TL494M, TL494Y PULSE-WIDTH-MODULATION CONTROL CIRCUITS SLVS074A - JANUARY 1983 - REVISED AUGUST 1995 * * * * * Complete PWM Power Control Circuitry TL494C, TL494I . . . D, N, OR PW PACKAGE TL494M . . . J PACKAGE (TOP VIEW) Uncommitted Outputs for 200-mA Sink or Source Current Output Control Selects Single-Ended or Push-Pull Operation 1IN + 1 16 2IN + 1IN - 2 15 2IN - FEEDBACK 3 14 REF DTC 4 13 OUTPUT CTRL CT 5 12 RT 6 11 VCC C2 GND 7 10 E2 C1 8 9 E1 Internal Circuitry Prohibits Double Pulse at Either Output Variable Dead Time Provides Control Over Total Range Internal Regulator Provides a Stable 5-V Reference Supply With 5% Tolerance TL494M . . . FK PACKAGE Circuit Architecture Allows Easy Synchronization (TOP VIEW) 1IN- 1IN+ NC 2IN+ 2IN- * * description FEEDBACK DTC NC CT RT The TL494 contains two error amplifiers, an on-chip adjustable oscillator, a dead-time control (DTC) comparator, a pulse-steering control flip-flop, a 5-V, 5%-precision regulator, and output-control

TL494M, TL494Y PULSE-WIDTH-MODULATION CONTROL CIRCUITS SLVS074A - JANUARY 1983 - REVISED AUGUST 1995 * * * * * Complete PWM Power Control Circuitry TL494C, TL494I . . . D, N, OR PW PACKAGE TL494M . . . J PACKAGE (TOP VIEW) Uncommitted Outputs for 200-mA Sink or Source Current Output Control Selects Single-Ended or Push-Pull Operation 1IN + 1 16 2IN + 1IN - 2 15 2IN - FEEDBACK 3 14 REF DTC 4 13 OUTPUT CTRL CT 5 12 RT 6 11 VCC C2 GND 7 10 E2 C1 8 9 E1 Internal Circuitry Prohibits Double Pulse at Either Output Variable Dead Time Provides Control Over Total Range Internal Regulator Provides a Stable 5-V Reference Supply With 5% Tolerance TL494M . . . FK PACKAGE Circuit Architecture Allows Easy Synchronization (TOP VIEW) 1IN- 1IN+ NC 2IN+ 2IN- * * description FEEDBACK DTC NC CT RT The TL494 contains two error amplifiers, an on-chip adjustable oscillator, a dead-time control (DTC) comparator, a pulse-steering control flip-flop, a 5-V, 5%-precision regulator, and output-control

the functions required in the construction of a pulse-width-modulation control circuit. Designed primarily for power supply control, this device offers the systems engineer the flexibility to tailor the power supply control circuitry to a TL494C, TL494I, TL494M, TL494Y PULSE-WIDTH-MODULATION CONTROL CIRCUITS SLVS074A - JANUARY 1983 - REVISED AUGUST 1995 TL494C, TL4941... D, N, OR PW PACKAGE TL494M... J PACKAGE TIN+ 1IN~ FEEDBACK oTc cT RT GND C1 (TOP VIEW) ] 2IN+ 2in- REF Vcc ce E2 9f) 1 @rN oma wnD = nn f) OUTPUT CTRL TL496M,.. FK PACKAGE (TOP VIEW) zz - FEEDBACK DTC NC CT RT gzz NU i7Q 16(] 15( C ant aa & 14 9 10 11 12 13 3 2 1 2019 18(] REF OUTPUT CTRL NC Voc c2 specific application. 95908 The TL494 contains two error amplifiers, an So on-chip adjustable oscillator, a dead-time control NC - No internal connection (DTC) comparator, a pulse-steering control flip-flop, a 5-V, 5%-precision regulator, and FUNCTION TABLE output-control circuits. INPUT TO The error amplifiers exhibit a

