TL595C

TL594I TI | Alldatasheet

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TEXAS INSTR (LIN/INTFC) 16— D MM 4961724 007959, 6 mm . TL594I, TL594C, TL595C PULSE-WIDTH-MODULATION CONTROL CIRCUITS 12712, APRIL 1980--REVISED OGTOBER 1088 Complete PWM Power Control Circuitry ‘TLE94!, TLES4C .. . D, J, OR N PACKAGE . © Uncommitted Outputs for 200-mA Sink or (TOP VIEW) TSB-U-3t j Source Current ERROR fiom weut Cf’ Ore Nonny INPUT) ERROR ’ @ Output Control Selects Single-Ended or AMP 1 INVINPUT (J? SL] INV INPUT AMP 2. Push-Pull Operation Feepeack (js EL] REF OUT DEAD-TIME CONTROL (4 13] OUTPUT CONTROL © Internal Circultry Prohibits Double Pulse at ers 2b vec Either Output ards 1fc2 eno C7 of} £2 © Varlable Dead-Time Provides Control Over ot Cle __ afer : Total Range | © Internal Regulator Provides a Stable 5-V DUA aS ACKAGE 2 Reference Supply Trimmed to 1% (To? View) 1 © Ciroult Architecture allows Easy ennon wownw wer fy CT] Nonny Pur} ERROR 2 Synchronization AMP 1 { wnvinpuT (]2 17) INV INPUT AMP 2 3 © Under-Voltage Lockout for Low Voc pene coramonswstlve = Conditions ¢rQ]s «Dourrur contro. a © TL595 has On-Chip 39-V Zener and External Rr Qe 19H] STEERING INPUT £ Control of Output Steering id 4 pp veo a description &1 Cle _sohe2 Tho TL594 and TLE9S devices each Incorporates FUNCTION TABLE on a single monolthic chip all the functions -——ysgzg———J required In the construction of a pulse-width- : modulation control circuit. Designed primarily for ourpur | STEERING OUTPUT FUNCTION power supply control, these devices offer the |contRot| INPUT systems engineer the flexibility to tallor the power (71598 ONLY) supply control clrouitry to his application. Weo ‘Open | Singie-ended ot parallel oulput Mz Ve fe) ‘Normal tic ‘The TLS94 contains two error amplifiers, anon- | wevr| yea wit Onet at chip adjustable oscillator, a dead-time control | vz | i= Veet PWM Output et 2 comparator, pulse-steering control flip-flop, 5-V regulator with a precision of 1%, an under- voltage lockout control circuit, and output control circuitry. , ‘The error amplifiers exhibit a common-mode voltage range from —0.3V to Voc ~2V. The dead-time control comparator has a fixed offset that provides approximately 5% dead time when externally altered. The on-chip oscillator may be bypassed by terminating Rt (pin6) to the reference output and providing a sawtooth Input to Cr (pin6), or It may be used to drive the ‘common circuitry in synchronous multiple-rail power supplies. The uncommitted output transistors provide either common-emitter or emitter-follower output capablity. Each device provides for push-pull or single-ended output operation with selection by treat tet de ary ar we Copy © 1988, Tes nouns orporaled eect alts tt det TEXAS 2-143 fecuaary inde tetog af A parameters INSTRUMENTS OST OFFICE BOK BHEDI2 + OALLAS, TEXAS 75208 i

TEXAS INSTR (LIN/INTFC) 16E D @@ 8961724 0079592 6 oe ; TL5941, TL594C, TL595C _ 3 PULSE-WIDTH-MODULATION CONTROL CIRCUITS { T-58-11. 31 j description (continued) q . means of the output-control function, The architecture of these devices prohibits the possibility of either y output being pulsed twice during push-pull operation. The undervoltage lockout control circuit locks the 7 outputs off until the internal circuitry Is operational, The TLSQ5 provides the identical functions found in the TL594. In addition, the TL595 also contains an on-chip 89-V zener diode for high-voltage applications where Vcc Is greater than 40 V, and an output steering contrat that overrides the internal control of the pulse-steering flip-flop. The TLS94I is characterized for operation from ~25°C to 85°C. The TL594C and TL59SC are characterized for ‘operation from 0°C to 70°C, 2 functional block diagram 9 [Stennis eur] 3 toes FUNCTION Tanta | St FONEAION Taste no Ar. Lo -|--- ag = avy] emanate oT TROL ry NoNAVERTING INPUT > PUT ERROR AMPLIFIER veo NONIVERTING ‘UNDERVOLTAGE iNeur ‘ocout = e WweUr REGULATOR T1504 AND T1595 REF OUT FEEDBACK © i ‘ano CIRAL 1 LM sss omy ey

