TL594 TI | Alldatasheet
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/C0084/C0076/C0053/C0057/C0052 /C0080/C0085/C0076/C0083/C0069/C0262/C0087/C0073/C0068/C0084/C0072/C0262/C0077/C0079/C0068/C0085/C0076/C0065/C0084/C0073/C0079/C0078 /C0067/C0079/C0078/C0084/C0082/C0079/C0076 /C0067/C0073/C0082/C0067/C0085/C0073/C0084 /C0261 SLVS052F − APRIL 1988 − REVISED NOVEMBER 2003 1POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 /C0068Complete PWM Power-Control Circuitry /C0068Uncommitted Outputs for 200-mA Sink or Source Current /C0068Output Control Selects Single-Ended or Push-Pull Operation /C0068Internal Circuitry Prohibits Double Pulse at Either Output /C0068Variable Dead Time Provides Control Over Total Range /C0068Internal Regulator Provides a Stable 5-V Reference Supply Trimmed to 1% /C0068Circuit Architecture Allows Easy Synchronization /C0068Undervoltage Lockout for Low-VCC Conditions description/ordering information The TL594 incorporates all the functions required in the construction of a pulse-width-modulation (PWM) control circuit on a single chip. Designed primarily for power-supply control, this device offers the systems engineer the flexibility to tailor the power-supply control circuitry to a specific application. The TL594 contains two error amplifiers, an on-chip adjustable oscillator, a dead-time control (DTC) comparator, a pulse-steering control flip-flop, a 5-V regulator with a precision of 1%, an undervoltage lockout control circuit, and output control circuitry. The error amplifiers have a common-mode voltage range of −0.3 V to V CC − 2 V. The DTC comparator has a fixed offset that provides approximately 5% dead time. The on-chip oscillator can be bypassed by terminating RT to the reference output and providing a sawtooth input to CT, or it can 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 capability. Each device provides for push-pull or single-ended output operation, with selection by means of the output-control function. The architecture of these devices prohibits the possibility of either output being pulsed twice during push-pull operation. The undervoltage lockout control circuit locks the outputs off until the internal circuitry is operational. The TL594C is characterized for operation from 0°C to 70°C. The TL594I is characterized for operation from −40°C to 85°C. Copyright 2003, Texas Instruments Incorporated/C0080/C0082/C0079/C0068/C0085/C0067/C0084/C0073/C0079/C0078 /C0068/C0065/C0084/C0065 /C0105/C0110/C0102/C0111/C0114/C0109/C0097/C0116/C0105/C0111/C0110 /C0105/C0115 /C0099/C0117/C0114/C0114/C0101/C0110/C0116 /C0097/C0115 /C0111/C0102 /C0112/C0117/C0098/C0108/C0105/C0099/C0097/C0116/C0105/C0111/C0110 /C0100/C0097/C0116/C0101/C0046 /C0080/C0114/C0111/C0100/C0117/C0099/C0116/C0115 /C0099/C0111/C0110/C0102/C0111/C0114/C0109 /C0116/C0111 /C0115/C0112/C0101/C0099/C0105/C0102/C0105/C0099/C0097/C0116/C0105/C0111/C0110/C0115 /C0112/C0101/C0114 /C0116/C0104/C0101 /C0116/C0101/C0114/C0109/C0115 /C0111/C0102 /C0084/C0101/C0120/C0097/C0115 /C0073/C0110/C0115/C0116/C0114/C0117/C0109/C0101/C0110/C0116/C0115 /C0115/C0116/C0097/C0110/C0100/C0097/C0114/C0100 /C0119/C0097/C0114/C0114/C0097/C0110/C0116/C0121/C0046 /C0080/C0114/C0111/C0100/C0117/C0099/C0116/C0105/C0111/C0110 /C0112/C0114/C0111/C0099/C0101/C0115/C0115/C0105/C0110/C0103 /C0100/C0111/C0101/C0115 /C0110/C0111/C0116 /C0110/C0101/C0099/C0101/C0115/C0115/C0097/C0114/C0105/C0108/C0121 /C0105/C0110/C0099/C0108/C0117/C0100/C0101 /C0116/C0101/C0115/C0116/C0105/C0110/C0103 /C0111/C0102 /C0097/C0108/C0108 /C0112/C0097/C0114/C0097/C0109/C0101/C0116/C0101/C0114/C0115/C0046 /C0261 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 1IN+ 1IN− FEEDBACK DTC CT RT GND 2IN+ 2IN− REF OUTPUT CTRL VCC D, N, NS, OR PW PACKAGE (TOP VIEW)
/C0084/C0076/C0053/C0057/C0052 /C0080/C0085/C0076/C0083/C0069/C0262/C0087/C0073/C0068/C0084/C0072/C0262/C0077/C0079/C0068/C0085/C0076/C0065/C0084/C0073/C0079/C0078 /C0067/C0079/C0078/C0084/C0082/C0079/C0076 /C0067/C0073/C0082/C0067/C0085/C0073/C0084 /C0261 SLVS052F − APRIL 1988 − REVISED NOVEMBER 2003
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description/ordering information (continued)
ORDERING INFORMATION
TA PACKAGE † ORDERABLE PART NUMBER TOP-SIDE MARKING PDIP (N) Tube of 25 TL594CN TL594CN SOIC (D) Tube of 40 TL594CD TL594C 0°C to 70°C SOIC (D) Reel of 2500 TL594CDR TL594C 0°C to 70°C SOP (NS) Reel of 2000 TL594CNSR TL594 TSSOP (PW) Tube of 90 TL594CPW T594TSSOP (PW) Reel of 2000 TL594CPWR T594 PDIP (N) Tube of 25 TL594IN TL594IN SOIC (D) Tube of 40 TL594ID TL594I −40°C to 85°C SOIC (D) Reel of 2500 TL594IDR TL594I −40°C to 85°C SOP (NS) Reel of 2000 TL594INSR TL594I TSSOP (PW) Tube of 90 TL594IPW Z594TSSOP (PW) Reel of 2000 TL594IPWR Z594 † Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. FUNCTION TABLE INPUT OUTPUT CTRL OUTPUT FUNCTION VI = 0 Single-ended or parallel output VI = Vref Normal push-pull operation
/C0084/C0076/C0053/C0057/C0052 /C0080/C0085/C0076/C0083/C0069/C0262/C0087/C0073/C0068/C0084/C0072/C0262/C0077/C0079/C0068/C0085/C0076/C0065/C0084/C0073/C0079/C0078 /C0067/C0079/C0078/C0084/C0082/C0079/C0076 /C0067/C0073/C0082/C0067/C0085/C0073/C0084 /C0261 SLVS052F − APRIL 1988 − REVISED NOVEMBER 2003 3POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 functional block diagram GND REF VCC Reference Regulator Pulse-Steering Flip-Flop FEEDBACK DTC CT RT PWM Comparator Error Amplifier 2 Error Amplifier 1 ≈0.1 V DTC Comparator Oscillator OUTPUT CTRL (see Function Table) 0.7 mA Undervoltage Lockout Control IN+ IN− IN+ IN− absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† † Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. NOTES: 1. All voltage values, except differential voltages, are with respect to the network ground terminal. 2. Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable ambient temperature is PD = (TJ(max) − TA)/θJA. Operating at the absolute maximum TJ of 150°C can affect reliability. 3. The package thermal impedance is calculated in accordance with JESD 51-7.
