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leshan radio company, ltd. 1/ 11 bias resistor transistors pnp silicon surface mount transistors with monolithic bias resistor network this new series of digital transistors is designed to replace a single device and its external resistor bias network. the brt (bias resistor transistor) contains a single transistor with a monolithic bias network consisting of two resistors; a series base resistor and a base-emitter resistor. the brt eliminates these individual components by integrating them into a single device. the use of a brt can reduce both system cost and board space. the device is housed in the sot-723 package which is designed for low power surface mount applications. ldta114em3t5g maximum ratings (t a = 25 c unless otherwise noted) rating symbol value unit collector-base voltage v cbo 50 vdc collector-emitter voltage v ceo 50 vdc collector current i c 100 madc thermal characteristics characteristic symbol max unit total device dissipation t a = 25 c derate above 25 c p d 260 (note 1) 600 (note 2) 2.0 (note 1) 4.8 (note 2) mw thermal resistance ? junction-to-ambient r ja 480 (note 1) 205 (note 2) c/w junction and storage temperature range t j ,t stg ?55 to +150 c 1. fr?4 @ minimum pad 2. fr?4 @ 1.0 x 1.0 inch pad pin 3 collector (output) pin 2 emitter (ground) pin 1 base (input) r 1 r 2 xx = specific device code m = date code marking diagram 3 2 1 xx m mw/ c ? simplifies circuit design ? reduces component count ? the sot-723 package can be soldered using wave or reflow. ? available in 4 mm, 8000 unit tape & reel ? ? reduces board space series sot-723 1 2 3 we declare that the material of product compliance with rohs requirements.
leshan radio company, ltd. 2/11 ldta114em3t5g_series ordering information, device marking and resistor values device marking r1 (k) r2 (k) package shipping ldta114em3t5g ldta124em3t5g ldta144em3t5g ldta114ym3t5g ldta114tm3t5g ldta143tm3t5g ldta123em3t5g ldta143em3t5g ldta143zm3t5g ldta124xm3t5g ldta123jm3t5g ldta115em3t5g ldta144wm3t5g 6a 6b 6c 6d 6e 6f 6h 6j 6k 6l 6m 6n 6p 10 22 47 10 10 4.7 2.2 4.7 4.7 22 2.2 100 47 10 22 47 47 2.2 4.7 47 47 47 100 22 sot?723 8000/tape & reel
leshan radio company, ltd. 3/11 ldta114em3t5g_series electrical characteristics (t a = 25 c unless otherwise noted) characteristic symbol min typ max unit off characteristics collector?base cutoff current (v cb = 50 v, i e = 0) i cbo ? ? 100 nadc collector?emitter cutoff current (v ce = 50 v, i b = 0) i ceo ? ? 500 nadc emitter?base cutoff current ldta114em3t5g (v eb = 6.0 v, i c = 0) ldta124em3t5g ldta144em3t5g ldta114ym3t5g ldta114tm3t5g ldta143tm3t5g ldta123em3t5g ldta143em3t5g ldta143zm3t5g ldta124xm3t5g ldta123jm3t5g ldta115em3t5g ldta144wm3t5g i ebo ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 0.5 0.2 0.1 0.2 0.9 1.9 2.3 1.5 0.18 0.13 0.2 0.05 0.13 madc collector?base breakdown voltage (i c = 10 a, i e = 0) v (br)cbo 50 ? ? vdc collector?emitter breakdown voltage (note 3.) (i