 mute function figure 4 mute attenuation ? v mute (v) 3. diagnosis output (pin 25) this diagnosis output terminal of pin 25 has open colle ctor output structure on ch ip as shown in figure 5. in case diagnosis circuit that detect unusual case is operated, npn transistor (q1) is turned on. it is possible to protect all the system of apparatus as well as power ic protection. in case of being unused this function, us e this ic as open-connection on pin 25. figure 5 self diagnosis output 22 1 k ? r 1 5 v mute on/off control c 4 0 ? 120 ? 100 ? 80 ? 60 ? 40 ? 20 0 20 0.5 1 1.5 2 2.5 3 v cc = 13.2 v f = 1 khz r l = 4 ? v o = 20dbm bw = 400 hz to 30 khz pin 22 control voltage: v mute (v) att ? v mute mute attenuation att (db) output offset voltage detector output short protector over voltage protector 25 q1 5 v q1 is turned on gnd 5 v t http:///
TB2939HQ rev-1.0 2009-01-21 5 3.1 in case of shorting output to v cc /gnd or over voltage power supplied npn transistor (q1) is turned on. threshold of over voltage protection: v cc = 22 v (typ.) 3.2 in case of shorting output to output npn transistor (q1) is turned on and off in response to the input signal voltage. 2 5 v led/lcd alarm regulator off (flashing) (announcement from a speaker.) (relay off) -com memory (count and record) figure 6 application 1 http:///
TB2939HQ rev-1.0 2009-01-21 6 3.3 dc offset detection the purpose of the integrated dc offset detector is to avoid an anomalous dc offset on the outputs, produced by the input capacitor due to leakage current or short-circuit. figure 7 dc offset detection mechanism amp output out(-) v cc /2 gnd gnd time gnd voltage at (a) (pin 25) offset detection threshold voltage time time voltage at (b) (lpf output) out(+) v re f elec. vol 25 5 v lpf to a microcontroller + ? v negative dc offset ( ? ) (caused by r s2 ) positive dc offset ( + ) (caused by r s1 ) v cc /2 (normal dc voltage) leakage current or short-circuit v bias v ref/2 a b r s2 r s1 the microcontroller shuts down the system if the output is lower than the specified voltage. http:///
TB2939HQ rev-1.0 2009-01-21 7 4. prevention of speaker damage (in case of a layer short-circuit of the speaker) when the dc resistance between the out + and out ? pins falls below 1 ? , the output current exceeds 4 a. at this time, the protection circuit is activate d to limit the current draw into the speaker. this feature prevents the speaker from being damaged, as follows: < speaker damaging scenario > a dc current of over 4 v is applied to the spea ker due to an external circuit failure (note 4). (abnormal dc output offset) the speaker impedance becomes 1 ? or less due to a layer short. a current of over 4 a flows into th e speaker, damaging the speaker. figure 8 note 4: an abnormal dc offset voltage is incurred when t he input bias to the power ic is lost due to a leakage current from a coupling capacitor at the input or a short-circuit between the in and adjacent lines. current into the speaker speaker impedance less than 4 a about 1 ? 4 ? the short-circuit prot ection is activated http:///
