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TB6556F/fg 2005-01-19 1 toshiba bi-cmos integrated circuit silicon monolithic TB6556F/fg 3-phase full-wave sine-wave pwm brushless motor controller features ? sine-wave pwm control ? built-in triangular-wave generator (carrier cycle = f osc /252 (hz)) ? built-in lead angle control function (0 to 58 in 32 steps) external setting/automatic internal setting ? built-in dead time function (setting 2.6 s or 3.8 s) ? supports bootstrap circuit ? overcurrent protection signal input pin ? built-in regulator (v refout = 5 v (typ.), 30 ma (max)) ? operating supply voltage range: v cc = 6 v to 10 v weight: 0.33 g (typ.) TB6556Fg: TB6556Fg is a pb-free product. the following conditions apply to solderability: *solderability 1. use of sn-63pb solder bath *solder bath temperature = 230 ? c *dipping time = 5 seconds *number of times = once *use of r-type flux 2. use of sn-3.0ag-0.5cu solder bath *solder bath temperature = 245 ? c *dipping time = 5 seconds *the number of times = once *use of r-type flux
TB6556F/fg 2005-01-19 2 block diagram phase v system clock generator position detector regulator counter 5-bit ad 6-bit triangular wave generator output waveform generator data select switching 120/180 and gate block protection on/off setting dead time charger 120- turn-on matrix power-on reset protection & reset 14 15 21 20 19 2 1 13 23 11 3 18 17 16 12 4 7 5 8 6 9 10 phase matching fg rotating direction st/sp cw/ccw err gb comparator comparator comparator comparator pwm hu hv hw 120/180 phase w phase u x in x out hu hv hw v e v cc gnd v refout res i dc cw/ccw fg ev td ph u x v y w z os internal reference voltage ss peak hold filter + 26 27 la 28 lower limit upper limit 30 29 g in g out lpf ll ul 22
TB6556F/fg 2005-01-19 3 pin description pin no. symbol description remarks 21 hu positional signal input pin u 20 hv positional signal input pin v 19 hw positional signal input pin w when positional signal is hhh or lll, gate bloc k protection operates. with built-in pull-up resistor, built-in digital filter ( ? 500 ns) 18 cw/ccw rotation direction signal input pin l: forward h: reverse 11 res reset-signal-input pin l: reset (output is non-active) operation/halt operation, also used for gate protection, built-in pull-up resistor 2 v e voltage command signal with built-in pull-down resistor 24 g in 25 g out gain setting i dc signal level at a gain that optimizes the la 26 ph peak hold connect the peak-hold capacitor and discharge resistor to gnd, parallel to each other 27 lpf rc low-pass filter connect the low-pass filter capacitor (built-in 100 k ? resistor) 28 la lead angle setting signal input pin sets 0 to 58 in 32 steps 29 ll lower limit for la set lower limit for la (ll = 0 v to 5.0 v) 30 ul upper limit for la set upper limit for la (ul = 0 v to 5.0 v) 12 os inputs output logic select signal l: active low h: active high 3 i dc inputs overcurrent protection signal inputs dc link current. reference voltage: 0.5 v with built-in filter ( ? s), built-in digital filter ( ? 1 s) 14 x in inputs clock signal 15 x out outputs clock signal with built-in feedback resistor 23 v refout outputs reference voltage signal 5 v (typ.), 30 ma (max) 17 fg fg signal output pin outputs 3 ppr of positional signal 16 rev reverse rotation detection signal detects reverse rotation. 9 u outputs turn-on signal 8 v outputs turn-on signal 7 w outputs turn-on signal 6 x outputs turn-on signal 5 y outputs turn-on signal 4 z outputs turn-on signal select active high or active low using the output logic select pin. 1 v cc power supply voltage pin v cc = 6 to 10 v 10 td inputs setting dead time l: 3.8 s, h or open: 1.9 s 22 ss 120 /180 select signal l: 120 turn-on mode, h or open: 180 turn-on mode 13 gnd ground pin ?
