TPS5904, TPS5904A OPTOISOLATED FEEDBACK AMPLIFIERS TAOS017 – SEPTEMBER 1999 Precision Programmable Reference (2.5 V) DCS OR P PACKAGE (TOP VIEW) and an Optocoupler in a Single Package Reference Voltage Tolerance – TPS5904 0.8% – TPS5904A 0.5% Controlled Optocoupler CTRs: – TPS5904 100% to 400% – TPS5904A 150% to 300% High Withstand Voltage (WTV), 7500 V Peak for 1 Minute Safety Regulatory Approvals Pending – UL – FIMKO, SEMKO, NEMKO, DEMKO – EN60065/IEC 65 – EN60950/IEC 950 – VDE 0884, Level 4 (6000-V Insulation) LED COMP GND FB 1 8 2 7 3 6 4 5 NC C E NC NC – No internal connection Description The TPS5904 and TPS5904A optoisolated feedback amplifiers consist of a precision programmable reference and an optocoupler. Reference-voltage tolerance for the TPS5904 is 0.8%, and for the TPS5904A is 0.5%. These devices are primarily intended for use as the error-amplifier/reference/isolation-amplifier element in isolated ac-to-dc power supplies and dc/dc converters. The optocoupler is a gallium-arsenide (GaAs) light-emitting diode that emits at a wavelength of 940 nm, combined with a silicon phototransistor. The current transfer ratio (CTR) ranges from 100% to 400% in the standard version. The TPS5904A version with a 150%-to-300% CTR is available for higher-performance applications. When using the TPS5904 or TPS5904A, power supply designers can reduce component count and save space in tightly packaged designs. The tight-tolerance reference eliminates the need for adjustments in many applications. The TPS5904 and TPS5904A are characterized for operation from –40°C to 100°C and each device is supplied in an 8-pin DIP or in an 8-pin gull-wing surface-mount package (DCS). Typical Application + + VI VO PWM Control 7 TPS5904/A 1 2 6 TPS5904: Reference-voltage tolerance, 0.8% CTR Range, 100% to 400% TPS5904A: Reference-voltage tolerance, 0.5% CTR Range, 150% to 300% www.taosinc.com R1 4 R2 3 Copyright 2000, TAOS Inc. Texas Advanced Optoelectronic Solutions Inc. 800 Jupiter Road, Suite 205 Plano, TX 75074 (972) 673-0759 1 TPS5904, TPS5904A OPTOISOLATED FEEDBACK AMPLIFIERS TAOS017 – SEPTEMBER 1999 Functional Block Diagram LED COMP FB GND 7 1 C 2 6 4 E 3 Terminal Functions TERMINAL NAME NO. C 7 COMP 2 E 6 FB 4 GND 3 LED 1 NC 5, 8 I/O DESCRIPTION Phototransistor collector O Light-emitting diode and TL431 cathodes Phototransistor emitter I Feedback Ground I Light-emitting diode anode No connection Absolute Maximum Ratings at 25°C free-air temperature (unless otherwise noted)† Input power dissipation at (or below) TA = 25°C (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250 mW Input LED current, II(LED) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA Input LED voltage, VI(LED) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 V Input diode reverse voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 V Output power dissipation at (or below) TA = 25°C (see Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 mW Output collector-to-emitter voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 V Output emitter-to-collector voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V Output collector current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA Total continuous power dissipation at (or below) TA = 25°C (see Note 3) . . . . . . . . . . . . . . . . . . . . . . . 