TL494M, TL494Y PULSE-WIDTH-MODULATION CONTROL CIRCUITS SLVS074A - JANUARY 1983 - REVISED AUGUST 1995 * * * * * Complete PWM Power Control Circuitry TL494C, TL494I . . . D, N, OR PW PACKAGE TL494M . . . J PACKAGE (TOP VIEW) Uncommitted Outputs for 200-mA Sink or Source Current Output Control Selects Single-Ended or Push-Pull Operation 1IN + 1 16 2IN + 1IN - 2 15 2IN - FEEDBACK 3 14 REF DTC 4 13 OUTPUT CTRL CT 5 12 RT 6 11 VCC C2 GND 7 10 E2 C1 8 9 E1 Internal Circuitry Prohibits Double Pulse at Either Output Variable Dead Time Provides Control Over Total Range Internal Regulator Provides a Stable 5-V Reference Supply With 5% Tolerance TL494M . . . FK PACKAGE Circuit Architecture Allows Easy Synchronization (TOP VIEW) 1IN- 1IN+ NC 2IN+ 2IN- * * description FEEDBACK DTC NC CT RT The TL494 contains two error amplifiers, an on-chip adjustable oscillator, a dead-time control (DTC) comparator, a pulse-steering control flip-flop, a 5-V, 5%-precision regulator, and output-control

TL494M, TL494Y PULSE-WIDTH-MODULATION CONTROL CIRCUITS @ Complete PWM Power Control Circuitry Uncommitted Outputs for 200-mA Sink or Source Current Output Control Selects Single-Ended or Push-Pull Operation @ = Internal Circultry Prohibits Double Puise at Either Output Variable Dead Time Provides Control Over Total Range Internal Regulator Provides a Stable 5-V Reference Supply With 5% Tolerance Circuit Architecture Allows Easy Synchronization description The TL494 incorporates on a single monolithic chip ail the functions required in the construction of a _pulse-width-modulation control circuit. Designed primarily for power supply contral, this device offers the systems engineer the flexibility to tailor the power supply control circuitry to a SLVS074A ~ JANUARY 1983 REVISED AUGUST 1995 TLA94C, TL4941... D, N, OR PW PACKAGE TL494M .... J PACKAGE (TOP VIEW) TIN+[] 4 Y 16[] 2IN+ 1iN-[J 2 15]] 2IN- FEEDBACK [}3 14] REF DTG [} 4 13[] OUTPUT CTRL cTjs 121] Voc RTI} 6 11] c2 GND fj 7 10]

ERING INFORMATION Grauna[ 7 | 19 Jez Yoh riyce Temperature Qi a2 Device Range Package cifa ar [3 Jer a) {io} e2 - TL494CN 0 To 70C Plastic DIP (Top View) (Top View! TL494CJ 0 To 70C Ceramic DIP TL4941N ~ 25 To 85C Plastic DIP TL4941J 25 To 85C Ceramic DIP TL494MJ 55 To 125C Ceramic DIP The TL494C/495C are specified over the commercial Operating range of OC to 70C. The TL4941/495! are specified over the in- TL495CN 0 To 70C Plastic DIP dustrial range of 25C to 85C. The TL494M is specified over the TLA95CJ 0 To 70C Ceramic DIP a _ RRO, 6 full military range of 55C to 125C. TLA95IN 28 To aS"C Plastic DIP TL4951J 25 To 85C Ceramic DIP MOTOROLA LINEAR/INTERFACE DEVICES 4-319TL494, TL495 FIGURE 1 BLOCK DIAGRAM Steering Control Output Control Vcc 9 f 13(14) j 6(6) i 8(8) Oscillator D Q Qi 919) RT Fli p- < Cr z 55) Dead-Time Flop | = J dn, = Comparator ck @ a2 | 1111) =0.12V = | I + o 4 10(10 aia) 07 V no} Dead-Time - Control - = 12(12) + _ P.W.M. J Comparator I =0.7 mA Reference _o Regulato

