TD300 15v triple igbt/mos driver june 1998 n dip14 (plastic package) ? . three power igbt/mos or pulse transformer drivers . current sense comparator with 1ms inhibition time function . instantaneous signal transmission . 0.6 amp per channel peak output current capability . low output impedance typ : 7 w at 200ma . cmos/lsttl compatible inverting in- put with hysteresis . 13v to 16v single supply operation . under voltage lockout (12.5v) . current amplifier . low bias current typ : 1.5ma . during power up no random output state . enhanced latch-up immunity . channel paralleling capability description the TD300 is designed to drive one, two or three power igbt/mos and has driving capability for pulse transformer. so it is perfectly suited to inter- face control ic with power switches in low side or half-bridge configuration. the typical application shown figure 1 implements the TD300 in a pulse controlled half-bridge drive. positive and negative pulses are applied to the pulse transformer to charge and discharge the igbt/mos gate capacitance. more sophisticated secondary circuits provide low impedance gate drive and short-circuit protection as shown in appli- cation note an461. on figure 2, TD300 is implemented as a low side driver in a typical 3 phase motor drive. figure 3 presents a general purpose low side gate drive. in both case, the current amplifier provides inter- facing between a sense resistor and an a/d converter. d so14 (plastic micropackage) input a cc v + output c 1 2 3 4 8 5 6 7 9 10 11 12 13 14 oa input n.c. output b output a gnd sense input oa output input b input c enable alarm pin connections order codes part number temperature range package nd TD300i -40 o c, +105 o c 1/8
4 - input c 7 - current output 6 - alarm 5 - enable 3 - input b 2 - input a 15v control unit tsi tai 11 - output c 9 - sense input 12 - output b 13 - output a v cc gnd 12.5v 8 - current input 1 10 0v 0v block diagram absolute maximum ratings symbol parameter value unit v cc supply voltage 18 v v i input voltage 0 to v cc v v is sense input voltage -0.3 to v cc v t j operating junction temperature -40 to 150 o c t amb operating ambient temperature -40 to 105 o c t stg storage temperature range -65 to 150 o c operating conditions symbol parameter value unit v cc supply voltage 13 to 16 v instructions for use 1 - the TD300 supply voltage must be decoupled with a 1 m f min. capacitor. 2 - if the application involving TD300 requires maximum output current capability, this current must be pulsed : pulse width 1 m sec, duty cycle 1% at t amb . TD300 2/8
electrical characteristics v cc = 15v, t amb = 25 o c (unless otherwise specified) symbol parameter min. typ. max. unit i cc supply current with inputs in high state 1.5 2 ma logic input (all inputs) v ih high input voltage 2 v v il low input voltage 0.8 v i ih high input current 10 pa i il low input current 10 pa t dh, t el t dl, t eh propagation delay (10% input to 10% output) output delay output delay t min. t amb t max. 200 60 400 400 ns t ii input inhibiting time 100 ns t dd differential delay time between channels 20 ns output drivers v sod sourcing drop voltage (a/b/c outputs) i source = 200ma 3 v v sid sinking drop voltage (a/b/c outputs) i sink = 200ma 5 v v dem demagnetising drop voltage (a/b/c outputs) i demag. = 100ma 2 v r opd output pull down resistor 47 k w undervoltage lockout v hys threshold hysteresis 0.8 v v st internal start threshold 11.7 13.3 v alarm output i s low level sinking current v o = 0.8v 5 35 ma i sh high level sinking current 500 na t a alarm output : delay time to alarm fall if sense input triggered 500 ns sense input v ios input offset voltage 20 mv t ai inhibition time if sense input triggered 1 ms t s delay time to output fall if sense input triggered all outputs inhibited 600 ns t si inhibition time of sense input 300 ns v shys sense hysteresis 40 mv operational amplifier v icm common mode input voltage range 0 to v cc + - 1.5 v v io input offset voltage 10 mv i io input offset current 1 pa i o output short circuit current (v id = 100mv, v o = 0v) 60 ma v ol low level output voltage (v id = -100mv) 20 mv v oh high level output voltage (v id = 100mv, r l = 100k w ) 8.9 v gbp gain bandwidth product 1 mhz a vd open loop gain 60 db sr slew rate at unity gain (r l = 100k w , c l = 100pf, v i = 3 to 7v) 0.6 v/ m s TD300 3/8
tli tdh input a/b/c output a/b/c timing 1 timing 2 input a/b/c output a/b/c sense ts tel ta alarm teh enable under voltage tai tdl timing diagram TD300 4/8
15v control unit enable alarm interrupt ad converter level controlled input pulse controlled inputs 15v TD300 vz = 15v 3 phases motor rsense on off mcu signals pulse transformer 1/3 fil-mag 42z4056 or 23z284smd 1 m f high voltage typical applications figure 1 : three phase motor high and low side drive TD300 5/8
t4 t6 t2 motor t3 t5 t1 vd l6380 l6380 l6380 t d 3 0 0 keyboard display st6 m p b u f f e r figure 2 : three phase motor low side drive +15v load load load rsense 1 m f figure 3 : low side drive TD300 6/8
package mechanical data 14 pins - plastic dip dimensions millimeters inches min. typ. max. min. typ. max. a1 0.51 0.020 b 1.39 1.65 0.055 0.065 b 0.5 0.020 b1 0.25 0.010 d 20 0.787 e 8.5 0.335 e 2.54 0.100 e3 15.24 0.600 f 7.1 0.280 i 5.1 0.201 l 3.3 0.130 z 1.27 2.54 0.050 0.100 TD300 7/8
package mechanical data 14 pins - plastic micropackage (so) dimensions millimeters inches min. typ. max. min. typ. max. a 1.75 0.069 a1 0.1 0.2 0.004 0.008 a2 1.6 0.063 b 0.35 0.46 0.014 0.018 b1 0.19 0.25 0.007 0.010 c 0.5 0.020 c1 45 o (typ.) d 8.55 8.75 0.336 0.334 e 5.8 6.2 0.228 0.244 e 1.27 0.050 e3 7.62 0.300 f 3.8 4.0 0.150 0.157 g 4.6 5.3 0.181 0.208 l 0.5 1.27 0.020 0.050 m 0.68 0.027 s8 o (max.) information furnished is believed to be accurate and reliable. however, stmicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result f rom its use. no license is granted by implication or otherwise under any patent or patent rights of stmi croelectronics. specifications mentioned in this publication are subject to change without notice. this publication supersedes and replaces all information previously supplied. stmicroelectronics products are not authorized for use as critical components in life support devices or s ystems without express written approval of stmicroelectronics. ? the st logo is a trademark of stmicroelectronics ? 1998 stmicroelectronics C printed in italy C all rights reserved stmi croelectronics group of companies australia - brazil - canada - china - france - germany - italy - japan - korea - malaysia - malta - mexico - morocco the netherlands - singapore - spain - sweden - switzerland - taiwan - thailand - united kin gdom - u.s.a. TD300 8/8
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