TB2939HQ rev-1.0 2009-01-21 8 5. pop noise suppression since the tb2926hq uses the ac-gnd pin (pin 16) as the common input reference voltage pin for all amplifiers, the ratio of the input capacitance (c1) to the ac-to-gnd capacitance (c6) should be 1:4. also, if power is removed before c1 and c6 are comple tely charged, pop noise will be generated because of unbalanced dc currents. to avoid this problem, it is recommended to use a larger capacitor as c2 to increase the charging times of c1 and c6. note, however, that c2 also affects the time required from power-on to audio output. the pop noise generated by the muting and unmuting of the audio output varies wi th the time constant of c4. a larger capacitance reduces the pop noise, but incre ases the time from when th e mute control signal is applied to c4 to when the mute function is enabled. 6. external component constants effects component recommended value purpose when lower than recommended value when higher than recommended value notes c1 0.22 f to eliminate dc cut-off frequency is increased. cut-off frequency is reduced. pop noise is generated when v cc is turned on. c2 10 f to reduce ripple powering on/off is faster. powering on/off is slower. c3 0.1 f to provide sufficient oscillation margin reduces noise and provides su fficient oscillation margin c4 1 f to reduce pop noise high pop noise. duration until mute function is turned on/off is short. low pop noise. duration until mute function is turned on/off is long. c5 3900 f ripple filter power supply humming and ripple filtering. c6 1 f common reference voltage for all input pop noise is suppressed when c1: c6 = 1:4. pop noise is generated when v cc is turned on. http:///
TB2939HQ rev-1.0 2009-01-21 9 absolute maximum ratings (ta = 25c) characteristics symbol rating unit peak supply voltage (0.2 s) v cc (surge) 50 v dc supply voltage v cc (dc) 25 v operating supply voltage v cc (opr) 18 v output current (peak) i o (peak) 9 a power dissipation p d (note 7) 125 w operating temperature t opr ? 40 to 85 c storage temperature t stg ? 55 to 150 c note 5: package thermal resistance j-t = 1c/w (typ.) (ta = 25c, with infinite heat sink) the absolute maximum ratings of a semiconductor device are a set of specified parameter values that must not be exceeded during operation, even for an instant. if any of these ratings are exceeded during operation, the electrical characteristics of the device may be irreparably altered and the reliability and life time of the device can no longer be guaranteed. moreover, any exceeding of the ratings during oper ation may cause breakdown, damage and/or degradation in other equipment. applications using the device sh ould be designed so that no absolute maximum rating will ever be exceeded under any operating conditions. before using, creating and/or producing designs, refer to and comply with the precautions and conditions set forth in this document. characteristics symbol te s t circuit test condition min typ. max unit quiescent supply current i ccq ? v in = 0 ? 160 320 ma p out max (1) ? v cc = 15.2 v, max power ? 45 ? p out max (2) ? v cc = 14.4 v, max power ? 41 ? p out max (3) ? v cc = 13.7 v, max power ? 37 ? p out (1) ? v cc = 14.4 v, thd = 10% ? 24 ? output power p out (2) ? thd = 10% 19 21 ? w total harmonic distortion thd ? p out = 5 w ? 0.007 0.07 % voltage gain g v ? v out = 0.775 vrms 25 26 27 db channel-to-channel voltage gain ? g v ? v out = 0.775 vrms ? 1.0 0 1.0 db v no (1) ? r g = 0 ? , din45405 ? 60 ? output noise voltage v no (2) ? r g = 0 ? , bw = 20 hz to 20 khz ? 60 70 vrms ripple rejection ratio r.r. ? f rip = 100 hz, r g = 620 ? v rip = 0.775 vrms 50 65 ? db crosstalk c.t. ? r g = 620 ? p out = 4 w ? 80 ? db output offset voltage v offset ? ? ?9 0 0 90 mv input resistance r in ? ? ? 90 ? k ? standby current i sb ? standby condition, v4=0,v22=0 ? 0.01 1 a v sb h ? power: on 2.9 ? vcc standby control voltage v sb l ? power: off 0 ? 0.8 v v m h ? mute: off 2.9 ? vcc mute control voltage v m l ? mute: on, r 1 = 47 k ? 0 ? 0.8 v http:///