/C0084/C0076/C0053/C0057/C0052 /C0080/C0085/C0076/C0083/C0069/C0262/C0087/C0073/C0068/C0084/C0072/C0262/C0077/C0079/C0068/C0085/C0076/C0065/C0084/C0073/C0079/C0078 /C0067/C0079/C0078/C0084/C0082/C0079/C0076 /C0067/C0073/C0082/C0067/C0085/C0073/C0084 /C0261 SLVS052F − APRIL 1988 − REVISED NOVEMBER 2003
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recommended operating conditions MIN MAX UNIT VCC Supply voltage 7 40 V VI Amplifier input voltage −0.3 VCC −2 V VO Collector output voltage 40 V Collector output current (each transistor) 200 mA Current into feedback terminal 0.3 mA C T Timing capacitor 0.47 10000 nF R T Timing resistor 1.8 500 kΩ fosc Oscillator frequency 1 300 kHz TA Operating free-air temperature TL594C 0 70 °C TA Operating free-air temperature TL594I −40 85 °C
/C0084/C0076/C0053/C0057/C0052 /C0080/C0085/C0076/C0083/C0069/C0262/C0087/C0073/C0068/C0084/C0072/C0262/C0077/C0079/C0068/C0085/C0076/C0065/C0084/C0073/C0079/C0078 /C0067/C0079/C0078/C0084/C0082/C0079/C0076 /C0067/C0073/C0082/C0067/C0085/C0073/C0084 /C0261 SLVS052F − APRIL 1988 − REVISED NOVEMBER 2003 5POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics over recommended operating conditions, VCC = 15 V, (unless otherwise noted) reference section PARAMETER TEST CONDITIONS † TL594C, TL594I UNITPARAMETER TEST CONDITIONS † MIN TYP ‡ MAX UNIT Output voltage (REF) IO = 1 mA, TA = 25°C 4.95 5 5.05 V Input regulation VCC = 7 V to 40 V, TA = 25°C 2 25 mV Output regulation IO = 1 to 10 mA, TA = 25°C 14 35 mV Output-voltage change with temperature ∆TA = MIN to MAX 2 10 mV/V Short-circuit output current§ Vref = 0 10 35 50 mA † 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. § Duration of the short circuit should not exceed one second. amplifier section (see Figure 1) PARAMETER TEST CONDITIONS TL594C, TL594I UNITPARAMETER TEST CONDITIONS MIN TYP ‡ MAX UNIT Input offset voltage, error amplifierFEEDBACK = 2.5 V 2 10 mV Input offset current FEEDBACK = 2.5 V 25 250 nA Input bias current FEEDBACK = 2.5 V 0.2 1 µA Common-mode input voltage range, error amplifier VCC = 7 V to 40 V 0.3 to VCC −2 V Open-loop voltage amplification, error amplifier ∆VO = 3 V, R L = 2 kΩ, VO = 0.5 V to 3.5 V 70 95 dB Unity-gain bandwidth VO = 0.5 V to 3.5 V,R L = 2 kΩ 800 kHz Common-mode rejection ratio, error amplifier VCC = 40 V, TA = 25°C 65 80 dB Output sink current, FEEDBACK VID = −15 mV to −5 V,FEEDBACK = 0.5 V 0.3 0.7 mA Output source current, FEEDBACK VID = 15 mV to 5 V, FEEDBACK = 3.5 V −2 mA ‡ All typical values, except for parameter changes with temperature, are at TA = 25°C. oscillator section, CT = 0.01 µF, RT = 12 kΩ (see Figure 2) PARAMETER TEST CONDITIONS † TL594C, TL594I UNITPARAMETER TEST CONDITIONS † MIN TYP ‡ MAX UNIT Frequency 10 kHz Standard deviation of frequency¶ All values of VCC , CT, RT, and TA constant 100 Hz/kHz Frequency change with voltage VCC = 7 V to 40 V,TA = 25°C 1 Hz/kHz Frequency change with temperature# ∆TA = MIN to MAX 50 Hz/kHz † 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. ¶ Standard deviation is a measure of the statistical distribution about the mean, as derived from the formula: /C0115/C0043 /C0525 N n/C00431 (xn /C0042X)2 N /C00421 /C0504 # Temperature coefficient of timing capacitor and timing resistor is not taken into account.