2144 Texas ¥

POST OFFICE BOX 656012 + OALLAS, TEXAS 75288

TEXAS INSTR (LIN/INTFC) 18E D M@ 4961724 0079593 T mm : TL5941, TL594C, TL595C : PULSE-WIDTH-MODULATION CONTROL CIRCUITS absolute maximum ratings over operating free-alr temperature range (unless otherwise noted) [Suppiyvolage,Voo@eeNowA) aa [Cotectorouputvotages aa VI [Colecioroutputeurent Tas [Operating free-artomperaturerange et OWT TO j [Load temperature 1.6mm (116 inch) from case for 10 seconds: Dor package 260 | a0 SY t NOTE 1: All voltage values, except dtferental voltages, are with respect to the network ground terminal. g ‘ DISSIPATION RATING TABLE 3 Ta = 256 DERATING DERATE Ta= 706 er a POWER RATING FACTOR ABOVE Ta POWER RATING POWER RATING . 950 mW 7.6 miWPO wo 608 mW 7484 mW sg J 1000 mW 8.2 mWPC 28°C 656 mW 533 mW bY N 1000 mW 9.2 mWPC ae 796 mW 598 mW a recommended operating conditions TLs940 Pa ti [aan wax [MIN MAX | [afer nut votgea “dC 08 em | =08 Yoo |v | [Collector ouiputvoliaga. Vo PV Gollector output current (each transistor) [200 [200 ma [Gurentintoteedbacktominal TO Ts A [Timing capaciton Cr h7 F000 | a7 10.000 | _ [Timingrosiston Rp | oo YOO | [Oscitatortiequency 0 |e [Oreraing Wec-irtempersture, Ta CY es POO | ES , TEXAS % 2-146 INSTRUMENTS POST OFFICE 80K 655012 + DALLAS, TEXAS 76265

TEXAS INSTR (LIN/INTFC) 18E D MM 8961724 0079594 1 me | TL5Q4I, TL594C, TL595C - : PULSE-WIDTH-MODULATION CONTROL CIRCUITS : T-58~11-31 j i . electrical characteristics over recommended operating free-air temperature range, Voc = 15 V { (unless otherwise noted) i reference section ‘ z [_—paraweren—[___ vest conirionst [win ave wax [Un] [inputreguaion _|Vog=7Vwav, tan [Outputregulaion lp ttofOma Tana as | Output voltage change ea [Shotcreut ovpatcuren® —|We=O_ | || oscillator section (see Figure 2) 9 [___Parawerer [tes conormionst Twin ave wax [unit FS a ©) [Standard deviation offequena® | Aivawes ofVoo, Or. Rr. Taconsiant | tT QD [Frequency change win volage —|Vog=7ViedV, Tan 28 B_[Frecuency change with temperature [ATA = MINtoMAK : oO @ amplifier sections (see Figure 1) [—___ananeten [Tes eonomions nave [on] [inpatofvervoago, eroramipiter _—_|Feedtackpinatasv TOT | [inputofsetcurent————_—‘( Feedback contolat@8V | 88 A _| ‘Common-mode input voltage range, error - °. . Voo-2 ‘Open-loap voltage amplification, error Vo =3V, = se fe [Uniy-ganbandwamh ———~«<iNo=osVioasv, eam | aoe | [Common-mode rjecton ato, eworamplfar|Vog=40V,___Ta=250 | || [Ouiputsinkcurent (ping) [Vi = ~T8 mVio -SV,_Fesdback conioiatOBV [0307 | ma_| [Ouputcource curont(pinsy—__[Vip= Tmviosv, Feedtackatasv [2 | SA | t For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. . + All typical values except for parameter changes with temperature are at Ta = 25°C, 5 Duration of the short-circuit should not exceed one second. ‘Standard deviation Is a measure of the statistical distribution about the mean as derived from the formula Eq - X)? ee fet N-1 nr Texas % 2-146 INSTRUMENTS post ofrce Ox oE5012 + DALLAS, TEXAS 78208 t i i