TB6556F/fg 2005-01-19 4 input/output equivalent circuits pin description symbol input/output signal input/output internal circuit positional signal input pin u positional signal input pin v positional signal input pin w hu hv hw digital with schmitt trigger hysteresis 300 mv (typ.) digital filter: 500 ns (typ.) l: 0.8 v (max) h: v refout ? 1 v (min) forward/reverse switching input pin l: forward (cw) h: reverse (ccw) cw/ccw digital l: 0.8 v (max) h: v refout ? 1 v (min) reset input l: stops operation (reset) h: operates res digital l: 0.8 v (max) h: v refout ? 1 v (min) 120 /180 select signal l: 120 turn-on mode h: 180 turn-on mode (open) ss digital with schmitt trigger hysteresis: 300 mv (typ.) l: 0.8 v (max) h: v refout ? 1 v (min) voltage command signal 1.0 v < ve 2.1 v refresh operation (x, y, z pins: on duty of 8%) v e analog input voltage range 0 to 5.4 v input voltage of 5.4 v or higher is clipped to 5.4 v. v cc 150 k ? 100 ? v refout v refout 200 k ? 2.0 k ? v refout v refout 200 k ? 2.0 k ? v refout v refout 100 k ? 2.0 k ? v refout v refout 100 k ? 2.0 k ?
TB6556F/fg 2005-01-19 5 pin description symbol input/output signal input/output internal circuit lead angle setting signal input pin 0 v: 0 5 v: 58 (5-bit ad) la when la is fixed externally, connect ll to gnd and ul to v refout , and then input the setting voltage to the la pin. input voltage range: 0 v to 5.0 v (v refout ) input voltage of v refout or higher is clipped to v refout . when la is fixed automatically, open the la pin. in this state, the la pin is used only for confirmation of la width. gain setting signal input (la setting) g in g out non-inverted amplifier 25 db (max) g out output voltage low: gnd high: v cc ? 1.7 v peak hold (la setting) ph connect the peak-hold capacitor and discharge resistor to gnd, parallel to each other. 100 k ? /0.1 f recommended low-pass filter (la setting) lpf connect the low-pass filter capacitor (built-in 100 k ? resistor) 0.1 f recommended lower limit for la ll clip lower limit for la ll = 0 v to 5.0 v when ll > ul, la is fixed at ll value. v cc 100 ? 100 ? v cc 100 k ? 100 ? 100 ? v cc v cc 200 k ? v cc 200 k ? 100 ? a utomatic la circuit v cc v cc g in g out i dc to peak hold circuit 100 ?
TB6556F/fg 2005-01-19 6 pin description symbol input/output signal input/output internal circuit upper limit for la ul clip upper limit for la ul = 0 v to 5.0 v when ll > ul, la is fixed at ll value. setting dead time input pin l: 3.8 s h or open: 1.9 s td digital l: 0.8 v (max) h: v refout ? 1 v (min) output logic select signal input pin l: active low h: active high os digital l: 0.8 v (max) h: v refout ? 1 v (min) overcurrent protection signal input pin i dc analog digital filter: 1 s (typ.) gate protected at 0.5 v or higher (released at carrier cycle) clock signal input pin x in clock signal output pin x out operating range 2 mhz to 8 mhz (crystal oscillation) 360 k ? v refout v refout x out x in v refout v refout 100 k ? 2 k ? v refout v refout 100 k ? 2 k ? v cc 0.5 v 200 k ? 5 pf comparator g out g in 100 ? 100 ? v cc
TB6556F/fg 2005-01-19 7 pin description symbol input/output signal input/output internal circuit reference voltage signal output pin v refout 5 0.5 v (max 30 ma) reverse-rotation-detection signal output pin rev digital push-pull output: 1 ma (max) fg signal output pin fg digital push-pull output: 1 ma (max) turn-on signal output pin u turn-on signal output pin v turn-on signal output pin w turn-on signal output pin x turn-on signal output pin y turn-on signal output pin z u v w x y z analog push-pull output: 2 ma (max) l: 0.78 v (max) h: v refout ? 0.78 v (min) v refout v refout 100 ? v refout v refout 100 ? v cc v cc v cc v refout 100 ?