/C0084/C0076/C0053/C0057/C0052 /C0080/C0085/C0076/C0083/C0069/C0262/C0087/C0073/C0068/C0084/C0072/C0262/C0077/C0079/C0068/C0085/C0076/C0065/C0084/C0073/C0079/C0078 /C0067/C0079/C0078/C0084/C0082/C0079/C0076 /C0067/C0073/C0082/C0067/C0085/C0073/C0084 /C0261 SLVS052F − APRIL 1988 − REVISED NOVEMBER 2003
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electrical characteristics over recommended operating free-air temperature range, VCC = 15 V, (unless otherwise noted) (continued) dead-time control section (see Figure 2) PARAMETER TEST CONDITIONS TL594C, TL594I UNITPARAMETER TEST CONDITIONS MIN TYP † MAX UNIT Input bias current VI = 0 to 5.25 V −2 −10 µA Maximum duty cycle, each output DTC = 0 V 0.45 Input threshold voltage Zero duty cycle 3 3.3 VInput threshold voltage Maximum duty cycle 0 V † All typical values, except for parameter changes with temperature, are at TA = 25°C. output section PARAMETER TEST CONDITIONS TL594C, TL594I UNITPARAMETER TEST CONDITIONS MIN TYP † MAX UNIT VC = 40 V, VE = 0 V, VCC = 40 V 2 100 Collector off-state current DTC and OUTPUT CTRL = 0 V, VC = 15 V, V E = 0 V, V CC = 1 to 3 V 4 200 µA Emitter off-state current VCC = VC = 40 V, VE = 0 −100 µA Collector-emitter saturation voltage Common emitter VE = 0, IC = 200 mA 1.1 1.3 VCollector-emitter saturation voltageEmitter followerVC = 15 V, IE = −200 mA 1.5 2.5 V Output control input current VI = Vref 3.5 mA † All typical values, except for parameter changes with temperature, are at TA = 25°C. pwm comparator section (see Figure 2) PARAMETER TEST CONDITIONS TL594C, TL594I UNITPARAMETER TEST CONDITIONS MIN TYP † MAX UNIT Input threshold voltage, FEEDBACK Zero duty cycle 4 4.5 V Input sink current, FEEDBACK FEEDBACK = 0.5 V 0.3 0.7 mA † All typical values, except for parameter changes with temperature, are at TA = 25°C. undervoltage lockout section (see Figure 2) PARAMETER TEST CONDITIONS ‡ TL594C, TL594I UNITPARAMETER TEST CONDITIONS ‡ MIN MAX UNIT Threshold voltage TA = 25°C 6 VThreshold voltage ∆TA = MIN to MAX 3.5 6.9 V Hysteresis§ 100 mV ‡ For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. § Hysteresis is the difference between the positive-going input threshold voltage and the negative-going input threshold voltage. PARAMETER TEST CONDITIONS TL594C, TL594I UNITPARAMETER TEST CONDITIONS MIN TYP † MAX UNIT Standby supply current RT at Vref, VCC = 15 V 9 15 mAStandby supply current RT at Vref, All other inputs and outputs openVCC = 40 V 11 18 mA Average supply current DTC = 2 V, See Figure 2 12.4 mA † All typical values, except for parameter changes with temperature, are at TA = 25°C.
