TL594

UNISONIC TECHNOLOGIES CO., LTD TL594 PULSE-WIDTH-MODULATION CONTROL CIRCUIT SOP-16 LINEAR INTEGRATED CIRCUIT DESCRIPTION The UTC TL594 incorporates all the functions required for a pulse-width-modulation (PWM) control circuit. It is pin compatible with TL494 with upgrade performance. D IP-16 TSSOP-16 *Pb-free plating product number: TL594L FEATURES * Outputs for 200-mA Sink or Source Current * Output is Single-Ended or Push-Pull Operation Selectable suppression circuit * Internal Circuitry Prohibits Double Pulse at Either Output * Variable Dead Time * Internal Reference Supply Deliuer 5V within 1% tolerance * Undervoltage Lockout for Low-VCC Conditions ORDERING INFORMATION Order Number Normal Lead Free Plating TL594-D16-T TL594L-D16-T TL594-P16-R TL594L-P16-R TL594-P16-T TL594L-P16-T TL594-S16-R TL594L-S16-R TL594-S16-T TL594L-S16-T Package DIP-16 TSSOP-16 TSSOP-16 SOP-16 SOP-16 Packing Tube Tape Reel Tube Tape Reel Tube TL594L-D16-T (1)Packing Type (2)Package Type (3)Lead Plating (1) R: Tape Reel, T: Tube (2) D16: DIP-16, S16: SOP-16, P16: TSSOP-16 (3) L: Lead Free Plating, Blank: Pb/Sn www.unisonic.com.tw Copyright © 2005 Unisonic Technologies Co., Ltd 1 of 8 QW-R103-031,A TL594 PIN CONFIGURATION LINEAR INTEGRATED CIRCUIT DIP-16/SOP-16/TSSOP-16 PACKAGE (TOP VIEW) 1IN+ 1IN − FEEDBACK DTC CT RT GND C1 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 2 IN+ 2INREF Output CTRL VCC C2 E2 E1 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 8 QW-R103-031,A TL594 FUNCTIONAL BLOCK DIAGRAM 4 0.1V Deadtime Comparator Deadtime Control + CK CT RT Oscillator Q LINEAR INTEGRATED CIRCUIT Output Control 13 11 Q1 10 8 Q2 9 C2 E2 C1 E1 Flip–Flop D Q IN+ ININ+ IN- 1 2 16 15 Error Amp 1 + + 2 1 Error Amp 2 0.7mA 3 Feedback PWM Comparator Input 12 VCC 7 Gnd 14 Ref. Output UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw + 0.7V PWM Comparator UV Lockout Reference Regulator 3 of 8 QW-R103-031,A TL594 ABSOLUTE MAXIMUM RATINGS LINEAR INTEGRATED CIRCUIT (over operating free-air temperature range (unless otherwise noted)Note1) PARAMETER SYMBOL RATINGS UNIT Supply Voltage VCC 41 V Amplifier input voltage VCC + 0.3 V Collector output voltage 41 V Collector output current 250 mA Operating Junction Temperature TJ +150 °C Operating Free-Air Temperature TA -40 ~ +85 °C Storage Temperature TSTG -40 ~ 150 °C Note 1. Stresses beyond “absolute maximum ratings” may cause permanent damage to the device. For reliability, considerations use 80% or below for application is recommended. THERMAL DATA SYMBOL RATINGS UNIT DIP package 67 Package thermal impedance θJA °C/W SOP package 64 (see Notes 2 and 3) TSSOP package 108 Note 1. 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. 2. The package thermal impedance is calculated in accordance with JESD 51-7. PARAMETER RECOMMENDED OPERATING CONDITIONS PARAMETER Supply voltage Amplifier input voltage Collector output voltage Collector output current (each transistor) Current into feedback terminal Timing capacitor Timing resistor Oscillator frequency Operating free-air temperature Operating free-air temperature SYMBOL VCC VI VO MIN 7 -0.3 MAX 40 VCC-2 40 200 0.3 10000 500 300 85 UNIT V V V mA mA nF kΩ kHz °C CT RT fOSC TA 0.47 1.8 1 -40 FUNCTION TABLE INPUT Output CTRL VI = 0 VI = VREF OUTPUT FUNCTION Single-ended or parallel output Normal push-pull operation UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 8 QW-R103-031,A TL594 ELECTRICAL CHARACTERISTICS LINEAR INTEGRATED CIRCUIT (Testing conditions is set at VCC=15V, 25℃ unless otherwise specified) reference section PARAMETER SYMBOL TEST CONDITIONS Output voltage (REF) Input regulation Output regulation Output-voltage change with temperature Short-circuit output current (Note1) VREF VIN VOUT IOUT = 1mA, Ta = 25°C VCC = 7V ~ 40V, Ta = 25°C IOUT = 1 ~ 10mA, Ta = 25°C ∆TA = MIN ~ MAX VREF = 0 MIN 4.95 TYP 5 2 14 2 MAX 5.05 25 35 10 50 MAX 10 250 1 UNIT V mV mV mV/V mA UNIT mV nA µA V 10 MIN 35 TYP 2 25 0.2 amplifier section (see Figure 1) PARAMETER SYMBOL TEST CONDITIONS Input offset voltage, error amplifier VI(OFF) FEEDBACK = 2.5V Input offset current II(OFF) FEEDBACK = 2.5V Input bias current II(BIAS) FEEDBACK = 