sciiator 12]vce 4] C2 Ye | WO JE2 ar (top view! 16 ry LT! N SUFFIX PLASTIC PACKAGE CASE 648 ORDERING INFORMATION The TL494C is specified over the commercial operating range of 0C to 70C. The TL494I is specified over the industrial range of 25C to 85C. The TL494M is specified over the full military range of 55C to 125C. Temperature Device Range Package TL4g4CN oe 5 Plastic DIP TLag4cJ Oto +70 | Ceramic DIP TLA94IN 3 < Plastic DIP TLagalJ ~ 25 to +85C | Ceramic DIP TL494MJ - 55 to + 125C | Ceramic DIP | MOTOROLA LINEAR INTERFACE DEVICES 3-336TL494 FIGURE 1 BLOCK DIAGRAM Output Control 13 Oscillator Dead-Time |}_____4 Comparator ck OG {OH Gln Q12Vv q LV 41 ar tT 10 Dead-Time 07 Control 12 = _ PWM Vcc =o Comparator = 4gv a7 mA Lockout 4 * Reference ~ 4 mn Regulator 1 2 = - - 3s5vi 1 | | 2 3 15 | | 16 14 7 20 o ao 6 2 Gnd Error Amp Feedback P WM Error Amp Ref = 1 Comparator Input 2 Output FIGURE 2 TIMING DIAGRAM Capacitor CT _ FeedbackP.W.M. Comp AAAAAAAZA: Dead-Time Control Flip-Flop Clo

IRCUIT SILICON MONOLITHIC INTEGRATED CIRCUITS J SUFFIX CERAMIC PACKAGE CASE 620 N SUFFIX PLASTIC PACKAGE CASE 648 ORDERING INFORMATION Temperature Device Range Package TL494CN Plastic - 0 to +70C TL494CJ5 Ceramic TL494iN Plastic 25 to +85C TL4941J Ceramic TL494MJ 55 to +125C Ceramic MOTOROLA LINEAR/INTERFACE ICs DEVICE DATA 3-460TL494 MAXIMUM RATINGS (Full operating ambient temperature range applies, unless otherwise noted.) Rating Symbol TL494C | TL4941 TL494M Unit Power Supply Voltage Voc 42 Vv Collector Output Voltage Vo1. Vo2 42 Vv Collector Output Current (Each transistor) (Note 1) | Ic4, !c2 500 mA Amplifier Input Voltage Range VIR ~0.3 to +42 v Power Dissipation @ Ta < 45C Pp 1000 mw Operating Junction Temperature Ty C Plastic Package 125 _ Ceramic Package 150 Storage Temperature Range Tstg C Plastic Package 5 to +125 _ Ceramic Package -65 to +150 Operating Ambient Temperature Range Ta O0to+70 | -25to+85 | ~55 to +125 C NOTES: 1. Maximum thermal limits must be observed. THERMA

e LR BE MS Veco BEE PITS E RA ZY = + RAMS. Veco * Vin: Vour ! four : : 1.0W (7,=25C,J,N-7-Y) Pp te1) Tope + (NS So 7 ERR ) Hl. Tstg * Thin 3 Th2, FRA RARE O Bi, PERE LU CKACHT. oY] 41V Vect0.3V (ite WR BF A 7) 41V 250mA 500mW (T,=25C, NS sv 7-7) 55~ +125 (TL494M) 25~+85C (TL4941) 20~+85 (TL493C/ TL494C/TL495C ) 65~+ 150C 300C 60sec (J Sv 7 -Y) 260C: 10sec (N, NS vv 7-Y) Ta=25C WA Ett AERC LS. MRE (Vec=15V,f=10kHz, T.= Si aA (YE 1), typ fit T= 25C esd Sie) vE 1. SHR MPH TL494M : 55~+ 125, TL4941,: 25~+85C, TL493C, TL494C, TL495C : O~+70C a4 mee TEAR, THABHT/C THAIEC] a ds meh | Re RK Tanay |= Vane Voc=15V 6 | 10 ae HOw Fist BR Vec=40V 9 | 15 9 | 15 a Tec | Va=2V( 8 1 BA) 75 7.5 mA aad Aztew2em) x @ | 2 4 | # 4@ Vio |Vrs=2.5V 2 | 10 2 | 10 | mv TI TL494 | TL495 To Vm=2.5V 25 | 250 25 | 250 | nA FC wA494 Te Vrs=2.5V 02) 1 o2 | 1 | #A MoT | TL494 | TL495 G, |AVour=3V, Vour=0.5~3.5V 70 | 95 70 | 95 dB #438 | MB3759 | MB3760 Vi |Vee=7~40V 0.3~Vec2 min | 0.3~Vec2 min | V ay. | HA17494 CMR |