350 mW Operating free-air temperature range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40°C to 100°C Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55°C to 150°C Total input-to-output voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.5 kV peak or dc (5.3 kVrms) Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C Flammability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (see Note 4) † 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. Derate linearly from 25°C at a rate of 2.95 mW/°C. 2. Derate linearly from 25°C at a rate of 1.76 mW/°C. 3. Derate linearly from 25°C at a rate of 4.12 mW/°C. 4. Optocoupler total-package flame retardancy is tested to IEC695-2-2 using a flame application time of 30 seconds. Outer mold compound is verified to meet UL 94V-0. www.taosinc.com 2 TPS5904, TPS5904A OPTOISOLATED FEEDBACK AMPLIFIERS TAOS017 – SEPTEMBER 1999 Electrical Characteristics, TA = 25°C (unless otherwise noted) Input PARAMETER TEST CONDITIONS VF Light-emitting diode forward voltage VO(COMP) = VI(FB), See Figure 1 IR Light-emitting diode reverse current VR = 6 V TPS5904 † MIN TYP MAX 1.2 1.4 V 10 µΑ 2.48 2.5 2.52 2.49 2.5 2.51 II(LED) = 10 mA, VO(COMP) = VI(FB), See Figure 1 II(LED) = 10 mA, VO(COMP) = VI(FB), TA = 25°C to 100°C, II(LED) = 10 mA, See Figure 1 UNIT Vref Reference voltage Vref(dev) Deviation of reference voltage over temperature ∆Vref ∆VI(LED) Ratio of reference voltage change-to∆VI(LED) = 4 V to 37 V, change in input light-emitting-diode voltage See Figure 2 II(FB) Feedback input current II(LED) = 10 mA, See Figure 3 R3 = 10 kΩ , Iref(dev) Deviation of reference input current over temperature II(LED) = 10 mA, TA = 25°C to 100°C, R3 = 10 kΩ, See Figure 3 0.5 IDRV(min) Minimum drive current VO(COMP) = VI(FB), See Figure 1 0.45 1 mA II(off) Off-state input light-emitting-diode current VI(LED) = 37 V, See Figure 4 VI(FB) = 0, 0.18 0.5 µΑ |Zka|† Regulator output impedance VO(COMP) = VI(FB), f ≤ 1 kHz, IO(COMP) = 1 mA to 50 mA TPS5904A 25 II(LED) = 10 mA, V mV –1.1 –2 mV/V 1.5 3 µΑ µΑ Ω 0.1 This symbol is not currently listed within EIA or JEDEC standards for semiconductor symbology. Output PARAMETER TEST CONDITIONS ICEO Collect dark current VCE = 35 V, V(BR)ECO Emitter-collector voltage breakdown IE = 100 µA MIN TYP See Figure 5 MAX UNIT 100 nA 7 V Coupler PARAMETER TEST CONDITIONS TPS5904 † MIN VO(COMP) = VI(FB), VCE = 5 V, II(LED) = 5 mA, See Figure 6 Collector-emitter saturation voltage VO(COMP) = VI(FB), IC = 1 mA, II(LED) = 10 mA, See Figure 6 Viso† Isolation voltage IIO = 10 µA, f = 60 Hz Cio Input to output capacitance VIO = 0, f = 1 kHz CTR Current transfer ratio VCE(sat) TPS5904A TYP MAX 100% 400% 150% 300% 0.1 7500 0.2 UNIT V V 0.6 pF This symbol is not currently listed within EIA or JEDEC standards for semiconductor symbology. www.taosinc.com 3 