2.5V Common-mode input voltage VCC=7V ~ 40V range, error amplifier ∆VOUT=3V, RL =2 kΩ, Open-loop voltage amplification, error amplifier VOUT = 0.5V ~ 3.5V Unity-gain bandwidth BW VOUT = 0.5V ~ 3.5V, RL = 2kΩ Common-mode rejection ratio, error VCC = 40V, TA = 25°C amplifier VID =-15mV ~ -5V, Output sink current, FEEDBACK IO(SINK) FEEDBACK = 0.5V VID = 15mV ~ 5V, Output source current, FEEDBACK IO(SOURCE) FEEDBACK = 3.5V 0.3 to VCC−2 70 95 800 65 0.3 -2 80 0.7 dB kHz dB mA mA oscillator section, CT = 0.01µF, RT = 12kΩ (see Figure 2) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Frequency F 10 kHz All values of VCC, CT, RT, and TA Standard deviation of 100 Hz/kHz frequency(Note1) constant Frequency change with voltage VCC = 7V ~ 40V, TA = 25°C 1 Hz/kHz Frequency change with ∆TA = MIN ~ MAX 50 Hz/kHz temperature Note 1. Standard deviation is a measure of the statistical distribution about the mean, as derived from the formula: σ= ∑ (x n =1 N n − x)2 N −1 MIN 0.45 3 0 3.3 V TYP -2 MAX -10 UNIT µA dead-time control section (see Figure 2) PARAMETER SYMBOL TEST CONDITIONS Input bias current II(BIAS) VI = 0 ~ 5.25V Maximum duty cycle, each output DTC = 0V Zero duty cycle Input threshold voltage VI(THD) Maximum duty cycle UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 8 QW-R103-031,A TL594 ELECTRICAL CHARACTERISTICS(Cont.) output section PARAMETER Collector off-state current Emitter off-state current Collector-emitter Common emitter saturation Emitter follower voltage Output control input current SYMBOL IC(OFF) IE(OFF) VCE LINEAR INTEGRATED CIRCUIT TEST CONDITIONS VC = 40V, VE = 0V, VCC = 40V DTC and Output CTRL = 0V, VC = 15V, VE = 0V, VCC = 1 ~ 3V VCC = VC = 40V, VE = 0 VE = 0, IC = 200mA VC = 15V, IE = −200mA VI = VREF MIN TYP 2 4 1.1 1.5 MAX 100 200 -100 1.3 2.5 3.5 UNIT µA µA V mA UNIT V mA pwm comparator section (see Figure 2) PARAMETER SYMBOL TEST CONDITIONS Input threshold voltage, VI(THD) Zero duty cycle FEEDBACK Input sink current, FEEDBACK II(SINK) FEEDBACK = 0.5V undervoltage lockout section (see Figure 2) PARAMETER SYMBOL TEST CONDITIONS TA = 25°C Threshold voltage VTHD ∆TA = MIN ~ MAX Hysteresis VHYS RT at VREF VCC = 15V Standby supply current IST-BY All other inputs and VCC = 40V outputs open Average supply current DTC = 2V, See Figure 2 switching characteristics, TA = 25°C PARAMETER SYMBOL Output-voltage rise time TR Output-voltage fall time TF Output-voltage rise time TR Output-voltage fall time TF TEST CONDITIONS Common-emitter configuration (see Figure 3) Emitter-follower configuration (see Figure 4) MIN TYP 4 MAX 4.5 0.3 MIN 3.5 100 0.7 TYP MAX 6 6.9 15 18 UNIT V mV 9 11 12.4 MIN TYP 100 30 200 45 mA mA MAX 200 100 400 100 UNIT ns ns ns ns UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 6 of 8 QW-R103-031,A TL594 TYPICAL APPLICATIONS INFORMATION +Vin = 8.0V ~ 20V LINEAR INTEGRATED CIRCUIT 12 1 2 1.0M 33k 0.01 0.01 + UTC TL594 C2 OC VREF DT C T R T Gnd E1 E2 7 13 14 4 5 6 9 10 + 10 10k 15k 0.001 VCC C1 8 47 Tip 32 + Tip 50 32 25V 47 T1 1N4934 +VO = 28V I O = 0.2A L1 3 Comp 15 16 + + 22k 50 35V 4.7k 1.0 + 50 35V 11 1N4934 240 4.7k 4.7k All capacitors in μF Push-Pull Operation 1.0mH @ 2.0A +Vin = 10V ~ 40V Tip 32A +VO = 5.0V IO = 1.0A 47 150 12 VCC 0.1 Comp 50 50V + UTC TL594 + Vref CT 5 RT 6 D.T. O.C. Gnd E1 E2 4 13 7 9 10 150 0.001 47k + 3 2 1 14 15 16 5.1k MR850 500 10V 5.1k 5.1k + 1.0M 47k 8 C1 11 C2 + 50 10V 0.1 Single-Ended Operation UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 7 of 8 QW-R103-031,A TL594 TYPICAL CHARACTERISTICS Figure 5. LINEAR INTEGRATED CIRCUIT Oscillator Frequency and Frequency Variation Timing Resistance 100k 40k 10k 4k 1k 400 100 40 10 1k 0.1μF 0.01μF (Note1) vs VCC = 15V TA = 25°C 0.001μF Oscillator Frequency − Hz 4k 40k 100k 10k Timing Resistance, RT (Ω) 400k 1M Note 1. Frequency variation (∆f) is the change in oscillator frequency that occurs over the full temperature range. Figure 6. Amplifier Voltage Amplification vs Frequency 100 90 80 VCC = 15V ΔVOUT = 3V TA = 25°C Voltage Amplification − dB 70 60 50 40 30 20 10 0 1 10 1k 10k 100 Frequency, f (Hz) 100k 1M UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 8 of 8 QW-R103-031,A