TB6556F/fg 2005-01-19 8 maximum ratings (ta = 25c) characteristics symbol rating unit supply voltage v cc 12 v v in (1) ? 0.3~v cc (note 1) input voltage v in (2) ? 0.3~v refout + 0.3 (note 2) v turn-on signal output current i out 2 ma power dissipation p d 1.50 (note 3) w operating temperature t opr ? 30~115 (note 4) c storage temperature t stg ? 50~150 c note 1: v in (1) pin: v e , la, g in , g out , ph, lpf, ll, ul note 2: v in (2) pin: hu, hv, hw, cw/ccw, res, os, i dc , td, ss note 3: when mounted on pcb (universal 50 50 1.6 mm, cu 30%) note 4: operating temperature range is determined by the p d ? ta characteristic. recommended operating conditions (ta = 25c) characteristics symbol min typ. max unit supply voltage v cc 6 7 10 v crystal oscillation frequency x in 2 4 8 mhz ambient temperature ta (c) p d ? ta power dissipation p d (w) 0 0 2.0 (1) when mounted on pcb universal 50 50 1.6 mm (2) ic only r th (j-a) = 110c/w 1.5 1.0 0.5 50 100 150 200 (2) (1)
TB6556F/fg 2005-01-19 9 electrical characteristics (ta = 25c, v cc = 7 v) characteristics symbol test circuit test condition min typ. max unit supply current i cc ? v refout = open ? 5 8 ma i in (1) -1 v in = 5 v la ? 25 50 i in (1) -2 v in = 5 v v e ? 35 70 i in (2) -1 v in = 0 v hu, hv, hw, ss ? 50 ? 25 ? input current i in (2) -2 ? v in = 0 v cw/ccw, os, td, res ? 100 ? 50 ? a high v refout ? 1 ? v refout v in low ? hu, hv, hw, cw/ccw, res, os, td, ss ? ? 0.8 v h pwm duty 100% 5.1 5.4 5.7 m refresh start motor operation 1.8 2.1 2.4 input voltage v e l ? turned-off refresh 0.7 1.0 1.3 v input hysteresis voltage v h ? hu, hv, hw, ss (note 5) ? 0.3 ? v v dt hu, hv, hw x in = 4.19 mhz ? 0.5 ? input delay time v dc ? idc x in = 4.19 mhz ? 1.0 ? s v out (h)-1 i out = 2 ma u, v, w, x, y, z v refout ? 0.78 v refout ? 0.3 ? v out (l)-1 i out = ? 2 ma u, v, w, x, y, z ? 0.3 0.78 v rev (h) i out = 1 ma rev v refout ? 1.0 v refout ? 0.2 ? v rev (l) i out = ? 1 ma rev ? 0.2 1.0 v fg (h) i out = 1 ma fg v refout ? 1.0 v refout ? 0.2 ? v fg (l) i out = ? 1 ma fg ? 0.2 1.0 output voltage v refout ? i out = 30 ma v refout 4.5 5.0 5.5 v i l (h) v out = 0 v u, v, w, x, y, z ? 0 10 output leakage current i l (l) ? v out = 3.5 v u, v, w, x, y, z ? 0 10 a t off (h) td = high or open, x in = 4.19 mhz, i out = 2 ma, os = high/low 1.5 1.9 ? output off-time by upper/lower transistor (note 6) t off (l) ? td = low, x in = 4.19 mhz, i out = 2 ma, os = high/low 3.0 3.8 ? s overcurrent detection v dc ? i dc 0.46 0.5 0.54 v amp out g out output current 5 ? ? ma la gain setting amp amp ofs ? g in , g out 11 k ? /1 k ? ? ?4 0 ? mv ? l ll = 0.7 v ? 20 ? 20 la limit setting difference ? u ? ul = 2.0 v ? 20 ? 20 mv la peak hold output current ph out ? ph output current ? ? 5 ma t la (0) ? la = 0 v or open, hall in = 100 hz ? 0 ? t la (2.5) ? la = 2.5 v, hall in = 100 hz 27.5 32 34.5 lead angle correction t la (5) ? la = 5 v, hall in = 100 hz 53.5 59 62.5 v cc (h) ? output start operation point 4.2 4.5 4.8 v cc (l) ? no output operation point 3.7 4.0 4.3 v cc monitor v h ? input hysteresis width ? 0.5 ? v note 5: toshiba does not implement testing before shipping.