TPS5904, TPS5904A OPTOISOLATED FEEDBACK AMPLIFIERS TAOS017 – SEPTEMBER 1999 PARAMETER MEASUREMENT INFORMATION II(LED) A II(LED) 7 1 7 1 + VF V – R1 2 6 4 V VO(COMP) + V V Vref 6 4 R2 – 2 VI(LED) Vref 3 3 Figure 2. ∆Vref/∆VI(LED) Test Circuit Figure 1. Vref, VF, Imin Test Circuit II(off) II(LED) 7 1 7 1 A II(FB) A 2 V 2 VI(LED) 6 4 6 4 V R3 Vref 3 3 Figure 3. II(FB) Test Circuit Figure 4. II(off) Test Circuit ICEO ICEO 1 II(LED) 7 2 2 6 + V – 6 4 V VO(COMP) Vref 3 3 Figure 6. CTR, VCE(sat) Test Circuit Figure 5. ICEO Test Circuit www.taosinc.com 4 A VCE VCE 4 7 1 A TPS5904, TPS5904A OPTOISOLATED FEEDBACK AMPLIFIERS TAOS017 – SEPTEMBER 1999 TYPICAL CHARACTERISTICS INPUT LIGHT-EMITTING-DIODE CURRENT vs REFERENCE VOLTAGE 1400 II(LED) – Input Light-Emitting-Diode Current – mA II(LED) – Input Light-Emitting-Diode Current – µ A INPUT LIGHT-EMITTING-DIODE CURRENT vs REFERENCE VOLTAGE VO(COMP) = VI(FB) TA = 25°C 1200 800 600 400 200 0 0 0.5 1 1.5 2 2.5 3 60 VO(COMP) = VI(FB) TA = 25°C 50 40 30 20 10 0 0 Vref – Reference Voltage – V 0.5 1 Vref / VI(LED) – Ratio of Delta Reference Voltage to Delta LED Voltage – V VO(COMP) = VI(FB) II(LED) = 10 mA Vref – Reference Voltage – V 2.52 2.51 2.5 2.49 2.48 25 50 75 TA – Free-Air Temperature – °C 100 – 0.95 VI(LED) = 4 V to 37 V II(LED) = 10 mA – 1.05 – 1.15 – 1.25 – 1.35 – 1.45 – 50 – 25 0 25 50 75 100 TA – Free-Air Temperature – °C Figure 9 www.taosinc.com 3 RATIO OF DELTA REFERENCE VOLTAGE TO DELTA LED VOLTAGE vs FREE-AIR TEMPERATURE 2.53 0 2.5 Figure 8 REFERENCE VOLTAGE vs FREE-AIR TEMPERATURE – 25 2 Vref – Reference Voltage – V Figure 7 2.47 – 50 1.5 Figure 10 5 TPS5904, TPS5904A OPTOISOLATED FEEDBACK AMPLIFIERS TAOS017 – SEPTEMBER 1999 TYPICAL CHARACTERISTICS OFF-STATE INPUT LIGHT-EMITTING-DIODE CURRENT vs FREE-AIR TEMPERATURE REFERENCE CURRENT vs FREE-AIR TEMPERATURE 2.5 0.25 VI(LED) = 37 V I I(off) – Off-State Input Light-Emitting-Diode Current – µ A I I – Reference Current – µ A II(LED) = 10 mA R3 = 10 kΩ 2 1.5 1 0.5 0 – 25 0 25 50 75 100 0.2 0.15 0.1 0.05 0 – 50 TA – Free-Air Temperature – °C 0 – 25 25 NORMALIZED CURRENT TRANSFER RATIO RELATIVE TO VALUE AT TA = 25°C vs FREE-AIR TEMPERATURE 10000 1.2 VCE = 5 V VO(COMP) = VI(FB) IA = 5 mA CTR – Normalized Current Transfer Ratio Relative to Value at TA = 25 °C VCE = 35 V I CEO – Collector Dark Current – nA 100 Figure 12 COLLECTOR DARK CURRENT vs FREE-AIR TEMPERATURE 1000 100 10 1 – 25 0 25 50 75 TA – Free-Air Temperature – °C 100 1 0.8 0.6 0.4 0.2 0 – 50 – 25 0 25 50 75 100 TA – Free-Air Temperature – °C Figure 13 Figure 14 www.taosinc.com 6 75 TA – Free-Air Temperature – °C Figure 11 0.1 – 50 50 TPS5904, TPS5904A OPTOISOLATED FEEDBACK AMPLIFIERS TAOS017 – SEPTEMBER 1999 TYPICAL CHARACTERISTICS COLLECTOR-TO-EMITTER SATURATION VOLTAGE vs FREE-AIR TEMPERATURE VCE(sat) – Collector-to-Emitter Saturation Voltage – V CURRENT TRANSFER RATIO vs INPUT LIGHT-EMITTING-DIODE CURRENT 300 CTR – Current Transfer Ratio – % VCE = 5 V 250 200 150 100 50 0 1 2 3 5 10 20 30 50 0.20 II(LED) = 10 mA IC = 1 mA 0.18 0.16 0.14 0.12 0.10 0.08 – 50 – 25 0 50 75 100 TA – Free-Air