c = 2.0 ma, i b = 0) v (br)ceo 50 ? ? vdc on characteristics (note 3.) dc current gain ldta114em3t5g (v ce = 10 v, i c = 5.0 ma) ldta124em3t5g ldta144em3t5g ldta114ym3t5g ldta114tm3t5g ldta143tm3t5g ldta123em3t5g ldta143em3t5g ldta143zm3t5g ldta124xm3t5g ldta123jm3t5g ldta115em3t5g ldta144wm3t5g h fe 35 60 80 80 160 160 8.0 15 80 80 80 80 80 60 100 140 140 250 250 15 27 140 130 140 150 140 ? ? ? ? ? ? ? ? ? ? ? ? ? collector?emitter saturation voltage (i c = 10 ma, i e = 0.3 ma) (i c = 10 ma, i b = 5 ma) ldta123em3t5g (i c = 10 ma, i b = 1 ma) ldta114tm3t5g/ldta143tm3t5g/ ldta143zm3t5g/ldta124xm3t5g/ldta143em3t5g v ce(sat) ? ? 0.25 vdc output voltage (on) (v cc = 5.0 v, v b = 2.5 v, r l = 1.0 k ) ldta114em3t5g ldta124em3t5g ldta114ym3t5g ldta114tm3t5g ldta143tm3t5g ldta123em3t5g ldta143em3t5g ldta143zm3t5g ldta124xm3t5g ldta123jm3t5g (v cc = 5.0 v, v b = 3.5 v, r l = 1.0 k ) ldta144em3t5g (v cc = 5.0 v, v b = 5.5 v, r l = 1.0 k ) ldta115em3t5g (v cc = 5.0 v, v b = 4.0 v, r l = 1.0 k ) ldta144wm3t5g v ol ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 vdc output voltage (off) (v cc = 5.0 v, v b = 0.5 v, r l = 1.0 k ) (v cc = 5.0 v, v b = 0.25 v, r l = 1.0 k ) ldta114tm3t5g ldta143tm3t5g ldta123em3t5g ldta143em3t5g v oh 4.9 ? ? vdc 3. pulse test: pulse width < 300 s, duty cycle < 2.0%
leshan radio company, ltd. 4/11 ldta114em3t5g_series electrical characteristics (t a = 25 c unless otherwise noted) (continued) characteristic symbol min typ max unit input resistor ldta114em3t5g ldta124em3t5g ldta144em3t5g ldta114ym3t5g ldta114tm3t5g ldta143tm3t5g ldta123em3t5g ldta143em3t5g ldta143zm3t5g ldta124xm3t5g ldta123jm3t5g ldta115em3t5g ldta144wm3t5g r1 7.0 15.4 32.9 7.0 7.0 3.3 1.5 3.3 3.3 15.4 1.54 70 32.9 10 22 47 10 10 4.7 2.2 4.7 4.7 22 2.2 100 47 13 28.6 61.1 13 13 6.1 2.9 6.1 6.1 28.6 2.86 130 61.1 k resistor ratio ldta114em3t5g/ldta124em3t5g/ldta144em3t5g / ldta115em3t5g ldta114ym3t5g ldta114tm3t5g/ldta143tm3t5g ldta123em3t5g/ldta143em3t5g ldta143zm3t5g ldta124xm3t5g ldta123jm3t5g ldta144wm3t5g r 1 /r 2 0.8 0.17 ? 0.8 0.055 0.38 0.038 1.7 1.0 0.21 ? 1.0 0.1 0.47 0.047 2.1 1.2 0.25 ? 1.2 0.185 0.56 0.056 2.6 figure 1. derating curve 250 200 150 100 50 0 ?50 0 50 100 150 t a , ambient temperature ( c) p d , power dissipation (milliwatts) r ja = 480 c/w 300
leshan radio company, ltd. 5/11 ldta114em3t5g_series typical electrical characteristics ? ldta114em3t5g v in , input voltage (volts) i c , collector current (ma) h fe , dc current gain (normalized) figure 2. v ce(sat) versus i c 100 10 1 0.1 0.01 0.001 0 v in , input voltage (volts) t a =?25 c 25 c 1 2 3 4 5 6 7 8 9 10 figure 3. dc current gain figure 4. output capacitance figure 5. output current versus input voltage figure 6. input voltage versus output current 0.01 20 i c , collector current (ma) v ce(sat) , maximum collector voltage (volts) 0.1 1 0 40 50 1000 1 10 100 i c , collector current (ma) t a =75 c ?25 c 100 10 0 i c , collector current (ma) 0.1 1 10 100 10 20 30 40 50 t a =?25 c 25 c 75 c 75 c i c /i b = 10 50 010203040 4 3 1 2 v r , reverse bias voltage (volts) c ob , capacitance (pf) 0 t a =?25 c 25 c 75 c 25 c v ce = 10 v f = 1 mhz l e = 0 v t a = 25 c v o = 5 v v o = 0.2 v