. j TEXAS INSTR (LIN/INTFC) 18E D m@ 4961724 0079595 3 mmf q - TL5941, TL594C, TL59SC 2 PULSE-WIDTH-MODULATION CONTROL CIRCUITS , j ———EEE—EE ee i electrical characteristics over recommended operating free-alr temperature range, Vec = 15 V | . (unless otherwise noted) . 4 dead-time control section (see Figure 2) T-58-11-31 4 a [inputs eventing) eee OTA [Maximum duty cycle, eachoutput_____|Deadimaconvolatov | KT output section ee CSC : [Woe=a0v, Vog=aov 00 | g t Vo = 18¥, Ve=0W, ‘Collector oft state currant Veg = 1103¥, 3 i Dead:time and output control pins at 0V = [Eniierofsatecuret ———_—‘|Woc=Vo=40v, Ve=o | too | a % [Cofector-emitter [Commonemiter [Ve=0, ig=200ma ta Ty Ss : saturation voltage [Emiterfolower|Vo=15¥, te = =200mA [828 | 3 [Ouiputconterineteuret dM Wt LT A | 2 pwm comparator section (see Figure 2) [——__—anaweren | Test eonomions [ant veF_ tax [on] [Taput reshotd voltage (ping) _———~—=dzavodulyeyelo eV [inputsink curont(ping)—————~—SSS«dMping eV 8 under-voltage lockout section (see Figure 2) [(——____PaaweveR Tes conoiriont win Max] UniT | ee [moreso 0 total device (see Figure 2) . [—anaweten | ____ Ye cowormions [nave wiae [or] Fin 6 al Veet. oo tsv [a 18 | Stanaby supply curent Jat cthar inputs and outpute open [Woo= «ov 1 | ™ mono foe | | All ypical values except for parameter changes with temperature are at Ta = 25°C. + For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. ' Hysteresis is the differonco between the positive-going input threshold voltage and the negative-going input threshold voltage, eT EEUU UTE IEEE EES EEEEREE! Teas Y 2-147 INSTRUMENTS POST OFFICE GOX O58O12 + DALLAS, TEXAS 75208

2 PARAMETER MEASUREMENT INFORMATION

9 UNDER TEST

3 OE meme

FIGURE 1. AMPLIFIER CHARACTERISTICS

0.01 HF ey STEERING] =

FIGURE 2. OPERATIONAL TEST CIRCUIT AND WAVEFORMS

FIGURE 4. EMITTER-FOLLOWER CONFIGURATION

TEXAS INSTR (LIN/INTFC) 16E D M@@ 8961724 0079599 0 a TL5941, TL594C, TL595C PULSE-WIDTH-MODULATION CONTROL CIRCUITS a . TYPICAL CHARACTERISTICS TSH \\ 3) OSCILLATOR FREQUENCY and AMPLIFIER VOLTAGE AMPLIFICATION FREQUENCY VARIATION? vs. vs TIMING RESISTANCE 100 FREQUENCY

100 K eee rEg

Cai i} ML ell 2. 80 Ta = 25°C Tt Ant a F++At r FHine timer fet +t AT ¢ LLL rn Ts = LET TT UTN 1k 4k 10k 40k 100k 400k 1M 4 10 100 1k 10k 100k 1M Ry—Timing Resistance—2 f—Frequency—Hz FIGURE 5 FIGURE 6 + Frequency variation (af) is the change in oscillator frequency that occurs over the full temperature range. a Texas % 2-151 INSTRUMENTS