TB2939HQ rev-1.0 2009-01-21 10 characteristics symbol te s t circuit test condition min typ. max unit mute attenuation att m ? mute: on z din_audio v out = 7.75 vrms mute: off 80 100 ? db upper cut-off frequency f th ? g v = 26db, ? 3db ? 250 ? khz dc offset threshold voltage v off-set ? rpull-up = 10 k ? , + v = 5.0 v out(+)-out(-) 1.0 1.5 2.0 v pin 25 saturation voltage (at each detector on condition) p25-sat ? rpull-up = 10 k ? , + v = 5.0 v (pin 25 = low) ? 100 500 mv electrical characteristics (v cc = 13.2 v, f = 1 khz, r l = 4 ? , ta = 25c unless otherwise specified) test circuit components in the test circuit are only used to determine the device characteristics. it is not guaranteed that the system w ill work properly with these components. 5 v 1 10 6 20 v cc1 v cc2 tab ripple c2: 47 + b c3: 0.1 f c5: 3900 + ) 11 c1: 0.22 f 8 7 pw-gnd1 out1 ( ? ) in1 5 out2 ( + ) 12 2 3 pw-gnd2 out2 ( ? ) in2 17 out3 ( + ) 15 18 19 pw-gnd3 out3 ( ? ) in3 21 out4 ( + ) 14 24 23 pw-gnd4 out4 ( ? ) in4 13 16 c6: 1 f 4 stby 25 22 mute c4: 1 f r1: 47 k ? play mute r l = 4 ohm pre-gnd a c-gnd offset/short c1: 0.22 f c1: 0.22 f c1: 0.22 f r l = 4 ohm r l = 4 ohm r l = 4 ohm http:///
TB2939HQ rev-1.0 2009-01-21 11 output power p out (w) output power p out (w) thd ? p out (ch1) total harmonic distortion thd (%) output power p out (w) output power p out (w) thd ? p out (ch2) total harmonic distortion thd (%) thd ? p out (ch4) total harmonic distortion thd (%) thd ? p out (ch3) total harmonic distortion thd (%) 20 khz 10 khz 1 khz 0.1 100 0.001 0.3 1 30 0.5 10 3 5 50 0.01 0.1 0.003 0.005 0.03 0.05 1 0.3 0.5 10 30 100 50 3 5 f = 100 hz v cc = 13.2 v r l = 4 ? filter 100 hz : to 30 khz 1khz : 400 hz to 30 khz 10 khz : 400 hz to 20 khz : 400 hz to 20 khz 10 khz 1 khz 0.1 100 0.001 0.3 1 30 0.5 10 3 5 50 0.01 0.1 0.003 0.005 0.03 0.05 1 0.3 0.5 10 30 100 50 3 5 f = 100 hz v cc = 13.2 v r l = 4 ? filter 100 hz : to 30 khz 1khz : 400 hz to 30 khz 10 khz : 400 hz to 20 khz : 400 hz to 20 khz 10 khz 1 khz 0.1 100 0.001 0.3 1 30 0.5 10 3 5 50 0.01 0.1 0.003 0.005 0.03 0.05 1 0.3 0.5 10 30 100 50 3 5 f = 100 hz v cc = 13.2 v r l = 4 ? filter 100 hz : to 30 khz 1khz : 400 hz to 30 khz 10 khz : 400 hz to 20 khz : 400 hz to 20 khz 10 khz 1 khz 0.1 100 0.001 0.3 1 30 0.5 10 3 5 50 0.01 0.1 0.003 0.005 0.03 0.05 1 0.3 0.5 10 30 100 50 3 5 f = 100 hz v cc = 13.2 v r l = 4 ? filter 100 hz : to 30 khz 1khz : 400 hz to 30 khz 10 khz : 400 hz to 20 khz : 400 hz to http:///
TB2939HQ rev-1.0 2009-01-21 12 total harmonic distortion thd (%) 13.2 v 0.1 100 0.001 0.3 1 30 0.5 10 3 5 50 0.01 0.1 0.003 0.005 0.03 0.05 1 0.3 0.5 10 30 100 50 3 5 v cc = 13.2 v r l = 4 ? f = 1 khz filter 400 hz to 30 khz v cc = 9 v 16 v 13.2 v 0.1 100 0.001 0.3 1 30 0.5 10 3 5 50 0.01 0.1 0.003 0.005 0.03 0.05 1 0.3 0.5 10 30 100 50 3 5 v cc = 13.2 v r l = 4 ? f = 1 khz filter 400 hz to 30 khz v cc = 9 v 16 v 13.2 v 0.1 100 0.001 0.3 1 30 0.5 10 3 5 50 0.01 0.1 0.003 0.005 0.03 0.05 1 0.3 0.5 10 30 100 50 3 5 v cc = 13.2 v r l = 4 ? f = 1 khz filter 400 hz to 30 khz v cc = 9 v 16 v 13.2 v 0.1 100 0.001 0.3 1 30 0.5 10 3 5 50 0.01 0.1 0.003 0.005 0.03 0.05 1 0.3 0.5 10 30 100 50 3 5 v cc = 13.2 v r l = 4 ? f = 1 khz filter 400 hz to 30 khz v cc = 9 v 16 v output power p out (w) thd ? p out (ch1) total harmonic distortion thd (%) output power p out (w) output power p out (w) output power p out (w) thd ? p out (ch2) thd ? p out (ch4) total harmonic distortion thd (%) thd ? p out (ch3) total harmonic distortion thd (%) http:///