leshan radio company, ltd. 6/11 ldta114em3t5g_series typical electrical characteristics ? ldta124em3t5g v in , input voltage (volts) i c , collector current (ma) h fe , dc current gain (normalized) figure 7. v ce(sat) versus i c figure 8. dc current gain 1000 10 i c , collector current (ma) 100 10 1 100 figure 9. output capacitance i c , collector current (ma) 0 10 20 30 v o = 0.2 v t a =?25 c 75 c 100 10 1 0.1 40 50 figure 10. output current versus input voltage 100 10 1 0.1 0.01 0.001 0 1 2 3 4 v in , input voltage (volts) 5 6 7 8 9 10 figure 11. input voltage versus output current 0.01 v ce(sat) , maximum collector voltage (volts) 0.1 1 10 40 i c , collector current (ma) 0 20 50 75 c 25 c t a =?25 c 50 010 203040 4 3 2 1 0 v r , reverse bias voltage (volts) c ob , capacitance (pf) 25 c i c /i b = 10 25 c ?25 c v ce = 10 v t a =75 c f = 1 mhz l e = 0 v t a = 25 c 75 c 25 c t a =?25 c v o = 5 v
leshan radio company, ltd. 7/11 ldta114em3t5g_series typical electrical characteristics ? ldta144em3t5g v in , input voltage (volts) i c , collector current (ma) h fe , dc current gain (normalized) figure 12. v ce(sat) versus i c i c , collector current (ma) 1 0.1 0.01 010203040 75 c 25 c v ce(sat) , maximum collector voltage (volts) figure 13. dc current gain 1000 100 10 1 10 100 i c , collector current (ma) ?25 c figure 14. output capacitance figure 15. output current versus input voltage 100 10 1 0.1 0.01 0.001 010 25 c v in , input voltage (volts) ?25 c 50 010203040 1 0.8 0.6 0.4 0.2 0 v r , reverse bias voltage (volts) c ob , capacitance (pf) 123456 789 figure 16. input voltage versus output current 100 10 1 0.1 0 10 20 30 40 i c , collector current (ma) t a =?25 c 25 c 75 c 50 i c /i b = 10 t a =?25 c 25 c t a =75 c f = 1 mhz l e = 0 v t a = 25 c v o = 5 v t a =75 c v o = 0.2 v
leshan radio company, ltd. 8/11 ldta114em3t5g_series typical electrical characteristics ? ldta114ym3t5g 10 1 0.1 010 20 30 4050 100 10 1 0 246810 4.5 4 3.5 3 2.5 2 1.5 1 0.5 0 0 2 4 6 8 101520253035404550 v r , reverse bias voltage (volts) v in , input voltage (volts) i c , collector current (ma) h fe , dc current gain (normalized) figure 17. v ce(sat) versus i c i c , collector current (ma) 020406080 v ce(sat) , maximum collector voltage (volts) figure 18. dc current gain 1 10 100 i c , collector current (ma) figure 19. output capacitance figure 20. output current versus input voltage v in , input voltage (volts) c ob , capacitance (pf) figure 21. input voltage versus output current i c , collector current (ma) 1 0.1 0.01 0.001 ?25 c 25 c t a =75 c v ce = 10 v 180 160 140 120 100 80 60 40 20 0 2 4 6 8 15 20 40 50 60 70 80 90 f = 1 mhz l e = 0 v t a = 25 c load +12 v figure 22. inexpensive, unregulated current source typical application for pnp brts 25 c i c /i b = 10 t a =?25 c t a =75 c 25 c ?25 c v o = 5 v v o = 0.2 v 25 c t a =?25 c 75 c 75 c