Temperature – °C II(LED) – Input Light-Emitting-Diode Current – mA Figure 15 I I(LED) – Input Light-Emitting-Diode Forward Current – mA 25 Figure 16 INPUT LIGHT-EMITTING-DIODE FORWARD CURRENT vs LIGHT-EMITTING-DIODE FORWARD VOLTAGE 60 50 40 TA = 75°C 30 TA = 25°C 20 TA = –25°C 10 0 0.8 0.9 1 1.1 1.2 1.3 1.4 VF – Light-Emitting-Diode Forward Voltage – V Figure 17 www.taosinc.com 7 TPS5904, TPS5904A OPTOISOLATED FEEDBACK AMPLIFIERS TAOS017 – SEPTEMBER 1999 MECHANICAL DATA DCS PLASTIC DUAL SMALL-OUTLINE OPTO COUPLER 0.023 (0,58) 0.013 (0,33) 0.092 (2,34) TYP 0.045 (1,14) 0.035 (0,89) 0.055 (1,40) 0.045 (1,14) 8 5 0.405 (10,29) 0.385 (9,78) 0.008 (0,20) NOM 0.260 (6,60) 0.240 (6,10) 1 Gage Plane 4 0.055 (1,40) 0.035 (0,89) 0.100 (2,54) 0.390 (9,91) 0.370 (9,40) 0°–5° 0.010 (0,25) 0.030 (0,76) MIN 0.150 (3,81) MAX Seating Plane 0.020 (0,51) MAX 0.004 (0,10) NOTES: A. All linear dimensions are in inches(millimeters). B. This drawing is subject to change without notice. www.taosinc.com 8 TPS5904, TPS5904A OPTOISOLATED FEEDBACK AMPLIFIERS TAOS017 – SEPTEMBER 1999 MECHANICAL DATA P PLASTIC DUAL-IN-LINE PACKAGE 0.400 (10,60) 0.355 (9,02) 8 5 0.260 (6,60) 0.240 (6,10) 1 4 0.070 (1,78) MAX 0.310 (7,87) 0.290 (7,37) 0.020 (0,51) MIN 0.200 (5,08) MAX Seating Plane 0.125 (3,18) MIN 0.100 (2,54) 0.021 (0,53) 0.015 (0,38) 0°–15° 0.010 (0,25) M 0.010 (0,25) NOM NOTES: A. All linear dimensions are in inches (millimeters). B. This drawing is subject to change without notice. C. Falls within JEDEC MS-001 www.taosinc.com 9 TPS5904, TPS5904A OPTOISOLATED FEEDBACK AMPLIFIERS TAOS017 – SEPTEMBER 1999 PRODUCTION DATA — information in this document is current at publication date. Products conform to specifications in accordance with the terms of Texas Advanced Optoelectronic Solutions, Inc. standard warranty. Production processing does not necessarily include testing of all parameters. NOTICE Texas Advanced Optoelectronic Solutions, Inc. (TAOS) reserves the right to make changes to the products contained in this document to improve performance or for any other purpose, or to discontinue them without notice. Customers are advised to contact TAOS to obtain the latest product information before placing orders or designing TAOS products into systems. TAOS assumes no responsibility for the use of any products or circuits described in this document or customer product design, conveys no license, either expressed or implied, under any patent or other right, and makes no representation that the circuits are free of patent infringement. TAOS further makes no claim as to the suitability of its products for any particular purpose, nor does TAOS assume any liability arising out of the use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS, INC. PRODUCTS ARE NOT DESIGNED OR INTENDED FOR USE IN CRITICAL APPLICATIONS IN WHICH THE FAILURE OR MALFUNCTION OF THE TAOS PRODUCT MAY RESULT IN PERSONAL INJURY OR DEATH. USE OF TAOS PRODUCTS IN LIFE SUPPORT SYSTEMS IS EXPRESSLY UNAUTHORIZED AND ANY SUCH USE BY A CUSTOMER IS COMPLETELY AT THE CUSTOMER’S RISK. www.taosinc.com 10