TB6556F/fg 2005-01-19 10 note 6: t off os = high os = low 0.78 v 0.78 v t off t off 0.78 v 0.78 v turn-on signal (u, v, w) turn-on signal (x, y, z) v refout ? 0.78 v t off turn-on signal (u, v, w) turn-on signal (x, y, z) t off v refout ? 0.78 v v refout ? 0.78 v v refout ? 0.78 v
TB6556F/fg 2005-01-19 11 functional description 1. basic operation the motor is driven by the square-wave turn-on signal based on a positional signal. when the positional signal reaches number of rotations f = 5 hz or higher, the rotor position is estimated according to the positional signal and a modulation wave is generated. the modulation wave and the triangular wave are compared; then the sine-wave pwm signal is generated and the motor is driven. from start to 5 hz: when driven by square wave (120 turn-on) f = f osc /(2 12 32 6) 5 hz~: when driven by sine-wave pwm (180 turn-on); when f osc = 4 mhz, approx. 5 hz 2. select drive function this function can select drive mode. ss pin high or open = sine-wave pwm drive (180 turn-on mode) low = square-wave drive (120 turn-on mode) note: if the position sensing signal is f = 5 hz or lower, the driver is 120 turn-on mode even when ss = high. 3. v e voltage command signal function and function to stabilize bootstrap voltage (1) when the voltage command signal is input at v e < = when the voltage command signal is input at 1.0 v < ve < = when the voltage command signal is input at ve > 2.1 v: during sin-wave drive, outputs drive signal as it is. during square-drive, forcibly turns on the lower transistor at regular (carrier) cycle. (on duty is approx. 8%) note: at startup, turn the lower transistor on for a fixed time with 1.0 v < ve < = 2.1 v to charge the upper transistor gate power supply. 4. dead time function: upper/lower transistor output off-time when the motor is driven by sine-wave pwm, dead time is digitally generated in the ic to prevent a short circuit caused by the simultaneous turning on of upper and lower external power devices. when a square wave is generated in full-duty cycle mode, the dead time function is turned on to prevent a short circuit. td pin internal counter t off high or open 8/f osc 1.9 s low 16/f osc 3.8 s t off values above are obtained when fosc = 4.19 mhz. f osc = reference clock (crystal oscillation) (1) (2) (3) 100% 2.1 v 1.0 v 5.4 v v e pwm duty
TB6556F/fg 2005-01-19 12 5. correcting the lead angle the lead angle can be corrected in the turn-on signal range from 0 to 58 in relation to the induced voltage. analog input from la pin (0 v to 5 v divided by 32): 0 v = 0 5 v = 58 (when more than 5 v is input, 58) 6. setting the carrier frequency this function sets the triangular wave cycle (carrier cycle) necessary for generating the pwm signal. (the triangular wave is used for forcibly turning on the lower transistor when the motor is driven by square wave.) carrier cycle = f osc /252 (hz) f osc = reference clock (crystal oscillation) 7. switching the output of the turn-on signal this function switches the output of the turn-on signal between high and low. pin os: high = active high low = active low 8. outputting the reverse rotation detection signal this function detects the motor rotation direction every electrical angle of 360. (the output is high immediately after reset.) the rev terminal increases with a 180 turn-on mode during low. cw/ccw pin actual motor rotating direction rev pin cw (forward) low low (cw) ccw (reverse) high cw (forward) high high (ccw) ccw (reverse) low 9. protecting input pin 1. overcurrent protection (pin i dc ) when the dc-link-current exceeds the internal reference voltage, performs gate block protection. overcurrent protection is released for each carrier frequency. reference voltage = 0.5 v (typ.) 2. gate protection (pin res) output is turned off when the input signal is low, restarted when the input signal is high. the abnormality is detected externally and the signal input to pin res. res pin os pin output turn-on signal (u, v, w, x, y, z) low high low high low (when res = low, bootstrap capacitor charging stops.)
TB6556F/fg 2005-01-19 13 3. internal protection ? positional signal abnormality protection output is turned off when the positional signal is hhh or lll; otherwise, it is restarted. ? low power supply voltage protection (v cc monitor) for power supply on/off outside the operating voltage range, the turn-on signal output is kept at high impedance outside the operating voltage range to prevent damage caused by power device short circuits. however, if the voltage level is supplied from the v e pin, this function is restricted, e.g., when v e > 4.9 v is applied, low power supply voltage protection does not operate. output at high impedance turn-on signal power supply voltage 4.5 v (typ.) 4.0 v (typ.) gnd v m v cc output at high impedance output
TB6556F/fg 2005-01-19 14 operation flow note: output on time is decreased by the dead time (carrier frequency 92% ? t d 2) sine-wave pattern (modulation signal) triangular wave (carrier frequency) position detector counter system clock generator phase matching positional signal (hall ic) voltage instruction oscillator comparator phase w phase v phase u u x v y w z voltage command signal v e driven by sine wave modulation ratio (modulation signal) 2.1 v (typ.) 100% 5.4 v (typ.) 0 voltage command signal v e driven by square wave output on duty (u, v, w) 2.1 v (typ.) 92% (note) 5.0 v (typ.)