leshan radio company, ltd. 9/11 ldta114em3t5g_series typical electrical characteristics ? ldta115em3t5g 75 c 25 c ?25 c figure 23. maximum collector voltage versus collector current figure 24. dc current gain figure 25. output capacitance figure 26. output current versus input voltage v in , input voltage (volts) v r , reverse bias voltage (volts) figure 27. input voltage versus output current i c , collector current (ma) i c , collector current (ma) 1 0.1 7 6 5 4 3 2 1 0 i c , collector current (ma) 100 10 1 100 10 1 0.01 1000 v ce(sat) , maximum collector voltage (volts) h fe , dc current gain (normalized) 1.2 0.6 60 50 40 30 20 10 0 0 c ob , capacitance (pf) 0.2 0.4 0.8 1.0 100 6 5 4 3 2 1 0 0.1 1 10 i c , collector current (ma) 10 9 8 7 100 12 10 8 6 4 2 0 1 10 18 16 14 20 v in , input voltage (volts) i c /i b = 10 75 c 25 c t a = ?25 c v ce = 10 v 75 c 25 c t a = ?25 c v o = 5 v v o = 0.2 v 75 c 25 c t a = ?25 c f = 1 mhz i e = 0 v t a = 25 c
leshan radio company, ltd. 10/11 ldta114em3t5g_series typical electrical characteristics ? ldta144wm3t5g figure 28. maximum collector voltage versus collector current figure 29. dc current gain figure 30. output capacitance figure 31. output current versus input voltage v in , input voltage (volts) v r , reverse bias voltage (volts) figure 32. input voltage versus output current i c , collector current (ma) i c , collector current (ma) 1 0.1 35 30 25 20 15 10 5 0 i c , collector current (ma) 100 10 1 100 10 0.01 1000 v ce(sat) , maximum collector voltage (volts) h fe , dc current gain (normalized) 1.4 0.6 60 50 40 30 20 10 0 0 c ob , capacitance (pf) 0.2 0.4 0.8 1.0 100 6 5 4 3 2 1 0 0.001 1 10 i c , collector current (ma) 11 9 8 7 100 15 10 5 0 1 10 20 25 v in , input voltage (volts) 50 45 40 0.1 0.01 10 1.2 f = 1 mhz i e = 0 v t a = 25 c 75 c 25 c t a = ?25 c v o = 5 v 75 c 25 c t a = ?25 c v o = 0.2 v 75 c 25 c t a = ?25 c i c /i b = 10 v ce = 10 v 75 c 25 c t a = ?25 c
11/11 ldta114em3t5g_series package dimensions d b1 e b e a l c h ?y? ?x? x 0.08 (0.0032) y 2x e 1 2 3 1.0 0.039 mm inches 0.40 0.0157 0.40 0.0157 0.40 0.0157 0.40 0.0157 0.40 0.0157 pin 1. base 2. emitter 3. collector dim min nom max millimeters a 0.45 0.50 0.55 b 0.15 0.20 0.27 b1 0.25 0.3 0.35 c 0.07 0.12 0.17 d 1.15 1.20 1.25 e 0.75 0.80 0.85 e 0.40 bsc h 1.15 1.20 1.25 l 0.15 0.20 0.25 0.018 0.020 0.022 0.0059 0.0079 0.0106 0.010 0.012 0.014 0.0028 0.0047 0.0067 0.045 0.047 0.049 0.03 0.032 0.034 0.016 bsc 0.045 0.047 0.049 0.0059 0.0079 0.0098 min nom max inches e notes: 1. dimensioning and tolerancing per ansi y14.5m, 1982. 2. controlling dimension: millimeters. 3. maximum lead thickness includes lead finish. minimum lead thickness is the minimum thickness of base material. 4. dimensions d and e do not include mold flash, protrusions or gate burrs. sot?723 soldering footprint leshan radio company, ltd.

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