e LR BE MS Veco BEE PITS E RA ZY = + RAMS. Veco * Vin: Vour ! four : : 1.0W (7,=25C,J,N-7-Y) Pp te1) Tope + (NS So 7 ERR ) Hl. Tstg * Thin 3 Th2, FRA RARE O Bi, PERE LU CKACHT. oY] 41V Vect0.3V (ite WR BF A 7) 41V 250mA 500mW (T,=25C, NS sv 7-7) 55~ +125 (TL494M) 25~+85C (TL4941) 20~+85 (TL493C/ TL494C/TL495C ) 65~+ 150C 300C 60sec (J Sv 7 -Y) 260C: 10sec (N, NS vv 7-Y) Ta=25C WA Ett AERC LS. MRE (Vec=15V,f=10kHz, T.= Si aA (YE 1), typ fit T= 25C esd Sie) vE 1. SHR MPH TL494M : 55~+ 125, TL4941,: 25~+85C, TL493C, TL494C, TL495C : O~+70C a4 mee TEAR, THABHT/C THAIEC] a ds meh | Re RK Tanay |= Vane Voc=15V 6 | 10 ae HOw Fist BR Vec=40V 9 | 15 9 | 15 a Tec | Va=2V( 8 1 BA) 75 7.5 mA aad Aztew2em) x @ | 2 4 | # 4@ Vio |Vrs=2.5V 2 | 10 2 | 10 | mv TI TL494 | TL495 To Vm=2.5V 25 | 250 25 | 250 | nA FC wA494 Te Vrs=2.5V 02) 1 o2 | 1 | #A MoT | TL494 | TL495 G, |AVour=3V, Vour=0.5~3.5V 70 | 95 70 | 95 dB #438 | MB3759 | MB3760 Vi |Vee=7~40V 0.3~Vec2 min | 0.3~Vec2 min | V ay. | HA17494 CMR |

PDAU Level-1-260C-UNLIM TL494IDRG4 ACTIVE SOIC D 16 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL494IN ACTIVE PDIP N 16 25 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type TL494INE4 ACTIVE PDIP N 16 25 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type TL494MJ OBSOLETE CDIP J 16 TBD Call TI Call TI TL494MJB OBSOLETE CDIP J 16 TBD Call TI Call TI (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) -

PDAU Level-1-260C-UNLIM TL494IDRE4 ACTIVE SOIC D 16 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL494IN ACTIVE PDIP N 16 25 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type TL494INE4 ACTIVE PDIP N 16 25 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type TL494MJ OBSOLETE CDIP J 16 TBD Call TI Call TI TL494MJB OBSOLETE CDIP J 16 TBD Call TI Call TI TBD Addendum-Page 1 Call TI Call TI Call TI PACKAGE OPTION ADDENDUM www.ti.com 12-Jan-2006 (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-fr

ndum-Page 1 Call TI Call TI Call TI PACKAGE OPTION ADDENDUM www.ti.com 28-May-2007 Orderable Device Status (1) Package Type Package Drawing Pins Package Eco Plan (2) Qty TL494IDRG4 ACTIVE SOIC D 16 TL494IN ACTIVE PDIP N 16 25 TL494INE4 ACTIVE PDIP N 16 25 TL494MJ OBSOLETE CDIP J TL494MJB OBSOLETE CDIP J Lead/Ball Finish MSL Peak Temp (3) no Sb/Br) 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type 16 TBD Call TI Call TI 16 TBD Call TI Call TI (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be avai

PDAU Level-1-260C-UNLIM TL494IDRG4 ACTIVE SOIC D 16 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL494IN ACTIVE PDIP N 16 25 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type TL494INE4 ACTIVE PDIP N 16 25 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type TL494MJ OBSOLETE CDIP J 16 TBD Call TI Call TI TL494MJB OBSOLETE CDIP J 16 TBD Call TI Call TI (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) -

L494ID ACTIVE SOIC D 16 40 Pb-Free (RoHS) CU NIPDAU Level-2-260C-1 YEAR/ Level-1-235C-UNLIM TL494IDR ACTIVE SOIC D 16 2500 Pb-Free (RoHS) CU NIPDAU Level-2-260C-1 YEAR/ Level-1-235C-UNLIM TL494IN ACTIVE PDIP N 16 25 Pb-Free (RoHS) CU NIPDAU Level-NC-NC-NC TL494MJ OBSOLETE CDIP J 16 TBD Call TI Call TI TL494MJB OBSOLETE CDIP J 16 TBD Call TI Call TI Call TI (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS) or Green (RoHS & no Sb/Br) - please check htt