TB6556F/fg 2005-01-19 15 the modulation waveform is generated using hall signals. the modulation waveform is then compared with the triangular wave and a sine-wave pwm signal is generated. the time (electrical degrees: 60) from the rising (or falling) edges of the three hall signals to the next falling (or rising) edges is counted. the counted time is used as the data for the next 60 phase of the modulation waveform. there are 32 items of data for the 60 phase of the modulation waveform. the time width of one data item is 1/32 of the time width of the 60 phase of the previous modulation waveform. the modulation waveform moves forward by the width. in the above diagram, the modulation waveform (1)? data moves forward by the 1/32 time width of the time (1) from hu: to hw: . similarly, data (2)? moves forward by the 1/32 time width of the time (2) from hw: to hv: . if the next edge does not occur after the 32 data items end, the next 32 data items move forward by the same time width until the next edge occurs. the modulation wave is brought into phase with every zero-cross point of the hall signal. the modulation wave is reset in synchronization with the rising and falling edges of the hall signal at every 60 electrical angle. thus, when the hall device is not placed at the correct position or during acceleration and deceleration, the modulation waveform is not continuous at every reset. * t s v (1)? 1 2 3 4 5 6 30 31 32 32 data items * t * t = t(1) 1/32 hu hv hw s u s v sw ? ? ? ? * hu, hv, hw: hall signals
TB6556F/fg 2005-01-19 16 timing charts hall signal (input) h u h v h w fg signal (output) fg turn-on signal when driven by square wave (output) u v w x y z s u s v s w modulation waveform when driven by sine wave (inside of ic) forward h u h v h w fg signal (output) fg u w x y z s u s v s w hall signal (input) v reverse turn-on signal when driven by square wave (output) modulation waveform when driven by sine wave (inside the ic)
TB6556F/fg 2005-01-19 17 operating waveform when driven by square wave (cw/ccw = low, os = high) to stabilize the bootstrap voltage, the lower outputs (x, y, and z) are always turned on at the carrier cycle even during off time. at that time, the upper outputs (u, v, and w) are assigned dead time and turned off at the timing when the lower outputs are turned on. (t d varies with input v e. ) carrier cycle = f osc /252 (hz) dead time: t d = 16/f osc (s) (in more than v e = 5.0 v) t onl = carrier cycle 8% (s) (uniformity) when the motor is driven by a square wave, acceleration or deceleration is determined by voltage v e . the motor accelerates or decelerates according to the on duty of t onu . (see the diagram of output on duty on page 14.) note: at startup, the motor is driven by a square wave when the hall signals are 5 hz or lower (f osc = 4 mhz) and the motor is rotating in the reverse direction to that of the TB6556F/fg controlling it (rev = high). hall signal h u h v h w enlarged waveform u x v y w z output waveform t onu t onl t d w z t d
TB6556F/fg 2005-01-19 18 operating waveform when driven by sine-wave pwm (cw/ccw = low, os = high) when driven by a sine wave, the motor is accelerated or decelerated according to the on duty of t onu as the amplitude of the modulation symbol changes according to voltage v e . (see the diagram of the output on duty on page 14.) triangular wave frequency = carrier frequency = f osc /252 (hz) note: at startup, the motor is driven by a sine wave when the hall signals are 5 hz or higher (f osc = 4 mhz) and the motor is rotating in the same direction as the TB6556F/fg controlling it (rev = low). generation inside of ic phase v phase u phase w modulation signal triangular wave (carrier frequency) v uv (u-v) v vw (v-w) v wu (w-u) inter-line voltage output waveform u x v y w z
TB6556F/fg 2005-01-19 19 example of application circuit note 1: connect to ground as necessary to prevent ic malfunction due to noise. note 2: connect gnd to signal ground on the application circuit. note 3: the device may be damaged by short circuits between outputs or between output and supply or ground. peripheral parts ma y also be damaged by overvoltage and overcurrent. design the output lines, v cc and gnd lines to ensure that no short circuits occur. be careful also not to insert the ic in the wrong direction since this may destroy the ic. x in x out hu hv hw v e v cc gnd res i dc cw/ccw ss fg td u x v y w z os mcu power supply hall ic signal (note 1) (note 1) pre-driver (charge pump) m driver 6 to 10 v system clock generator position detector counter 5-bit ad triangular wave g enerator 6-bit output waveform generator selecting data switching 120/180 & gate block protection on/off setting dead time charger 120- turn-on matrix power-on reset protection & reset 14 15 21 20 19 22 13 11 3 18 17 16 12 4 7 5 8 6 9 10 phase matching fg rotating direction st/sp cw/ccw err gb comparator comparator comparator comparator pwm hu hv hw 120/180 phase w phase u rev ph phase v internal reference voltage 2 peak hold filter + 25 24 26 27 la 28 lower limit upper limit 30 29 g in g out lpf v refout 23 v refout v refout ul ll regulator 1 r2 r1 g = 1 + (r2/r1)
TB6556F/fg 2005-01-19 20 package dimensions weight: 0.63 g (typ.)