TB2939HQ rev-1.0 2009-01-21 13 1 0.3 v cc = 13.2 v r l = 4 ? p out = 5 w no filter 0.1 0.01 100 0.001 1 10 0.003 0.01 0.03 0.1 3 ripple rejection ratio r.r. (db) frequency f (hz) muteatt ? f mute attenuation muteatt (db) frequency f (khz) r.r. ? f frequency f (khz) g v ? f voltage gain g v (db) total harmonic distortion thd (%) frequency f (khz) thd ? f 0.1 0.01 100 ? 80 1 10 ? 60 ? 40 ? 20 0 v cc = 13.2 v r l = 4 ? vrip = 0.775 vrms (0dbm) v cc = 13.2 v r l = 4 ? v out = 0.775 vrms (0dbm) 0.1 0.01 100 0 1 10 10 20 30 40 100 10 100 k ? 120 1 k 10 k ? 100 ? 80 ? 60 ? 40 ? 20 0 v cc = 13.2 v r l = 4 ? v out = 7.75 vrms (20dbm) 1ch 3ch 2ch 4ch 2 ch 3 ch 1 ch 4 ch 1 ch~4 ch 2 ch 4 ch 1 ch 3 ch 1ch 4 ch 2ch 3ch http:///
TB2939HQ rev-1.0 2009-01-21 14 2000 0 0 5 10 15 20 25 40 80 120 160 r l = v in = 0 v 0 0 2 4 6 8 10 10 20 30 40 v cc = 13.2 v r l = 4 ? no filter 0 0 2 4 6 8 10 10 20 30 40 v cc = 13.2 v r l = 4 ? no filter 0 0 2 4 6 8 10 10 20 30 40 v cc = 13.2 v r l = 4 ? no filter 0 0 2 4 6 8 10 10 20 30 40 v cc = 13.2 v r l = 4 ? no filter output power p out (w) input voltage v in (vrms) v in ? p out (ch1) output power p out (w) input voltage v in (vrms) v in ? p out (ch2) output power p out (w) input voltage v in (vrms) v in ? p out (ch3) output power p out (w) input voltage v in (vrms) v in ? p out (ch4) supply voltage v cc (v) i ccq ? v cc quiescent current i ccq (ma) ambient temperature ta (c) p d max ? ta allowable power dissipation p d max (w) 25 0150 0 120 75 60 100 40 20 80 100 50 125 (1) (2) (3) (1) infinite heat sink r jc = 1 c/w (2) heat sink (r hs = 3.5 c/w r jc + r hs = 4.5 c/w (3) no heat sink r ja = 39 c/w 20 khz 1 khz 10 khz 100 hz 20 khz 1 khz 10 khz 100 hz 20 khz 1 khz 10 khz 100 hz 20 khz 1 khz 10 khz 100 hz http:///
TB2939HQ rev-1.0 2009-01-21 15 1ch~4ch 0 0 5 10 15 20 30 20 40 60 80 f = 1 khz r l = 4 ? 4ch drive 25 v cc = 13.2 v r l = 4 ? v out = 0.775 vrms (0dbm) r g = 620 ? 0 ? 80 10 ? 60 ? 40 ? 20 100 1 k 10 k 100 k v cc = 13.2 v r l = 4 ? v out = 0.775 vrms (0dbm) r g = 620 ? 0 ? 80 10 ? 60 ? 40 ? 20 100 1 k 10 k 100 k v cc = 13.2 v r l = 4 ? v out = 0.775 vrms (0dbm) r g = 620 ? 0 ? 80 10 ? 60 ? 40 ? 20 100 1 k 10 k 100 k v cc = 13.2 v r l = 4 ? v out = 0.775 vrms (0dbm) r g = 620 ? 0 ? 80 10 ? 60 ? 40 ? 20 100 1 k 10 k 100 k v cc = 13.2 v r l = 4 ? filter: 20 hz~20 khz 100 10 100 k 0 1 k 10 k 100 200 300 output noise voltage v no ( vrms) cross talk c.t. (db) frequency f (hz) c.t. ? f (ch1) cross talk c.t. (db) frequency f (hz) c.t. ? f (ch2) cross talk c.t. (db) frequency f (hz) c.t. ? f (ch3) cross talk c.t. (db) frequency f (hz) c.t. ? f (ch4) signal source resistance r g ( ? ) v no ? r g output power p out (w) p d ? p out power dissipation p d (w) ct (1-2) ct (1-3) ct (1-4) ct (2-1) ct (2-3) ct (2-4) ct (3-1) ct (3-2) ct (3-4) ct (4-1) ct (4-2) ct (4-3) v cc = 9.0 v 13.2 v 16 v 18 v http:///
TB2939HQ rev-1.0 2009-01-21 16 package dimensions weight: 7.7 g (typ.) http:///