† All typical values, except for parameter changes with temperature, are at TA = 25°C. Figure 1. Amplifier-Characteristics Test Circuit
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Figure 2. Operational Test Circuit and Waveforms
/C0084/C0076/C0053/C0057/C0052 /C0080/C0085/C0076/C0083/C0069/C0262/C0087/C0073/C0068/C0084/C0072/C0262/C0077/C0079/C0068/C0085/C0076/C0065/C0084/C0073/C0079/C0078 /C0067/C0079/C0078/C0084/C0082/C0079/C0076 /C0067/C0073/C0082/C0067/C0085/C0073/C0084 /C0261 SLVS052F − APRIL 1988 − REVISED NOVEMBER 2003
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Df = 1%† 100 1 k 4 k 10 k 40 k 100 k 400 k 1 M Oscillator Frequency − Hz OSCILLATOR FREQUENCY AND FREQUENCY VARIATION vs TIMING RESISTANCE 400 1 k 4 k 10 k 40 k 100 k −2% −1% C T = 1 µF 0.01 µF 0.001 µF R T − Timing Resistance − Ω 0.1 µF VCC = 15 V TA = 25°C † Frequency variation (∆f) is the change in oscillator frequency that occurs over the full temperature range. Figure 5 100 1 10 100 1 M Voltage Amplification − dB f − Frequency − Hz AMPLIFIER VOLTAGE AMPLIFICATION vs FREQUENCY 1 k VCC = 15 V ∆VO = 3 V TA = 25°C 10 k 100 k Figure 6
Orderable Device Status(1) Package Type Package Drawing Pins Package Qty Eco Plan(2) Lead/Ball FinishMSL Peak Temp (3) TL594CD ACTIVE SOIC D 16 40 Pb-Free (RoHS) CU NIPDAU Level-2-250C-1 YEAR TL594CDR ACTIVE SOIC D 16 2500 Pb-Free (RoHS) CU NIPDAU Level-2-250C-1 YEAR TL594CN ACTIVE PDIP N 16 25 Pb-Free (RoHS) CU NIPDAU Level-NC-NC-NC TL594CNSR ACTIVE SO NS 16 2000 Pb-Free (RoHS) CU NIPDAU Level-2-260C-1 YEAR/ Level-1-235C-UNLIM TL594CPW ACTIVE TSSOP PW 16 90 Pb-Free (RoHS) CU NIPDAU Level-1-250C-UNLIM TL594CPWR ACTIVE TSSOP PW 16 2000 Pb-Free (RoHS) CU NIPDAU Level-1-250C-UNLIM TL594ID ACTIVE SOIC D 16 40 Pb-Free (RoHS) CU NIPDAU Level-2-250C-1 YEAR TL594IDR ACTIVE SOIC D 16 2500 Pb-Free (RoHS) CU NIPDAU Level-2-250C-1 YEAR TL594IN ACTIVE PDIP N 16 25 Pb-Free (RoHS) CU NIPDAU Level-NC-NC-NC TL594INSR ACTIVE SO NS 16 2000 Pb-Free (RoHS) CU NIPDAU Level-2-260C-1 YEAR/ Level-1-235C-UNLIM TL594IPW ACTIVE TSSOP PW 16 90 Pb-Free (RoHS) CU NIPDAU Level-1-250C-UNLIM TL594IPWR ACTIVE TSSOP PW 16 2000 Pb-Free (RoHS) CU NIPDAU Level-1-250C-UNLIM (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 - May not be currently available - please checkhttp://www.ti.com/productcontentfor the latest availability information and additional product content details. None: Not yet available Lead (Pb-Free). Pb-Free (RoHS):TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Green (RoHS & no Sb/Br):TI defines "Green" to mean "Pb-Free" and in addition, uses package materials that do not contain halogens, including bromine (Br) or antimony (Sb) above 0.1% of total product weight. (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDECindustry standard classifications, and peak solder temperature. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis. PACKAGE OPTION ADDENDUM www.ti.com 4-Mar-2005 Addendum-Page 1
MTSS001C – JANUARY 1995 – REVISED FEBRUARY 1999 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 PW (R-PDSO-G**) PLASTIC SMALL-OUTLINE PACKAGE
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0,65 M0,10 0,10 0,25 0,50 0,75 0,15 NOM Gage Plane 9,80 9,60 7,90 7,70 2016 6,60 6,40 4040064/F 01/97 0,30 6,60 6,20 0,19 4,30 4,50 0,15 A 1,20 MAX 5,10 4,90 3,10 2,90 A MAX A MIN DIM PINS ** 0,05 4,90 5,10 Seating Plane 0°–8° NOTES: A. All linear dimensions are in millimeters. B. This drawing is subject to change without notice. C. Body dimensions do not include mold flash or protrusion not to exceed 0,15. D. Falls within JEDEC MO-153
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