TB6556F/fg 2005-01-19 21 notes on contents 1. block diagrams some of the functional blocks, circuits, or constants may be omitted or simplified in the block diagram for explanatory purposes. 2. equivalent circuits the equivalent circuit diagrams may be simplified or some parts of them may be omitted for explanatory purposes. 3. timing charts timing charts may be simplified for explanatory purposes. 4. maximum ratings 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, in which case the reliability and lifetime of the device can no longer be guaranteed. moreover, any exceeding of the ratings during operation may cause breakdown, damage and/or degradation in other equipment. applications using the device should be designed so that no 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. 5. application circuits the application circuits shown in this document are provided for reference purposes only. thorough evaluation is required in the mass production design phase. in furnishing these examples of application circuits, toshiba does not grant the use of any industrial property rights. 6. test circuits components in test circuits are used only to obtain and confirm device characteristics. these components and circuits are not guaranteed to prevent malfunction or failure in application equipment. handling of the ic ensure that the product is installed correctly to prevent breakdown, damage and/or degradation in the product or equipment. over-current protection and heat protection circuits these protection functions are intended only as a temporary means of preventing output short circuits or other abnormal conditions and are not guaranteed to prevent damage to the ic. if the guaranteed operating ranges of this product are exceeded, these protection features may not operate and some output short circuits may result in the ic being damaged. the over-current protection feature is intended to protect the ic from temporary short circuits only. short circuits persisting over long periods may cause excessive stress and damage the ic. systems should be configured so that any over-current condition will be eliminated as soon as possible. counter-electromotive force when the motor reverses or stops, the effect of counter-electromotive force may cause the current to flow to the power source. if the power supply is not equipped with sink capability, the power and output pins may exceed the maximum rating. the counter-electromotive force of the motor will vary depending on the conditions of use and the features of the motor. therefore make sure there will be no damage to or operational problem in the ic, and no damage to or operational errors in peripheral circuits caused by counter-electromotive force.
TB6556F/fg 2005-01-19 22 ? the information contained herein is subject to change without notice. ? the information contained herein is presented only as a guide 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 implication or otherwise under any patent or patent rights of toshiba or others. ? toshiba is continually working to improve the quality and relia bility of its products. neve rtheless, semiconductor devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. it is the responsibility of the 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 malfunction 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 specified operating ranges as set forth in the most recent toshiba products specifications. also, please keep in mind the precautions and conditions set forth in the ?handling guide for semiconductor devices,? or ?toshiba semiconductor reliability handbook? etc.. ? the toshiba products listed in this document are intended for usage in general electronics applications (computer, personal equipment, office equipment, measuring 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 malfunctio n or failure of which may cause loss of human life or bodily injury (?unintended usage?). unintended usage include atomic energy control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments, medical instruments, all types of safety devices, etc.. unintended usage of toshiba products listed in this document shall be made at the customer?s own risk. ? the products described in this document are subject to the foreign exchange and foreign trade laws. ? toshiba products should not be embedded to the downstream products which are prohibited to be produced and sold, under any law and regulations. 030619eba restrictions on product use

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