TB2939HQ rev-1.0 2009-01-21 17 ? use an appropriate power supply fuse to ensure that a lar ge current does not continuously flow in case of over current and/or ic failure. the ic will fully break down when used under conditions that exceed its absolute maximum ratings, when the wiring is routed improperly or when an abnormal pulse noise occurs from the wiring or load, causing a large current to continuously flow and t he breakdown can lead smoke or ignition. to minimize the effects of the flow of a large current in case of breakdown, appropriate settings, such as fuse capacity, fusing time and insertion circuit location, are required. ? if your design includes an inductive load such as a motor coil, incorporate a protection circuit into the design to prevent device malfunction or breakdown caused by the current resulting from the inrush current at power on or the negative current resulting from t he back electromotive force at power off. for details on how to connect a protection circuit such as a current limiting resistor or ba ck electromotive force adsorption diode, refer to individual ic datasheets or the ic databook. ic breakdown may cause injury, smoke or ignition. ? use a stable power supply with ics with built-in protection functions. if the power supply is unstable, the protection function may not operate, causing ic breakdown. ic breakdown may cause injury, smoke or ignition. ? carefully select external components (such as inputs and negative feedback capacitors) and load components (such as speakers), for example, powe r amp and regulator. if there is a lar ge amount of leakage current such as input or negative feedback condenser, the ic output dc voltage will increase. if this output voltage is connected to a speaker with low input withstand voltage, overcurrent or ic failure can cause smoke or ignition. (the over current can cause smoke or ignition from the ic itself.) in particular, please pay attention when using a bridge tied load (btl) connection type ic that inputs output dc voltage to a speaker directly. ? over current protection circuit over current protection circuits (referred to as current li miter circuits) do not necessarily protect ics under all circumstances. if the over current protec tion circuits operate against the over cu rrent, clear the over current status immediately. depending on the method of use and usage conditions, such as exceeding absolute maximum ratings can cause the over current pr otection circuit to not operate properly or ic breakdown before operation. in addition, depending on the method of use and usage conditions, if over current continues to flow for a long time after operation, the ic may generate heat resulting in breakdown. ? thermal shutdown circuit thermal shutdown circuits do not necessarily protect ic s under all circumstances. if the thermal shutdown circuits operate against the over temperature, clear the heat generation status immediately. depending on the method of use and usage conditions, such as exceeding absolute maxi mum ratings can cause the thermal shutdown circuit to not operate properly or ic breakdown before operation. ? heat radiation design when using an ic with large current flow such as power amp, regulator or driver, please design the device so that heat is appropriately radiated, not to exceed the specifi ed junction temperature (tj) at any time and condition. these ics generate heat even during norma l use. an inadequate ic heat radiat ion design can lead to decrease in ic life, deterioration of ic characte ristics or ic breakdown. in addition, please design the device taking into considerate the effect of ic heat r adiation with peripheral components. ? installation to heat sink please install the power ic to the heat sink not to apply excessive mechanical stress to the ic. excessive mechanical stress can lead to package cracks, resulting in a reduction in reliability or breakdown of internal ic chip. in addition, depending on the ic, the use of silicon rubber may be prohibited. check whether the use of silicon rubber is prohibited for the ic you intend to use, or not. for details of power ic heat radiation design and heat sink installation, refer to individual technical datasheets or ic databooks. http:///
TB2939HQ rev-1.0 2009-01-21 18 restrictions on product use 060116eba ? the information contained herein is subject to change without notice. 021023_d ? toshiba is continually working to improve the quality a nd reliability of its products. nevertheless, semiconductor devices in general can malfunction or fail due to their i nherent electrical sensitivity and vulnerability to physical stress. it is the responsibility of t he buyer, when utilizing toshiba products, to comply with the standards of safety in making a safe design for the entire system, and to avoid situations in which a malfun ction or failure of such toshiba products could cause loss of human life, bodily injury or damage to property. in developing your designs, please ensure that toshiba products are used within s pecified operating ranges as set forth in the most recent toshiba products specific ations. also, please keep in mind the precautions and conditions set forth in the ?handling guide for semico nductor devices,? or ?toshiba semiconductor reliability handbook? etc. 021023_a ? the toshiba products listed in this document are in tended for usage in general electronics applications (computer, personal equipment, office equipment, measuri ng equipment, industrial robotics, domestic appliances, etc.). these toshiba products are neither intended nor warranted for usage in equipment that requires extraordinarily high quality and/or reliability or a malfunc tion or failure of which may cause loss of human life or bodily injury (?unintended usage?). unintended usage incl ude atomic energy control instruments, airplane or spaceship instruments, transportation instruments, traffi c signal instruments, comb ustion control instruments, medical instruments, all types of safety devices, et c. unintended usage of toshiba products listed in this document shall be made at the customer?s own risk. 021023_b ? the products described in this document shall not be used or embedded to any downstream products of which manufacture, use and/or sale are prohibited under any applicable laws and regulations. 060106_q ? the information contained herein is presented only as a gu ide for the applications of our products. no responsibility is assumed by toshiba for any infringements of patents or other rights of the third parties which may result from its use. no license is granted by impl ication or otherwise under any patent or patent rights of toshiba or others. 021023_c ? the products described in this document are subject to the foreign exchange and foreign trade laws. 021023_e about solderability, following conditions were confirmed ? solderability (1) use of sn-37pb solder bath solder bath temperature = 230c dipping time = 5 seconds the number of times = once use of r-type flux (2) use of sn-3.0ag-0 .5cu solder bath solder bath temperature = 245c dipping time = 5 seconds the number of times = once use of r-type flux http:///

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